[INFO] cloning repository https://github.com/LukeMathWalker/tracing-bunyan-formatter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LukeMathWalker/tracing-bunyan-formatter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukeMathWalker%2Ftracing-bunyan-formatter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukeMathWalker%2Ftracing-bunyan-formatter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f06ef9a0c79400aea2a56db8311b5d6da217dd44
[INFO] checking LukeMathWalker/tracing-bunyan-formatter against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukeMathWalker%2Ftracing-bunyan-formatter" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LukeMathWalker/tracing-bunyan-formatter on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LukeMathWalker/tracing-bunyan-formatter
[INFO] finished tweaking git repo https://github.com/LukeMathWalker/tracing-bunyan-formatter
[INFO] tweaked toml for git repo https://github.com/LukeMathWalker/tracing-bunyan-formatter written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/LukeMathWalker/tracing-bunyan-formatter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04b59a6ed4565c922c5af48c58ccbacc26587faf2fb3e69614962a355702c888
[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" "04b59a6ed4565c922c5af48c58ccbacc26587faf2fb3e69614962a355702c888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04b59a6ed4565c922c5af48c58ccbacc26587faf2fb3e69614962a355702c888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04b59a6ed4565c922c5af48c58ccbacc26587faf2fb3e69614962a355702c888", kill_on_drop: false }`
[INFO] [stdout] 04b59a6ed4565c922c5af48c58ccbacc26587faf2fb3e69614962a355702c888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22d18fd86147bf1bd0c3a17056ba714ae37cec620166e8f5c7b29afb83352ade
[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" "22d18fd86147bf1bd0c3a17056ba714ae37cec620166e8f5c7b29afb83352ade", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking tracing-subscriber v0.2.18
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tracing-bunyan-formatter v0.2.5-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.37s
[INFO] running `Command { std: "docker" "inspect" "22d18fd86147bf1bd0c3a17056ba714ae37cec620166e8f5c7b29afb83352ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22d18fd86147bf1bd0c3a17056ba714ae37cec620166e8f5c7b29afb83352ade", kill_on_drop: false }`
[INFO] [stdout] 22d18fd86147bf1bd0c3a17056ba714ae37cec620166e8f5c7b29afb83352ade