[INFO] cloning repository https://github.com/uselessgoddess/rust-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uselessgoddess/rust-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuselessgoddess%2Frust-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuselessgoddess%2Frust-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b60f709baa75602d655f0518a78e51e8d65794fb
[INFO] checking uselessgoddess/rust-client against master#1be5c8f90912c446ecbdc405cbc4a89f9acd20fd for pr-93394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuselessgoddess%2Frust-client" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uselessgoddess/rust-client on toolchain 1be5c8f90912c446ecbdc405cbc4a89f9acd20fd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1be5c8f90912c446ecbdc405cbc4a89f9acd20fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uselessgoddess/rust-client
[INFO] finished tweaking git repo https://github.com/uselessgoddess/rust-client
[INFO] tweaked toml for git repo https://github.com/uselessgoddess/rust-client written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/uselessgoddess/rust-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1be5c8f90912c446ecbdc405cbc4a89f9acd20fd" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1be5c8f90912c446ecbdc405cbc4a89f9acd20fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf5e65b31ce57be940dbfe4c1dc0ee9081bf9e2e1335eb4040dc46f12fce262e
[INFO] running `Command { std: "docker" "start" "-a" "bf5e65b31ce57be940dbfe4c1dc0ee9081bf9e2e1335eb4040dc46f12fce262e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf5e65b31ce57be940dbfe4c1dc0ee9081bf9e2e1335eb4040dc46f12fce262e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf5e65b31ce57be940dbfe4c1dc0ee9081bf9e2e1335eb4040dc46f12fce262e", kill_on_drop: false }`
[INFO] [stdout] bf5e65b31ce57be940dbfe4c1dc0ee9081bf9e2e1335eb4040dc46f12fce262e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1be5c8f90912c446ecbdc405cbc4a89f9acd20fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dfbd6b5a59457710f42ded13142760dc5806bb237a913fd23457c4d38299f0f
[INFO] running `Command { std: "docker" "start" "-a" "3dfbd6b5a59457710f42ded13142760dc5806bb237a913fd23457c4d38299f0f", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]    Compiling itoa v1.0.1
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[INFO] [stderr]     Checking rust-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::hint::black_box`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::hint::black_box;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hint::black_box`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::hint::black_box;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/main.rs:148:20
[INFO] [stdout]     |
[INFO] [stdout] 148 |     while let Some(message) = rx.recv().await {
[INFO] [stdout]     |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/main.rs:148:20
[INFO] [stdout]     |
[INFO] [stdout] 148 |     while let Some(message) = rx.recv().await {
[INFO] [stdout]     |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.33s
[INFO] running `Command { std: "docker" "inspect" "3dfbd6b5a59457710f42ded13142760dc5806bb237a913fd23457c4d38299f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dfbd6b5a59457710f42ded13142760dc5806bb237a913fd23457c4d38299f0f", kill_on_drop: false }`
[INFO] [stdout] 3dfbd6b5a59457710f42ded13142760dc5806bb237a913fd23457c4d38299f0f