[INFO] cloning repository https://github.com/DownsizeEngineering/tRust_problems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DownsizeEngineering/tRust_problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDownsizeEngineering%2FtRust_problems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDownsizeEngineering%2FtRust_problems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cac01acbb9e8d0310f635bc16111fee6d4bbcbc
[INFO] testing DownsizeEngineering/tRust_problems against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDownsizeEngineering%2FtRust_problems" "/workspace/builds/worker-89/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-89/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DownsizeEngineering/tRust_problems on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DownsizeEngineering/tRust_problems
[INFO] finished tweaking git repo https://github.com/DownsizeEngineering/tRust_problems
[INFO] tweaked toml for git repo https://github.com/DownsizeEngineering/tRust_problems written to /workspace/builds/worker-89/source/Cargo.toml
[INFO] crate git repo https://github.com/DownsizeEngineering/tRust_problems already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d2573f4e7ddfb35bbf37f677d2584d6c9ae76db4903083c3152ffdf168e5967
[INFO] running `Command { std: "docker" "start" "-a" "6d2573f4e7ddfb35bbf37f677d2584d6c9ae76db4903083c3152ffdf168e5967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d2573f4e7ddfb35bbf37f677d2584d6c9ae76db4903083c3152ffdf168e5967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d2573f4e7ddfb35bbf37f677d2584d6c9ae76db4903083c3152ffdf168e5967", kill_on_drop: false }`
[INFO] [stdout] 6d2573f4e7ddfb35bbf37f677d2584d6c9ae76db4903083c3152ffdf168e5967
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 287f62fc932cb7f4fdf2ee2b7c6f38c54b58bfb97de58c02137d9aa5bd13f847
[INFO] running `Command { std: "docker" "start" "-a" "287f62fc932cb7f4fdf2ee2b7c6f38c54b58bfb97de58c02137d9aa5bd13f847", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling t_rust_problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.43s
[INFO] running `Command { std: "docker" "inspect" "287f62fc932cb7f4fdf2ee2b7c6f38c54b58bfb97de58c02137d9aa5bd13f847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "287f62fc932cb7f4fdf2ee2b7c6f38c54b58bfb97de58c02137d9aa5bd13f847", kill_on_drop: false }`
[INFO] [stdout] 287f62fc932cb7f4fdf2ee2b7c6f38c54b58bfb97de58c02137d9aa5bd13f847
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2cfe19bc9dccc473942db60c83bfb8ed9e8bb20e46a4b0affa23e137d8b12dc
[INFO] running `Command { std: "docker" "start" "-a" "e2cfe19bc9dccc473942db60c83bfb8ed9e8bb20e46a4b0affa23e137d8b12dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling t_rust_problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "e2cfe19bc9dccc473942db60c83bfb8ed9e8bb20e46a4b0affa23e137d8b12dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2cfe19bc9dccc473942db60c83bfb8ed9e8bb20e46a4b0affa23e137d8b12dc", kill_on_drop: false }`
[INFO] [stdout] e2cfe19bc9dccc473942db60c83bfb8ed9e8bb20e46a4b0affa23e137d8b12dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9dd88a52e73eb3261a3eeac9221a0d81b24f222497a5cdc7665efdb0f490689d
[INFO] running `Command { std: "docker" "start" "-a" "9dd88a52e73eb3261a3eeac9221a0d81b24f222497a5cdc7665efdb0f490689d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/t_rust_problems-c13b8fcab6d0aaae)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9dd88a52e73eb3261a3eeac9221a0d81b24f222497a5cdc7665efdb0f490689d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dd88a52e73eb3261a3eeac9221a0d81b24f222497a5cdc7665efdb0f490689d", kill_on_drop: false }`
[INFO] [stdout] 9dd88a52e73eb3261a3eeac9221a0d81b24f222497a5cdc7665efdb0f490689d