[INFO] fetching crate fnconcat 0.2.3...
[INFO] checking fnconcat-0.2.3 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate fnconcat 0.2.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fnconcat 0.2.3 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6d218c5aacc168def52f6b8d539ca2e9c9696dad1b2279e55ef40c853d0f705
[INFO] running `Command { std: "docker" "start" "-a" "a6d218c5aacc168def52f6b8d539ca2e9c9696dad1b2279e55ef40c853d0f705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6d218c5aacc168def52f6b8d539ca2e9c9696dad1b2279e55ef40c853d0f705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6d218c5aacc168def52f6b8d539ca2e9c9696dad1b2279e55ef40c853d0f705", kill_on_drop: false }`
[INFO] [stdout] a6d218c5aacc168def52f6b8d539ca2e9c9696dad1b2279e55ef40c853d0f705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bdaeb3c670c16fd25188410ef1b71d06f0fbbb40c6e149d80f9a75974e47b9a
[INFO] running `Command { std: "docker" "start" "-a" "6bdaeb3c670c16fd25188410ef1b71d06f0fbbb40c6e149d80f9a75974e47b9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnconcat v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `,`, `@`, `]`, 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 `,`, `@`, `]`, 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] [stdout] error: expected one of `,`, `@`, `]`, 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 `,`, `@`, `]`, 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` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `,`, `@`, `]`, 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 `,`, `@`, `]`, 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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6bdaeb3c670c16fd25188410ef1b71d06f0fbbb40c6e149d80f9a75974e47b9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdaeb3c670c16fd25188410ef1b71d06f0fbbb40c6e149d80f9a75974e47b9a", kill_on_drop: false }`
[INFO] [stdout] 6bdaeb3c670c16fd25188410ef1b71d06f0fbbb40c6e149d80f9a75974e47b9a