[INFO] cloning repository https://github.com/spec-tacles/rustacles
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spec-tacles/rustacles" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspec-tacles%2Frustacles", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspec-tacles%2Frustacles'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c58c9409018738694ea2e55c43099fba26eb5921
[INFO] checking spec-tacles/rustacles against master#43d9f3859e0204e764161ee085a360274b5f3e9a for pr-97346
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspec-tacles%2Frustacles" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spec-tacles/rustacles on toolchain 43d9f3859e0204e764161ee085a360274b5f3e9a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spec-tacles/rustacles
[INFO] finished tweaking git repo https://github.com/spec-tacles/rustacles
[INFO] tweaked toml for git repo https://github.com/spec-tacles/rustacles written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/spec-tacles/rustacles already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85bb1b14b1ed761a8c483fc68edbe83139966cf6cdf95eff61293db6a3045780
[INFO] running `Command { std: "docker" "start" "-a" "85bb1b14b1ed761a8c483fc68edbe83139966cf6cdf95eff61293db6a3045780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85bb1b14b1ed761a8c483fc68edbe83139966cf6cdf95eff61293db6a3045780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85bb1b14b1ed761a8c483fc68edbe83139966cf6cdf95eff61293db6a3045780", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "5bc9fc714a6d058df9a306b31495cf7b0912de0de3248006dcb151ecbbeaa60f", kill_on_drop: false }`
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[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking rustacles-brokers v0.2.0 (/opt/rustwide/workdir/brokers)
[INFO] [stdout] warning: function is never used: `repeat_fn`
[INFO] [stdout]  --> brokers/src/util/stream.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn repeat_fn<F, R, O>(mut func: F) -> impl Stream<Item = O>
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repeat_fn`
[INFO] [stdout]  --> brokers/src/util/stream.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn repeat_fn<F, R, O>(mut func: F) -> impl Stream<Item = O>
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking rustacles-gateway v0.1.0 (/opt/rustwide/workdir/gateway)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> gateway/src/queue.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn start_send(mut self: Pin<&mut Self>, item: TungsteniteMessage) -> Result<(), Self::Error> {
[INFO] [stdout]    |                   ----^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> gateway/src/queue.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn start_send(mut self: Pin<&mut Self>, item: TungsteniteMessage) -> Result<(), Self::Error> {
[INFO] [stdout]    |                   ----^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.87s
[INFO] running `Command { std: "docker" "inspect" "5bc9fc714a6d058df9a306b31495cf7b0912de0de3248006dcb151ecbbeaa60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc9fc714a6d058df9a306b31495cf7b0912de0de3248006dcb151ecbbeaa60f", kill_on_drop: false }`
[INFO] [stdout] 5bc9fc714a6d058df9a306b31495cf7b0912de0de3248006dcb151ecbbeaa60f