[INFO] fetching crate mstak-util 0.1.18...
[INFO] testing mstak-util-0.1.18 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mstak-util 0.1.18 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate mstak-util 0.1.18
[INFO] finished tweaking crates.io crate mstak-util 0.1.18
[INFO] tweaked toml for crates.io crate mstak-util 0.1.18 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mstak-util 0.1.18 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d5901e669279a1e9aff27422c022cd4fa9578cf92f10a817b01f7548415ae99c
[INFO] running `Command { std: "docker" "start" "-a" "d5901e669279a1e9aff27422c022cd4fa9578cf92f10a817b01f7548415ae99c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5901e669279a1e9aff27422c022cd4fa9578cf92f10a817b01f7548415ae99c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5901e669279a1e9aff27422c022cd4fa9578cf92f10a817b01f7548415ae99c", kill_on_drop: false }`
[INFO] [stdout] d5901e669279a1e9aff27422c022cd4fa9578cf92f10a817b01f7548415ae99c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c55a1cf151ef5f7d60d99afc7b956af5b9987899aa8968215f4ed59dc58bc371
[INFO] running `Command { std: "docker" "start" "-a" "c55a1cf151ef5f7d60d99afc7b956af5b9987899aa8968215f4ed59dc58bc371", kill_on_drop: false }`
[INFO] [stderr]    Compiling mstak-util v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "c55a1cf151ef5f7d60d99afc7b956af5b9987899aa8968215f4ed59dc58bc371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c55a1cf151ef5f7d60d99afc7b956af5b9987899aa8968215f4ed59dc58bc371", kill_on_drop: false }`
[INFO] [stdout] c55a1cf151ef5f7d60d99afc7b956af5b9987899aa8968215f4ed59dc58bc371
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 01fc33588f0fc3a4216982bf5868e987bbcda89fdf716183891ca7aeab942455
[INFO] running `Command { std: "docker" "start" "-a" "01fc33588f0fc3a4216982bf5868e987bbcda89fdf716183891ca7aeab942455", kill_on_drop: false }`
[INFO] [stderr]    Compiling mstak-util v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "01fc33588f0fc3a4216982bf5868e987bbcda89fdf716183891ca7aeab942455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01fc33588f0fc3a4216982bf5868e987bbcda89fdf716183891ca7aeab942455", kill_on_drop: false }`
[INFO] [stdout] 01fc33588f0fc3a4216982bf5868e987bbcda89fdf716183891ca7aeab942455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d98d047e223ceb206e4c91c7cc2668176890387ce125b2e551b7bdb2d47ec000
[INFO] running `Command { std: "docker" "start" "-a" "d98d047e223ceb206e4c91c7cc2668176890387ce125b2e551b7bdb2d47ec000", 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/mstak_util-7a80323b1c6c22c8)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test heap::tests::new ... ok
[INFO] [stderr]    Doc-tests mstak_util
[INFO] [stdout] test heap::tests::new_zero_sized ... ok
[INFO] [stdout] test tests::file_size ... ok
[INFO] [stdout] test mmap::tests::read_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "d98d047e223ceb206e4c91c7cc2668176890387ce125b2e551b7bdb2d47ec000", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98d047e223ceb206e4c91c7cc2668176890387ce125b2e551b7bdb2d47ec000", kill_on_drop: false }`
[INFO] [stdout] d98d047e223ceb206e4c91c7cc2668176890387ce125b2e551b7bdb2d47ec000