[INFO] cloning repository https://github.com/bkinsey808/rust_composition_over_inheritance
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bkinsey808/rust_composition_over_inheritance" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkinsey808%2Frust_composition_over_inheritance", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkinsey808%2Frust_composition_over_inheritance'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f1e3916fa2606288ba32e6f86daf9edf13177b1
[INFO] checking bkinsey808/rust_composition_over_inheritance against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkinsey808%2Frust_composition_over_inheritance" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bkinsey808/rust_composition_over_inheritance
[INFO] finished tweaking git repo https://github.com/bkinsey808/rust_composition_over_inheritance
[INFO] tweaked toml for git repo https://github.com/bkinsey808/rust_composition_over_inheritance written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bkinsey808/rust_composition_over_inheritance on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bkinsey808/rust_composition_over_inheritance 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7efbbb7d9d23c93e152c95f27dc1dd4baabc3cf5c2b9a002050f64cabca40227
[INFO] running `Command { std: "docker" "start" "-a" "7efbbb7d9d23c93e152c95f27dc1dd4baabc3cf5c2b9a002050f64cabca40227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7efbbb7d9d23c93e152c95f27dc1dd4baabc3cf5c2b9a002050f64cabca40227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7efbbb7d9d23c93e152c95f27dc1dd4baabc3cf5c2b9a002050f64cabca40227", kill_on_drop: false }`
[INFO] [stdout] 7efbbb7d9d23c93e152c95f27dc1dd4baabc3cf5c2b9a002050f64cabca40227
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e5b5306eb9f8eb0fc48850cfda737b2d16f82c031d78a04f8f3905b7afa54a9
[INFO] running `Command { std: "docker" "start" "-a" "3e5b5306eb9f8eb0fc48850cfda737b2d16f82c031d78a04f8f3905b7afa54a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling duplicate v0.3.0
[INFO] [stderr]     Checking rust_composition_over_inheritance v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Cat` is never constructed
[INFO] [stdout]   --> src/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Cat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CleaningRobot` is never constructed
[INFO] [stdout]   --> src/main.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct CleaningRobot {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MurderRobot` is never constructed
[INFO] [stdout]   --> src/main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct MurderRobot {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Barker` is never used
[INFO] [stdout]   --> src/main.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait Barker {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Meower` is never used
[INFO] [stdout]   --> src/main.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | trait Meower {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Cleaner` is never used
[INFO] [stdout]   --> src/main.rs:75:7
[INFO] [stdout]    |
[INFO] [stdout] 75 | trait Cleaner {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Killer` is never used
[INFO] [stdout]   --> src/main.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 | trait Killer {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cat` is never constructed
[INFO] [stdout]   --> src/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Cat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CleaningRobot` is never constructed
[INFO] [stdout]   --> src/main.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct CleaningRobot {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MurderRobot` is never constructed
[INFO] [stdout]   --> src/main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct MurderRobot {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Barker` is never used
[INFO] [stdout]   --> src/main.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait Barker {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Meower` is never used
[INFO] [stdout]   --> src/main.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | trait Meower {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Cleaner` is never used
[INFO] [stdout]   --> src/main.rs:75:7
[INFO] [stdout]    |
[INFO] [stdout] 75 | trait Cleaner {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Killer` is never used
[INFO] [stdout]   --> src/main.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 | trait Killer {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "3e5b5306eb9f8eb0fc48850cfda737b2d16f82c031d78a04f8f3905b7afa54a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e5b5306eb9f8eb0fc48850cfda737b2d16f82c031d78a04f8f3905b7afa54a9", kill_on_drop: false }`
[INFO] [stdout] 3e5b5306eb9f8eb0fc48850cfda737b2d16f82c031d78a04f8f3905b7afa54a9