[INFO] cloning repository https://github.com/exercism/rust-analyzer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/exercism/rust-analyzer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexercism%2Frust-analyzer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexercism%2Frust-analyzer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b6d04d24d5163bbc5faf647cc20195d0e4da887
[INFO] checking exercism/rust-analyzer against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexercism%2Frust-analyzer" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/exercism/rust-analyzer on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/exercism/rust-analyzer
[INFO] finished tweaking git repo https://github.com/exercism/rust-analyzer
[INFO] tweaked toml for git repo https://github.com/exercism/rust-analyzer written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/exercism/rust-analyzer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93cec97afe8ce9a806ea4fa44e4532aff02da7cedebf9027c4c33639845062ed
[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" "93cec97afe8ce9a806ea4fa44e4532aff02da7cedebf9027c4c33639845062ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93cec97afe8ce9a806ea4fa44e4532aff02da7cedebf9027c4c33639845062ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93cec97afe8ce9a806ea4fa44e4532aff02da7cedebf9027c4c33639845062ed", kill_on_drop: false }`
[INFO] [stdout] 93cec97afe8ce9a806ea4fa44e4532aff02da7cedebf9027c4c33639845062ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2e3ed766851ec6831fd8a99f5096e2a0fa1171d3040a44d1c0bc5758bb6e6ca
[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" "d2e3ed766851ec6831fd8a99f5096e2a0fa1171d3040a44d1c0bc5758bb6e6ca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking proc-macro2 v0.4.27
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking quote v0.6.11
[INFO] [stderr]     Checking syn v0.15.30
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde v1.0.91
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking rust-analyzer v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.13s
[INFO] running `Command { std: "docker" "inspect" "d2e3ed766851ec6831fd8a99f5096e2a0fa1171d3040a44d1c0bc5758bb6e6ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2e3ed766851ec6831fd8a99f5096e2a0fa1171d3040a44d1c0bc5758bb6e6ca", kill_on_drop: false }`
[INFO] [stdout] d2e3ed766851ec6831fd8a99f5096e2a0fa1171d3040a44d1c0bc5758bb6e6ca