[INFO] fetching crate exit-stack 0.1.0...
[INFO] testing exit-stack-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate exit-stack 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate exit-stack 0.1.0
[INFO] finished tweaking crates.io crate exit-stack 0.1.0
[INFO] tweaked toml for crates.io crate exit-stack 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate exit-stack 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] 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 3 packages to latest compatible versions
[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] 76b932f960c6bf73922f32b1e0c747ab7e10b949810badb7aa4244199ae947a1
[INFO] running `Command { std: "docker" "start" "-a" "76b932f960c6bf73922f32b1e0c747ab7e10b949810badb7aa4244199ae947a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76b932f960c6bf73922f32b1e0c747ab7e10b949810badb7aa4244199ae947a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b932f960c6bf73922f32b1e0c747ab7e10b949810badb7aa4244199ae947a1", kill_on_drop: false }`
[INFO] [stdout] 76b932f960c6bf73922f32b1e0c747ab7e10b949810badb7aa4244199ae947a1
[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] eb2b869133ef81c1f08a7570d9b35888f0dcabfc548eed42b9b4f6bf6c90b999
[INFO] running `Command { std: "docker" "start" "-a" "eb2b869133ef81c1f08a7570d9b35888f0dcabfc548eed42b9b4f6bf6c90b999", kill_on_drop: false }`
[INFO] [stderr]    Compiling alloc-traits v0.1.1
[INFO] [stderr]    Compiling static-alloc v0.2.6
[INFO] [stderr]    Compiling exit-stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "eb2b869133ef81c1f08a7570d9b35888f0dcabfc548eed42b9b4f6bf6c90b999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb2b869133ef81c1f08a7570d9b35888f0dcabfc548eed42b9b4f6bf6c90b999", kill_on_drop: false }`
[INFO] [stdout] eb2b869133ef81c1f08a7570d9b35888f0dcabfc548eed42b9b4f6bf6c90b999
[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] 65940d6a426d2e23b31499a002452e75a2f7a7745f736934697bd14b1c2c2c3b
[INFO] running `Command { std: "docker" "start" "-a" "65940d6a426d2e23b31499a002452e75a2f7a7745f736934697bd14b1c2c2c3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling exit-stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/stackful.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     struct Large([u64; 32]);
[INFO] [stdout]    |            ----- ^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "65940d6a426d2e23b31499a002452e75a2f7a7745f736934697bd14b1c2c2c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65940d6a426d2e23b31499a002452e75a2f7a7745f736934697bd14b1c2c2c3b", kill_on_drop: false }`
[INFO] [stdout] 65940d6a426d2e23b31499a002452e75a2f7a7745f736934697bd14b1c2c2c3b
[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] 12983d818a4fc747dbd0424b5ed64ecf90fc370bf9821b6553ca611d2e026110
[INFO] running `Command { std: "docker" "start" "-a" "12983d818a4fc747dbd0424b5ed64ecf90fc370bf9821b6553ca611d2e026110", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> tests/stackful.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |     struct Large([u64; 32]);
[INFO] [stderr]    |            ----- ^^^^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `exit-stack` (test "stackful") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/exit_stack-aa1631308c97b9f0)
[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]      Running tests/stackful.rs (/opt/rustwide/target/debug/deps/stackful-a73dcdaf71836f8a)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test set_drops_correctly ... ok
[INFO] [stdout] test run_with_a_stack ... ok
[INFO] [stdout] test set_with_various_sizes ... ok
[INFO] [stdout] test run_with_a_heap_stack ... 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] [stderr]    Doc-tests exit_stack
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - ExitStack<Mem>::set (line 131) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "12983d818a4fc747dbd0424b5ed64ecf90fc370bf9821b6553ca611d2e026110", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12983d818a4fc747dbd0424b5ed64ecf90fc370bf9821b6553ca611d2e026110", kill_on_drop: false }`
[INFO] [stdout] 12983d818a4fc747dbd0424b5ed64ecf90fc370bf9821b6553ca611d2e026110