[INFO] cloning repository https://github.com/MDBijman/alphabet-cover-problem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MDBijman/alphabet-cover-problem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMDBijman%2Falphabet-cover-problem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMDBijman%2Falphabet-cover-problem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1fdef9ba017d74f133f3bfb8451630f104da55b
[INFO] testing MDBijman/alphabet-cover-problem against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMDBijman%2Falphabet-cover-problem" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MDBijman/alphabet-cover-problem
[INFO] finished tweaking git repo https://github.com/MDBijman/alphabet-cover-problem
[INFO] tweaked toml for git repo https://github.com/MDBijman/alphabet-cover-problem written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MDBijman/alphabet-cover-problem on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MDBijman/alphabet-cover-problem 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" "+beta-2026-03-05" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbd0cdc95c001abdb0239062094dc43154dda1c244ee3886b0eb0bc443226f94
[INFO] running `Command { std: "docker" "start" "-a" "bbd0cdc95c001abdb0239062094dc43154dda1c244ee3886b0eb0bc443226f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbd0cdc95c001abdb0239062094dc43154dda1c244ee3886b0eb0bc443226f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbd0cdc95c001abdb0239062094dc43154dda1c244ee3886b0eb0bc443226f94", kill_on_drop: false }`
[INFO] [stdout] bbd0cdc95c001abdb0239062094dc43154dda1c244ee3886b0eb0bc443226f94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31e44d6049a8d19a4d4005ff78f016249eecef6344894e16128cb4e12a890e9c
[INFO] running `Command { std: "docker" "start" "-a" "31e44d6049a8d19a4d4005ff78f016249eecef6344894e16128cb4e12a890e9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling standup-maths-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `newline`
[INFO] [stdout]  --> src/main.rs:3:41
[INFO] [stdout]   |
[INFO] [stdout] 3 |     character::complete::{alpha1, char, newline},
[INFO] [stdout]   |                                         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "31e44d6049a8d19a4d4005ff78f016249eecef6344894e16128cb4e12a890e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31e44d6049a8d19a4d4005ff78f016249eecef6344894e16128cb4e12a890e9c", kill_on_drop: false }`
[INFO] [stdout] 31e44d6049a8d19a4d4005ff78f016249eecef6344894e16128cb4e12a890e9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11068a80fce1b2fb552ecf6275bcb11b5ca1fbee4a927e75bfa56eacb1494630
[INFO] running `Command { std: "docker" "start" "-a" "11068a80fce1b2fb552ecf6275bcb11b5ca1fbee4a927e75bfa56eacb1494630", kill_on_drop: false }`
[INFO] [stderr]    Compiling standup-maths-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `newline`
[INFO] [stdout]  --> src/main.rs:3:41
[INFO] [stdout]   |
[INFO] [stdout] 3 |     character::complete::{alpha1, char, newline},
[INFO] [stdout]   |                                         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "11068a80fce1b2fb552ecf6275bcb11b5ca1fbee4a927e75bfa56eacb1494630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11068a80fce1b2fb552ecf6275bcb11b5ca1fbee4a927e75bfa56eacb1494630", kill_on_drop: false }`
[INFO] [stdout] 11068a80fce1b2fb552ecf6275bcb11b5ca1fbee4a927e75bfa56eacb1494630
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a1d4a2e02ba252601157868157ea920cca710ee94b6eba3b3e4c64fd8a7d6c88
[INFO] running `Command { std: "docker" "start" "-a" "a1d4a2e02ba252601157868157ea920cca710ee94b6eba3b3e4c64fd8a7d6c88", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `newline`
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:3:41
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 3 |     character::complete::{alpha1, char, newline},
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |                                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `standup-maths-challenge` (bin "standup-maths-challenge" test) generated 1 warning (run `cargo fix --bin "standup-maths-challenge" -p standup-maths-challenge --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/standup_maths_challenge-cc3f92e037d92765)
[INFO] running `Command { std: "docker" "inspect" "a1d4a2e02ba252601157868157ea920cca710ee94b6eba3b3e4c64fd8a7d6c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d4a2e02ba252601157868157ea920cca710ee94b6eba3b3e4c64fd8a7d6c88", kill_on_drop: false }`
[INFO] [stdout] a1d4a2e02ba252601157868157ea920cca710ee94b6eba3b3e4c64fd8a7d6c88