[INFO] updating cached repository https://github.com/exercism/rust-test-runner
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 447bf1495a705d5d263a0f0b79287e899536be60
[INFO] testing exercism/rust-test-runner against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexercism%2Frust-test-runner" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/exercism/rust-test-runner on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/exercism/rust-test-runner
[INFO] finished tweaking git repo https://github.com/exercism/rust-test-runner
[INFO] tweaked toml for git repo https://github.com/exercism/rust-test-runner written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/exercism/rust-test-runner already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 85a1a0aa02b5c594ed7e89b134a41dd3eb2ec8204d7a7da228971de6796e0239
[INFO] running `"docker" "start" "-a" "85a1a0aa02b5c594ed7e89b134a41dd3eb2ec8204d7a7da228971de6796e0239"`
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling transform-output v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.29s
[INFO] running `"docker" "inspect" "85a1a0aa02b5c594ed7e89b134a41dd3eb2ec8204d7a7da228971de6796e0239"`
[INFO] running `"docker" "rm" "-f" "85a1a0aa02b5c594ed7e89b134a41dd3eb2ec8204d7a7da228971de6796e0239"`
[INFO] [stdout] 85a1a0aa02b5c594ed7e89b134a41dd3eb2ec8204d7a7da228971de6796e0239
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 16e38051587bb25a4a8a34a38b330c3efda219179c9b82879f8c8f83a634f25c
[INFO] running `"docker" "start" "-a" "16e38051587bb25a4a8a34a38b330c3efda219179c9b82879f8c8f83a634f25c"`
[INFO] [stderr]    Compiling transform-output v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "16e38051587bb25a4a8a34a38b330c3efda219179c9b82879f8c8f83a634f25c"`
[INFO] running `"docker" "rm" "-f" "16e38051587bb25a4a8a34a38b330c3efda219179c9b82879f8c8f83a634f25c"`
[INFO] [stdout] 16e38051587bb25a4a8a34a38b330c3efda219179c9b82879f8c8f83a634f25c
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 6bf630d95f559c39e64a911a5dcd5a5eccca27e8b823472431df417b60373736
[INFO] running `"docker" "start" "-a" "6bf630d95f559c39e64a911a5dcd5a5eccca27e8b823472431df417b60373736"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/transform_output-7e799dce68ebf200
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::fail ... ignored
[INFO] [stdout] test test::pass ... ok
[INFO] [stdout] test cargo_test::test::test_parse_events ... ok
[INFO] [stdout] test test::test_convert ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/transform_output-eb294b63a9aaa5ff
[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 transform-output
[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" "6bf630d95f559c39e64a911a5dcd5a5eccca27e8b823472431df417b60373736"`
[INFO] running `"docker" "rm" "-f" "6bf630d95f559c39e64a911a5dcd5a5eccca27e8b823472431df417b60373736"`
[INFO] [stdout] 6bf630d95f559c39e64a911a5dcd5a5eccca27e8b823472431df417b60373736