[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 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-6/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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 9a2dbf50ae55b4de9b2978816ef185bd3a39b97af783d1bb0cc2b0e00e4e3f5b
[INFO] running `"docker" "start" "-a" "9a2dbf50ae55b4de9b2978816ef185bd3a39b97af783d1bb0cc2b0e00e4e3f5b"`
[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" "9a2dbf50ae55b4de9b2978816ef185bd3a39b97af783d1bb0cc2b0e00e4e3f5b"`
[INFO] running `"docker" "rm" "-f" "9a2dbf50ae55b4de9b2978816ef185bd3a39b97af783d1bb0cc2b0e00e4e3f5b"`
[INFO] [stdout] 9a2dbf50ae55b4de9b2978816ef185bd3a39b97af783d1bb0cc2b0e00e4e3f5b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] df7d3b43ce5e6a80b80334655a1c68d2294cb22e59ba487674fdad61fbeffd77
[INFO] running `"docker" "start" "-a" "df7d3b43ce5e6a80b80334655a1c68d2294cb22e59ba487674fdad61fbeffd77"`
[INFO] [stderr]    Compiling io-test-util v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "df7d3b43ce5e6a80b80334655a1c68d2294cb22e59ba487674fdad61fbeffd77"`
[INFO] running `"docker" "rm" "-f" "df7d3b43ce5e6a80b80334655a1c68d2294cb22e59ba487674fdad61fbeffd77"`
[INFO] [stdout] df7d3b43ce5e6a80b80334655a1c68d2294cb22e59ba487674fdad61fbeffd77
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1dfd3ae8e339e31f1cd4d7829c46ffd18f604265bba1d5c73b104e9b8c701176
[INFO] running `"docker" "start" "-a" "1dfd3ae8e339e31f1cd4d7829c46ffd18f604265bba1d5c73b104e9b8c701176"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/io_test_util-f025252e472061d9
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test error_reader::test::should_throw_correct_error ... ok
[INFO] [stderr]    Doc-tests io-test-util
[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 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" "1dfd3ae8e339e31f1cd4d7829c46ffd18f604265bba1d5c73b104e9b8c701176"`
[INFO] running `"docker" "rm" "-f" "1dfd3ae8e339e31f1cd4d7829c46ffd18f604265bba1d5c73b104e9b8c701176"`
[INFO] [stdout] 1dfd3ae8e339e31f1cd4d7829c46ffd18f604265bba1d5c73b104e9b8c701176