[INFO] cloning repository https://github.com/bpk-t/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bpk-t/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbpk-t%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbpk-t%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1df7873e9a168056f85a8118ad00cb22173bc000
[INFO] testing bpk-t/rust_practice against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbpk-t%2Frust_practice" "/workspace/builds/worker-99/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-99/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bpk-t/rust_practice on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bpk-t/rust_practice
[INFO] finished tweaking git repo https://github.com/bpk-t/rust_practice
[INFO] tweaked toml for git repo https://github.com/bpk-t/rust_practice written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate git repo https://github.com/bpk-t/rust_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d5452fbeb981ff360c22561a5ddb382c85fbb5352d12c075949300520cc20db
[INFO] running `Command { std: "docker" "start" "-a" "8d5452fbeb981ff360c22561a5ddb382c85fbb5352d12c075949300520cc20db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d5452fbeb981ff360c22561a5ddb382c85fbb5352d12c075949300520cc20db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d5452fbeb981ff360c22561a5ddb382c85fbb5352d12c075949300520cc20db", kill_on_drop: false }`
[INFO] [stdout] 8d5452fbeb981ff360c22561a5ddb382c85fbb5352d12c075949300520cc20db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 105df5f48353392fcfc88fa61cde752980236d066e6510b4d8e0a8e6219c564c
[INFO] running `Command { std: "docker" "start" "-a" "105df5f48353392fcfc88fa61cde752980236d066e6510b4d8e0a8e6219c564c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `lang_spec`
[INFO] [stdout]    --> src/bin/lang_spec.rs:2:1
[INFO] [stdout]     |
[INFO] [stdout] 2   | / #[cfg(test)]
[INFO] [stdout] 3   | | mod lang_spec {
[INFO] [stdout] 4   | |
[INFO] [stdout] 5   | |     #[test]
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     }
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^ consider adding a `main` function to `src/bin/lang_spec.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_practice` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "105df5f48353392fcfc88fa61cde752980236d066e6510b4d8e0a8e6219c564c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "105df5f48353392fcfc88fa61cde752980236d066e6510b4d8e0a8e6219c564c", kill_on_drop: false }`
[INFO] [stdout] 105df5f48353392fcfc88fa61cde752980236d066e6510b4d8e0a8e6219c564c