[INFO] cloning repository https://github.com/mdn184/cargo-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdn184/cargo-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdn184%2Fcargo-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdn184%2Fcargo-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2bc1774d2fc4479bedfeadbee58044ee8d31cfe
[INFO] testing mdn184/cargo-learning against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdn184%2Fcargo-learning" "/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/mdn184/cargo-learning
[INFO] finished tweaking git repo https://github.com/mdn184/cargo-learning
[INFO] tweaked toml for git repo https://github.com/mdn184/cargo-learning written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdn184/cargo-learning on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdn184/cargo-learning 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 298ab3beec3badc12d42eb1f104c671ac88a2ab1ad0a395e3e4cbd5d97a96366
[INFO] running `Command { std: "docker" "start" "-a" "298ab3beec3badc12d42eb1f104c671ac88a2ab1ad0a395e3e4cbd5d97a96366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "298ab3beec3badc12d42eb1f104c671ac88a2ab1ad0a395e3e4cbd5d97a96366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "298ab3beec3badc12d42eb1f104c671ac88a2ab1ad0a395e3e4cbd5d97a96366", kill_on_drop: false }`
[INFO] [stdout] 298ab3beec3badc12d42eb1f104c671ac88a2ab1ad0a395e3e4cbd5d97a96366
[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-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9fc650b59882b2acbbc3f01d8876a4c323f4b86ea2d6633ffaf3c88478c0ad5
[INFO] running `Command { std: "docker" "start" "-a" "d9fc650b59882b2acbbc3f01d8876a4c323f4b86ea2d6633ffaf3c88478c0ad5", kill_on_drop: false }`
[INFO] [stderr]    Compiling first_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "d9fc650b59882b2acbbc3f01d8876a4c323f4b86ea2d6633ffaf3c88478c0ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9fc650b59882b2acbbc3f01d8876a4c323f4b86ea2d6633ffaf3c88478c0ad5", kill_on_drop: false }`
[INFO] [stdout] d9fc650b59882b2acbbc3f01d8876a4c323f4b86ea2d6633ffaf3c88478c0ad5
[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-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c01a8f3161ecbf89eddf7973310f218276f5a5f265ba4a8a0942912567bf72ad
[INFO] running `Command { std: "docker" "start" "-a" "c01a8f3161ecbf89eddf7973310f218276f5a5f265ba4a8a0942912567bf72ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling first_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "c01a8f3161ecbf89eddf7973310f218276f5a5f265ba4a8a0942912567bf72ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c01a8f3161ecbf89eddf7973310f218276f5a5f265ba4a8a0942912567bf72ad", kill_on_drop: false }`
[INFO] [stdout] c01a8f3161ecbf89eddf7973310f218276f5a5f265ba4a8a0942912567bf72ad
[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-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 272bed28b8c2be28b723dd74431c6ec21288d41ba5e00ac56b6de4a6052f5808
[INFO] running `Command { std: "docker" "start" "-a" "272bed28b8c2be28b723dd74431c6ec21288d41ba5e00ac56b6de4a6052f5808", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/first_cargo-d20d9b1280cd92b9)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "272bed28b8c2be28b723dd74431c6ec21288d41ba5e00ac56b6de4a6052f5808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "272bed28b8c2be28b723dd74431c6ec21288d41ba5e00ac56b6de4a6052f5808", kill_on_drop: false }`
[INFO] [stdout] 272bed28b8c2be28b723dd74431c6ec21288d41ba5e00ac56b6de4a6052f5808
