[INFO] fetching crate forest-server 0.1.1...
[INFO] checking forest-server-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate forest-server 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate forest-server 0.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forest-server 0.1.1
[INFO] finished tweaking crates.io crate forest-server 0.1.1
[INFO] tweaked toml for crates.io crate forest-server 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate forest-server 0.1.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66b245dbaf557f7b6a1c5d6c0a5681ab7fa312b6ee0b3bf8bc11605aefc8123e
[INFO] running `Command { std: "docker" "start" "-a" "66b245dbaf557f7b6a1c5d6c0a5681ab7fa312b6ee0b3bf8bc11605aefc8123e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66b245dbaf557f7b6a1c5d6c0a5681ab7fa312b6ee0b3bf8bc11605aefc8123e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b245dbaf557f7b6a1c5d6c0a5681ab7fa312b6ee0b3bf8bc11605aefc8123e", kill_on_drop: false }`
[INFO] [stdout] 66b245dbaf557f7b6a1c5d6c0a5681ab7fa312b6ee0b3bf8bc11605aefc8123e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 019a4f09c9addea234c2306f1ca00044add910af4c7e5d18e90032b9ea7e7855
[INFO] running `Command { std: "docker" "start" "-a" "019a4f09c9addea234c2306f1ca00044add910af4c7e5d18e90032b9ea7e7855", kill_on_drop: false }`
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[INFO] [stderr]     Checking forest-server v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `watchexec` is never read
[INFO] [stdout]   --> src/watch.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Watcher {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 18 |     pub watchexec: Arc<Watchexec>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `watchexec` is never read
[INFO] [stdout]   --> src/watch.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Watcher {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 18 |     pub watchexec: Arc<Watchexec>,
[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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.34s
[INFO] running `Command { std: "docker" "inspect" "019a4f09c9addea234c2306f1ca00044add910af4c7e5d18e90032b9ea7e7855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "019a4f09c9addea234c2306f1ca00044add910af4c7e5d18e90032b9ea7e7855", kill_on_drop: false }`
[INFO] [stdout] 019a4f09c9addea234c2306f1ca00044add910af4c7e5d18e90032b9ea7e7855