[INFO] fetching crate brotli 3.4.0...
[INFO] checking brotli-3.4.0 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate brotli 3.4.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate brotli 3.4.0 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate brotli 3.4.0
[INFO] finished tweaking crates.io crate brotli 3.4.0
[INFO] tweaked toml for crates.io crate brotli 3.4.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate brotli 3.4.0 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded brotli-decompressor v2.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fe92128d07e383d951362916278115722cac9dac0e3cf52a7afa3442b565d12
[INFO] running `Command { std: "docker" "start" "-a" "0fe92128d07e383d951362916278115722cac9dac0e3cf52a7afa3442b565d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fe92128d07e383d951362916278115722cac9dac0e3cf52a7afa3442b565d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe92128d07e383d951362916278115722cac9dac0e3cf52a7afa3442b565d12", kill_on_drop: false }`
[INFO] [stdout] 0fe92128d07e383d951362916278115722cac9dac0e3cf52a7afa3442b565d12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a61007bb85750712b101ded2321aef3974725f776d26ccb0a5f0d01ca24a9e1
[INFO] running `Command { std: "docker" "start" "-a" "6a61007bb85750712b101ded2321aef3974725f776d26ccb0a5f0d01ca24a9e1", kill_on_drop: false }`
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking brotli-decompressor v2.5.0
[INFO] [stderr]     Checking brotli v3.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/enc/pdf.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PDF([i16;16]);
[INFO] [stdout]   |            --- ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PDF` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PDF(());
[INFO] [stdout]   |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/enc/worker_pool.rs:135:19
[INFO] [stdout]     |
[INFO] [stdout] 135 |               let _ = cvar.wait(local_queue); // unlock immediately, unfortunately
[INFO] [stdout]     |                   ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 135 |               let _unused = cvar.wait(local_queue); // unlock immediately, unfortunately
[INFO] [stdout]     |                   ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 135 |               drop(cvar.wait(local_queue)); // unlock immediately, unfortunately
[INFO] [stdout]     |               ~~~~~                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/enc/pdf.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PDF([i16;16]);
[INFO] [stdout]   |            --- ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PDF` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PDF(());
[INFO] [stdout]   |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `brotli` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/enc/worker_pool.rs:135:19
[INFO] [stdout]     |
[INFO] [stdout] 135 |               let _ = cvar.wait(local_queue); // unlock immediately, unfortunately
[INFO] [stdout]     |                   ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 135 |               let _unused = cvar.wait(local_queue); // unlock immediately, unfortunately
[INFO] [stdout]     |                   ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 135 |               drop(cvar.wait(local_queue)); // unlock immediately, unfortunately
[INFO] [stdout]     |               ~~~~~                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `brotli` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6a61007bb85750712b101ded2321aef3974725f776d26ccb0a5f0d01ca24a9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a61007bb85750712b101ded2321aef3974725f776d26ccb0a5f0d01ca24a9e1", kill_on_drop: false }`
[INFO] [stdout] 6a61007bb85750712b101ded2321aef3974725f776d26ccb0a5f0d01ca24a9e1
