[INFO] cloning repository https://github.com/anjing0524/matching-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anjing0524/matching-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanjing0524%2Fmatching-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanjing0524%2Fmatching-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b41915b5a3b700136829c2de97c060c5b179c4fe
[INFO] checking anjing0524/matching-engine/b41915b5a3b700136829c2de97c060c5b179c4fe against master#217cb73577ed6f30a2005dd75bab01d23ec4cd60 for pr-148939
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanjing0524%2Fmatching-engine" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/anjing0524/matching-engine
[INFO] finished tweaking git repo https://github.com/anjing0524/matching-engine
[INFO] tweaked toml for git repo https://github.com/anjing0524/matching-engine written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/anjing0524/matching-engine on toolchain 217cb73577ed6f30a2005dd75bab01d23ec4cd60
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/anjing0524/matching-engine 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" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opentelemetry v0.22.0
[INFO] [stderr]   Downloaded tikv-jemallocator v0.5.4
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6b221ec09aab9bcdd7e11b7273815f09e3327b9c12d7a96cf933c15a7f55bb3
[INFO] running `Command { std: "docker" "start" "-a" "a6b221ec09aab9bcdd7e11b7273815f09e3327b9c12d7a96cf933c15a7f55bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6b221ec09aab9bcdd7e11b7273815f09e3327b9c12d7a96cf933c15a7f55bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6b221ec09aab9bcdd7e11b7273815f09e3327b9c12d7a96cf933c15a7f55bb3", kill_on_drop: false }`
[INFO] [stdout] a6b221ec09aab9bcdd7e11b7273815f09e3327b9c12d7a96cf933c15a7f55bb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59033b98e2d89860c150850b1531963c161f096d9d5f2371a951def7681b412f
[INFO] running `Command { std: "docker" "start" "-a" "59033b98e2d89860c150850b1531963c161f096d9d5f2371a951def7681b412f", kill_on_drop: false }`
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[INFO] [stderr]     Checking tikv-jemallocator v0.5.4
[INFO] [stderr]     Checking matching-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/infrastructure/network/mod.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             BackendType::Tokio => {
[INFO] [stdout]     |             ------------------ matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 137 |             _ => {
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/infrastructure/network/mod.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             BackendType::Tokio => {
[INFO] [stdout]     |             ------------------ matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 137 |             _ => {
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "59033b98e2d89860c150850b1531963c161f096d9d5f2371a951def7681b412f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59033b98e2d89860c150850b1531963c161f096d9d5f2371a951def7681b412f", kill_on_drop: false }`
[INFO] [stdout] 59033b98e2d89860c150850b1531963c161f096d9d5f2371a951def7681b412f