[INFO] fetching crate fixed_len_str 0.3.3...
[INFO] testing fixed_len_str-0.3.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fixed_len_str 0.3.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate fixed_len_str 0.3.3
[INFO] finished tweaking crates.io crate fixed_len_str 0.3.3
[INFO] tweaked toml for crates.io crate fixed_len_str 0.3.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fixed_len_str 0.3.3 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 7 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] [stderr]     Blocking waiting for file lock on package cache
[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] 0580fe1d272282984397b5d537734194659234712776a6515011a52f06fd04ba
[INFO] running `Command { std: "docker" "start" "-a" "0580fe1d272282984397b5d537734194659234712776a6515011a52f06fd04ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0580fe1d272282984397b5d537734194659234712776a6515011a52f06fd04ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0580fe1d272282984397b5d537734194659234712776a6515011a52f06fd04ba", kill_on_drop: false }`
[INFO] [stdout] 0580fe1d272282984397b5d537734194659234712776a6515011a52f06fd04ba
[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] 11168139658aa6f74093500dfd534b7847cdd94b81f5eded672404f5826cc502
[INFO] running `Command { std: "docker" "start" "-a" "11168139658aa6f74093500dfd534b7847cdd94b81f5eded672404f5826cc502", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixed_len_str v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "11168139658aa6f74093500dfd534b7847cdd94b81f5eded672404f5826cc502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11168139658aa6f74093500dfd534b7847cdd94b81f5eded672404f5826cc502", kill_on_drop: false }`
[INFO] [stdout] 11168139658aa6f74093500dfd534b7847cdd94b81f5eded672404f5826cc502
[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] 9b0b4ad078241b814f84a16707b4014b2ccfa6c286d728ed5095042ed1e8229d
[INFO] running `Command { std: "docker" "start" "-a" "9b0b4ad078241b814f84a16707b4014b2ccfa6c286d728ed5095042ed1e8229d", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixed_len_str v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `fixed_str_nz3::Closure`
[INFO] [stdout]  --> tests/a.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use fixed_str_nz3::Closure;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `Closure` in `fixed_str_nz3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/a.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(pattern)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fixed_len_str` (test "a") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9b0b4ad078241b814f84a16707b4014b2ccfa6c286d728ed5095042ed1e8229d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b0b4ad078241b814f84a16707b4014b2ccfa6c286d728ed5095042ed1e8229d", kill_on_drop: false }`
[INFO] [stdout] 9b0b4ad078241b814f84a16707b4014b2ccfa6c286d728ed5095042ed1e8229d
