[INFO] cloning repository https://github.com/snicmakino/competitive-programming-ant
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/snicmakino/competitive-programming-ant" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnicmakino%2Fcompetitive-programming-ant", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnicmakino%2Fcompetitive-programming-ant'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de8ad3ffffadb2f2d5150dbfb0f7ca0332c0e90a
[INFO] testing snicmakino/competitive-programming-ant against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnicmakino%2Fcompetitive-programming-ant" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/snicmakino/competitive-programming-ant on toolchain 61223975d46f794466efa832bc7562b9707ecc46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/snicmakino/competitive-programming-ant
[INFO] finished tweaking git repo https://github.com/snicmakino/competitive-programming-ant
[INFO] tweaked toml for git repo https://github.com/snicmakino/competitive-programming-ant written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/snicmakino/competitive-programming-ant 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" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8feb38f0e0fcb133cb8b21357269e9528ac80601db3b2585e8a875cc3587a77d
[INFO] running `Command { std: "docker" "start" "-a" "8feb38f0e0fcb133cb8b21357269e9528ac80601db3b2585e8a875cc3587a77d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8feb38f0e0fcb133cb8b21357269e9528ac80601db3b2585e8a875cc3587a77d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8feb38f0e0fcb133cb8b21357269e9528ac80601db3b2585e8a875cc3587a77d", kill_on_drop: false }`
[INFO] [stdout] 8feb38f0e0fcb133cb8b21357269e9528ac80601db3b2585e8a875cc3587a77d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Copt-level=3" "-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" "+61223975d46f794466efa832bc7562b9707ecc46" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4c8c07ef046e986b2ca70a2ac0887cc7a99646d1ee55ed62b889966fd6f2bfa
[INFO] running `Command { std: "docker" "start" "-a" "f4c8c07ef046e986b2ca70a2ac0887cc7a99646d1ee55ed62b889966fd6f2bfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling competitive-programming-ant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/q2_2_6.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn solve(n: usize, wv: Vec<(i32, i32)>, maxw: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dfs` is never constructed
[INFO] [stdout]  --> src/q2_2_6.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct Dfs {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `dfs` are never used
[INFO] [stdout]   --> src/q2_2_6.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |     impl Dfs {
[INFO] [stdout]    |     -------- associated items in this implementation
[INFO] [stdout] 16 |         pub fn new(n: usize, wv: Vec<(i32, i32)>) -> Dfs {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |         pub fn dfs(&mut self, i: usize, w: i32) -> i32 {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "f4c8c07ef046e986b2ca70a2ac0887cc7a99646d1ee55ed62b889966fd6f2bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c8c07ef046e986b2ca70a2ac0887cc7a99646d1ee55ed62b889966fd6f2bfa", kill_on_drop: false }`
[INFO] [stdout] f4c8c07ef046e986b2ca70a2ac0887cc7a99646d1ee55ed62b889966fd6f2bfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Copt-level=3" "-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" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7eb92c6f4770693004b98920990eb21486d250e33eaf6e18b8c1b401d5910fc4
[INFO] running `Command { std: "docker" "start" "-a" "7eb92c6f4770693004b98920990eb21486d250e33eaf6e18b8c1b401d5910fc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling competitive-programming-ant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `competitive-programming-ant` (bin "competitive-programming-ant" test)
[INFO] running `Command { std: "docker" "inspect" "7eb92c6f4770693004b98920990eb21486d250e33eaf6e18b8c1b401d5910fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eb92c6f4770693004b98920990eb21486d250e33eaf6e18b8c1b401d5910fc4", kill_on_drop: false }`
[INFO] [stdout] 7eb92c6f4770693004b98920990eb21486d250e33eaf6e18b8c1b401d5910fc4