diff --git a/phase2/src/bin/beacon.rs b/phase2/src/bin/beacon.rs
index 04676d6..bd223df 100644
--- a/phase2/src/bin/beacon.rs
+++ b/phase2/src/bin/beacon.rs
@@ -64,7 +64,7 @@ fn main() {
         for b in cur_hash.iter() {
             print!("{:02x}", b);
         }
-        println!("");
+        println!();
 
         let mut digest = &cur_hash[..];
 
diff --git a/powersoftau/src/bin/beacon_constrained.rs b/powersoftau/src/bin/beacon_constrained.rs
index 3c7c28c..1edd6f4 100644
--- a/powersoftau/src/bin/beacon_constrained.rs
+++ b/powersoftau/src/bin/beacon_constrained.rs
@@ -51,7 +51,7 @@ fn main() {
         let mut cur_hash: [u8; 32] = hex!("0000000000000000000a558a61ddc8ee4e488d647a747fe4dcc362fe2026c620");
 
         // Performs 2^n hash iterations over it
-        const N: usize = 10;
+        const N: u64 = 10;
 
         for i in 0..(1u64<<N) {
             // Print 1024 of the interstitial states
@@ -63,7 +63,7 @@ fn main() {
                 for b in cur_hash.iter() {
                     print!("{:02x}", b);
                 }
-                println!("");
+                println!();
             }
 
             let mut h = Sha256::new();
@@ -75,7 +75,7 @@ fn main() {
         for b in cur_hash.iter() {
             print!("{:02x}", b);
         }
-        println!("");
+        println!();
 
         let mut digest = &cur_hash[..];
 
@@ -91,7 +91,7 @@ fn main() {
 
     // Try to load challenge file from disk.
     let reader = OpenOptions::new()
-                            .read(true)
+        .read(true)
         .open(challenge_filename)
         .expect("unable open challenge file in this directory");
 
@@ -115,9 +115,9 @@ fn main() {
 
     // Create response file in this directory
     let writer = OpenOptions::new()
-                            .read(true)
-                            .write(true)
-                            .create_new(true)
+        .read(true)
+        .write(true)
+        .create_new(true)
         .open(response_filename)
         .expect("unable to create response file in this directory");
 
@@ -148,7 +148,7 @@ fn main() {
                 }
                 print!(" ");
             }
-            println!("");
+            println!();
         }
 
         (&mut writable_map[0..]).write(current_accumulator_hash.as_slice()).expect("unable to write a challenge hash to mmap");
@@ -192,7 +192,7 @@ fn main() {
             }
             print!(" ");
         }
-        println!("");
+        println!();
     }
 
     println!("Thank you for your participation, much appreciated! :)");
diff --git a/powersoftau/src/bin/compute_constrained.rs b/powersoftau/src/bin/compute_constrained.rs
index 358937d..0eeb30f 100644
--- a/powersoftau/src/bin/compute_constrained.rs
+++ b/powersoftau/src/bin/compute_constrained.rs
@@ -132,7 +132,7 @@ fn main() {
                 }
                 print!(" ");
             }
-            println!("");
+            println!();
         }
 
         (&mut writable_map[0..]).write(current_accumulator_hash.as_slice()).expect("unable to write a challenge hash to mmap");
@@ -197,7 +197,7 @@ fn main() {
             }
             print!(" ");
         }
-        println!("");
+        println!();
     }
 
     println!("Thank you for your participation, much appreciated! :)");
diff --git a/powersoftau/src/bin/new_constrained.rs b/powersoftau/src/bin/new_constrained.rs
index 588458e..211afc5 100644
--- a/powersoftau/src/bin/new_constrained.rs
+++ b/powersoftau/src/bin/new_constrained.rs
@@ -61,7 +61,7 @@ fn main() {
             }
             print!(" ");
         }
-        println!("");
+        println!();
     }
 
