[INFO] fetching crate async-buffer 0.1.0...
[INFO] extracting crate async-buffer 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/async-buffer/0.1.0
[INFO] extracting crate async-buffer 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/async-buffer/0.1.0
[INFO] validating manifest of async-buffer-0.1.0 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 async-buffer-0.1.0 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 async-buffer-0.1.0
[INFO] finished frobbing async-buffer-0.1.0
[INFO] frobbed toml for async-buffer-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/async-buffer/0.1.0/Cargo.toml
[INFO] started frobbing async-buffer-0.1.0
[INFO] finished frobbing async-buffer-0.1.0
[INFO] frobbed toml for async-buffer-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/async-buffer/0.1.0/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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing async-buffer-0.1.0 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/async-buffer/0.1.0:/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] 82648d821a3410d9c07cafc91547e446caa91af6eae6ab4d5b65433b56e4d069
[INFO] running `"docker" "start" "-a" "82648d821a3410d9c07cafc91547e446caa91af6eae6ab4d5b65433b56e4d069"`
[INFO] [stderr]    Compiling async-buffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `"docker" "inspect" "82648d821a3410d9c07cafc91547e446caa91af6eae6ab4d5b65433b56e4d069"`
[INFO] running `"docker" "rm" "-f" "82648d821a3410d9c07cafc91547e446caa91af6eae6ab4d5b65433b56e4d069"`
[INFO] [stdout] 82648d821a3410d9c07cafc91547e446caa91af6eae6ab4d5b65433b56e4d069
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/async-buffer/0.1.0:/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] 9c440ba8f0c4c7d9755d6cc3be1de87c15841cdda1245a7aa32a97590f20d6e4
[INFO] running `"docker" "start" "-a" "9c440ba8f0c4c7d9755d6cc3be1de87c15841cdda1245a7aa32a97590f20d6e4"`
[INFO] [stderr]    Compiling async-buffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "9c440ba8f0c4c7d9755d6cc3be1de87c15841cdda1245a7aa32a97590f20d6e4"`
[INFO] running `"docker" "rm" "-f" "9c440ba8f0c4c7d9755d6cc3be1de87c15841cdda1245a7aa32a97590f20d6e4"`
[INFO] [stdout] 9c440ba8f0c4c7d9755d6cc3be1de87c15841cdda1245a7aa32a97590f20d6e4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/async-buffer/0.1.0:/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] 755ee539bb3db337d5e02da2c32f4779e8f2e5506dbb4299bae1135109baddd5
[INFO] running `"docker" "start" "-a" "755ee539bb3db337d5e02da2c32f4779e8f2e5506dbb4299bae1135109baddd5"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/crater/target/debug/deps/async_buffer-2773aacd2de2acb5
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests async-buffer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "755ee539bb3db337d5e02da2c32f4779e8f2e5506dbb4299bae1135109baddd5"`
[INFO] running `"docker" "rm" "-f" "755ee539bb3db337d5e02da2c32f4779e8f2e5506dbb4299bae1135109baddd5"`
[INFO] [stdout] 755ee539bb3db337d5e02da2c32f4779e8f2e5506dbb4299bae1135109baddd5