[INFO] cloning repository https://github.com/quentin-k/cold_steel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quentin-k/cold_steel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquentin-k%2Fcold_steel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquentin-k%2Fcold_steel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a14a7bfb7451ae40f3919a49b0e2880e135f9693
[INFO] checking quentin-k/cold_steel against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquentin-k%2Fcold_steel" "/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/quentin-k/cold_steel on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/quentin-k/cold_steel
[INFO] finished tweaking git repo https://github.com/quentin-k/cold_steel
[INFO] tweaked toml for git repo https://github.com/quentin-k/cold_steel written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/quentin-k/cold_steel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a57c715dea6a6287f5a838f96b02584b48f17f8f6130520218db12a33adfc45
[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" "3a57c715dea6a6287f5a838f96b02584b48f17f8f6130520218db12a33adfc45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a57c715dea6a6287f5a838f96b02584b48f17f8f6130520218db12a33adfc45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a57c715dea6a6287f5a838f96b02584b48f17f8f6130520218db12a33adfc45", kill_on_drop: false }`
[INFO] [stdout] 3a57c715dea6a6287f5a838f96b02584b48f17f8f6130520218db12a33adfc45
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a919ba644f1c5f55209d3fc00767a66b3a4068b78a2a116d82fb01a7421af5e4
[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" "a919ba644f1c5f55209d3fc00767a66b3a4068b78a2a116d82fb01a7421af5e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking websocket v0.23.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking which v2.0.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking headless_chrome v0.9.0
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking webscreenshot v0.2.2
[INFO] [stderr]     Checking cold_steel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.22s
[INFO] running `Command { std: "docker" "inspect" "a919ba644f1c5f55209d3fc00767a66b3a4068b78a2a116d82fb01a7421af5e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a919ba644f1c5f55209d3fc00767a66b3a4068b78a2a116d82fb01a7421af5e4", kill_on_drop: false }`
[INFO] [stdout] a919ba644f1c5f55209d3fc00767a66b3a4068b78a2a116d82fb01a7421af5e4