[INFO] crate octavo-kdf 0.1.1 is already in cache
[INFO] extracting crate octavo-kdf 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/octavo-kdf/0.1.1
[INFO] extracting crate octavo-kdf 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/octavo-kdf/0.1.1
[INFO] validating manifest of octavo-kdf-0.1.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of octavo-kdf-0.1.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing octavo-kdf-0.1.1
[INFO] removed path dependency octavo-crypto from octavo-kdf-0.1.1
[INFO] finished frobbing octavo-kdf-0.1.1
[INFO] frobbed toml for octavo-kdf-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/octavo-kdf/0.1.1/Cargo.toml
[INFO] started frobbing octavo-kdf-0.1.1
[INFO] removed path dependency octavo-crypto from octavo-kdf-0.1.1
[INFO] finished frobbing octavo-kdf-0.1.1
[INFO] frobbed toml for octavo-kdf-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/octavo-kdf/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing octavo-kdf-0.1.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/octavo-kdf/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 83b23994f57cd42ee7a397a33bdc3f4455e80e3a546078f4a547e7db7573f166
[INFO] running `"docker" "start" "-a" "83b23994f57cd42ee7a397a33bdc3f4455e80e3a546078f4a547e7db7573f166"`
[INFO] [stderr]    Compiling octavo-crypto v0.1.1
[INFO] [stderr]    Compiling octavo-kdf v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bcrypt.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut output = output.as_mut();
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "83b23994f57cd42ee7a397a33bdc3f4455e80e3a546078f4a547e7db7573f166"`
[INFO] running `"docker" "rm" "-f" "83b23994f57cd42ee7a397a33bdc3f4455e80e3a546078f4a547e7db7573f166"`
[INFO] [stdout] 83b23994f57cd42ee7a397a33bdc3f4455e80e3a546078f4a547e7db7573f166
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/octavo-kdf/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 502ce2af41ea978f98020bf8d23ebbfe0d4aad5e355df99426d2b17bb23e8e06
[INFO] running `"docker" "start" "-a" "502ce2af41ea978f98020bf8d23ebbfe0d4aad5e355df99426d2b17bb23e8e06"`
[INFO] [stderr]    Compiling octavo-kdf v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bcrypt.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut output = output.as_mut();
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "502ce2af41ea978f98020bf8d23ebbfe0d4aad5e355df99426d2b17bb23e8e06"`
[INFO] running `"docker" "rm" "-f" "502ce2af41ea978f98020bf8d23ebbfe0d4aad5e355df99426d2b17bb23e8e06"`
[INFO] [stdout] 502ce2af41ea978f98020bf8d23ebbfe0d4aad5e355df99426d2b17bb23e8e06
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/octavo-kdf/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] e2b215fcfe81ce4e148c486ee52e208b768bc168b206e4f76cec5c21201b8a4c
[INFO] running `"docker" "start" "-a" "e2b215fcfe81ce4e148c486ee52e208b768bc168b206e4f76cec5c21201b8a4c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/octavo_kdf-17fa5b30650caa19
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests octavo-kdf
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e2b215fcfe81ce4e148c486ee52e208b768bc168b206e4f76cec5c21201b8a4c"`
[INFO] running `"docker" "rm" "-f" "e2b215fcfe81ce4e148c486ee52e208b768bc168b206e4f76cec5c21201b8a4c"`
[INFO] [stdout] e2b215fcfe81ce4e148c486ee52e208b768bc168b206e4f76cec5c21201b8a4c