[INFO] fetching crate nest-guard 0.1.0...
[INFO] testing nest-guard-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate nest-guard 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate nest-guard 0.1.0
[INFO] finished tweaking crates.io crate nest-guard 0.1.0
[INFO] tweaked toml for crates.io crate nest-guard 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nest-guard 0.1.0 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 nest-guard 0.1.0 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-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] 56fee10142d2acb98f74fc5468b56ee57b7d82815a3ac7ad2da28c3fde82adfa
[INFO] running `Command { std: "docker" "start" "-a" "56fee10142d2acb98f74fc5468b56ee57b7d82815a3ac7ad2da28c3fde82adfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56fee10142d2acb98f74fc5468b56ee57b7d82815a3ac7ad2da28c3fde82adfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56fee10142d2acb98f74fc5468b56ee57b7d82815a3ac7ad2da28c3fde82adfa", kill_on_drop: false }`
[INFO] [stdout] 56fee10142d2acb98f74fc5468b56ee57b7d82815a3ac7ad2da28c3fde82adfa
[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] 1dc1a54fde3863734951bdfe58b9ea10cb958ac399668d30bea81e8dd8280539
[INFO] running `Command { std: "docker" "start" "-a" "1dc1a54fde3863734951bdfe58b9ea10cb958ac399668d30bea81e8dd8280539", kill_on_drop: false }`
[INFO] [stderr]    Compiling nest-guard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "1dc1a54fde3863734951bdfe58b9ea10cb958ac399668d30bea81e8dd8280539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dc1a54fde3863734951bdfe58b9ea10cb958ac399668d30bea81e8dd8280539", kill_on_drop: false }`
[INFO] [stdout] 1dc1a54fde3863734951bdfe58b9ea10cb958ac399668d30bea81e8dd8280539
[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] cb15e1006d4056fe1e8750dff18a38410c6827dcaac0df2950ab4f51851fd053
[INFO] running `Command { std: "docker" "start" "-a" "cb15e1006d4056fe1e8750dff18a38410c6827dcaac0df2950ab4f51851fd053", kill_on_drop: false }`
[INFO] [stderr]    Compiling nest-guard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "cb15e1006d4056fe1e8750dff18a38410c6827dcaac0df2950ab4f51851fd053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb15e1006d4056fe1e8750dff18a38410c6827dcaac0df2950ab4f51851fd053", kill_on_drop: false }`
[INFO] [stdout] cb15e1006d4056fe1e8750dff18a38410c6827dcaac0df2950ab4f51851fd053
[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] ea1c1ed25eb7c83832e5f5bfa2bfd7739649dc4e224c20c787f1708284254b06
[INFO] running `Command { std: "docker" "start" "-a" "ea1c1ed25eb7c83832e5f5bfa2bfd7739649dc4e224c20c787f1708284254b06", 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/nest_guard-3d165bbad3639009)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test cell::test::test_many_refcell ... ok
[INFO] [stderr]    Doc-tests nest_guard
[INFO] [stdout] test sync::test::test_many_mutex ... ok
[INFO] [stdout] test sync::test::test_many_arc ... ok
[INFO] [stdout] test rc::test::test_many_rc ... ok
[INFO] [stdout] test sync::test::test_many_rwlock ... ok
[INFO] [stdout] test test::test_rc_refcell ... ok
[INFO] [stdout] test test::test_reassign_refcell_stack ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 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" "ea1c1ed25eb7c83832e5f5bfa2bfd7739649dc4e224c20c787f1708284254b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea1c1ed25eb7c83832e5f5bfa2bfd7739649dc4e224c20c787f1708284254b06", kill_on_drop: false }`
[INFO] [stdout] ea1c1ed25eb7c83832e5f5bfa2bfd7739649dc4e224c20c787f1708284254b06