[INFO] cloning repository https://github.com/zainsubhani/RustFileReader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zainsubhani/RustFileReader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzainsubhani%2FRustFileReader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzainsubhani%2FRustFileReader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4602bbd2088b6c1e60b023100384818b69900ef6
[INFO] testing zainsubhani/RustFileReader against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzainsubhani%2FRustFileReader" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zainsubhani/RustFileReader
[INFO] finished tweaking git repo https://github.com/zainsubhani/RustFileReader
[INFO] tweaked toml for git repo https://github.com/zainsubhani/RustFileReader written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zainsubhani/RustFileReader on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zainsubhani/RustFileReader 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01fc307ae5fb0eb7d5d4da692d0da747741de8d327a3cf289dc06d0e0f3ecd3f
[INFO] running `Command { std: "docker" "start" "-a" "01fc307ae5fb0eb7d5d4da692d0da747741de8d327a3cf289dc06d0e0f3ecd3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01fc307ae5fb0eb7d5d4da692d0da747741de8d327a3cf289dc06d0e0f3ecd3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01fc307ae5fb0eb7d5d4da692d0da747741de8d327a3cf289dc06d0e0f3ecd3f", kill_on_drop: false }`
[INFO] [stdout] 01fc307ae5fb0eb7d5d4da692d0da747741de8d327a3cf289dc06d0e0f3ecd3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 3f25d1517c5c5b76aacb3fcd23589ff1fa4a37469c987676fd4b130e2ff79452
[INFO] running `Command { std: "docker" "start" "-a" "3f25d1517c5c5b76aacb3fcd23589ff1fa4a37469c987676fd4b130e2ff79452", kill_on_drop: false }`
[INFO] [stderr]    Compiling file_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found keyword `pub`
[INFO] [stdout]   --> src/quiz1.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | mod pub tests {
[INFO] [stdout]    |     ^^^ expected identifier, found keyword
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `;` or `{`, found `tests`
[INFO] [stdout]   --> src/quiz1.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | mod pub tests {
[INFO] [stdout]    |         ^^^^^ expected one of `;` or `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `file_reader` (bin "file_reader") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3f25d1517c5c5b76aacb3fcd23589ff1fa4a37469c987676fd4b130e2ff79452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f25d1517c5c5b76aacb3fcd23589ff1fa4a37469c987676fd4b130e2ff79452", kill_on_drop: false }`
[INFO] [stdout] 3f25d1517c5c5b76aacb3fcd23589ff1fa4a37469c987676fd4b130e2ff79452