[INFO] fetching crate po6 0.1.7...
[INFO] testing po6-0.1.7 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate po6 0.1.7 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate po6 0.1.7
[INFO] finished tweaking crates.io crate po6 0.1.7
[INFO] tweaked toml for crates.io crate po6 0.1.7 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate po6 0.1.7 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c07d4b18ba23aa407379779a58d9640df526e26b49dddebde9d54ac1fb541df2
[INFO] running `Command { std: "docker" "start" "-a" "c07d4b18ba23aa407379779a58d9640df526e26b49dddebde9d54ac1fb541df2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c07d4b18ba23aa407379779a58d9640df526e26b49dddebde9d54ac1fb541df2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c07d4b18ba23aa407379779a58d9640df526e26b49dddebde9d54ac1fb541df2", kill_on_drop: false }`
[INFO] [stdout] c07d4b18ba23aa407379779a58d9640df526e26b49dddebde9d54ac1fb541df2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 48a349940709caf8c3d8f68006000f9da01f32560c815dda543b81098f45288f
[INFO] running `Command { std: "docker" "start" "-a" "48a349940709caf8c3d8f68006000f9da01f32560c815dda543b81098f45288f", kill_on_drop: false }`
[INFO] [stderr]    Compiling po6 v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "48a349940709caf8c3d8f68006000f9da01f32560c815dda543b81098f45288f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48a349940709caf8c3d8f68006000f9da01f32560c815dda543b81098f45288f", kill_on_drop: false }`
[INFO] [stdout] 48a349940709caf8c3d8f68006000f9da01f32560c815dda543b81098f45288f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] be5765c02b99b8b0b9d3d8480142a643d70c9f0f42a5fa63331c5c53f4a21430
[INFO] running `Command { std: "docker" "start" "-a" "be5765c02b99b8b0b9d3d8480142a643d70c9f0f42a5fa63331c5c53f4a21430", kill_on_drop: false }`
[INFO] [stderr]    Compiling po6 v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "be5765c02b99b8b0b9d3d8480142a643d70c9f0f42a5fa63331c5c53f4a21430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be5765c02b99b8b0b9d3d8480142a643d70c9f0f42a5fa63331c5c53f4a21430", kill_on_drop: false }`
[INFO] [stdout] be5765c02b99b8b0b9d3d8480142a643d70c9f0f42a5fa63331c5c53f4a21430
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d09ce4275d794e1bcd6fe7dc8c173e9053611e6d65ae6e190d22bc5f98b99ff4
[INFO] running `Command { std: "docker" "start" "-a" "d09ce4275d794e1bcd6fe7dc8c173e9053611e6d65ae6e190d22bc5f98b99ff4", 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/po6-589c35126e344420)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test shim::malloc::test::test_realloc ... 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 po6
[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" "d09ce4275d794e1bcd6fe7dc8c173e9053611e6d65ae6e190d22bc5f98b99ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d09ce4275d794e1bcd6fe7dc8c173e9053611e6d65ae6e190d22bc5f98b99ff4", kill_on_drop: false }`
[INFO] [stdout] d09ce4275d794e1bcd6fe7dc8c173e9053611e6d65ae6e190d22bc5f98b99ff4