[INFO] fetching crate libc 0.2.81...
[INFO] testing libc-0.2.81 against 1.49.0 for beta-1.50-1
[INFO] extracting crate libc 0.2.81 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate libc 0.2.81 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libc 0.2.81
[INFO] finished tweaking crates.io crate libc 0.2.81
[INFO] tweaked toml for crates.io crate libc 0.2.81 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] ea99681cd12692586406b78eb37af2c8f606ecd2d407955bdb39f765e77742f0
[INFO] running `Command { std: "docker" "start" "-a" "ea99681cd12692586406b78eb37af2c8f606ecd2d407955bdb39f765e77742f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea99681cd12692586406b78eb37af2c8f606ecd2d407955bdb39f765e77742f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea99681cd12692586406b78eb37af2c8f606ecd2d407955bdb39f765e77742f0", kill_on_drop: false }`
[INFO] [stdout] ea99681cd12692586406b78eb37af2c8f606ecd2d407955bdb39f765e77742f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.49.0" "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] c717e37b677e44277e9d742f5ead372737e461f7acbd6eca5979e15afdcf9717
[INFO] running `Command { std: "docker" "start" "-a" "c717e37b677e44277e9d742f5ead372737e461f7acbd6eca5979e15afdcf9717", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "c717e37b677e44277e9d742f5ead372737e461f7acbd6eca5979e15afdcf9717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c717e37b677e44277e9d742f5ead372737e461f7acbd6eca5979e15afdcf9717", kill_on_drop: false }`
[INFO] [stdout] c717e37b677e44277e9d742f5ead372737e461f7acbd6eca5979e15afdcf9717
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d11c2d17008de8540f32755b795e350cbf9a1f7dcd08aacb1d0c3b4cc51a83a3
[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" "d11c2d17008de8540f32755b795e350cbf9a1f7dcd08aacb1d0c3b4cc51a83a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "d11c2d17008de8540f32755b795e350cbf9a1f7dcd08aacb1d0c3b4cc51a83a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d11c2d17008de8540f32755b795e350cbf9a1f7dcd08aacb1d0c3b4cc51a83a3", kill_on_drop: false }`
[INFO] [stdout] d11c2d17008de8540f32755b795e350cbf9a1f7dcd08aacb1d0c3b4cc51a83a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 07acb2925f57b325eeec4ac1844b9be6eb0f342c33dd5737b12e1f524155b0b5
[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" "07acb2925f57b325eeec4ac1844b9be6eb0f342c33dd5737b12e1f524155b0b5", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libc-41748307e0f1fd24
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/const_fn-6532445ca7061800
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libc
[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
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07acb2925f57b325eeec4ac1844b9be6eb0f342c33dd5737b12e1f524155b0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07acb2925f57b325eeec4ac1844b9be6eb0f342c33dd5737b12e1f524155b0b5", kill_on_drop: false }`
[INFO] [stdout] 07acb2925f57b325eeec4ac1844b9be6eb0f342c33dd5737b12e1f524155b0b5