[INFO] crate block-buffer 0.7.3 is already in cache
[INFO] extracting crate block-buffer 0.7.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/block-buffer/0.7.3
[INFO] extracting crate block-buffer 0.7.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/block-buffer/0.7.3
[INFO] validating manifest of block-buffer-0.7.3 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 block-buffer-0.7.3 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 block-buffer-0.7.3
[INFO] finished frobbing block-buffer-0.7.3
[INFO] frobbed toml for block-buffer-0.7.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/block-buffer/0.7.3/Cargo.toml
[INFO] started frobbing block-buffer-0.7.3
[INFO] finished frobbing block-buffer-0.7.3
[INFO] frobbed toml for block-buffer-0.7.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/block-buffer/0.7.3/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 block-buffer-0.7.3 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/block-buffer/0.7.3:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 79ca5073b4c13a90fbf9dc67f6ef73df97576a0cd6dcf22a9794f5a8385fe422
[INFO] running `"docker" "start" "-a" "79ca5073b4c13a90fbf9dc67f6ef73df97576a0cd6dcf22a9794f5a8385fe422"`
[INFO] [stderr]    Compiling block-buffer v0.7.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `core::slice`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use core::slice;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "79ca5073b4c13a90fbf9dc67f6ef73df97576a0cd6dcf22a9794f5a8385fe422"`
[INFO] running `"docker" "rm" "-f" "79ca5073b4c13a90fbf9dc67f6ef73df97576a0cd6dcf22a9794f5a8385fe422"`
[INFO] [stdout] 79ca5073b4c13a90fbf9dc67f6ef73df97576a0cd6dcf22a9794f5a8385fe422
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/block-buffer/0.7.3:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b2dd9261c7b9043c354e3ade6f3da9d3712ccbf6b145fe5e060d0cf5293f0bcf
[INFO] running `"docker" "start" "-a" "b2dd9261c7b9043c354e3ade6f3da9d3712ccbf6b145fe5e060d0cf5293f0bcf"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling block-buffer v0.7.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `core::slice`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use core::slice;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "b2dd9261c7b9043c354e3ade6f3da9d3712ccbf6b145fe5e060d0cf5293f0bcf"`
[INFO] running `"docker" "rm" "-f" "b2dd9261c7b9043c354e3ade6f3da9d3712ccbf6b145fe5e060d0cf5293f0bcf"`
[INFO] [stdout] b2dd9261c7b9043c354e3ade6f3da9d3712ccbf6b145fe5e060d0cf5293f0bcf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/block-buffer/0.7.3:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 95000f9f365e5674d558abb98fdf91cf711ba9414d1115a6507ad6e9c8b8b4b3
[INFO] running `"docker" "start" "-a" "95000f9f365e5674d558abb98fdf91cf711ba9414d1115a6507ad6e9c8b8b4b3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/block_buffer-bb5aeec2029dcd39
[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 block-buffer
[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" "95000f9f365e5674d558abb98fdf91cf711ba9414d1115a6507ad6e9c8b8b4b3"`
[INFO] running `"docker" "rm" "-f" "95000f9f365e5674d558abb98fdf91cf711ba9414d1115a6507ad6e9c8b8b4b3"`
[INFO] [stdout] 95000f9f365e5674d558abb98fdf91cf711ba9414d1115a6507ad6e9c8b8b4b3