[INFO] cloning repository https://github.com/SwapMeetApp/Learning-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SwapMeetApp/Learning-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwapMeetApp%2FLearning-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwapMeetApp%2FLearning-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ec1ce3b20aca4c675c2d438f60f58fc9af7203c
[INFO] checking SwapMeetApp/Learning-Rust against master#65cd843ae06ad00123c131a431ed5304e4cd577a for pr-122077
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwapMeetApp%2FLearning-Rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SwapMeetApp/Learning-Rust on toolchain 65cd843ae06ad00123c131a431ed5304e4cd577a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+65cd843ae06ad00123c131a431ed5304e4cd577a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SwapMeetApp/Learning-Rust
[INFO] finished tweaking git repo https://github.com/SwapMeetApp/Learning-Rust
[INFO] tweaked toml for git repo https://github.com/SwapMeetApp/Learning-Rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SwapMeetApp/Learning-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" "+65cd843ae06ad00123c131a431ed5304e4cd577a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking SwapMeetApp/Learning-Rust against try#e34498b580c936a8f8a419616d9571f03b6c038e for pr-122077
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwapMeetApp%2FLearning-Rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SwapMeetApp/Learning-Rust on toolchain e34498b580c936a8f8a419616d9571f03b6c038e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e34498b580c936a8f8a419616d9571f03b6c038e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SwapMeetApp/Learning-Rust
[INFO] finished tweaking git repo https://github.com/SwapMeetApp/Learning-Rust
[INFO] tweaked toml for git repo https://github.com/SwapMeetApp/Learning-Rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/SwapMeetApp/Learning-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" "+e34498b580c936a8f8a419616d9571f03b6c038e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e34498b580c936a8f8a419616d9571f03b6c038e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e576cda2b58a5c8fb2d447ec1a4be36318c404539cd4b78181bb0e584ed5de5
[INFO] running `Command { std: "docker" "start" "-a" "2e576cda2b58a5c8fb2d447ec1a4be36318c404539cd4b78181bb0e584ed5de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e576cda2b58a5c8fb2d447ec1a4be36318c404539cd4b78181bb0e584ed5de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e576cda2b58a5c8fb2d447ec1a4be36318c404539cd4b78181bb0e584ed5de5", kill_on_drop: false }`
[INFO] [stdout] 2e576cda2b58a5c8fb2d447ec1a4be36318c404539cd4b78181bb0e584ed5de5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e34498b580c936a8f8a419616d9571f03b6c038e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa735ffa0c36797197c6f7927d9cfff914ba97df5f078fc76cca3f500c3a5c3e
[INFO] running `Command { std: "docker" "start" "-a" "fa735ffa0c36797197c6f7927d9cfff914ba97df5f078fc76cca3f500c3a5c3e", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: mismatched closing delimiter: `)`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |           ^ unclosed delimiter
[INFO] [stdout] 4 |     println!("{}", format_fsm(fsm_traffic()));
[INFO] [stdout] 5 |     println!("{:#?}", tree_pick(test_tree(), test_directions())));
[INFO] [stdout]   |                                                                 ^ mismatched closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: mismatched closing delimiter: `)`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |           ^ unclosed delimiter
[INFO] [stdout] 4 |     println!("{}", format_fsm(fsm_traffic()));
[INFO] [stdout] 5 |     println!("{:#?}", tree_pick(test_tree(), test_directions())));
[INFO] [stdout]   |                                                                 ^ mismatched closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 5 |     println!("{:#?}", tree_pick(test_tree(), test_directions())));
[INFO] [stdout]   |                                                                 - missing open `(` for this delimiter
[INFO] [stdout] 6 | }
[INFO] [stdout]   | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 5 |     println!("{:#?}", tree_pick(test_tree(), test_directions())));
[INFO] [stdout]   |                                                                 - missing open `(` for this delimiter
[INFO] [stdout] 6 | }
[INFO] [stdout]   | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_learning` (bin "rust_learning" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust_learning` (bin "rust_learning") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fa735ffa0c36797197c6f7927d9cfff914ba97df5f078fc76cca3f500c3a5c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa735ffa0c36797197c6f7927d9cfff914ba97df5f078fc76cca3f500c3a5c3e", kill_on_drop: false }`
[INFO] [stdout] fa735ffa0c36797197c6f7927d9cfff914ba97df5f078fc76cca3f500c3a5c3e