[INFO] cloning repository https://github.com/pnnh/rust-minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pnnh/rust-minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpnnh%2Frust-minigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpnnh%2Frust-minigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e560362a628b5aed4e4b9f2004515450b1aa386
[INFO] testing pnnh/rust-minigrep against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpnnh%2Frust-minigrep" "/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/pnnh/rust-minigrep on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pnnh/rust-minigrep
[INFO] finished tweaking git repo https://github.com/pnnh/rust-minigrep
[INFO] tweaked toml for git repo https://github.com/pnnh/rust-minigrep written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/pnnh/rust-minigrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54f116542adcab876d426ed7a989b11639f3f16110d9165068ab902489ccfac9
[INFO] running `Command { std: "docker" "start" "-a" "54f116542adcab876d426ed7a989b11639f3f16110d9165068ab902489ccfac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54f116542adcab876d426ed7a989b11639f3f16110d9165068ab902489ccfac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f116542adcab876d426ed7a989b11639f3f16110d9165068ab902489ccfac9", kill_on_drop: false }`
[INFO] [stdout] 54f116542adcab876d426ed7a989b11639f3f16110d9165068ab902489ccfac9
[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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91efe950544dd9a1ae90ca11f36880ff81e40b8bf7c9b6463b779235a7585e33
[INFO] running `Command { std: "docker" "start" "-a" "91efe950544dd9a1ae90ca11f36880ff81e40b8bf7c9b6463b779235a7585e33", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `num` in this scope
[INFO] [stdout]   --> src/bin/closure.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         num
[INFO] [stdout]    |         ^^^ help: a local variable with a similar name exists: `mum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/bin/closure.rs:42:30
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let expensive_closure = |num| {
[INFO] [stdout]    |                              ^^^ consider giving this closure parameter a type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_minigrep` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "91efe950544dd9a1ae90ca11f36880ff81e40b8bf7c9b6463b779235a7585e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91efe950544dd9a1ae90ca11f36880ff81e40b8bf7c9b6463b779235a7585e33", kill_on_drop: false }`
[INFO] [stdout] 91efe950544dd9a1ae90ca11f36880ff81e40b8bf7c9b6463b779235a7585e33