[INFO] crate async-fs 0.0.0 is already in cache
[INFO] extracting crate async-fs 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/async-fs/0.0.0
[INFO] extracting crate async-fs 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/async-fs/0.0.0
[INFO] validating manifest of async-fs-0.0.0 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 async-fs-0.0.0 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 async-fs-0.0.0
[INFO] finished frobbing async-fs-0.0.0
[INFO] frobbed toml for async-fs-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/async-fs/0.0.0/Cargo.toml
[INFO] started frobbing async-fs-0.0.0
[INFO] finished frobbing async-fs-0.0.0
[INFO] frobbed toml for async-fs-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/async-fs/0.0.0/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] 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 async-fs-0.0.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/async-fs/0.0.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] ff7118f0bf5c0f249d67b81d51438999628ef58b36b37eb80cb959f0f3b3bdcb
[INFO] running `"docker" "start" "-a" "ff7118f0bf5c0f249d67b81d51438999628ef58b36b37eb80cb959f0f3b3bdcb"`
[INFO] [stderr]    Compiling async-fs v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "ff7118f0bf5c0f249d67b81d51438999628ef58b36b37eb80cb959f0f3b3bdcb"`
[INFO] running `"docker" "rm" "-f" "ff7118f0bf5c0f249d67b81d51438999628ef58b36b37eb80cb959f0f3b3bdcb"`
[INFO] [stdout] ff7118f0bf5c0f249d67b81d51438999628ef58b36b37eb80cb959f0f3b3bdcb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/async-fs/0.0.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 38213256cb8a0f1aa0261bc02cbececf565d097a12d121ef09375fc7824bb271
[INFO] running `"docker" "start" "-a" "38213256cb8a0f1aa0261bc02cbececf565d097a12d121ef09375fc7824bb271"`
[INFO] [stderr]    Compiling async-fs v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "38213256cb8a0f1aa0261bc02cbececf565d097a12d121ef09375fc7824bb271"`
[INFO] running `"docker" "rm" "-f" "38213256cb8a0f1aa0261bc02cbececf565d097a12d121ef09375fc7824bb271"`
[INFO] [stdout] 38213256cb8a0f1aa0261bc02cbececf565d097a12d121ef09375fc7824bb271
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/async-fs/0.0.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] da278b792e590e0f4429f4535e627bc27007e1404f15f29ccabd86200ee4f8e2
[INFO] running `"docker" "start" "-a" "da278b792e590e0f4429f4535e627bc27007e1404f15f29ccabd86200ee4f8e2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/async_fs-d7ed234125f2ed64
[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" "da278b792e590e0f4429f4535e627bc27007e1404f15f29ccabd86200ee4f8e2"`
[INFO] running `"docker" "rm" "-f" "da278b792e590e0f4429f4535e627bc27007e1404f15f29ccabd86200ee4f8e2"`
[INFO] [stdout] da278b792e590e0f4429f4535e627bc27007e1404f15f29ccabd86200ee4f8e2