[INFO] fetching crate octavo-digest 0.1.2...
[INFO] checking octavo-digest-0.1.2 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate octavo-digest 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate octavo-digest 0.1.2 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding byteorder v0.4.2 (latest: v1.5.0)
[INFO] [stderr]       Adding generic-array v0.2.1 (latest: v1.0.0)
[INFO] [stderr]       Adding static-buffer v0.1.0 (latest: v0.2.0)
[INFO] [stderr]       Adding toml v0.1.30 (latest: v0.8.12)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generic-array v0.2.1
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
[INFO] [stderr]   Downloaded byteorder v0.4.2
[INFO] [stderr]   Downloaded toml v0.1.30
[INFO] [stderr]   Downloaded static-buffer v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c8343af17ca88d5d1df08ea2e58e64ef1adda1a0e30552cf9c7f7ba9a0b08f7
[INFO] running `Command { std: "docker" "start" "-a" "8c8343af17ca88d5d1df08ea2e58e64ef1adda1a0e30552cf9c7f7ba9a0b08f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c8343af17ca88d5d1df08ea2e58e64ef1adda1a0e30552cf9c7f7ba9a0b08f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c8343af17ca88d5d1df08ea2e58e64ef1adda1a0e30552cf9c7f7ba9a0b08f7", kill_on_drop: false }`
[INFO] [stdout] 8c8343af17ca88d5d1df08ea2e58e64ef1adda1a0e30552cf9c7f7ba9a0b08f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b774537a56266a903f8ff9732ca42ef388336a19a0e47f35232e0731dcda816e
[INFO] running `Command { std: "docker" "start" "-a" "b774537a56266a903f8ff9732ca42ef388336a19a0e47f35232e0731dcda816e", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[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]     Checking toml v0.1.30
[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 the macro `blake2` (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 the macro `blake2` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `tiger_impl` (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 the macro `tiger_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::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: this returns the result of the operation, without modifying the original
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let _ = self.0.wrapping_add( val as u32 );
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let _ = self.0.wrapping_add(val as u64);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
[INFO] [stdout]  --> tests/utils/mod.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[derive(RustcDecodable)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout]   = note: `#[deny(soft_unstable)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]  --> tests/utils/mod.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[derive(RustcDecodable)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
[INFO] [stdout]   --> tests/utils/tests.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[derive(RustcDecodable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> tests/utils/tests.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[derive(RustcDecodable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> tests/utils/tests.rs:42:19
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn test(self, &Test);
[INFO] [stdout]    |                   ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Test`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `octavo-digest` (test "lib") due to 5 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 the macro `blake2` (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 the macro `blake2` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `tiger_impl` (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 the macro `tiger_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::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: this returns the result of the operation, without modifying the original
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let _ = self.0.wrapping_add( val as u32 );
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let _ = self.0.wrapping_add(val as u64);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b774537a56266a903f8ff9732ca42ef388336a19a0e47f35232e0731dcda816e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b774537a56266a903f8ff9732ca42ef388336a19a0e47f35232e0731dcda816e", kill_on_drop: false }`
[INFO] [stdout] b774537a56266a903f8ff9732ca42ef388336a19a0e47f35232e0731dcda816e
[INFO] checking octavo-digest-0.1.2 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate octavo-digest 0.1.2 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate octavo-digest 0.1.2 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding byteorder v0.4.2 (latest: v1.5.0)
[INFO] [stderr]       Adding generic-array v0.2.1 (latest: v1.0.0)
[INFO] [stderr]       Adding static-buffer v0.1.0 (latest: v0.2.0)
[INFO] [stderr]       Adding toml v0.1.30 (latest: v0.8.12)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81b5b50d90abf18b9e939c272c8be092b2cd7cee522d8fbbfdfd90344f030493
[INFO] running `Command { std: "docker" "start" "-a" "81b5b50d90abf18b9e939c272c8be092b2cd7cee522d8fbbfdfd90344f030493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81b5b50d90abf18b9e939c272c8be092b2cd7cee522d8fbbfdfd90344f030493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81b5b50d90abf18b9e939c272c8be092b2cd7cee522d8fbbfdfd90344f030493", kill_on_drop: false }`
[INFO] [stdout] 81b5b50d90abf18b9e939c272c8be092b2cd7cee522d8fbbfdfd90344f030493
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83a66af59e40ce733569288e9bca715123040074b17c841c5431c0ffd706c741
[INFO] running `Command { std: "docker" "start" "-a" "83a66af59e40ce733569288e9bca715123040074b17c841c5431c0ffd706c741", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[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 toml v0.1.30
[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 the macro `blake2` (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 the macro `blake2` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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] 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 the macro `blake2` (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 the macro `blake2` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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/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 the macro `sha3_impl` (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 the macro `tiger_impl` (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 the macro `tiger_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::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: this returns the result of the operation, without modifying the original
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let _ = self.0.wrapping_add( val as u32 );
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let _ = self.0.wrapping_add(val as u64);
[INFO] [stdout]     |         +++++++
[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: 19 warnings emitted
[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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `impl_sha` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `sha3_impl` (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 the macro `tiger_impl` (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 the macro `tiger_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
[INFO] [stdout]  --> tests/utils/mod.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[derive(RustcDecodable)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout]   = note: `#[deny(soft_unstable)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]  --> tests/utils/mod.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[derive(RustcDecodable)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
[INFO] [stdout]   --> tests/utils/tests.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[derive(RustcDecodable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> tests/utils/tests.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[derive(RustcDecodable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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] 
[INFO] [stdout] warning: unused return value of `core::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: this returns the result of the operation, without modifying the original
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let _ = self.0.wrapping_add( val as u32 );
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let _ = self.0.wrapping_add(val as u64);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> tests/utils/tests.rs:42:19
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn test(self, &Test);
[INFO] [stdout]    |                   ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Test`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `octavo-digest` (test "lib") due to 5 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "83a66af59e40ce733569288e9bca715123040074b17c841c5431c0ffd706c741", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83a66af59e40ce733569288e9bca715123040074b17c841c5431c0ffd706c741", kill_on_drop: false }`
[INFO] [stdout] 83a66af59e40ce733569288e9bca715123040074b17c841c5431c0ffd706c741
