[INFO] cloning repository https://github.com/alex-griffiths/ai_romania
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alex-griffiths/ai_romania" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falex-griffiths%2Fai_romania", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falex-griffiths%2Fai_romania'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2391356c1e35d3036e476fed794821d41358a06f
[INFO] testing alex-griffiths/ai_romania against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falex-griffiths%2Fai_romania" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alex-griffiths/ai_romania on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alex-griffiths/ai_romania
[INFO] finished tweaking git repo https://github.com/alex-griffiths/ai_romania
[INFO] tweaked toml for git repo https://github.com/alex-griffiths/ai_romania written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/alex-griffiths/ai_romania already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d166e969b5bc5b91f9ebe21e97c29535d3d5706749489f5bc6b7c102cf6bfd9d
[INFO] running `Command { std: "docker" "start" "-a" "d166e969b5bc5b91f9ebe21e97c29535d3d5706749489f5bc6b7c102cf6bfd9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d166e969b5bc5b91f9ebe21e97c29535d3d5706749489f5bc6b7c102cf6bfd9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d166e969b5bc5b91f9ebe21e97c29535d3d5706749489f5bc6b7c102cf6bfd9d", kill_on_drop: false }`
[INFO] [stdout] d166e969b5bc5b91f9ebe21e97c29535d3d5706749489f5bc6b7c102cf6bfd9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c77466b1072f2d94b35c2342190e7218bffea7fe5ad8a41a0c0ba3ec7563ca8
[INFO] running `Command { std: "docker" "start" "-a" "0c77466b1072f2d94b35c2342190e7218bffea7fe5ad8a41a0c0ba3ec7563ca8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling romania v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Walker`
[INFO] [stdout]  --> src/main.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 | use graph::{Graph, NodeIndex, Walker};
[INFO] [stdout]   |                               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `walker`
[INFO] [stdout]   --> src/graph.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn walker(&self, source: NodeIndex) -> Walker {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/graph.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn new(start_idx: NodeIndex, graph: &Graph) -> Walker {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `Command { std: "docker" "inspect" "0c77466b1072f2d94b35c2342190e7218bffea7fe5ad8a41a0c0ba3ec7563ca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c77466b1072f2d94b35c2342190e7218bffea7fe5ad8a41a0c0ba3ec7563ca8", kill_on_drop: false }`
[INFO] [stdout] 0c77466b1072f2d94b35c2342190e7218bffea7fe5ad8a41a0c0ba3ec7563ca8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02a76136b2d36b504e27d44eac4b1efe6b9e9629d693d917d950211ee9259e6d
[INFO] running `Command { std: "docker" "start" "-a" "02a76136b2d36b504e27d44eac4b1efe6b9e9629d693d917d950211ee9259e6d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling romania v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Walker`
[INFO] [stdout]  --> src/main.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 | use graph::{Graph, NodeIndex, Walker};
[INFO] [stdout]   |                               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `walker`
[INFO] [stdout]   --> src/graph.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn walker(&self, source: NodeIndex) -> Walker {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/graph.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn new(start_idx: NodeIndex, graph: &Graph) -> Walker {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.94s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/romania-b45693905353d464)
[INFO] running `Command { std: "docker" "inspect" "02a76136b2d36b504e27d44eac4b1efe6b9e9629d693d917d950211ee9259e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a76136b2d36b504e27d44eac4b1efe6b9e9629d693d917d950211ee9259e6d", kill_on_drop: false }`
[INFO] [stdout] 02a76136b2d36b504e27d44eac4b1efe6b9e9629d693d917d950211ee9259e6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 07edb3c32d8dcfc4061a8b6eaa0c51586dfc620697cdc5318ae345aa4d9aeceb
[INFO] running `Command { std: "docker" "start" "-a" "07edb3c32d8dcfc4061a8b6eaa0c51586dfc620697cdc5318ae345aa4d9aeceb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "07edb3c32d8dcfc4061a8b6eaa0c51586dfc620697cdc5318ae345aa4d9aeceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07edb3c32d8dcfc4061a8b6eaa0c51586dfc620697cdc5318ae345aa4d9aeceb", kill_on_drop: false }`
[INFO] [stdout] 07edb3c32d8dcfc4061a8b6eaa0c51586dfc620697cdc5318ae345aa4d9aeceb