[INFO] fetching crate octavo-digest 0.1.2...
[INFO] checking octavo-digest-0.1.2 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] extracting crate octavo-digest 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate octavo-digest 0.1.2 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate octavo-digest 0.1.2
[INFO] finished tweaking crates.io crate octavo-digest 0.1.2
[INFO] tweaked toml for crates.io crate octavo-digest 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e16e47389ce3e6e52ef8b21f5cd32381cf79dfcfc447e06487a7a50b03113713
[INFO] running `Command { std: "docker" "start" "-a" "e16e47389ce3e6e52ef8b21f5cd32381cf79dfcfc447e06487a7a50b03113713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e16e47389ce3e6e52ef8b21f5cd32381cf79dfcfc447e06487a7a50b03113713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e16e47389ce3e6e52ef8b21f5cd32381cf79dfcfc447e06487a7a50b03113713", kill_on_drop: false }`
[INFO] [stdout] e16e47389ce3e6e52ef8b21f5cd32381cf79dfcfc447e06487a7a50b03113713
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 57c292f88b864365e151528063ebec30a2f972c4a42096cb3b717277e042ee3c
[INFO] running `Command { std: "docker" "start" "-a" "57c292f88b864365e151528063ebec30a2f972c4a42096cb3b717277e042ee3c", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking octavo-digest v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blake2.rs:209:21
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 let mut out = out.as_mut();
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 222 | blake2!(Blake2s<u32>, BLAKE2S_INIT, FixedBuffer64, U64);
[INFO] [stdout]     | -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blake2.rs:209:21
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 let mut out = out.as_mut();
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 223 | blake2!(Blake2b<u64>, BLAKE2B_INIT, FixedBuffer128, U128);
[INFO] [stdout]     | ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/md5.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |         let mut out = out.as_mut();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ripemd.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let mut out = out.as_mut();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha1.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let mut out = out.as_mut();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 423 | / impl_sha!(
[INFO] [stdout] 424 | |     /// SHA-224 implementation
[INFO] [stdout] 425 | |     ///
[INFO] [stdout] 426 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 427 | |     low  Sha224, SHA224_INIT, U224);
[INFO] [stdout]     | |____________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 428 | / impl_sha!(
[INFO] [stdout] 429 | |     /// SHA-256 implementation
[INFO] [stdout] 430 | |     ///
[INFO] [stdout] 431 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 432 | |     low  Sha256, SHA256_INIT, U256);
[INFO] [stdout]     | |____________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 433 | / impl_sha!(
[INFO] [stdout] 434 | |     /// SHA-384 implementation
[INFO] [stdout] 435 | |     ///
[INFO] [stdout] 436 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 437 | |     high Sha384, SHA384_INIT, U384);
[INFO] [stdout]     | |____________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 438 | / impl_sha!(
[INFO] [stdout] 439 | |     /// SHA-512 implementation
[INFO] [stdout] 440 | |     ///
[INFO] [stdout] 441 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 442 | |     high Sha512, SHA512_INIT, U512);
[INFO] [stdout]     | |____________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 444 | / impl_sha!(
[INFO] [stdout] 445 | |     /// SHA-512/224 implementation
[INFO] [stdout] 446 | |     ///
[INFO] [stdout] 447 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 448 | |     high Sha512224, SHA512_224_INIT, U224);
[INFO] [stdout]     | |___________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 449 | / impl_sha!(
[INFO] [stdout] 450 | |     /// SHA-512/256 implementation
[INFO] [stdout] 451 | |     ///
[INFO] [stdout] 452 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 453 | |     high Sha512256, SHA512_256_INIT, U256);
[INFO] [stdout]     | |___________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha3.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |                   let mut ret = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 242 | / sha3_impl!(
[INFO] [stdout] 243 | |     /// SHA3-224 implementation
[INFO] [stdout] 244 | |     ///
[INFO] [stdout] 245 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 246 | |     struct Sha224 -> U224, U144);
[INFO] [stdout]     | |_________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha3.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |                   let mut ret = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 247 | / sha3_impl!(
[INFO] [stdout] 248 | |     /// SHA3-256 implementation
[INFO] [stdout] 249 | |     ///
[INFO] [stdout] 250 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 251 | |     struct Sha256 -> U256, U136);
