[INFO] fetching crate rust_52_projects 0.1.2...
[INFO] testing rust_52_projects-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rust_52_projects 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust_52_projects 0.1.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_52_projects 0.1.2
[INFO] finished tweaking crates.io crate rust_52_projects 0.1.2
[INFO] tweaked toml for crates.io crate rust_52_projects 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43099c8c7ceb05cb316245871664f127dfab49afb2d3132cc0c46ffd31fc4cee
[INFO] running `Command { std: "docker" "start" "-a" "43099c8c7ceb05cb316245871664f127dfab49afb2d3132cc0c46ffd31fc4cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43099c8c7ceb05cb316245871664f127dfab49afb2d3132cc0c46ffd31fc4cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43099c8c7ceb05cb316245871664f127dfab49afb2d3132cc0c46ffd31fc4cee", kill_on_drop: false }`
[INFO] [stdout] 43099c8c7ceb05cb316245871664f127dfab49afb2d3132cc0c46ffd31fc4cee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9877e440d82cbb78b52557074316c74f7d715bdef2743dcb4f61481473c0fdc
[INFO] running `Command { std: "docker" "start" "-a" "b9877e440d82cbb78b52557074316c74f7d715bdef2743dcb4f61481473c0fdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_52_projects v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "b9877e440d82cbb78b52557074316c74f7d715bdef2743dcb4f61481473c0fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9877e440d82cbb78b52557074316c74f7d715bdef2743dcb4f61481473c0fdc", kill_on_drop: false }`
[INFO] [stdout] b9877e440d82cbb78b52557074316c74f7d715bdef2743dcb4f61481473c0fdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba67bb779cc9ce48d4c8631fc336d4265c297abb23f7689b35bafce97aa82d78
[INFO] running `Command { std: "docker" "start" "-a" "ba67bb779cc9ce48d4c8631fc336d4265c297abb23f7689b35bafce97aa82d78", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_52_projects v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "ba67bb779cc9ce48d4c8631fc336d4265c297abb23f7689b35bafce97aa82d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba67bb779cc9ce48d4c8631fc336d4265c297abb23f7689b35bafce97aa82d78", kill_on_drop: false }`
[INFO] [stdout] ba67bb779cc9ce48d4c8631fc336d4265c297abb23f7689b35bafce97aa82d78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 633d8d60d5a65fc187d9175b5364a761781aab1b720ba3fb163d50a3d253a4cb
[INFO] running `Command { std: "docker" "start" "-a" "633d8d60d5a65fc187d9175b5364a761781aab1b720ba3fb163d50a3d253a4cb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_52_projects-fc686c81532982b6)
[INFO] [stdout] test tests::test_factorial ... ok
[INFO] [stderr]    Doc-tests rust_52_projects
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "633d8d60d5a65fc187d9175b5364a761781aab1b720ba3fb163d50a3d253a4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "633d8d60d5a65fc187d9175b5364a761781aab1b720ba3fb163d50a3d253a4cb", kill_on_drop: false }`
[INFO] [stdout] 633d8d60d5a65fc187d9175b5364a761781aab1b720ba3fb163d50a3d253a4cb