[INFO] fetching crate libc-print 0.1.15...
[INFO] testing libc-print-0.1.15 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate libc-print 0.1.15 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libc-print 0.1.15 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 crates.io crate libc-print 0.1.15
[INFO] finished tweaking crates.io crate libc-print 0.1.15
[INFO] tweaked toml for crates.io crate libc-print 0.1.15 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] a5f2251ef69d80b96574113a7c1311baae1d79c7f59e2d1ed98b9758b3e6b7f8
[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" "a5f2251ef69d80b96574113a7c1311baae1d79c7f59e2d1ed98b9758b3e6b7f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5f2251ef69d80b96574113a7c1311baae1d79c7f59e2d1ed98b9758b3e6b7f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5f2251ef69d80b96574113a7c1311baae1d79c7f59e2d1ed98b9758b3e6b7f8", kill_on_drop: false }`
[INFO] [stdout] a5f2251ef69d80b96574113a7c1311baae1d79c7f59e2d1ed98b9758b3e6b7f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 9bb6ee8273ea348f3972e0ab78b5342ff705cf50d67f06a49ce4818b85fea0f1
[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" "9bb6ee8273ea348f3972e0ab78b5342ff705cf50d67f06a49ce4818b85fea0f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc-print v0.1.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "9bb6ee8273ea348f3972e0ab78b5342ff705cf50d67f06a49ce4818b85fea0f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb6ee8273ea348f3972e0ab78b5342ff705cf50d67f06a49ce4818b85fea0f1", kill_on_drop: false }`
[INFO] [stdout] 9bb6ee8273ea348f3972e0ab78b5342ff705cf50d67f06a49ce4818b85fea0f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 52ef818199d510564aeeb72375baafc46ee350786ff3bb91f077f17c4a48391f
[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" "52ef818199d510564aeeb72375baafc46ee350786ff3bb91f077f17c4a48391f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc-print v0.1.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "52ef818199d510564aeeb72375baafc46ee350786ff3bb91f077f17c4a48391f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ef818199d510564aeeb72375baafc46ee350786ff3bb91f077f17c4a48391f", kill_on_drop: false }`
[INFO] [stdout] 52ef818199d510564aeeb72375baafc46ee350786ff3bb91f077f17c4a48391f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 8506dfff1bc17030b86bb853153aaf00a83a746b6ddec1b99118f6a0daf4032d
[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" "8506dfff1bc17030b86bb853153aaf00a83a746b6ddec1b99118f6a0daf4032d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libc_print-d97b9a23fded1b89
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] stderr!
[INFO] [stdout] stdout fd = 1
[INFO] [stderr] stderr fd = 2
[INFO] [stdout] test tests::test_stderr_write ... ok
[INFO] [stderr] stderr fd = 2
[INFO] [stdout] test tests::test_stdout ... ok
[INFO] [stderr]    Doc-tests libc_print
[INFO] [stdout] test tests::test_stderr ... ok
[INFO] [stdout] stdout!
[INFO] [stdout] stdout fd = 1
[INFO] [stdout] test tests::test_stdout_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] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "8506dfff1bc17030b86bb853153aaf00a83a746b6ddec1b99118f6a0daf4032d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8506dfff1bc17030b86bb853153aaf00a83a746b6ddec1b99118f6a0daf4032d", kill_on_drop: false }`
[INFO] [stdout] 8506dfff1bc17030b86bb853153aaf00a83a746b6ddec1b99118f6a0daf4032d