[INFO] fetching crate matt_hello_world_lib 0.1.2...
[INFO] testing matt_hello_world_lib-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate matt_hello_world_lib 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate matt_hello_world_lib 0.1.2
[INFO] finished tweaking crates.io crate matt_hello_world_lib 0.1.2
[INFO] tweaked toml for crates.io crate matt_hello_world_lib 0.1.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matt_hello_world_lib 0.1.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a568058daef48db205b43f59177f2a59354c44f7d0f339b2021b7f4db4661aa
[INFO] running `Command { std: "docker" "start" "-a" "9a568058daef48db205b43f59177f2a59354c44f7d0f339b2021b7f4db4661aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a568058daef48db205b43f59177f2a59354c44f7d0f339b2021b7f4db4661aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a568058daef48db205b43f59177f2a59354c44f7d0f339b2021b7f4db4661aa", kill_on_drop: false }`
[INFO] [stdout] 9a568058daef48db205b43f59177f2a59354c44f7d0f339b2021b7f4db4661aa
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41d2ca3addef26e66718ffab0ba2fa7442ff2fedd973d692626c65932152f5a0
[INFO] running `Command { std: "docker" "start" "-a" "41d2ca3addef26e66718ffab0ba2fa7442ff2fedd973d692626c65932152f5a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling matt_hello_world_lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "41d2ca3addef26e66718ffab0ba2fa7442ff2fedd973d692626c65932152f5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d2ca3addef26e66718ffab0ba2fa7442ff2fedd973d692626c65932152f5a0", kill_on_drop: false }`
[INFO] [stdout] 41d2ca3addef26e66718ffab0ba2fa7442ff2fedd973d692626c65932152f5a0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0953cf0942ddef1895ef26d4167a5b5694e8059d621c5b20536b6d18b7b49c4c
[INFO] running `Command { std: "docker" "start" "-a" "0953cf0942ddef1895ef26d4167a5b5694e8059d621c5b20536b6d18b7b49c4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling matt_hello_world_lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "0953cf0942ddef1895ef26d4167a5b5694e8059d621c5b20536b6d18b7b49c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0953cf0942ddef1895ef26d4167a5b5694e8059d621c5b20536b6d18b7b49c4c", kill_on_drop: false }`
[INFO] [stdout] 0953cf0942ddef1895ef26d4167a5b5694e8059d621c5b20536b6d18b7b49c4c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5bc6e739d2ae439a22ed9b3e6a96a2338b4b9897425678a4261b7270cfbb4cc3
[INFO] running `Command { std: "docker" "start" "-a" "5bc6e739d2ae439a22ed9b3e6a96a2338b4b9897425678a4261b7270cfbb4cc3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matt_hello_world_lib-ce6cfc8734c34067)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests matt_hello_world_lib
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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" "5bc6e739d2ae439a22ed9b3e6a96a2338b4b9897425678a4261b7270cfbb4cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc6e739d2ae439a22ed9b3e6a96a2338b4b9897425678a4261b7270cfbb4cc3", kill_on_drop: false }`
[INFO] [stdout] 5bc6e739d2ae439a22ed9b3e6a96a2338b4b9897425678a4261b7270cfbb4cc3