[INFO] cloning repository https://github.com/Blake-Haydon/ackermann_function
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Blake-Haydon/ackermann_function" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlake-Haydon%2Fackermann_function", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlake-Haydon%2Fackermann_function'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b79c76cc8fc6d5ae7dd419cbbddf13f8f54a8f1
[INFO] testing Blake-Haydon/ackermann_function against master#f9988fefd3add01f414f52b414308e7872622fee for pr-155114
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlake-Haydon%2Fackermann_function" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Blake-Haydon/ackermann_function
[INFO] finished tweaking git repo https://github.com/Blake-Haydon/ackermann_function
[INFO] tweaked toml for git repo https://github.com/Blake-Haydon/ackermann_function written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Blake-Haydon/ackermann_function on toolchain f9988fefd3add01f414f52b414308e7872622fee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Blake-Haydon/ackermann_function already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0220f570553ebbbbd7ea10173308d269b1ce297e769425db00378acaea0c2855
[INFO] running `Command { std: "docker" "start" "-a" "0220f570553ebbbbd7ea10173308d269b1ce297e769425db00378acaea0c2855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0220f570553ebbbbd7ea10173308d269b1ce297e769425db00378acaea0c2855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0220f570553ebbbbd7ea10173308d269b1ce297e769425db00378acaea0c2855", kill_on_drop: false }`
[INFO] [stdout] 0220f570553ebbbbd7ea10173308d269b1ce297e769425db00378acaea0c2855
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c6a6a6337a21f83c73d522fc1ff1ed53b539a8a847737216a1f147029492abf
[INFO] running `Command { std: "docker" "start" "-a" "2c6a6a6337a21f83c73d522fc1ff1ed53b539a8a847737216a1f147029492abf", kill_on_drop: false }`
[INFO] [stderr]    Compiling ackermann_function v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "2c6a6a6337a21f83c73d522fc1ff1ed53b539a8a847737216a1f147029492abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6a6a6337a21f83c73d522fc1ff1ed53b539a8a847737216a1f147029492abf", kill_on_drop: false }`
[INFO] [stdout] 2c6a6a6337a21f83c73d522fc1ff1ed53b539a8a847737216a1f147029492abf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e806bfbe650ec7c33f4e5360f404bd0ca80537ba2c2b52081f4c7a4b11d005b
[INFO] running `Command { std: "docker" "start" "-a" "9e806bfbe650ec7c33f4e5360f404bd0ca80537ba2c2b52081f4c7a4b11d005b", kill_on_drop: false }`
[INFO] [stderr]    Compiling ackermann_function v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "9e806bfbe650ec7c33f4e5360f404bd0ca80537ba2c2b52081f4c7a4b11d005b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e806bfbe650ec7c33f4e5360f404bd0ca80537ba2c2b52081f4c7a4b11d005b", kill_on_drop: false }`
[INFO] [stdout] 9e806bfbe650ec7c33f4e5360f404bd0ca80537ba2c2b52081f4c7a4b11d005b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2a9d202d05b4cce99c465400dab4a242d3103e925c43d876e9404c898b7e382
[INFO] running `Command { std: "docker" "start" "-a" "f2a9d202d05b4cce99c465400dab4a242d3103e925c43d876e9404c898b7e382", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ackermann_function-8d0c400b627d361c)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::m_1 ... ok
[INFO] [stdout] test test::m_2 ... ok
[INFO] [stdout] test test::m_3 ... ok
[INFO] [stdout] test test::m_0 ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'test::m_4' (22) has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow, aborting
[INFO] [stderr] error: test failed, to rerun pass `--bin ackermann_function`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/ackermann_function-8d0c400b627d361c` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "f2a9d202d05b4cce99c465400dab4a242d3103e925c43d876e9404c898b7e382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a9d202d05b4cce99c465400dab4a242d3103e925c43d876e9404c898b7e382", kill_on_drop: false }`
[INFO] [stdout] f2a9d202d05b4cce99c465400dab4a242d3103e925c43d876e9404c898b7e382