[INFO] [stdout]     | |_________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha3.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |                   let mut ret = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 252 | / sha3_impl!(
[INFO] [stdout] 253 | |     /// SHA3-384 implementation
[INFO] [stdout] 254 | |     ///
[INFO] [stdout] 255 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 256 | |     struct Sha384 -> U384, U104);
[INFO] [stdout]     | |_________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha3.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |                   let mut ret = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 257 | / sha3_impl!(
[INFO] [stdout] 258 | |     /// SHA3-512 implementation
[INFO] [stdout] 259 | |     ///
[INFO] [stdout] 260 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 261 | |     struct Sha512 -> U512, U72);
[INFO] [stdout]     | |________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tiger/mod.rs:172:25
[INFO] [stdout]     |
[INFO] [stdout] 172 |                       let mut out = out.as_mut();
[INFO] [stdout]     |                           ----^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 182 | / tiger_impl!(
[INFO] [stdout] 183 | |     /// Tiger implementation
[INFO] [stdout] 184 | |     ///
[INFO] [stdout] 185 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 186 | |     struct Tiger,  0x01);
[INFO] [stdout]     | |_________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tiger/mod.rs:172:25
[INFO] [stdout]     |
[INFO] [stdout] 172 |                       let mut out = out.as_mut();
[INFO] [stdout]     |                           ----^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 187 | / tiger_impl!(
[INFO] [stdout] 188 | |     /// Tiger2 implementation
[INFO] [stdout] 189 | |     ///
[INFO] [stdout] 190 | |     /// The only difference between original Tiger and Tiger2 is padding value which is `0b00000001`
[INFO] [stdout] ...   |
[INFO] [stdout] 194 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 195 | |     struct Tiger2, 0x80);
[INFO] [stdout]     | |_________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `num::<impl u32>::wrapping_add` that must be used
[INFO] [stdout]    --> src/blake2.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         self.0.wrapping_add( val as u32 );
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this returns the result of the operation, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `num::<impl u64>::wrapping_add` that must be used
[INFO] [stdout]    --> src/blake2.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         self.0.wrapping_add(val as u64);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this returns the result of the operation, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking toml v0.1.30
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> tests/utils/tests.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let data = try!(d.read_str());
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blake2.rs:209:21
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 let mut out = out.as_mut();
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 222 | blake2!(Blake2s<u32>, BLAKE2S_INIT, FixedBuffer64, U64);
[INFO] [stdout]     | -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blake2.rs:209:21
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 let mut out = out.as_mut();
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 223 | blake2!(Blake2b<u64>, BLAKE2B_INIT, FixedBuffer128, U128);
[INFO] [stdout]     | ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/md5.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |         let mut out = out.as_mut();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ripemd.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let mut out = out.as_mut();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha1.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let mut out = out.as_mut();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 423 | / impl_sha!(
[INFO] [stdout] 424 | |     /// SHA-224 implementation
[INFO] [stdout] 425 | |     ///
[INFO] [stdout] 426 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 427 | |     low  Sha224, SHA224_INIT, U224);
[INFO] [stdout]     | |____________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 428 | / impl_sha!(
[INFO] [stdout] 429 | |     /// SHA-256 implementation
[INFO] [stdout] 430 | |     ///
[INFO] [stdout] 431 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 432 | |     low  Sha256, SHA256_INIT, U256);
[INFO] [stdout]     | |____________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 433 | / impl_sha!(
[INFO] [stdout] 434 | |     /// SHA-384 implementation
[INFO] [stdout] 435 | |     ///
[INFO] [stdout] 436 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 437 | |     high Sha384, SHA384_INIT, U384);
[INFO] [stdout]     | |____________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 438 | / impl_sha!(
[INFO] [stdout] 439 | |     /// SHA-512 implementation
