[INFO] fetching crate mailboxxy 0.0.4...
[INFO] testing mailboxxy-0.0.4 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mailboxxy 0.0.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mailboxxy 0.0.4
[INFO] finished tweaking crates.io crate mailboxxy 0.0.4
[INFO] tweaked toml for crates.io crate mailboxxy 0.0.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mailboxxy 0.0.4 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 mailboxxy 0.0.4 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bf2c75cfe4cc6ff3fabc69069d0fa565c28c830f8df6f7deae6b235fed682c92
[INFO] running `Command { std: "docker" "start" "-a" "bf2c75cfe4cc6ff3fabc69069d0fa565c28c830f8df6f7deae6b235fed682c92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf2c75cfe4cc6ff3fabc69069d0fa565c28c830f8df6f7deae6b235fed682c92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2c75cfe4cc6ff3fabc69069d0fa565c28c830f8df6f7deae6b235fed682c92", kill_on_drop: false }`
[INFO] [stdout] bf2c75cfe4cc6ff3fabc69069d0fa565c28c830f8df6f7deae6b235fed682c92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] feb90f16ee7553f93fe3cde1ad521656d23da90ad08b1407ec1c7195daad2be2
[INFO] running `Command { std: "docker" "start" "-a" "feb90f16ee7553f93fe3cde1ad521656d23da90ad08b1407ec1c7195daad2be2", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling piper v0.2.3
[INFO] [stderr]    Compiling futures-lite v2.3.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling event-listener v5.3.1
[INFO] [stderr]    Compiling async-executor v1.12.0
[INFO] [stderr]    Compiling event-listener-strategy v0.5.2
[INFO] [stderr]    Compiling async-lock v3.4.0
[INFO] [stderr]    Compiling async-channel v2.3.1
[INFO] [stderr]    Compiling blocking v1.6.1
[INFO] [stderr]    Compiling async-fs v2.1.2
[INFO] [stderr]    Compiling polling v3.7.2
[INFO] [stderr]    Compiling async-io v2.3.3
[INFO] [stderr]    Compiling async-signal v0.2.8
[INFO] [stderr]    Compiling async-net v2.0.0
[INFO] [stderr]    Compiling async-process v2.2.3
[INFO] [stderr]    Compiling smol v2.0.0
[INFO] [stderr]    Compiling mailboxxy v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.32s
[INFO] running `Command { std: "docker" "inspect" "feb90f16ee7553f93fe3cde1ad521656d23da90ad08b1407ec1c7195daad2be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feb90f16ee7553f93fe3cde1ad521656d23da90ad08b1407ec1c7195daad2be2", kill_on_drop: false }`
[INFO] [stdout] feb90f16ee7553f93fe3cde1ad521656d23da90ad08b1407ec1c7195daad2be2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 557c4b23d2fe95dcf52004bf20b1e48b7e07d1c190abceb7af1e02f6e53fc732
[INFO] running `Command { std: "docker" "start" "-a" "557c4b23d2fe95dcf52004bf20b1e48b7e07d1c190abceb7af1e02f6e53fc732", kill_on_drop: false }`
[INFO] [stderr]    Compiling mailboxxy v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "557c4b23d2fe95dcf52004bf20b1e48b7e07d1c190abceb7af1e02f6e53fc732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557c4b23d2fe95dcf52004bf20b1e48b7e07d1c190abceb7af1e02f6e53fc732", kill_on_drop: false }`
[INFO] [stdout] 557c4b23d2fe95dcf52004bf20b1e48b7e07d1c190abceb7af1e02f6e53fc732
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 55aa616aaf14962a291cac199afe5be75686b0b05dc9ff423177a566ac510fa5
[INFO] running `Command { std: "docker" "start" "-a" "55aa616aaf14962a291cac199afe5be75686b0b05dc9ff423177a566ac510fa5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mailboxxy-f075e21c6c9fba42)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::run_test_thread ... ok
[INFO] [stdout] test run_test_thread ... ok
[INFO] [stdout] test run_test_async ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mailboxxy
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - start_mailbox_direct (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "55aa616aaf14962a291cac199afe5be75686b0b05dc9ff423177a566ac510fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55aa616aaf14962a291cac199afe5be75686b0b05dc9ff423177a566ac510fa5", kill_on_drop: false }`
[INFO] [stdout] 55aa616aaf14962a291cac199afe5be75686b0b05dc9ff423177a566ac510fa5