[INFO] cloning repository https://github.com/tippenein/one-way-accumulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tippenein/one-way-accumulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftippenein%2Fone-way-accumulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftippenein%2Fone-way-accumulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8127071e64253ef8385f69abe18ab06691a916be
[INFO] checking tippenein/one-way-accumulator against try#409ef99a7d4dc96ae91f65d4b48413ed174514d6 for pr-137633
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftippenein%2Fone-way-accumulator" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tippenein/one-way-accumulator on toolchain 409ef99a7d4dc96ae91f65d4b48413ed174514d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tippenein/one-way-accumulator
[INFO] finished tweaking git repo https://github.com/tippenein/one-way-accumulator
[INFO] tweaked toml for git repo https://github.com/tippenein/one-way-accumulator written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tippenein/one-way-accumulator 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" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2809a5054936c3ab4a7787b4daa22b8fb2ae31daad09bc32127e5b4e7c4e415
[INFO] running `Command { std: "docker" "start" "-a" "c2809a5054936c3ab4a7787b4daa22b8fb2ae31daad09bc32127e5b4e7c4e415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2809a5054936c3ab4a7787b4daa22b8fb2ae31daad09bc32127e5b4e7c4e415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2809a5054936c3ab4a7787b4daa22b8fb2ae31daad09bc32127e5b4e7c4e415", kill_on_drop: false }`
[INFO] [stdout] c2809a5054936c3ab4a7787b4daa22b8fb2ae31daad09bc32127e5b4e7c4e415
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63c6473f629bae220bdb1e5f2f7f22a87ad5a038fad5830ca0a9decd23d4677d
[INFO] running `Command { std: "docker" "start" "-a" "63c6473f629bae220bdb1e5f2f7f22a87ad5a038fad5830ca0a9decd23d4677d", kill_on_drop: false }`
[INFO] [stderr]     Checking one-way-accumulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `one_way_accumulator`
[INFO] [stdout]   --> src/main.rs:53:2
[INFO] [stdout]    |
[INFO] [stdout] 53 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `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 `one-way-accumulator` (bin "one-way-accumulator") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "63c6473f629bae220bdb1e5f2f7f22a87ad5a038fad5830ca0a9decd23d4677d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63c6473f629bae220bdb1e5f2f7f22a87ad5a038fad5830ca0a9decd23d4677d", kill_on_drop: false }`
[INFO] [stdout] 63c6473f629bae220bdb1e5f2f7f22a87ad5a038fad5830ca0a9decd23d4677d