[INFO] fetching crate tarfs 0.2.5...
[INFO] testing tarfs-0.2.5 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tarfs 0.2.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tarfs 0.2.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tarfs 0.2.5
[INFO] tweaked toml for crates.io crate tarfs 0.2.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tarfs 0.2.5 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] crate crates.io crate tarfs 0.2.5 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-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1d62046a60b1fd7cfe2ac087ca3456cc7be4d26db8cb694d06a4141149ad46ca
[INFO] running `Command { std: "docker" "start" "-a" "1d62046a60b1fd7cfe2ac087ca3456cc7be4d26db8cb694d06a4141149ad46ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d62046a60b1fd7cfe2ac087ca3456cc7be4d26db8cb694d06a4141149ad46ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d62046a60b1fd7cfe2ac087ca3456cc7be4d26db8cb694d06a4141149ad46ca", kill_on_drop: false }`
[INFO] [stdout] 1d62046a60b1fd7cfe2ac087ca3456cc7be4d26db8cb694d06a4141149ad46ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7367ca81ebd28ab5ad2b9d78a07cc4bc4b5a4c49c7fd652a024bde61ee295874
[INFO] running `Command { std: "docker" "start" "-a" "7367ca81ebd28ab5ad2b9d78a07cc4bc4b5a4c49c7fd652a024bde61ee295874", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling no_std_io v0.6.0
[INFO] [stderr]    Compiling tarfs v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "7367ca81ebd28ab5ad2b9d78a07cc4bc4b5a4c49c7fd652a024bde61ee295874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7367ca81ebd28ab5ad2b9d78a07cc4bc4b5a4c49c7fd652a024bde61ee295874", kill_on_drop: false }`
[INFO] [stdout] 7367ca81ebd28ab5ad2b9d78a07cc4bc4b5a4c49c7fd652a024bde61ee295874
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9ca18dcbb2ee3d78e72c3cc8986a19006172fda7a5397d70ebebcdb550ad6d20
[INFO] running `Command { std: "docker" "start" "-a" "9ca18dcbb2ee3d78e72c3cc8986a19006172fda7a5397d70ebebcdb550ad6d20", kill_on_drop: false }`
[INFO] [stderr]    Compiling tarfs v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "9ca18dcbb2ee3d78e72c3cc8986a19006172fda7a5397d70ebebcdb550ad6d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ca18dcbb2ee3d78e72c3cc8986a19006172fda7a5397d70ebebcdb550ad6d20", kill_on_drop: false }`
[INFO] [stdout] 9ca18dcbb2ee3d78e72c3cc8986a19006172fda7a5397d70ebebcdb550ad6d20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 08fd1a98ede43ac4a6631f5cb2e6498fffb93fe3dcaab99594d2dcfdab9507ec
[INFO] running `Command { std: "docker" "start" "-a" "08fd1a98ede43ac4a6631f5cb2e6498fffb93fe3dcaab99594d2dcfdab9507ec", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tarfs-c2ac3929f1c9899d)
[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] [stderr]    Doc-tests tarfs
[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" "08fd1a98ede43ac4a6631f5cb2e6498fffb93fe3dcaab99594d2dcfdab9507ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08fd1a98ede43ac4a6631f5cb2e6498fffb93fe3dcaab99594d2dcfdab9507ec", kill_on_drop: false }`
[INFO] [stdout] 08fd1a98ede43ac4a6631f5cb2e6498fffb93fe3dcaab99594d2dcfdab9507ec