     BachedAccumulator::<Bn256, Bn256CeremonyParameters>::generate_initial(&mut writable_map, COMPRESS_NEW_CHALLENGE).expect("generation of initial accumulator is successful");
@@ -81,7 +81,7 @@ fn main() {
             }
             print!(" ");
         }
-        println!("");
+        println!();
     }
 
     println!("Wrote a fresh accumulator to challenge file");
diff --git a/powersoftau/src/bin/verify.rs b/powersoftau/src/bin/verify.rs
index 9514538..12417f5 100644
--- a/powersoftau/src/bin/verify.rs
+++ b/powersoftau/src/bin/verify.rs
@@ -155,9 +155,9 @@ fn new_accumulator_for_verify() -> BachedAccumulator<Bn256, Bn256CeremonyParamet
         }
 
         let file = OpenOptions::new()
-                                .read(true)
-                                .write(true)
-                                .create_new(true)
+            .read(true)
+            .write(true)
+            .create_new(true)
             .open(file_name)
             .expect("unable to create `./tmp_initial_challenge`");
 
@@ -170,8 +170,8 @@ fn new_accumulator_for_verify() -> BachedAccumulator<Bn256, Bn256CeremonyParamet
     }
 
     let reader = OpenOptions::new()
-                            .read(true)
-                            .open(file_name)
+        .read(true)
+        .open(file_name)
         .expect("unable open transcript file in this directory");
 
     let readable_map = unsafe { MmapOptions::new().map(&reader).expect("unable to create a memory map for input") };
@@ -194,7 +194,7 @@ fn main() {
 
     // Try to load transcript file from disk.
     let reader = OpenOptions::new()
-                            .read(true)
+        .read(true)
         .open(transcript_filename)
         .expect("unable open transcript file in this directory");
 
@@ -274,7 +274,7 @@ fn main() {
             println!(" ... FAILED");
             panic!("INVALID RESPONSE FILE!");
         } else {
-            println!("");
+            println!();
         }
 
         current_accumulator = response_file_accumulator;
@@ -376,11 +376,11 @@ fn main() {
 
         // Create the parameter file
         let writer = OpenOptions::new()
-                            .read(false)
-                            .write(true)
-                            .create_new(true)
-                            .open(paramname)
-                            .expect("unable to create parameter file in this directory");
+            .read(false)
+            .write(true)
+            .create_new(true)
+            .open(paramname)
+            .expect("unable to create parameter file in this directory");
 
         let mut writer = BufWriter::new(writer);
 
diff --git a/powersoftau/src/bin/verify_transform_constrained.rs b/powersoftau/src/bin/verify_transform_constrained.rs
index a503268..7d30a43 100644
--- a/powersoftau/src/bin/verify_transform_constrained.rs
+++ b/powersoftau/src/bin/verify_transform_constrained.rs
@@ -36,7 +36,7 @@ fn main() {
     
     // Try to load challenge file from disk.
     let challenge_reader = OpenOptions::new()
-                            .read(true)
+        .read(true)
         .open(challenge_filename)
         .expect("unable open challenge file in this directory");
 
@@ -59,7 +59,7 @@ fn main() {
 
     // Try to load response file from disk.
     let response_reader = OpenOptions::new()
-                            .read(true)
+        .read(true)
         .open(response_filename)
         .expect("unable open response file in this directory");
 
@@ -95,7 +95,7 @@ fn main() {
             }
             print!(" ");
         }
-        println!("");
+        println!();
     }
 
     // Check the hash chain - a new response must be based on the previous challenge!
@@ -113,7 +113,7 @@ fn main() {
                 }
                 print!(" ");
             }
-            println!("");
+            println!();
         }
 
         if &response_challenge_hash[..] != current_accumulator_hash.as_slice() {
@@ -132,7 +132,7 @@ fn main() {
             }
             print!(" ");
         }
-        println!("");
+        println!();
     }
 
     // get the contributor's public key
@@ -169,9 +169,9 @@ fn main() {
 
         // Create new challenge file in this directory
         let writer = OpenOptions::new()
-                                .read(true)
-                                .write(true)
-                                .create_new(true)
+            .read(true)
+            .write(true)
+            .create_new(true)
             .open(new_challenge_filename)
             .expect("unable to create new challenge file in this directory");
 
@@ -209,7 +209,7 @@ fn main() {
                 }
                 print!(" ");
             }
-            println!("");
+            println!();
         }
 
         println!("Done! new challenge file contains the new challenge file. The other files");