[INFO] crate octavo-digest 0.1.2 is already in cache
[INFO] checking octavo-digest-0.1.2 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate octavo-digest 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate octavo-digest 0.1.2 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed43e1bcc55ec0b19112a78750f45a8c57572771fcb2237d232f82a584fc4377
[INFO] running `"docker" "start" "-a" "ed43e1bcc55ec0b19112a78750f45a8c57572771fcb2237d232f82a584fc4377"`
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking generic-array v0.2.1
[INFO] [stderr]     Checking static-buffer v0.1.0
[INFO] [stderr]     Checking octavo-digest v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blake2.rs:209:21
[INFO] [stderr]     |
[INFO] [stderr] 209 |                 let mut out = out.as_mut();
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 222 | blake2!(Blake2s<u32>, BLAKE2S_INIT, FixedBuffer64, U64);
[INFO] [stderr]     | -------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blake2.rs:209:21
[INFO] [stderr]     |
[INFO] [stderr] 209 |                 let mut out = out.as_mut();
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 223 | blake2!(Blake2b<u64>, BLAKE2B_INIT, FixedBuffer128, U128);
[INFO] [stderr]     | ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/md5.rs:218:13
[INFO] [stderr]     |
[INFO] [stderr] 218 |         let mut out = out.as_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blake2.rs:209:21
[INFO] [stderr]     |
[INFO] [stderr] 209 |                 let mut out = out.as_mut();
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 222 | blake2!(Blake2s<u32>, BLAKE2S_INIT, FixedBuffer64, U64);
[INFO] [stderr]     | -------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blake2.rs:209:21
[INFO] [stderr]     |
[INFO] [stderr] 209 |                 let mut out = out.as_mut();
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 223 | blake2!(Blake2b<u64>, BLAKE2B_INIT, FixedBuffer128, U128);
[INFO] [stderr]     | ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/md5.rs:218:13
[INFO] [stderr]     |
[INFO] [stderr] 218 |         let mut out = out.as_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ripemd.rs:187:13
[INFO] [stderr]     |
[INFO] [stderr] 187 |         let mut out = out.as_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha1.rs:239:13
[INFO] [stderr]     |
[INFO] [stderr] 239 |         let mut out = out.as_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ripemd.rs:187:13
[INFO] [stderr]     |
[INFO] [stderr] 187 |         let mut out = out.as_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha1.rs:239:13
[INFO] [stderr]     |
[INFO] [stderr] 239 |         let mut out = out.as_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 423 | / impl_sha!(
[INFO] [stderr] 424 | |     /// SHA-224 implementation
[INFO] [stderr] 425 | |     ///
[INFO] [stderr] 426 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 427 | |     low  Sha224, SHA224_INIT, U224);
[INFO] [stderr]     | |____________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 423 | / impl_sha!(
[INFO] [stderr] 424 | |     /// SHA-224 implementation
[INFO] [stderr] 425 | |     ///
[INFO] [stderr] 426 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 427 | |     low  Sha224, SHA224_INIT, U224);
[INFO] [stderr]     | |____________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 428 | / impl_sha!(
[INFO] [stderr] 429 | |     /// SHA-256 implementation
[INFO] [stderr] 430 | |     ///
[INFO] [stderr] 431 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 432 | |     low  Sha256, SHA256_INIT, U256);
[INFO] [stderr]     | |____________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 428 | / impl_sha!(
[INFO] [stderr] 429 | |     /// SHA-256 implementation
[INFO] [stderr] 430 | |     ///
[INFO] [stderr] 431 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 432 | |     low  Sha256, SHA256_INIT, U256);
[INFO] [stderr]     | |____________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 433 | / impl_sha!(
[INFO] [stderr] 434 | |     /// SHA-384 implementation
[INFO] [stderr] 435 | |     ///
[INFO] [stderr] 436 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 437 | |     high Sha384, SHA384_INIT, U384);
[INFO] [stderr]     | |____________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 438 | / impl_sha!(
[INFO] [stderr] 439 | |     /// SHA-512 implementation
[INFO] [stderr] 440 | |     ///
[INFO] [stderr] 441 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 442 | |     high Sha512, SHA512_INIT, U512);
[INFO] [stderr]     | |____________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 433 | / impl_sha!(
[INFO] [stderr] 434 | |     /// SHA-384 implementation
[INFO] [stderr] 435 | |     ///
