[INFO] cloning repository https://github.com/mozhangguo/RustLearningBasic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mozhangguo/RustLearningBasic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozhangguo%2FRustLearningBasic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozhangguo%2FRustLearningBasic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb28fd5fa4e06c7fc57b7d1642acfb140dd61435
[INFO] checking mozhangguo/RustLearningBasic against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozhangguo%2FRustLearningBasic" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mozhangguo/RustLearningBasic 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/mozhangguo/RustLearningBasic
[INFO] finished tweaking git repo https://github.com/mozhangguo/RustLearningBasic
[INFO] tweaked toml for git repo https://github.com/mozhangguo/RustLearningBasic written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mozhangguo/RustLearningBasic 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11d2aa3207afa6376ad4b471b6465b266b70e2780eea4c9a7a924b5917bf22fa
[INFO] running `Command { std: "docker" "start" "-a" "11d2aa3207afa6376ad4b471b6465b266b70e2780eea4c9a7a924b5917bf22fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11d2aa3207afa6376ad4b471b6465b266b70e2780eea4c9a7a924b5917bf22fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d2aa3207afa6376ad4b471b6465b266b70e2780eea4c9a7a924b5917bf22fa", kill_on_drop: false }`
[INFO] [stdout] 11d2aa3207afa6376ad4b471b6465b266b70e2780eea4c9a7a924b5917bf22fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e66d2640c669ae550f23245bedc1b2f822e7dcef66134c23730c463c8275c9e5
[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" "e66d2640c669ae550f23245bedc1b2f822e7dcef66134c23730c463c8275c9e5", kill_on_drop: false }`
[INFO] [stderr]     Checking RustLearning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `RustLearning` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_learning`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustLearning` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_learning`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "e66d2640c669ae550f23245bedc1b2f822e7dcef66134c23730c463c8275c9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e66d2640c669ae550f23245bedc1b2f822e7dcef66134c23730c463c8275c9e5", kill_on_drop: false }`
[INFO] [stdout] e66d2640c669ae550f23245bedc1b2f822e7dcef66134c23730c463c8275c9e5