[INFO] cloning repository https://github.com/Grompiler/elm-like-syntax-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Grompiler/elm-like-syntax-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrompiler%2Felm-like-syntax-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrompiler%2Felm-like-syntax-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 802830b6222656794584952645dfe91b8fb760a3
[INFO] checking Grompiler/elm-like-syntax-in-rust against master#94b72d6bebbddb5d17860914c4544f37365e988c for pr-122789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrompiler%2Felm-like-syntax-in-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Grompiler/elm-like-syntax-in-rust on toolchain 94b72d6bebbddb5d17860914c4544f37365e988c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Grompiler/elm-like-syntax-in-rust
[INFO] finished tweaking git repo https://github.com/Grompiler/elm-like-syntax-in-rust
[INFO] tweaked toml for git repo https://github.com/Grompiler/elm-like-syntax-in-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Grompiler/elm-like-syntax-in-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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "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 Grompiler/elm-like-syntax-in-rust against try#cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc for pr-122789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrompiler%2Felm-like-syntax-in-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Grompiler/elm-like-syntax-in-rust on toolchain cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Grompiler/elm-like-syntax-in-rust
[INFO] finished tweaking git repo https://github.com/Grompiler/elm-like-syntax-in-rust
[INFO] tweaked toml for git repo https://github.com/Grompiler/elm-like-syntax-in-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Grompiler/elm-like-syntax-in-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" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95096e74c66ec871d2a3e3959812e92f37d60a86c8f25ffecd5538f037f2d7be
[INFO] running `Command { std: "docker" "start" "-a" "95096e74c66ec871d2a3e3959812e92f37d60a86c8f25ffecd5538f037f2d7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95096e74c66ec871d2a3e3959812e92f37d60a86c8f25ffecd5538f037f2d7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95096e74c66ec871d2a3e3959812e92f37d60a86c8f25ffecd5538f037f2d7be", kill_on_drop: false }`
[INFO] [stdout] 95096e74c66ec871d2a3e3959812e92f37d60a86c8f25ffecd5538f037f2d7be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0cc6e84f589d1905ca669057a2cfb54ec2d2ce7a9bf15bc7e89f661d0f3bdbf
[INFO] running `Command { std: "docker" "start" "-a" "f0cc6e84f589d1905ca669057a2cfb54ec2d2ce7a9bf15bc7e89f661d0f3bdbf", kill_on_drop: false }`
[INFO] [stderr]     Checking functionnal_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |             main a =
[INFO] [stdout]    |                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: `a` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/main.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |           fn $fn_ty($param_name: $param_type) -> $return_type {
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 | /         elm!(
[INFO] [stdout] 69 | |             main: i32 -> i32
[INFO] [stdout] 70 | |             main a =
[INFO] [stdout] 71 | |                 42
[INFO] [stdout] 72 | |         );
[INFO] [stdout]    | |_________- in this macro invocation
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `elm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/main.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             main: i32
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `elm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/main.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             add: i32 -> i32 -> i32
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `elm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "f0cc6e84f589d1905ca669057a2cfb54ec2d2ce7a9bf15bc7e89f661d0f3bdbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0cc6e84f589d1905ca669057a2cfb54ec2d2ce7a9bf15bc7e89f661d0f3bdbf", kill_on_drop: false }`
[INFO] [stdout] f0cc6e84f589d1905ca669057a2cfb54ec2d2ce7a9bf15bc7e89f661d0f3bdbf