[INFO] fetching crate fnconcat 0.2.3...
[INFO] testing fnconcat-0.2.3 against 1.90.0 for beta-1.91-3
[INFO] extracting crate fnconcat 0.2.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate fnconcat 0.2.3
[INFO] finished tweaking crates.io crate fnconcat 0.2.3
[INFO] tweaked toml for crates.io crate fnconcat 0.2.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fnconcat 0.2.3 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused manifest key: lib.plugin
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 768bcb019bc6ec7df8d1d69fd8210f663c81d4e0d0830a367d32085114108db6
[INFO] running `Command { std: "docker" "start" "-a" "768bcb019bc6ec7df8d1d69fd8210f663c81d4e0d0830a367d32085114108db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "768bcb019bc6ec7df8d1d69fd8210f663c81d4e0d0830a367d32085114108db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "768bcb019bc6ec7df8d1d69fd8210f663c81d4e0d0830a367d32085114108db6", kill_on_drop: false }`
[INFO] [stdout] 768bcb019bc6ec7df8d1d69fd8210f663c81d4e0d0830a367d32085114108db6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 536facc3723e8125a58b0d1d0b3c9e35670e22be9d9a9c32c5701a07c7509545
[INFO] running `Command { std: "docker" "start" "-a" "536facc3723e8125a58b0d1d0b3c9e35670e22be9d9a9c32c5701a07c7509545", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused manifest key: lib.plugin
[INFO] [stderr]    Compiling fnconcat v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `,`, `@`, `]`, `if`, or `|`, found `..`
[INFO] [stdout]    --> src/lib.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |               ref rest..] if delim.delim == token::DelimToken::Bracket => {
[INFO] [stdout]     |                       ^^ expected one of `,`, `@`, `]`, `if`, or `|`
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to bind the contents of the rest of the array pattern into `rest`, use `@`
[INFO] [stdout]     |
[INFO] [stdout] 102 |               ref rest @ ..] if delim.delim == token::DelimToken::Bracket => {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fnconcat` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "536facc3723e8125a58b0d1d0b3c9e35670e22be9d9a9c32c5701a07c7509545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536facc3723e8125a58b0d1d0b3c9e35670e22be9d9a9c32c5701a07c7509545", kill_on_drop: false }`
[INFO] [stdout] 536facc3723e8125a58b0d1d0b3c9e35670e22be9d9a9c32c5701a07c7509545