[INFO] [stderr] 436 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 437 | |     high Sha384, SHA384_INIT, U384);
[INFO] [stderr]     | |____________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 438 | / impl_sha!(
[INFO] [stderr] 439 | |     /// SHA-512 implementation
[INFO] [stderr] 440 | |     ///
[INFO] [stderr] 441 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 442 | |     high Sha512, SHA512_INIT, U512);
[INFO] [stderr]     | |____________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 444 | / impl_sha!(
[INFO] [stderr] 445 | |     /// SHA-512/224 implementation
[INFO] [stderr] 446 | |     ///
[INFO] [stderr] 447 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 448 | |     high Sha512224, SHA512_224_INIT, U224);
[INFO] [stderr]     | |___________________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 444 | / impl_sha!(
[INFO] [stderr] 445 | |     /// SHA-512/224 implementation
[INFO] [stderr] 446 | |     ///
[INFO] [stderr] 447 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 448 | |     high Sha512224, SHA512_224_INIT, U224);
[INFO] [stderr]     | |___________________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 449 | / impl_sha!(
[INFO] [stderr] 450 | |     /// SHA-512/256 implementation
[INFO] [stderr] 451 | |     ///
[INFO] [stderr] 452 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 453 | |     high Sha512256, SHA512_256_INIT, U256);
[INFO] [stderr]     | |___________________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha2.rs:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |                   let mut out = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 449 | / impl_sha!(
[INFO] [stderr] 450 | |     /// SHA-512/256 implementation
[INFO] [stderr] 451 | |     ///
[INFO] [stderr] 452 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 453 | |     high Sha512256, SHA512_256_INIT, U256);
[INFO] [stderr]     | |___________________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha3.rs:221:21
[INFO] [stderr]     |
[INFO] [stderr] 221 |                   let mut ret = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 242 | / sha3_impl!(
[INFO] [stderr] 243 | |     /// SHA3-224 implementation
[INFO] [stderr] 244 | |     ///
[INFO] [stderr] 245 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 246 | |     struct Sha224 -> U224, U144);
[INFO] [stderr]     | |_________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha3.rs:221:21
[INFO] [stderr]     |
[INFO] [stderr] 221 |                   let mut ret = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 247 | / sha3_impl!(
[INFO] [stderr] 248 | |     /// SHA3-256 implementation
[INFO] [stderr] 249 | |     ///
[INFO] [stderr] 250 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 251 | |     struct Sha256 -> U256, U136);
[INFO] [stderr]     | |_________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha3.rs:221:21
[INFO] [stderr]     |
[INFO] [stderr] 221 |                   let mut ret = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 252 | / sha3_impl!(
[INFO] [stderr] 253 | |     /// SHA3-384 implementation
[INFO] [stderr] 254 | |     ///
[INFO] [stderr] 255 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 256 | |     struct Sha384 -> U384, U104);
[INFO] [stderr]     | |_________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha3.rs:221:21
[INFO] [stderr]     |
[INFO] [stderr] 221 |                   let mut ret = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 257 | / sha3_impl!(
[INFO] [stderr] 258 | |     /// SHA3-512 implementation
[INFO] [stderr] 259 | |     ///
[INFO] [stderr] 260 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 261 | |     struct Sha512 -> U512, U72);
[INFO] [stderr]     | |________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha3.rs:221:21
[INFO] [stderr]     |
[INFO] [stderr] 221 |                   let mut ret = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 242 | / sha3_impl!(
[INFO] [stderr] 243 | |     /// SHA3-224 implementation
[INFO] [stderr] 244 | |     ///
[INFO] [stderr] 245 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 246 | |     struct Sha224 -> U224, U144);
[INFO] [stderr]     | |_________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha3.rs:221:21
[INFO] [stderr]     |
[INFO] [stderr] 221 |                   let mut ret = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 247 | / sha3_impl!(
[INFO] [stderr] 248 | |     /// SHA3-256 implementation
[INFO] [stderr] 249 | |     ///
[INFO] [stderr] 250 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 251 | |     struct Sha256 -> U256, U136);
[INFO] [stderr]     | |_________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tiger/mod.rs:172:25
[INFO] [stderr]     |
