[INFO] fetching crate ecow 0.2.6...
[INFO] testing ecow-0.2.6 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ecow 0.2.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ecow 0.2.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ecow 0.2.6
[INFO] tweaked toml for crates.io crate ecow 0.2.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ecow 0.2.6 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 ecow 0.2.6 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c00a49b073ef954382998db1e0e3ad54868f73bd9521ca027256dd83cfdf018a
[INFO] running `Command { std: "docker" "start" "-a" "c00a49b073ef954382998db1e0e3ad54868f73bd9521ca027256dd83cfdf018a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c00a49b073ef954382998db1e0e3ad54868f73bd9521ca027256dd83cfdf018a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c00a49b073ef954382998db1e0e3ad54868f73bd9521ca027256dd83cfdf018a", kill_on_drop: false }`
[INFO] [stdout] c00a49b073ef954382998db1e0e3ad54868f73bd9521ca027256dd83cfdf018a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 573c3cec153f70a49954ab193553ffb87d6e11e38e887eb6c3c3eb664489d997
[INFO] running `Command { std: "docker" "start" "-a" "573c3cec153f70a49954ab193553ffb87d6e11e38e887eb6c3c3eb664489d997", kill_on_drop: false }`
[INFO] [stderr]    Compiling ecow v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "573c3cec153f70a49954ab193553ffb87d6e11e38e887eb6c3c3eb664489d997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "573c3cec153f70a49954ab193553ffb87d6e11e38e887eb6c3c3eb664489d997", kill_on_drop: false }`
[INFO] [stdout] 573c3cec153f70a49954ab193553ffb87d6e11e38e887eb6c3c3eb664489d997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e0a17b10c5b2c05dc01923ff75d07ed23f55a546d2321395b8980bc7b502dce2
[INFO] running `Command { std: "docker" "start" "-a" "e0a17b10c5b2c05dc01923ff75d07ed23f55a546d2321395b8980bc7b502dce2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ecow v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "e0a17b10c5b2c05dc01923ff75d07ed23f55a546d2321395b8980bc7b502dce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0a17b10c5b2c05dc01923ff75d07ed23f55a546d2321395b8980bc7b502dce2", kill_on_drop: false }`
[INFO] [stdout] e0a17b10c5b2c05dc01923ff75d07ed23f55a546d2321395b8980bc7b502dce2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b9153b1ae769c4e2d6b64ca903b47ce25422490e9a0ae2fe8bc9bd3a3086ed9b
[INFO] running `Command { std: "docker" "start" "-a" "b9153b1ae769c4e2d6b64ca903b47ce25422490e9a0ae2fe8bc9bd3a3086ed9b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ecow-b8226cd23c1a7547)
[INFO] [stderr]      Running tests/loom.rs (/opt/rustwide/target/debug/deps/loom-2ba32e9590a069ad)
[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/tests.rs (/opt/rustwide/target/debug/deps/tests-a539a943b11e9ae6)
[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] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test test_array_from_vec ... ok
[INFO] [stdout] test test_str_add ... ok
[INFO] [stdout] test test_str_case ... ok
[INFO] [stdout] test test_str_clear ... ok
[INFO] [stdout] test test_str_complex ... ok
[INFO] [stdout] test test_str_extend ... ok
[INFO] [stdout] test test_str_index ... ok
[INFO] [stdout] test test_str_inline_okay ... ok
[INFO] [stdout] test test_str_new ... ok
[INFO] [stdout] test test_str_push ... ok
[INFO] [stdout] test test_from_vec_rc ... ok
[INFO] [stdout] test test_vec_extend ... ok
[INFO] [stdout] test test_vec_huge_alignment ... ok
[INFO] [stdout] test test_vec_insert ... ok
[INFO] [stdout] test test_vec_into_iter ... ok
[INFO] [stdout] test test_vec_macro ... ok
[INFO] [stdout] test test_str_repeat ... ok
[INFO] [stdout] test test_str_construction ... ok
[INFO] [stdout] test test_str_pop ... ok
[INFO] [stdout] test test_vec_make_mut ... ok
[INFO] [stdout] test test_vec_push ... ok
[INFO] [stdout] test test_vec_remove ... ok
[INFO] [stdout] test test_vec_truncate ... ok
[INFO] [stdout] test test_vec_with_capacity ... ok
[INFO] [stdout] test test_mem_size ... ok
[INFO] [stdout] test test_vec_zst ... ok
[INFO] [stderr]      Running tests/ub_guards.rs (/opt/rustwide/target/debug/deps/ub_guards-fb6825a67fa4dd5e)
[INFO] [stdout] test test_vec_empty ... ok
[INFO] [stdout] test test_vec_pop ... ok
[INFO] [stdout] test test_vec_construction ... ok
[INFO] [stdout] test test_str_inline_capacity_exceeded - should panic ... ok
[INFO] [stdout] test test_vec_clear_drop_panic - should panic ... ok
[INFO] [stdout] test test_vec_drop_panic - should panic ... ok
[INFO] [stdout] test test_vec_remove_fail - should panic ... ok
[INFO] [stdout] test test_vec_with_capacity_fail - should panic ... ok
[INFO] [stdout] test test_vec_insert_fail - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test wacky_size_hint_is_fine ... ok
[INFO] [stdout] test small_size_hint_is_fine ... ok
[INFO] [stderr]    Doc-tests ecow
[INFO] [stdout] test panicky_iterator_unwinds_correctly - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - ReadmeDoctests (line 77) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] test src/string.rs - string::eco_format (line 17) ... ok
[INFO] [stdout] test src/vec.rs - vec::eco_vec (line 20) ... ok
[INFO] [stdout] test src/string.rs - string::EcoString (line 39) ... ok
[INFO] [stdout] test src/vec.rs - vec::EcoVec (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b9153b1ae769c4e2d6b64ca903b47ce25422490e9a0ae2fe8bc9bd3a3086ed9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9153b1ae769c4e2d6b64ca903b47ce25422490e9a0ae2fe8bc9bd3a3086ed9b", kill_on_drop: false }`
[INFO] [stdout] b9153b1ae769c4e2d6b64ca903b47ce25422490e9a0ae2fe8bc9bd3a3086ed9b