[INFO] updating cached repository https://github.com/chudley/rust-logging-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ad9b202e5b4bedef0fadf3deb591b7401ee50a5
[INFO] checking chudley/rust-logging-test against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchudley%2Frust-logging-test" "/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/chudley/rust-logging-test on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chudley/rust-logging-test
[INFO] finished tweaking git repo https://github.com/chudley/rust-logging-test
[INFO] tweaked toml for git repo https://github.com/chudley/rust-logging-test written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/chudley/rust-logging-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 319c2cf3bf5aa7f80eaf8035bd0dd3510dad3aea8f5379ed6e032c87e5d17423
[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" "319c2cf3bf5aa7f80eaf8035bd0dd3510dad3aea8f5379ed6e032c87e5d17423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "319c2cf3bf5aa7f80eaf8035bd0dd3510dad3aea8f5379ed6e032c87e5d17423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "319c2cf3bf5aa7f80eaf8035bd0dd3510dad3aea8f5379ed6e032c87e5d17423", kill_on_drop: false }`
[INFO] [stdout] 319c2cf3bf5aa7f80eaf8035bd0dd3510dad3aea8f5379ed6e032c87e5d17423
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--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] 2e81af41b51b175b29d5b76b199b5dd1b0014c0aded51db13d6445c7e6e2eb48
[INFO] running `Command { std: "docker" "start" "-a" "2e81af41b51b175b29d5b76b199b5dd1b0014c0aded51db13d6445c7e6e2eb48", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking slog-bunyan v2.1.0
[INFO] [stderr]     Checking rust-logging-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.22s
[INFO] running `Command { std: "docker" "inspect" "2e81af41b51b175b29d5b76b199b5dd1b0014c0aded51db13d6445c7e6e2eb48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e81af41b51b175b29d5b76b199b5dd1b0014c0aded51db13d6445c7e6e2eb48", kill_on_drop: false }`
[INFO] [stdout] 2e81af41b51b175b29d5b76b199b5dd1b0014c0aded51db13d6445c7e6e2eb48