[INFO] fetching crate gfx-backend-gl 0.9.0...
[INFO] checking gfx-backend-gl-0.9.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate gfx-backend-gl 0.9.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gfx-backend-gl 0.9.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gfx-backend-gl 0.9.0
[INFO] finished tweaking crates.io crate gfx-backend-gl 0.9.0
[INFO] tweaked toml for crates.io crate gfx-backend-gl 0.9.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 217d375ee123ca4f88ac9dd6ade077cc5e0075a8a5cfd94d8290c973b87dfd5e
[INFO] running `Command { std: "docker" "start" "-a" "217d375ee123ca4f88ac9dd6ade077cc5e0075a8a5cfd94d8290c973b87dfd5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "217d375ee123ca4f88ac9dd6ade077cc5e0075a8a5cfd94d8290c973b87dfd5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "217d375ee123ca4f88ac9dd6ade077cc5e0075a8a5cfd94d8290c973b87dfd5e", kill_on_drop: false }`
[INFO] [stdout] 217d375ee123ca4f88ac9dd6ade077cc5e0075a8a5cfd94d8290c973b87dfd5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a35348380e06ce879e0d5f5608f3c8fea2c2d34a7b30430865e2f18f3bff0e88
[INFO] running `Command { std: "docker" "start" "-a" "a35348380e06ce879e0d5f5608f3c8fea2c2d34a7b30430865e2f18f3bff0e88", kill_on_drop: false }`
[INFO] [stderr]    Compiling drm-fourcc v2.1.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]     Checking glow v0.9.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking external-memory v0.0.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rose_tree v0.2.0
[INFO] [stderr]     Checking naga v0.5.0
[INFO] [stderr]     Checking gfx-hal v0.9.0
[INFO] [stderr]     Checking gfx-backend-gl v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `downlevel`
[INFO] [stdout]    --> src/info.rs:661:13
[INFO] [stdout]     |
[INFO] [stdout] 661 |     let mut downlevel = hal::DownlevelProperties::all_enabled();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_downlevel`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `downlevel`
[INFO] [stdout]    --> src/info.rs:661:13
[INFO] [stdout]     |
[INFO] [stdout] 661 |     let mut downlevel = hal::DownlevelProperties::all_enabled();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_downlevel`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/info.rs:661:9
[INFO] [stdout]     |
[INFO] [stdout] 661 |     let mut downlevel = hal::DownlevelProperties::all_enabled();
[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]    --> src/info.rs:661:9
[INFO] [stdout]     |
[INFO] [stdout] 661 |     let mut downlevel = hal::DownlevelProperties::all_enabled();
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.14s
[INFO] running `Command { std: "docker" "inspect" "a35348380e06ce879e0d5f5608f3c8fea2c2d34a7b30430865e2f18f3bff0e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a35348380e06ce879e0d5f5608f3c8fea2c2d34a7b30430865e2f18f3bff0e88", kill_on_drop: false }`
[INFO] [stdout] a35348380e06ce879e0d5f5608f3c8fea2c2d34a7b30430865e2f18f3bff0e88