[INFO] fetching crate mstr 0.1.5...
[INFO] testing mstr-0.1.5 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mstr 0.1.5 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mstr 0.1.5
[INFO] finished tweaking crates.io crate mstr 0.1.5
[INFO] tweaked toml for crates.io crate mstr 0.1.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mstr 0.1.5 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 mstr 0.1.5 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f20713705e052a51b136b8592c2a7a166d6caa3213dd99192e65790ace5f7164
[INFO] running `Command { std: "docker" "start" "-a" "f20713705e052a51b136b8592c2a7a166d6caa3213dd99192e65790ace5f7164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f20713705e052a51b136b8592c2a7a166d6caa3213dd99192e65790ace5f7164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20713705e052a51b136b8592c2a7a166d6caa3213dd99192e65790ace5f7164", kill_on_drop: false }`
[INFO] [stdout] f20713705e052a51b136b8592c2a7a166d6caa3213dd99192e65790ace5f7164
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] be93d3130f1562c72e3e88add82aab4144864d30ea4af4d28181938fb4def689
[INFO] running `Command { std: "docker" "start" "-a" "be93d3130f1562c72e3e88add82aab4144864d30ea4af4d28181938fb4def689", kill_on_drop: false }`
[INFO] [stderr]    Compiling mstr v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "be93d3130f1562c72e3e88add82aab4144864d30ea4af4d28181938fb4def689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be93d3130f1562c72e3e88add82aab4144864d30ea4af4d28181938fb4def689", kill_on_drop: false }`
[INFO] [stdout] be93d3130f1562c72e3e88add82aab4144864d30ea4af4d28181938fb4def689
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 528af4201c26f3d1480eee4e2658e47bdd5665b74ae19d2a87d245039f1d124c
[INFO] running `Command { std: "docker" "start" "-a" "528af4201c26f3d1480eee4e2658e47bdd5665b74ae19d2a87d245039f1d124c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling serde_test v1.0.177
[INFO] [stderr]    Compiling mstr v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.21s
[INFO] running `Command { std: "docker" "inspect" "528af4201c26f3d1480eee4e2658e47bdd5665b74ae19d2a87d245039f1d124c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528af4201c26f3d1480eee4e2658e47bdd5665b74ae19d2a87d245039f1d124c", kill_on_drop: false }`
[INFO] [stdout] 528af4201c26f3d1480eee4e2658e47bdd5665b74ae19d2a87d245039f1d124c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] cb0816276e7ff0603179394747c594eb44474056a25532504d5d578bb8ed9556
[INFO] running `Command { std: "docker" "start" "-a" "cb0816276e7ff0603179394747c594eb44474056a25532504d5d578bb8ed9556", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mstr-5bc289fb73d9476d)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test tests::as_borrowed ... ok
[INFO] [stderr]    Doc-tests mstr
[INFO] [stdout] test tests::assert_send_sync ... ok
[INFO] [stdout] test tests::borrowed_stays_borrowed ... ok
[INFO] [stdout] test tests::correct_repr ... ok
[INFO] [stdout] test tests::covariant_lt ... ok
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] test tests::into_cow ... ok
[INFO] [stdout] test tests::len ... ok
[INFO] [stdout] test tests::owned_clone ... ok
[INFO] [stdout] test tests::roundtrip_string_ptr ... ok
[INFO] [stdout] test tests::static_lt ... ok
[INFO] [stdout] test tests::owned_empty ... ok
[INFO] [stdout] test tests::roundtrip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test src/lib.rs - MStr<'a>::into_boxed (line 270) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'_>::clone (line 482) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::as_borrowed (line 363) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::as_borrowed (line 372) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'_>::default (line 517) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::as_str (line 192) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::is_borrowed (line 343) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::into_boxed (line 261) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::as_ptr (line 429) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::into_cow (line 293) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'_>::clone (line 473) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::is_empty (line 407) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::into_string (line 228) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::as_bytes (line 208) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::into_string (line 237) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::as_str_ptr (line 450) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::is_owned (line 323) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::len (line 391) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::new_cow (line 142) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::new_owned (line 98) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::new_cow (line 156) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::new_cow (line 130) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::new_owned (line 84) ... ok
[INFO] [stdout] test src/lib.rs - MStr<'a>::new_borrowed (line 54) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.14s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb0816276e7ff0603179394747c594eb44474056a25532504d5d578bb8ed9556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb0816276e7ff0603179394747c594eb44474056a25532504d5d578bb8ed9556", kill_on_drop: false }`
[INFO] [stdout] cb0816276e7ff0603179394747c594eb44474056a25532504d5d578bb8ed9556