[INFO] cloning repository https://github.com/nmoutschen/test-rust-tracing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nmoutschen/test-rust-tracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmoutschen%2Ftest-rust-tracing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmoutschen%2Ftest-rust-tracing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6d3444f63cfcc7f7b864b7a26c899927488da7f
[INFO] checking nmoutschen/test-rust-tracing against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmoutschen%2Ftest-rust-tracing" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nmoutschen/test-rust-tracing on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nmoutschen/test-rust-tracing
[INFO] finished tweaking git repo https://github.com/nmoutschen/test-rust-tracing
[INFO] tweaked toml for git repo https://github.com/nmoutschen/test-rust-tracing written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nmoutschen/test-rust-tracing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 31a2a1e7e6ed6c4d904e751775de79424915889c413d42fb45cc11835a44821b
[INFO] running `Command { std: "docker" "start" "-a" "31a2a1e7e6ed6c4d904e751775de79424915889c413d42fb45cc11835a44821b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31a2a1e7e6ed6c4d904e751775de79424915889c413d42fb45cc11835a44821b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a2a1e7e6ed6c4d904e751775de79424915889c413d42fb45cc11835a44821b", kill_on_drop: false }`
[INFO] [stdout] 31a2a1e7e6ed6c4d904e751775de79424915889c413d42fb45cc11835a44821b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2137a39e326cf9df19182896ec2bb261312f8fa8298ff90d4ca6aa8126ffe4be
[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" "2137a39e326cf9df19182896ec2bb261312f8fa8298ff90d4ca6aa8126ffe4be", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-serde v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking tracing-subscriber v0.2.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking tracing v0.1.15
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking test-tracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "2137a39e326cf9df19182896ec2bb261312f8fa8298ff90d4ca6aa8126ffe4be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2137a39e326cf9df19182896ec2bb261312f8fa8298ff90d4ca6aa8126ffe4be", kill_on_drop: false }`
[INFO] [stdout] 2137a39e326cf9df19182896ec2bb261312f8fa8298ff90d4ca6aa8126ffe4be