[INFO] cloning repository https://github.com/k1ut3h/queue-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k1ut3h/queue-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk1ut3h%2Fqueue-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk1ut3h%2Fqueue-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1cba24b26099b793858145ad35317a3d5105091
[INFO] checking k1ut3h/queue-rust against try#5ec4d3b0c83717313176eefa7d71e9d36dc83355 for pr-155501
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk1ut3h%2Fqueue-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/k1ut3h/queue-rust
[INFO] finished tweaking git repo https://github.com/k1ut3h/queue-rust
[INFO] tweaked toml for git repo https://github.com/k1ut3h/queue-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/k1ut3h/queue-rust on toolchain 5ec4d3b0c83717313176eefa7d71e9d36dc83355
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/k1ut3h/queue-rust 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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 147f09670cfceb97fb0c8c3b6a505b10f4421d3fc110d0405f77fd372a1dfd62
[INFO] running `Command { std: "docker" "start" "-a" "147f09670cfceb97fb0c8c3b6a505b10f4421d3fc110d0405f77fd372a1dfd62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "147f09670cfceb97fb0c8c3b6a505b10f4421d3fc110d0405f77fd372a1dfd62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "147f09670cfceb97fb0c8c3b6a505b10f4421d3fc110d0405f77fd372a1dfd62", kill_on_drop: false }`
[INFO] [stdout] 147f09670cfceb97fb0c8c3b6a505b10f4421d3fc110d0405f77fd372a1dfd62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8da7373b2a2aa6227839e0e0129f9ba498cf867129323603412ec1f7d164c239
[INFO] running `Command { std: "docker" "start" "-a" "8da7373b2a2aa6227839e0e0129f9ba498cf867129323603412ec1f7d164c239", kill_on_drop: false }`
[INFO] [stderr]     Checking queue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected token: `}`
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         }
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `}`
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         }
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 19 | /         if let Some(next)=self.next{
[INFO] [stdout] 20 | |             self.
[INFO] [stdout]    | |             ^^^^ expected `()`, found `&mut Queue`
[INFO] [stdout] 21 | |         }
[INFO] [stdout]    | |_________- `if` expressions without `else` arms expect their inner expression to be `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 19 | /         if let Some(next)=self.next{
[INFO] [stdout] 20 | |             self.
[INFO] [stdout]    | |             ^^^^ expected `()`, found `&mut Queue`
[INFO] [stdout] 21 | |         }
[INFO] [stdout]    | |_________- `if` expressions without `else` arms expect their inner expression to be `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `queue` (bin "queue") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `queue` (bin "queue" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8da7373b2a2aa6227839e0e0129f9ba498cf867129323603412ec1f7d164c239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da7373b2a2aa6227839e0e0129f9ba498cf867129323603412ec1f7d164c239", kill_on_drop: false }`
[INFO] [stdout] 8da7373b2a2aa6227839e0e0129f9ba498cf867129323603412ec1f7d164c239