[INFO] fetching crate vr 0.0.0...
[INFO] checking vr-0.0.0 against try#751cdbaf3a893bc71b2c617bb7be22dfea5f0862 for pr-95611
[INFO] extracting crate vr 0.0.0 into /workspace/builds/worker-38/source
[INFO] validating manifest of crates.io crate vr 0.0.0 on toolchain 751cdbaf3a893bc71b2c617bb7be22dfea5f0862
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+751cdbaf3a893bc71b2c617bb7be22dfea5f0862" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vr 0.0.0
[INFO] finished tweaking crates.io crate vr 0.0.0
[INFO] tweaked toml for crates.io crate vr 0.0.0 written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+751cdbaf3a893bc71b2c617bb7be22dfea5f0862" "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" "+751cdbaf3a893bc71b2c617bb7be22dfea5f0862" "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-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+751cdbaf3a893bc71b2c617bb7be22dfea5f0862" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c75ca332cb3fb57a5694d7758e638e9b841c3bf79ad3ce596756e18a7ca72c7
[INFO] running `Command { std: "docker" "start" "-a" "5c75ca332cb3fb57a5694d7758e638e9b841c3bf79ad3ce596756e18a7ca72c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c75ca332cb3fb57a5694d7758e638e9b841c3bf79ad3ce596756e18a7ca72c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c75ca332cb3fb57a5694d7758e638e9b841c3bf79ad3ce596756e18a7ca72c7", kill_on_drop: false }`
[INFO] [stdout] 5c75ca332cb3fb57a5694d7758e638e9b841c3bf79ad3ce596756e18a7ca72c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+751cdbaf3a893bc71b2c617bb7be22dfea5f0862" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9981db5307d95f8776df1877b595692eef58c061dbe8180d35df57558a9b0c8
[INFO] running `Command { std: "docker" "start" "-a" "a9981db5307d95f8776df1877b595692eef58c061dbe8180d35df57558a9b0c8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking rgb v0.8.32
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking fallible_collections v0.4.4
[INFO] [stderr]    Compiling libz-sys v1.1.5
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.13.2+1.4.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking clap v3.1.8
[INFO] [stderr]     Checking imagequant v4.0.0
[INFO] [stderr]     Checking git2 v0.14.2
[INFO] [stderr]     Checking vr v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Attributes`, `new`
[INFO] [stdout]  --> src/lib.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use imagequant::{Attributes, new};
[INFO] [stdout]   |                  ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Attributes`, `new`
[INFO] [stdout]  --> src/lib.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use imagequant::{Attributes, new};
[INFO] [stdout]   |                  ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/lib.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.84s
[INFO] running `Command { std: "docker" "inspect" "a9981db5307d95f8776df1877b595692eef58c061dbe8180d35df57558a9b0c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9981db5307d95f8776df1877b595692eef58c061dbe8180d35df57558a9b0c8", kill_on_drop: false }`
[INFO] [stdout] a9981db5307d95f8776df1877b595692eef58c061dbe8180d35df57558a9b0c8