[INFO] cloning repository https://github.com/Venats/advent_of_code_2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Venats/advent_of_code_2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenats%2Fadvent_of_code_2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenats%2Fadvent_of_code_2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 619b0dc892cb95f853fb042d824b9e60852081a0
[INFO] checking Venats/advent_of_code_2018 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenats%2Fadvent_of_code_2018" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Venats/advent_of_code_2018 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Venats/advent_of_code_2018
[INFO] finished tweaking git repo https://github.com/Venats/advent_of_code_2018
[INFO] tweaked toml for git repo https://github.com/Venats/advent_of_code_2018 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Venats/advent_of_code_2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61430bfb6ab713a08469e66b35aa76c0a18f01babde0d1bedaaad76bc3d49033
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "61430bfb6ab713a08469e66b35aa76c0a18f01babde0d1bedaaad76bc3d49033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61430bfb6ab713a08469e66b35aa76c0a18f01babde0d1bedaaad76bc3d49033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61430bfb6ab713a08469e66b35aa76c0a18f01babde0d1bedaaad76bc3d49033", kill_on_drop: false }`
[INFO] [stdout] 61430bfb6ab713a08469e66b35aa76c0a18f01babde0d1bedaaad76bc3d49033
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fce5a87b81142588497e8a363ddeb01335ada652c158bb8594d1af3aaed6f3f8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fce5a87b81142588497e8a363ddeb01335ada652c158bb8594d1af3aaed6f3f8", 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] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking scan_fmt v0.1.3
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking advent_of_code_2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufReader`, `stdin`
[INFO] [stdout]  --> src/lib.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{stdin,BufRead,BufReader};
[INFO] [stdout]   |               ^^^^^         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `stdin`
[INFO] [stdout]  --> src/lib.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{stdin,BufRead,BufReader};
[INFO] [stdout]   |               ^^^^^         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day7.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         for mut task in self.edges.iter_mut() {
[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] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day7.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         for mut task in self.edges.iter_mut() {
[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] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day7.rs:108:25
[INFO] [stdout]     |
[INFO] [stdout] 108 |             if let Some(mut worker) = workers.iter_mut().find(|worker| worker.is_free()){
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day7.rs:108:25
[INFO] [stdout]     |
[INFO] [stdout] 108 |             if let Some(mut worker) = workers.iter_mut().find(|worker| worker.is_free()){
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.82s
[INFO] running `Command { std: "docker" "inspect" "fce5a87b81142588497e8a363ddeb01335ada652c158bb8594d1af3aaed6f3f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fce5a87b81142588497e8a363ddeb01335ada652c158bb8594d1af3aaed6f3f8", kill_on_drop: false }`
[INFO] [stdout] fce5a87b81142588497e8a363ddeb01335ada652c158bb8594d1af3aaed6f3f8