[INFO] crate io-test-util 0.1.0 is already in cache
[INFO] extracting crate io-test-util 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/io-test-util/0.1.0
[INFO] extracting crate io-test-util 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/io-test-util/0.1.0
[INFO] validating manifest of io-test-util-0.1.0 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 io-test-util-0.1.0 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 io-test-util-0.1.0
[INFO] finished frobbing io-test-util-0.1.0
[INFO] frobbed toml for io-test-util-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/io-test-util/0.1.0/Cargo.toml
[INFO] started frobbing io-test-util-0.1.0
[INFO] finished frobbing io-test-util-0.1.0
[INFO] frobbed toml for io-test-util-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/io-test-util/0.1.0/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 io-test-util-0.1.0 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/io-test-util/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e6320bc674f596137979f336de24fe3878a6b26e26b2957bf237d41bb5b27f7c
[INFO] running `"docker" "start" "-a" "e6320bc674f596137979f336de24fe3878a6b26e26b2957bf237d41bb5b27f7c"`
[INFO] [stderr]    Compiling io-test-util v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `"docker" "inspect" "e6320bc674f596137979f336de24fe3878a6b26e26b2957bf237d41bb5b27f7c"`
[INFO] running `"docker" "rm" "-f" "e6320bc674f596137979f336de24fe3878a6b26e26b2957bf237d41bb5b27f7c"`
[INFO] [stdout] e6320bc674f596137979f336de24fe3878a6b26e26b2957bf237d41bb5b27f7c
[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/io-test-util/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1669e9f553e81e729c1b8a311c792587851c1b20211d8c7587812318553e825b
[INFO] running `"docker" "start" "-a" "1669e9f553e81e729c1b8a311c792587851c1b20211d8c7587812318553e825b"`
[INFO] [stderr]    Compiling io-test-util v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "1669e9f553e81e729c1b8a311c792587851c1b20211d8c7587812318553e825b"`
[INFO] running `"docker" "rm" "-f" "1669e9f553e81e729c1b8a311c792587851c1b20211d8c7587812318553e825b"`
[INFO] [stdout] 1669e9f553e81e729c1b8a311c792587851c1b20211d8c7587812318553e825b
[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/io-test-util/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a5ae31806e39a6245d08114c51003dfe5c5a3e8bc08401edef10f8331c293a1a
[INFO] running `"docker" "start" "-a" "a5ae31806e39a6245d08114c51003dfe5c5a3e8bc08401edef10f8331c293a1a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/io_test_util-b416e75533e3e1f8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test error_reader::test::should_throw_correct_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests io-test-util
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a5ae31806e39a6245d08114c51003dfe5c5a3e8bc08401edef10f8331c293a1a"`
[INFO] running `"docker" "rm" "-f" "a5ae31806e39a6245d08114c51003dfe5c5a3e8bc08401edef10f8331c293a1a"`
[INFO] [stdout] a5ae31806e39a6245d08114c51003dfe5c5a3e8bc08401edef10f8331c293a1a