[INFO] cloning repository https://github.com/kindlychung/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/kindlychung/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkindlychung%2Flearn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkindlychung%2Flearn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea2657d0388bd22bcb88cd6a76370b5ade6f1e30
[INFO] checking kindlychung/learn_rust against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkindlychung%2Flearn_rust" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kindlychung/learn_rust on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kindlychung/learn_rust
[INFO] finished tweaking git repo https://github.com/kindlychung/learn_rust
[INFO] tweaked toml for git repo https://github.com/kindlychung/learn_rust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/kindlychung/learn_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.crate-type
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eddc7a5ff54b46b4ad4b4dbe31f12a949047c6c9b6babd4cf4d02adeff6360f9
[INFO] running `Command { std: "docker" "start" "-a" "eddc7a5ff54b46b4ad4b4dbe31f12a949047c6c9b6babd4cf4d02adeff6360f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eddc7a5ff54b46b4ad4b4dbe31f12a949047c6c9b6babd4cf4d02adeff6360f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eddc7a5ff54b46b4ad4b4dbe31f12a949047c6c9b6babd4cf4d02adeff6360f9", kill_on_drop: false }`
[INFO] [stdout] eddc7a5ff54b46b4ad4b4dbe31f12a949047c6c9b6babd4cf4d02adeff6360f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 025f3d0375b520c7d268a84d3988b88cef62124bc4d7c8f9e7e16d884fb12fca
[INFO] running `Command { std: "docker" "start" "-a" "025f3d0375b520c7d268a84d3988b88cef62124bc4d7c8f9e7e16d884fb12fca", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.crate-type
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.9
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "025f3d0375b520c7d268a84d3988b88cef62124bc4d7c8f9e7e16d884fb12fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025f3d0375b520c7d268a84d3988b88cef62124bc4d7c8f9e7e16d884fb12fca", kill_on_drop: false }`
[INFO] [stdout] 025f3d0375b520c7d268a84d3988b88cef62124bc4d7c8f9e7e16d884fb12fca