[INFO] cloning repository https://github.com/mmastrac/rust-libc-print
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmastrac/rust-libc-print" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmastrac%2Frust-libc-print", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmastrac%2Frust-libc-print'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4318f664267979892aefda5136600c1dd823225f
[INFO] testing mmastrac/rust-libc-print against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmastrac%2Frust-libc-print" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmastrac/rust-libc-print on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmastrac/rust-libc-print
[INFO] finished tweaking git repo https://github.com/mmastrac/rust-libc-print
[INFO] tweaked toml for git repo https://github.com/mmastrac/rust-libc-print written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mmastrac/rust-libc-print already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e4760ade487399484da7b803569d0e5e8e006f18db4835fcb3bfb1108701ff2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3e4760ade487399484da7b803569d0e5e8e006f18db4835fcb3bfb1108701ff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e4760ade487399484da7b803569d0e5e8e006f18db4835fcb3bfb1108701ff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4760ade487399484da7b803569d0e5e8e006f18db4835fcb3bfb1108701ff2", kill_on_drop: false }`
[INFO] [stdout] 3e4760ade487399484da7b803569d0e5e8e006f18db4835fcb3bfb1108701ff2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb65bd5534fff90e0389f26d4feee0d6cd666a4dd3e4d994de20ef876921ffd8
[INFO] running `Command { std: "docker" "start" "-a" "cb65bd5534fff90e0389f26d4feee0d6cd666a4dd3e4d994de20ef876921ffd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc-print v0.1.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "cb65bd5534fff90e0389f26d4feee0d6cd666a4dd3e4d994de20ef876921ffd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb65bd5534fff90e0389f26d4feee0d6cd666a4dd3e4d994de20ef876921ffd8", kill_on_drop: false }`
[INFO] [stdout] cb65bd5534fff90e0389f26d4feee0d6cd666a4dd3e4d994de20ef876921ffd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5951bc84905c02cb835341360bd73249c03cacd4dd1b9b1cfa2dedbf6986762b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5951bc84905c02cb835341360bd73249c03cacd4dd1b9b1cfa2dedbf6986762b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc-print v0.1.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "5951bc84905c02cb835341360bd73249c03cacd4dd1b9b1cfa2dedbf6986762b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5951bc84905c02cb835341360bd73249c03cacd4dd1b9b1cfa2dedbf6986762b", kill_on_drop: false }`
[INFO] [stdout] 5951bc84905c02cb835341360bd73249c03cacd4dd1b9b1cfa2dedbf6986762b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b64ee839fc12c6e4d777663ee215ef276c6db297452f853b9f696be1a82bb07d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b64ee839fc12c6e4d777663ee215ef276c6db297452f853b9f696be1a82bb07d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libc_print-d97b9a23fded1b89
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_stderr ... ok
[INFO] [stderr] stderr fd = 2
[INFO] [stderr] stderr!
[INFO] [stderr] stderr fd = 2
[INFO] [stdout] stdout fd = 1
[INFO] [stdout] test tests::test_stderr_write ... ok
[INFO] [stdout] test std_name::tests_std_name::test_stdout ... ok
[INFO] [stdout] test std_name::tests_std_name::test_stderr ... ok
[INFO] [stdout] stdout!
[INFO] [stdout] stdout fd = 1
[INFO] [stdout] test tests::test_stdout_write ... ok
[INFO] [stdout] test tests::test_stdout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libc_print
[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" "b64ee839fc12c6e4d777663ee215ef276c6db297452f853b9f696be1a82bb07d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b64ee839fc12c6e4d777663ee215ef276c6db297452f853b9f696be1a82bb07d", kill_on_drop: false }`
[INFO] [stdout] b64ee839fc12c6e4d777663ee215ef276c6db297452f853b9f696be1a82bb07d