[INFO] fetching crate stacker 0.1.21...
[INFO] testing stacker-0.1.21 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate stacker 0.1.21 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate stacker 0.1.21
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate stacker 0.1.21
[INFO] tweaked toml for crates.io crate stacker 0.1.21 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stacker 0.1.21 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 stacker 0.1.21 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 062798de6b410b700f7417c4145b5283481b49ea8e62d53bde865ecb8da2e5db
[INFO] running `Command { std: "docker" "start" "-a" "062798de6b410b700f7417c4145b5283481b49ea8e62d53bde865ecb8da2e5db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "062798de6b410b700f7417c4145b5283481b49ea8e62d53bde865ecb8da2e5db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "062798de6b410b700f7417c4145b5283481b49ea8e62d53bde865ecb8da2e5db", kill_on_drop: false }`
[INFO] [stdout] 062798de6b410b700f7417c4145b5283481b49ea8e62d53bde865ecb8da2e5db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] dceccdb2140021db2d50106ddab08c57d3f0f5cec98df4888eafbcb44ca2b481
[INFO] running `Command { std: "docker" "start" "-a" "dceccdb2140021db2d50106ddab08c57d3f0f5cec98df4888eafbcb44ca2b481", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.20
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling psm v0.1.26
[INFO] [stderr]    Compiling stacker v0.1.21 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.99s
[INFO] running `Command { std: "docker" "inspect" "dceccdb2140021db2d50106ddab08c57d3f0f5cec98df4888eafbcb44ca2b481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dceccdb2140021db2d50106ddab08c57d3f0f5cec98df4888eafbcb44ca2b481", kill_on_drop: false }`
[INFO] [stdout] dceccdb2140021db2d50106ddab08c57d3f0f5cec98df4888eafbcb44ca2b481
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fc41da27ac646362f01a3e2c0d293bdd4fa41651a4775363af77e1f79fc69fe2
[INFO] running `Command { std: "docker" "start" "-a" "fc41da27ac646362f01a3e2c0d293bdd4fa41651a4775363af77e1f79fc69fe2", kill_on_drop: false }`
[INFO] [stderr]    Compiling stacker v0.1.21 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "fc41da27ac646362f01a3e2c0d293bdd4fa41651a4775363af77e1f79fc69fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc41da27ac646362f01a3e2c0d293bdd4fa41651a4775363af77e1f79fc69fe2", kill_on_drop: false }`
[INFO] [stdout] fc41da27ac646362f01a3e2c0d293bdd4fa41651a4775363af77e1f79fc69fe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6435a4bde0a88d7d7f611d4956c015e08e73437a6111b001865d9f8e1b8e44a5
[INFO] running `Command { std: "docker" "start" "-a" "6435a4bde0a88d7d7f611d4956c015e08e73437a6111b001865d9f8e1b8e44a5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running tests/simple.rs (/opt/rustwide/target/debug/deps/simple-0d4d1ab8af8e6d50)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test foo ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.96s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/smoke.rs (/opt/rustwide/target/debug/deps/smoke-d07998114626fa5e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test catch_panic_leaf ... ok
[INFO] [stdout] test catch_panic_inside ... ok
[INFO] [stdout] test catch_panic ... ok
[INFO] [stdout] test deep ... ok
[INFO] [stdout] test panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6435a4bde0a88d7d7f611d4956c015e08e73437a6111b001865d9f8e1b8e44a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6435a4bde0a88d7d7f611d4956c015e08e73437a6111b001865d9f8e1b8e44a5", kill_on_drop: false }`
[INFO] [stdout] 6435a4bde0a88d7d7f611d4956c015e08e73437a6111b001865d9f8e1b8e44a5