[INFO] cloning repository https://github.com/nhatvu148/rustlang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nhatvu148/rustlang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnhatvu148%2Frustlang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnhatvu148%2Frustlang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 704b8ed5a39ee3689f645e664a8ae78c9d0ec389
[INFO] checking nhatvu148/rustlang against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnhatvu148%2Frustlang" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nhatvu148/rustlang on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nhatvu148/rustlang
[INFO] finished tweaking git repo https://github.com/nhatvu148/rustlang
[INFO] tweaked toml for git repo https://github.com/nhatvu148/rustlang written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/nhatvu148/rustlang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 0ddbe81e31ee4c632e50806030d857a1fd0340bc9c95dff01ad798c386f9bcc2
[INFO] running `Command { std: "docker" "start" "-a" "0ddbe81e31ee4c632e50806030d857a1fd0340bc9c95dff01ad798c386f9bcc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ddbe81e31ee4c632e50806030d857a1fd0340bc9c95dff01ad798c386f9bcc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ddbe81e31ee4c632e50806030d857a1fd0340bc9c95dff01ad798c386f9bcc2", kill_on_drop: false }`
[INFO] [stdout] 0ddbe81e31ee4c632e50806030d857a1fd0340bc9c95dff01ad798c386f9bcc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b27f45d4d6046e2c05c21b969e927dd8a6de3284804caf4b9692f625eb86c1c5
[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" "b27f45d4d6046e2c05c21b969e927dd8a6de3284804caf4b9692f625eb86c1c5", kill_on_drop: false }`
[INFO] [stderr]     Checking first_lesson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "b27f45d4d6046e2c05c21b969e927dd8a6de3284804caf4b9692f625eb86c1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b27f45d4d6046e2c05c21b969e927dd8a6de3284804caf4b9692f625eb86c1c5", kill_on_drop: false }`
[INFO] [stdout] b27f45d4d6046e2c05c21b969e927dd8a6de3284804caf4b9692f625eb86c1c5