[INFO] fetching crate fnconcat 0.2.3...
[INFO] testing fnconcat-0.2.3 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate fnconcat 0.2.3 into /workspace/builds/worker-7-tc2/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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fnconcat 0.2.3 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d94a676c26d4b012789156ab34254cad896d752ecee6233f856f9900a014f2ea
[INFO] running `Command { std: "docker" "start" "-a" "d94a676c26d4b012789156ab34254cad896d752ecee6233f856f9900a014f2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d94a676c26d4b012789156ab34254cad896d752ecee6233f856f9900a014f2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d94a676c26d4b012789156ab34254cad896d752ecee6233f856f9900a014f2ea", kill_on_drop: false }`
[INFO] [stdout] d94a676c26d4b012789156ab34254cad896d752ecee6233f856f9900a014f2ea
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87b62d8e78042f199c168e74a6d1f67594d99cd9ab8308b12dee873119430471
[INFO] running `Command { std: "docker" "start" "-a" "87b62d8e78042f199c168e74a6d1f67594d99cd9ab8308b12dee873119430471", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` 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" "87b62d8e78042f199c168e74a6d1f67594d99cd9ab8308b12dee873119430471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b62d8e78042f199c168e74a6d1f67594d99cd9ab8308b12dee873119430471", kill_on_drop: false }`
[INFO] [stdout] 87b62d8e78042f199c168e74a6d1f67594d99cd9ab8308b12dee873119430471