[INFO] cloning repository https://github.com/justwink/rust-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/justwink/rust-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustwink%2Frust-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustwink%2Frust-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 230e554ea35021489d1a4a5cb669b226d6f3770d
[INFO] checking justwink/rust-demo/230e554ea35021489d1a4a5cb669b226d6f3770d against master#31a9463c6e2794a59ce57a8f37abc6966afc2a58 for pr-156807
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustwink%2Frust-demo" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/justwink/rust-demo
[INFO] finished tweaking git repo https://github.com/justwink/rust-demo
[INFO] tweaked toml for git repo https://github.com/justwink/rust-demo written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/justwink/rust-demo on toolchain 31a9463c6e2794a59ce57a8f37abc6966afc2a58
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/justwink/rust-demo 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" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fd5400a7f25c5c2824bd2a5f06dcbf2381f5ed37a80222a18502778aa488528
[INFO] running `Command { std: "docker" "start" "-a" "4fd5400a7f25c5c2824bd2a5f06dcbf2381f5ed37a80222a18502778aa488528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fd5400a7f25c5c2824bd2a5f06dcbf2381f5ed37a80222a18502778aa488528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd5400a7f25c5c2824bd2a5f06dcbf2381f5ed37a80222a18502778aa488528", kill_on_drop: false }`
[INFO] [stdout] 4fd5400a7f25c5c2824bd2a5f06dcbf2381f5ed37a80222a18502778aa488528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bd948ed3544906756b99e7f961b5f0276349e3b443411719593ac4787afed31
[INFO] running `Command { std: "docker" "start" "-a" "7bd948ed3544906756b99e7f961b5f0276349e3b443411719593ac4787afed31", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking smallvec v1.13.2
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[INFO] [stderr]    Compiling parking_lot_core v0.9.10
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[INFO] [stderr]     Checking grep v0.1.0 (/opt/rustwide/workdir/grep)
[INFO] [stderr]     Checking demo1 v0.1.0 (/opt/rustwide/workdir/demo)
[INFO] [stdout] error[E0601]: `main` function not found in crate `demo1`
[INFO] [stdout]    --> demo/src/main.rs:833:6
[INFO] [stdout]     |
[INFO] [stdout] 833 | // }
[INFO] [stdout]     |     ^ consider adding a `main` function to `demo/src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `demo1` (bin "demo1") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7bd948ed3544906756b99e7f961b5f0276349e3b443411719593ac4787afed31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bd948ed3544906756b99e7f961b5f0276349e3b443411719593ac4787afed31", kill_on_drop: false }`
[INFO] [stdout] 7bd948ed3544906756b99e7f961b5f0276349e3b443411719593ac4787afed31