[INFO] cloning repository https://github.com/TACappleman/countdown
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TACappleman/countdown" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTACappleman%2Fcountdown", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTACappleman%2Fcountdown'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2d8e693ffb1be442fb966376e5ca922b8276ce4
[INFO] testing TACappleman/countdown against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTACappleman%2Fcountdown" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TACappleman/countdown
[INFO] finished tweaking git repo https://github.com/TACappleman/countdown
[INFO] tweaked toml for git repo https://github.com/TACappleman/countdown written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TACappleman/countdown on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TACappleman/countdown 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.4
[INFO] [stderr]   Downloaded libc v0.2.113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c16866f90879389ff34ce2a35d90243dff162f76d743279ce6a68a21fe5805fc
[INFO] running `Command { std: "docker" "start" "-a" "c16866f90879389ff34ce2a35d90243dff162f76d743279ce6a68a21fe5805fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c16866f90879389ff34ce2a35d90243dff162f76d743279ce6a68a21fe5805fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c16866f90879389ff34ce2a35d90243dff162f76d743279ce6a68a21fe5805fc", kill_on_drop: false }`
[INFO] [stdout] c16866f90879389ff34ce2a35d90243dff162f76d743279ce6a68a21fe5805fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 54e6f4c0e28b8781c9d45c3c770d6318786b038089ec157963df55b12588755f
[INFO] running `Command { std: "docker" "start" "-a" "54e6f4c0e28b8781c9d45c3c770d6318786b038089ec157963df55b12588755f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling countdown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "54e6f4c0e28b8781c9d45c3c770d6318786b038089ec157963df55b12588755f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54e6f4c0e28b8781c9d45c3c770d6318786b038089ec157963df55b12588755f", kill_on_drop: false }`
[INFO] [stdout] 54e6f4c0e28b8781c9d45c3c770d6318786b038089ec157963df55b12588755f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] bf801a0271ec3f2eb8129c274ed8a07c1b248f890405eb70a0469841f7ef2d8a
[INFO] running `Command { std: "docker" "start" "-a" "bf801a0271ec3f2eb8129c274ed8a07c1b248f890405eb70a0469841f7ef2d8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling countdown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "bf801a0271ec3f2eb8129c274ed8a07c1b248f890405eb70a0469841f7ef2d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf801a0271ec3f2eb8129c274ed8a07c1b248f890405eb70a0469841f7ef2d8a", kill_on_drop: false }`
[INFO] [stdout] bf801a0271ec3f2eb8129c274ed8a07c1b248f890405eb70a0469841f7ef2d8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 7fd26175367664427f160ee2b4dda3744f9ec4e4cfd174a5e7481bfd36713c8d
[INFO] running `Command { std: "docker" "start" "-a" "7fd26175367664427f160ee2b4dda3744f9ec4e4cfd174a5e7481bfd36713c8d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/countdown-c49f3a5b5f397271)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test easy_solve ... ok
[INFO] [stdout] test generate_1l_round ... ok
[INFO] [stdout] test generate_0l_round ... ok
[INFO] [stdout] test generate_2l_round ... ok
[INFO] [stdout] test generate_3l_round ... ok
[INFO] [stdout] test generate_4l_round ... ok
[INFO] [stdout] test invalid_divide_coverage ... ok
[INFO] [stdout] test minus_divide_coverage ... ok
[INFO] [stdout] test no_selection ... ok
[INFO] [stdout] test one_num_selection ... ok
[INFO] [stdout] test generate_5l_round - should panic ... ok
[INFO] [stdout] test check_shortest_method ... ok
[INFO] [stdout] test multi_step_solve ... ok
[INFO] [stdout] test no_solve ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.87s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/countdown-05603226df3f082c)
[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" "7fd26175367664427f160ee2b4dda3744f9ec4e4cfd174a5e7481bfd36713c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd26175367664427f160ee2b4dda3744f9ec4e4cfd174a5e7481bfd36713c8d", kill_on_drop: false }`
[INFO] [stdout] 7fd26175367664427f160ee2b4dda3744f9ec4e4cfd174a5e7481bfd36713c8d