[INFO] cloning repository https://github.com/antonmisa/rust_combinators_vs_return
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/antonmisa/rust_combinators_vs_return" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_combinators_vs_return", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_combinators_vs_return'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fb7b6d79f29f6912ee698a06ac2aea407b0edd9
[INFO] testing antonmisa/rust_combinators_vs_return against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_combinators_vs_return" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antonmisa/rust_combinators_vs_return on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/antonmisa/rust_combinators_vs_return
[INFO] finished tweaking git repo https://github.com/antonmisa/rust_combinators_vs_return
[INFO] tweaked toml for git repo https://github.com/antonmisa/rust_combinators_vs_return written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/antonmisa/rust_combinators_vs_return already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48479c8c9593696e96dde58d69435b2fd88a31b383bd5beaca46be0d072c2ee1
[INFO] running `Command { std: "docker" "start" "-a" "48479c8c9593696e96dde58d69435b2fd88a31b383bd5beaca46be0d072c2ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48479c8c9593696e96dde58d69435b2fd88a31b383bd5beaca46be0d072c2ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48479c8c9593696e96dde58d69435b2fd88a31b383bd5beaca46be0d072c2ee1", kill_on_drop: false }`
[INFO] [stdout] 48479c8c9593696e96dde58d69435b2fd88a31b383bd5beaca46be0d072c2ee1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c051d2106a6d5adf96d45c2b9fc3ce9eb3216d26a4a7285c708431d2db433d91
[INFO] running `Command { std: "docker" "start" "-a" "c051d2106a6d5adf96d45c2b9fc3ce9eb3216d26a4a7285c708431d2db433d91", kill_on_drop: false }`
[INFO] [stderr]    Compiling combination v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "c051d2106a6d5adf96d45c2b9fc3ce9eb3216d26a4a7285c708431d2db433d91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c051d2106a6d5adf96d45c2b9fc3ce9eb3216d26a4a7285c708431d2db433d91", kill_on_drop: false }`
[INFO] [stdout] c051d2106a6d5adf96d45c2b9fc3ce9eb3216d26a4a7285c708431d2db433d91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78fd86d338fb5ded3cf9bd2cd39e18421248200dde0b43fbaa94293060a0c395
[INFO] running `Command { std: "docker" "start" "-a" "78fd86d338fb5ded3cf9bd2cd39e18421248200dde0b43fbaa94293060a0c395", kill_on_drop: false }`
[INFO] [stderr]    Compiling combination v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/combination-22096240385fb50d)
[INFO] running `Command { std: "docker" "inspect" "78fd86d338fb5ded3cf9bd2cd39e18421248200dde0b43fbaa94293060a0c395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78fd86d338fb5ded3cf9bd2cd39e18421248200dde0b43fbaa94293060a0c395", kill_on_drop: false }`
[INFO] [stdout] 78fd86d338fb5ded3cf9bd2cd39e18421248200dde0b43fbaa94293060a0c395
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bbe7a0b627c5795b7f688d94ca0cb9e61ec75afa5a124b2afb0ffdd298980378
[INFO] running `Command { std: "docker" "start" "-a" "bbe7a0b627c5795b7f688d94ca0cb9e61ec75afa5a124b2afb0ffdd298980378", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/combination-22096240385fb50d)
[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" "bbe7a0b627c5795b7f688d94ca0cb9e61ec75afa5a124b2afb0ffdd298980378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe7a0b627c5795b7f688d94ca0cb9e61ec75afa5a124b2afb0ffdd298980378", kill_on_drop: false }`
[INFO] [stdout] bbe7a0b627c5795b7f688d94ca0cb9e61ec75afa5a124b2afb0ffdd298980378