[INFO] cloning repository https://github.com/miguelluhulima/learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miguelluhulima/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelluhulima%2Flearn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelluhulima%2Flearn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e46262b50f4d1b9cbf7464607b6fdcd03d9ae4f9
[INFO] checking miguelluhulima/learn_rust against master#6fc0273b5a57eb78cc00841181113fda3e509478 for pr-112842
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelluhulima%2Flearn_rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/miguelluhulima/learn_rust on toolchain 6fc0273b5a57eb78cc00841181113fda3e509478
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6fc0273b5a57eb78cc00841181113fda3e509478" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/miguelluhulima/learn_rust
[INFO] finished tweaking git repo https://github.com/miguelluhulima/learn_rust
[INFO] tweaked toml for git repo https://github.com/miguelluhulima/learn_rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/miguelluhulima/learn_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6fc0273b5a57eb78cc00841181113fda3e509478" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+6fc0273b5a57eb78cc00841181113fda3e509478" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b8a783fce914b2738021d7142b2153ff2d2611f3db42cf346c29689e3736b7c
[INFO] running `Command { std: "docker" "start" "-a" "7b8a783fce914b2738021d7142b2153ff2d2611f3db42cf346c29689e3736b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b8a783fce914b2738021d7142b2153ff2d2611f3db42cf346c29689e3736b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8a783fce914b2738021d7142b2153ff2d2611f3db42cf346c29689e3736b7c", kill_on_drop: false }`
[INFO] [stdout] 7b8a783fce914b2738021d7142b2153ff2d2611f3db42cf346c29689e3736b7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+6fc0273b5a57eb78cc00841181113fda3e509478" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a554bc197863504defb02bd044cd289ea80ce7648caeba80097c585cd26b28a7
[INFO] running `Command { std: "docker" "start" "-a" "a554bc197863504defb02bd044cd289ea80ce7648caeba80097c585cd26b28a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "a554bc197863504defb02bd044cd289ea80ce7648caeba80097c585cd26b28a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a554bc197863504defb02bd044cd289ea80ce7648caeba80097c585cd26b28a7", kill_on_drop: false }`
[INFO] [stdout] a554bc197863504defb02bd044cd289ea80ce7648caeba80097c585cd26b28a7