[INFO] crate buffering 0.3.4-r1 is already in cache
[INFO] extracting crate buffering 0.3.4-r1 into work/ex/beta-1.38-1/sources/1.37.0/reg/buffering/0.3.4-r1
[INFO] extracting crate buffering 0.3.4-r1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/buffering/0.3.4-r1
[INFO] validating manifest of buffering-0.3.4-r1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of buffering-0.3.4-r1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing buffering-0.3.4-r1
[INFO] finished frobbing buffering-0.3.4-r1
[INFO] frobbed toml for buffering-0.3.4-r1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/buffering/0.3.4-r1/Cargo.toml
[INFO] started frobbing buffering-0.3.4-r1
[INFO] finished frobbing buffering-0.3.4-r1
[INFO] frobbed toml for buffering-0.3.4-r1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/buffering/0.3.4-r1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing buffering-0.3.4-r1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/buffering/0.3.4-r1:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e742161ed03a5d99ae8ead65bd5026a18333de21dbeee8cc1783b15a592fec4d
[INFO] running `"docker" "start" "-a" "e742161ed03a5d99ae8ead65bd5026a18333de21dbeee8cc1783b15a592fec4d"`
[INFO] [stderr]    Compiling buffering v0.3.4-r1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `"docker" "inspect" "e742161ed03a5d99ae8ead65bd5026a18333de21dbeee8cc1783b15a592fec4d"`
[INFO] running `"docker" "rm" "-f" "e742161ed03a5d99ae8ead65bd5026a18333de21dbeee8cc1783b15a592fec4d"`
[INFO] [stdout] e742161ed03a5d99ae8ead65bd5026a18333de21dbeee8cc1783b15a592fec4d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/buffering/0.3.4-r1:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] cadce8ba47d026aedf761602536f10bb3dd2b243a77f4e8f5136107dac7c99f9
[INFO] running `"docker" "start" "-a" "cadce8ba47d026aedf761602536f10bb3dd2b243a77f4e8f5136107dac7c99f9"`
[INFO] [stderr]    Compiling buffering v0.3.4-r1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "cadce8ba47d026aedf761602536f10bb3dd2b243a77f4e8f5136107dac7c99f9"`
[INFO] running `"docker" "rm" "-f" "cadce8ba47d026aedf761602536f10bb3dd2b243a77f4e8f5136107dac7c99f9"`
[INFO] [stdout] cadce8ba47d026aedf761602536f10bb3dd2b243a77f4e8f5136107dac7c99f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/buffering/0.3.4-r1:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 673ece3483f81d7e5c35c2af076d3ea0ec6d1ff1a10b227686fe5b3cfb49d646
[INFO] running `"docker" "start" "-a" "673ece3483f81d7e5c35c2af076d3ea0ec6d1ff1a10b227686fe5b3cfb49d646"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/buffering-83d7673216f5ead2
[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 buffering
[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" "673ece3483f81d7e5c35c2af076d3ea0ec6d1ff1a10b227686fe5b3cfb49d646"`
[INFO] running `"docker" "rm" "-f" "673ece3483f81d7e5c35c2af076d3ea0ec6d1ff1a10b227686fe5b3cfb49d646"`
[INFO] [stdout] 673ece3483f81d7e5c35c2af076d3ea0ec6d1ff1a10b227686fe5b3cfb49d646