[INFO] cloning repository https://github.com/CleverCloud/metrics-spec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CleverCloud/metrics-spec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCleverCloud%2Fmetrics-spec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCleverCloud%2Fmetrics-spec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9af982eb50f36328da9541ad7123e53019815c56
[INFO] checking CleverCloud/metrics-spec against master#39d8d3ab6a880179ef12b5d11414d940711ed422 for pr-87316
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCleverCloud%2Fmetrics-spec" "/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/CleverCloud/metrics-spec on toolchain 39d8d3ab6a880179ef12b5d11414d940711ed422
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39d8d3ab6a880179ef12b5d11414d940711ed422" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CleverCloud/metrics-spec
[INFO] finished tweaking git repo https://github.com/CleverCloud/metrics-spec
[INFO] tweaked toml for git repo https://github.com/CleverCloud/metrics-spec written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/CleverCloud/metrics-spec already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39d8d3ab6a880179ef12b5d11414d940711ed422" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39d8d3ab6a880179ef12b5d11414d940711ed422" "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] 8b9b51b041d07224889fd8454e182dadf0a52167fa91f0e169e148cd2874a699
[INFO] running `Command { std: "docker" "start" "-a" "8b9b51b041d07224889fd8454e182dadf0a52167fa91f0e169e148cd2874a699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b9b51b041d07224889fd8454e182dadf0a52167fa91f0e169e148cd2874a699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b9b51b041d07224889fd8454e182dadf0a52167fa91f0e169e148cd2874a699", kill_on_drop: false }`
[INFO] [stdout] 8b9b51b041d07224889fd8454e182dadf0a52167fa91f0e169e148cd2874a699
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39d8d3ab6a880179ef12b5d11414d940711ed422" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bef8ad86dc0503fbeeb1c70e3a4603ff58e9a494172c22dc1c60280810d2bfa
[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" "6bef8ad86dc0503fbeeb1c70e3a4603ff58e9a494172c22dc1c60280810d2bfa", kill_on_drop: false }`
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking linked-hash-map v0.5.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking clap v2.29.2
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]     Checking stdweb v0.3.0
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking structopt v0.1.6
[WARN] too much data in the log, truncating it