[INFO] [stdout] 440 | |     ///
[INFO] [stdout] 441 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 442 | |     high Sha512, SHA512_INIT, U512);
[INFO] [stdout]     | |____________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 444 | / impl_sha!(
[INFO] [stdout] 445 | |     /// SHA-512/224 implementation
[INFO] [stdout] 446 | |     ///
[INFO] [stdout] 447 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 448 | |     high Sha512224, SHA512_224_INIT, U224);
[INFO] [stdout]     | |___________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha2.rs:394:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                   let mut out = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 449 | / impl_sha!(
[INFO] [stdout] 450 | |     /// SHA-512/256 implementation
[INFO] [stdout] 451 | |     ///
[INFO] [stdout] 452 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 453 | |     high Sha512256, SHA512_256_INIT, U256);
[INFO] [stdout]     | |___________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha3.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |                   let mut ret = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 242 | / sha3_impl!(
[INFO] [stdout] 243 | |     /// SHA3-224 implementation
[INFO] [stdout] 244 | |     ///
[INFO] [stdout] 245 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 246 | |     struct Sha224 -> U224, U144);
[INFO] [stdout]     | |_________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha3.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |                   let mut ret = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 247 | / sha3_impl!(
[INFO] [stdout] 248 | |     /// SHA3-256 implementation
[INFO] [stdout] 249 | |     ///
[INFO] [stdout] 250 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 251 | |     struct Sha256 -> U256, U136);
[INFO] [stdout]     | |_________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha3.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |                   let mut ret = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 252 | / sha3_impl!(
[INFO] [stdout] 253 | |     /// SHA3-384 implementation
[INFO] [stdout] 254 | |     ///
[INFO] [stdout] 255 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 256 | |     struct Sha384 -> U384, U104);
[INFO] [stdout]     | |_________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sha3.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |                   let mut ret = out.as_mut();
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 257 | / sha3_impl!(
[INFO] [stdout] 258 | |     /// SHA3-512 implementation
[INFO] [stdout] 259 | |     ///
[INFO] [stdout] 260 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 261 | |     struct Sha512 -> U512, U72);
[INFO] [stdout]     | |________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tiger/mod.rs:172:25
[INFO] [stdout]     |
[INFO] [stdout] 172 |                       let mut out = out.as_mut();
[INFO] [stdout]     |                           ----^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 182 | / tiger_impl!(
[INFO] [stdout] 183 | |     /// Tiger implementation
[INFO] [stdout] 184 | |     ///
[INFO] [stdout] 185 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 186 | |     struct Tiger,  0x01);
[INFO] [stdout]     | |_________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tiger/mod.rs:172:25
[INFO] [stdout]     |
[INFO] [stdout] 172 |                       let mut out = out.as_mut();
[INFO] [stdout]     |                           ----^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 187 | / tiger_impl!(
[INFO] [stdout] 188 | |     /// Tiger2 implementation
[INFO] [stdout] 189 | |     ///
[INFO] [stdout] 190 | |     /// The only difference between original Tiger and Tiger2 is padding value which is `0b00000001`
[INFO] [stdout] ...   |
[INFO] [stdout] 194 | |     /// For more details check [module docs](index.html)
[INFO] [stdout] 195 | |     struct Tiger2, 0x80);
[INFO] [stdout]     | |_________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `num::<impl u32>::wrapping_add` that must be used
[INFO] [stdout]    --> src/blake2.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         self.0.wrapping_add( val as u32 );
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this returns the result of the operation, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `num::<impl u64>::wrapping_add` that must be used
[INFO] [stdout]    --> src/blake2.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         self.0.wrapping_add(val as u64);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this returns the result of the operation, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.26s
[INFO] running `Command { std: "docker" "inspect" "57c292f88b864365e151528063ebec30a2f972c4a42096cb3b717277e042ee3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c292f88b864365e151528063ebec30a2f972c4a42096cb3b717277e042ee3c", kill_on_drop: false }`
[INFO] [stdout] 57c292f88b864365e151528063ebec30a2f972c4a42096cb3b717277e042ee3c
