[INFO] crate buffer 0.1.8 is already in cache
[INFO] extracting crate buffer 0.1.8 into work/ex/beta-1.37-6/sources/1.36.0/reg/buffer/0.1.8
[INFO] extracting crate buffer 0.1.8 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buffer/0.1.8
[INFO] validating manifest of buffer-0.1.8 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 buffer-0.1.8 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 buffer-0.1.8
[INFO] finished frobbing buffer-0.1.8
[INFO] frobbed toml for buffer-0.1.8 written to work/ex/beta-1.37-6/sources/1.36.0/reg/buffer/0.1.8/Cargo.toml
[INFO] started frobbing buffer-0.1.8
[INFO] finished frobbing buffer-0.1.8
[INFO] frobbed toml for buffer-0.1.8 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buffer/0.1.8/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] testing buffer-0.1.8 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-2/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/buffer/0.1.8:/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] a845eb2cfe649d4d2169bc4cfc411ffb697aaaad1c87e7df20fc62359216b1c8
[INFO] running `"docker" "start" "-a" "a845eb2cfe649d4d2169bc4cfc411ffb697aaaad1c87e7df20fc62359216b1c8"`
[INFO] [stderr]    Compiling buffer v0.1.8 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "a845eb2cfe649d4d2169bc4cfc411ffb697aaaad1c87e7df20fc62359216b1c8"`
[INFO] running `"docker" "rm" "-f" "a845eb2cfe649d4d2169bc4cfc411ffb697aaaad1c87e7df20fc62359216b1c8"`
[INFO] [stdout] a845eb2cfe649d4d2169bc4cfc411ffb697aaaad1c87e7df20fc62359216b1c8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/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/buffer/0.1.8:/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] 07317978de921a9e56f0c249d603f929ff48f73f4f3a9ee845802ad276a13db9
[INFO] running `"docker" "start" "-a" "07317978de921a9e56f0c249d603f929ff48f73f4f3a9ee845802ad276a13db9"`
[INFO] [stderr]    Compiling buffer v0.1.8 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "07317978de921a9e56f0c249d603f929ff48f73f4f3a9ee845802ad276a13db9"`
[INFO] running `"docker" "rm" "-f" "07317978de921a9e56f0c249d603f929ff48f73f4f3a9ee845802ad276a13db9"`
[INFO] [stdout] 07317978de921a9e56f0c249d603f929ff48f73f4f3a9ee845802ad276a13db9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/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/buffer/0.1.8:/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] 9455ff3a801c0f3cf31c4223e19ebd072f3909b66f10afd8767c055bd6cfe091
[INFO] running `"docker" "start" "-a" "9455ff3a801c0f3cf31c4223e19ebd072f3909b66f10afd8767c055bd6cfe091"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/buffer-2f1762c261697ede
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests buffer
[INFO] [stdout] test impls::buffer_ref::test::buffer_ref_remaining ... ok
[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" "9455ff3a801c0f3cf31c4223e19ebd072f3909b66f10afd8767c055bd6cfe091"`
[INFO] running `"docker" "rm" "-f" "9455ff3a801c0f3cf31c4223e19ebd072f3909b66f10afd8767c055bd6cfe091"`
[INFO] [stdout] 9455ff3a801c0f3cf31c4223e19ebd072f3909b66f10afd8767c055bd6cfe091