[INFO] cloning 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" "clone" "--bare" "https://github.com/chudley/rust-logging-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchudley%2Frust-logging-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchudley%2Frust-logging-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ad9b202e5b4bedef0fadf3deb591b7401ee50a5
[INFO] checking chudley/rust-logging-test against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchudley%2Frust-logging-test" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chudley/rust-logging-test on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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-10/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog v2.4.1
[INFO] [stderr]   Downloaded nix v0.8.1
[INFO] [stderr]   Downloaded slog-bunyan v2.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94cb2efe1a21eb86fe233228f076d54f38ba61235da09b351e02478a6160571a
[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" "94cb2efe1a21eb86fe233228f076d54f38ba61235da09b351e02478a6160571a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94cb2efe1a21eb86fe233228f076d54f38ba61235da09b351e02478a6160571a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94cb2efe1a21eb86fe233228f076d54f38ba61235da09b351e02478a6160571a", kill_on_drop: false }`
[INFO] [stdout] 94cb2efe1a21eb86fe233228f076d54f38ba61235da09b351e02478a6160571a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b4d42f4fa4f0da43f734434dc9a050ca78989e38b0ad9f0ab45afcd390d43e3
[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" "6b4d42f4fa4f0da43f734434dc9a050ca78989e38b0ad9f0ab45afcd390d43e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.3.0
[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 16.65s
[INFO] running `Command { std: "docker" "inspect" "6b4d42f4fa4f0da43f734434dc9a050ca78989e38b0ad9f0ab45afcd390d43e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b4d42f4fa4f0da43f734434dc9a050ca78989e38b0ad9f0ab45afcd390d43e3", kill_on_drop: false }`
[INFO] [stdout] 6b4d42f4fa4f0da43f734434dc9a050ca78989e38b0ad9f0ab45afcd390d43e3