[INFO] crate serial_test 0.2.0 is already in cache
[INFO] extracting crate serial_test 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/serial_test/0.2.0
[INFO] extracting crate serial_test 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serial_test/0.2.0
[INFO] validating manifest of serial_test-0.2.0 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 serial_test-0.2.0 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 serial_test-0.2.0
[INFO] finished frobbing serial_test-0.2.0
[INFO] frobbed toml for serial_test-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/serial_test/0.2.0/Cargo.toml
[INFO] started frobbing serial_test-0.2.0
[INFO] finished frobbing serial_test-0.2.0
[INFO] frobbed toml for serial_test-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serial_test/0.2.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing serial_test-0.2.0 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/serial_test/0.2.0:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] bba9cdf7058083a064cfc3c68b021efc09784531e78db8256b340caad846848f
[INFO] running `"docker" "start" "-a" "bba9cdf7058083a064cfc3c68b021efc09784531e78db8256b340caad846848f"`
[INFO] [stderr]    Compiling serial_test v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "bba9cdf7058083a064cfc3c68b021efc09784531e78db8256b340caad846848f"`
[INFO] running `"docker" "rm" "-f" "bba9cdf7058083a064cfc3c68b021efc09784531e78db8256b340caad846848f"`
[INFO] [stdout] bba9cdf7058083a064cfc3c68b021efc09784531e78db8256b340caad846848f
[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/serial_test/0.2.0:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8c5988010d7f25c424c22b0f6918cd545fcd1ba111345b181483bb84451e91cf
[INFO] running `"docker" "start" "-a" "8c5988010d7f25c424c22b0f6918cd545fcd1ba111345b181483bb84451e91cf"`
[INFO] [stderr]    Compiling serial_test v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "8c5988010d7f25c424c22b0f6918cd545fcd1ba111345b181483bb84451e91cf"`
[INFO] running `"docker" "rm" "-f" "8c5988010d7f25c424c22b0f6918cd545fcd1ba111345b181483bb84451e91cf"`
[INFO] [stdout] 8c5988010d7f25c424c22b0f6918cd545fcd1ba111345b181483bb84451e91cf
[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/serial_test/0.2.0:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] c34bbf0f95eb13a55e2607effb80eddf988eb90517f93ad498a0f86f42cecdf2
[INFO] running `"docker" "start" "-a" "c34bbf0f95eb13a55e2607effb80eddf988eb90517f93ad498a0f86f42cecdf2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serial_test-bfcb1fa88c33becc
[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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tests-47bfbb1876269e70
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_empty_serial_call ... 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 serial_test
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - serial_core (line 15) ... 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" "c34bbf0f95eb13a55e2607effb80eddf988eb90517f93ad498a0f86f42cecdf2"`
[INFO] running `"docker" "rm" "-f" "c34bbf0f95eb13a55e2607effb80eddf988eb90517f93ad498a0f86f42cecdf2"`
[INFO] [stdout] c34bbf0f95eb13a55e2607effb80eddf988eb90517f93ad498a0f86f42cecdf2