[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-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_combinators_vs_return" "/workspace/builds/worker-116/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antonmisa/rust_combinators_vs_return on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-116/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-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8b8f467b403ede59d2cc4443366165393e5b545745ee9a304c686f1611c39e2
[INFO] running `Command { std: "docker" "start" "-a" "d8b8f467b403ede59d2cc4443366165393e5b545745ee9a304c686f1611c39e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8b8f467b403ede59d2cc4443366165393e5b545745ee9a304c686f1611c39e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8b8f467b403ede59d2cc4443366165393e5b545745ee9a304c686f1611c39e2", kill_on_drop: false }`
[INFO] [stdout] d8b8f467b403ede59d2cc4443366165393e5b545745ee9a304c686f1611c39e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4aa7ef74dd3c2b336e1d780e29d837058cf1c2a3d27d7a7c41380d1ca7f527fb
[INFO] running `Command { std: "docker" "start" "-a" "4aa7ef74dd3c2b336e1d780e29d837058cf1c2a3d27d7a7c41380d1ca7f527fb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling combination v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 55s
[INFO] running `Command { std: "docker" "inspect" "4aa7ef74dd3c2b336e1d780e29d837058cf1c2a3d27d7a7c41380d1ca7f527fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa7ef74dd3c2b336e1d780e29d837058cf1c2a3d27d7a7c41380d1ca7f527fb", kill_on_drop: false }`
[INFO] [stdout] 4aa7ef74dd3c2b336e1d780e29d837058cf1c2a3d27d7a7c41380d1ca7f527fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60d98ce2c7a3fe39b89553b28211db6b1728afe471761fe19c6e21381939a326
[INFO] running `Command { std: "docker" "start" "-a" "60d98ce2c7a3fe39b89553b28211db6b1728afe471761fe19c6e21381939a326", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling combination v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "60d98ce2c7a3fe39b89553b28211db6b1728afe471761fe19c6e21381939a326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d98ce2c7a3fe39b89553b28211db6b1728afe471761fe19c6e21381939a326", kill_on_drop: false }`
[INFO] [stdout] 60d98ce2c7a3fe39b89553b28211db6b1728afe471761fe19c6e21381939a326
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] abbd616e681fe4d9b63d12e02f0ccab3e2a6ee036245f5e32ca8034e87a1fe24
[INFO] running `Command { std: "docker" "start" "-a" "abbd616e681fe4d9b63d12e02f0ccab3e2a6ee036245f5e32ca8034e87a1fe24", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] [stderr]      Running unittests (/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" "abbd616e681fe4d9b63d12e02f0ccab3e2a6ee036245f5e32ca8034e87a1fe24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abbd616e681fe4d9b63d12e02f0ccab3e2a6ee036245f5e32ca8034e87a1fe24", kill_on_drop: false }`
[INFO] [stdout] abbd616e681fe4d9b63d12e02f0ccab3e2a6ee036245f5e32ca8034e87a1fe24