[INFO] cloning repository https://github.com/argumate/patterns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/argumate/patterns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fargumate%2Fpatterns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fargumate%2Fpatterns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84e433b1dcd3ec48d2aed5a9cb30c979890358e0
[INFO] checking argumate/patterns against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fargumate%2Fpatterns" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/argumate/patterns
[INFO] finished tweaking git repo https://github.com/argumate/patterns
[INFO] tweaked toml for git repo https://github.com/argumate/patterns written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/argumate/patterns on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/argumate/patterns 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd27c7c38a65bf95a1037fbc4006951b6aac7a3281634ab161436bc8ddb3fa4a
[INFO] running `Command { std: "docker" "start" "-a" "dd27c7c38a65bf95a1037fbc4006951b6aac7a3281634ab161436bc8ddb3fa4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd27c7c38a65bf95a1037fbc4006951b6aac7a3281634ab161436bc8ddb3fa4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd27c7c38a65bf95a1037fbc4006951b6aac7a3281634ab161436bc8ddb3fa4a", kill_on_drop: false }`
[INFO] [stdout] dd27c7c38a65bf95a1037fbc4006951b6aac7a3281634ab161436bc8ddb3fa4a
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21c2feaffd3f9617dba41d30c071cbbb64a8c3e2151ea992bb8acec38ec4cbc0
[INFO] running `Command { std: "docker" "start" "-a" "21c2feaffd3f9617dba41d30c071cbbb64a8c3e2151ea992bb8acec38ec4cbc0", kill_on_drop: false }`
[INFO] [stderr]     Checking patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `get_edge` and `print_graphviz_digraph` are never used
[INFO] [stdout]   --> src/graph.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Graph {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn get_edge(&self, v: usize, e: usize) -> Option<usize> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn print_graphviz_digraph(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_edge` and `print_graphviz_digraph` are never used
[INFO] [stdout]   --> src/graph.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Graph {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn get_edge(&self, v: usize, e: usize) -> Option<usize> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn print_graphviz_digraph(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "21c2feaffd3f9617dba41d30c071cbbb64a8c3e2151ea992bb8acec38ec4cbc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c2feaffd3f9617dba41d30c071cbbb64a8c3e2151ea992bb8acec38ec4cbc0", kill_on_drop: false }`
[INFO] [stdout] 21c2feaffd3f9617dba41d30c071cbbb64a8c3e2151ea992bb8acec38ec4cbc0