[INFO] cloning repository https://github.com/davisuga/maximum-number-of-balloons-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davisuga/maximum-number-of-balloons-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavisuga%2Fmaximum-number-of-balloons-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavisuga%2Fmaximum-number-of-balloons-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28cc40b29c6245eb3a042840052edb73820d22e1
[INFO] checking davisuga/maximum-number-of-balloons-rs against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavisuga%2Fmaximum-number-of-balloons-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davisuga/maximum-number-of-balloons-rs on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davisuga/maximum-number-of-balloons-rs
[INFO] finished tweaking git repo https://github.com/davisuga/maximum-number-of-balloons-rs
[INFO] tweaked toml for git repo https://github.com/davisuga/maximum-number-of-balloons-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/davisuga/maximum-number-of-balloons-rs 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "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 davisuga/maximum-number-of-balloons-rs against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavisuga%2Fmaximum-number-of-balloons-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davisuga/maximum-number-of-balloons-rs on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davisuga/maximum-number-of-balloons-rs
[INFO] finished tweaking git repo https://github.com/davisuga/maximum-number-of-balloons-rs
[INFO] tweaked toml for git repo https://github.com/davisuga/maximum-number-of-balloons-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/davisuga/maximum-number-of-balloons-rs 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" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking davisuga/maximum-number-of-balloons-rs against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavisuga%2Fmaximum-number-of-balloons-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davisuga/maximum-number-of-balloons-rs on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davisuga/maximum-number-of-balloons-rs
[INFO] finished tweaking git repo https://github.com/davisuga/maximum-number-of-balloons-rs
[INFO] tweaked toml for git repo https://github.com/davisuga/maximum-number-of-balloons-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/davisuga/maximum-number-of-balloons-rs 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" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 053e10c042d5adc0425719e37f2315f3b4f7c8bffda496b1f6223f73be87e1d0
[INFO] running `Command { std: "docker" "start" "-a" "053e10c042d5adc0425719e37f2315f3b4f7c8bffda496b1f6223f73be87e1d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "053e10c042d5adc0425719e37f2315f3b4f7c8bffda496b1f6223f73be87e1d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "053e10c042d5adc0425719e37f2315f3b4f7c8bffda496b1f6223f73be87e1d0", kill_on_drop: false }`
[INFO] [stdout] 053e10c042d5adc0425719e37f2315f3b4f7c8bffda496b1f6223f73be87e1d0
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f626779c0704270e8667716e680604e2f8f3da29c6aa5145478acdc6224e7b48
[INFO] running `Command { std: "docker" "start" "-a" "f626779c0704270e8667716e680604e2f8f3da29c6aa5145478acdc6224e7b48", kill_on_drop: false }`
[INFO] [stderr]     Checking maximum-number-of-balloons v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `Solution` in this scope
[INFO] [stdout]   --> src/main.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Solution {
[INFO] [stdout]    |      ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Solution` in this scope
[INFO] [stdout]   --> src/main.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Solution {
[INFO] [stdout]    |      ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `maximum_number_of_balloons`
[INFO] [stdout]   --> src/main.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 42 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_words`
[INFO] [stdout]   --> src/main.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_words = 0;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_words`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_words`
[INFO] [stdout]   --> src/main.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_words = 0;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_words`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_words = 0;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_words = 0;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `maximum-number-of-balloons` (bin "maximum-number-of-balloons") due to 3 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `maximum-number-of-balloons` (bin "maximum-number-of-balloons" test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f626779c0704270e8667716e680604e2f8f3da29c6aa5145478acdc6224e7b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f626779c0704270e8667716e680604e2f8f3da29c6aa5145478acdc6224e7b48", kill_on_drop: false }`
[INFO] [stdout] f626779c0704270e8667716e680604e2f8f3da29c6aa5145478acdc6224e7b48