[INFO] [stderr] 172 |                       let mut out = out.as_mut();
[INFO] [stderr]     |                           ----^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 182 | / tiger_impl!(
[INFO] [stderr] 183 | |     /// Tiger implementation
[INFO] [stderr] 184 | |     ///
[INFO] [stderr] 185 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 186 | |     struct Tiger,  0x01);
[INFO] [stderr]     | |_________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tiger/mod.rs:172:25
[INFO] [stderr]     |
[INFO] [stderr] 172 |                       let mut out = out.as_mut();
[INFO] [stderr]     |                           ----^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 187 | / tiger_impl!(
[INFO] [stderr] 188 | |     /// Tiger2 implementation
[INFO] [stderr] 189 | |     ///
[INFO] [stderr] 190 | |     /// The only difference between original Tiger and Tiger2 is padding value which is `0b00000001`
[INFO] [stderr] ...   |
[INFO] [stderr] 194 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 195 | |     struct Tiger2, 0x80);
[INFO] [stderr]     | |_________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha3.rs:221:21
[INFO] [stderr]     |
[INFO] [stderr] 221 |                   let mut ret = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 252 | / sha3_impl!(
[INFO] [stderr] 253 | |     /// SHA3-384 implementation
[INFO] [stderr] 254 | |     ///
[INFO] [stderr] 255 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 256 | |     struct Sha384 -> U384, U104);
[INFO] [stderr]     | |_________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sha3.rs:221:21
[INFO] [stderr]     |
[INFO] [stderr] 221 |                   let mut ret = out.as_mut();
[INFO] [stderr]     |                       ----^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 257 | / sha3_impl!(
[INFO] [stderr] 258 | |     /// SHA3-512 implementation
[INFO] [stderr] 259 | |     ///
[INFO] [stderr] 260 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 261 | |     struct Sha512 -> U512, U72);
[INFO] [stderr]     | |________________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u32>::wrapping_add` that must be used
[INFO] [stderr]    --> src/blake2.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         self.0.wrapping_add( val as u32 );
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tiger/mod.rs:172:25
[INFO] [stderr]     |
[INFO] [stderr] 172 |                       let mut out = out.as_mut();
[INFO] [stderr]     |                           ----^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 182 | / tiger_impl!(
[INFO] [stderr] 183 | |     /// Tiger implementation
[INFO] [stderr] 184 | |     ///
[INFO] [stderr] 185 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 186 | |     struct Tiger,  0x01);
[INFO] [stderr]     | |_________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u64>::wrapping_add` that must be used
[INFO] [stderr]    --> src/blake2.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         self.0.wrapping_add(val as u64);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tiger/mod.rs:172:25
[INFO] [stderr]     |
[INFO] [stderr] 172 |                       let mut out = out.as_mut();
[INFO] [stderr]     |                           ----^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 187 | / tiger_impl!(
[INFO] [stderr] 188 | |     /// Tiger2 implementation
[INFO] [stderr] 189 | |     ///
[INFO] [stderr] 190 | |     /// The only difference between original Tiger and Tiger2 is padding value which is `0b00000001`
[INFO] [stderr] ...   |
[INFO] [stderr] 194 | |     /// For more details check [module docs](index.html)
[INFO] [stderr] 195 | |     struct Tiger2, 0x80);
[INFO] [stderr]     | |_________________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u32>::wrapping_add` that must be used
[INFO] [stderr]    --> src/blake2.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         self.0.wrapping_add( val as u32 );
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u64>::wrapping_add` that must be used
[INFO] [stderr]    --> src/blake2.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         self.0.wrapping_add(val as u64);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> tests/utils/tests.rs:19:20
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let data = try!(d.read_str());
[INFO] [stderr]    |                    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.35s
[INFO] running `"docker" "inspect" "ed43e1bcc55ec0b19112a78750f45a8c57572771fcb2237d232f82a584fc4377"`
[INFO] running `"docker" "rm" "-f" "ed43e1bcc55ec0b19112a78750f45a8c57572771fcb2237d232f82a584fc4377"`
[INFO] [stdout] ed43e1bcc55ec0b19112a78750f45a8c57572771fcb2237d232f82a584fc4377
