[INFO] fetching crate libgled 1.2.0...
[INFO] checking libgled-1.2.0 against master#18a6d911caba59605eb03db1452848a85d2e5879 for pr-112743
[INFO] extracting crate libgled 1.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate libgled 1.2.0 on toolchain 18a6d911caba59605eb03db1452848a85d2e5879
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libgled 1.2.0
[INFO] finished tweaking crates.io crate libgled 1.2.0
[INFO] tweaked toml for crates.io crate libgled 1.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lab v0.7.2
[INFO] [stderr]   Downloaded elapsed v0.1.2
[INFO] [stderr]   Downloaded delta_e v0.2.1
[INFO] [stderr]   Downloaded floating-duration v0.1.2
[INFO] [stderr]   Downloaded svgfilters v0.2.0
[INFO] [stderr]   Downloaded roxmltree v0.6.1
[INFO] [stderr]   Downloaded svgdom v0.18.0
[INFO] [stderr]   Downloaded usvg v0.11.0
[INFO] [stderr]   Downloaded roxmltree v0.13.1
[INFO] [stderr]   Downloaded fontdb v0.1.0
[INFO] [stderr]   Downloaded tiny-skia v0.1.0
[INFO] [stderr]   Downloaded rustybuzz v0.1.1
[INFO] [stderr]   Downloaded resvg v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e488a3ffcea3739482f412052594093c9200d0a67d992ab48f7ca467c529f1d4
[INFO] running `Command { std: "docker" "start" "-a" "e488a3ffcea3739482f412052594093c9200d0a67d992ab48f7ca467c529f1d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e488a3ffcea3739482f412052594093c9200d0a67d992ab48f7ca467c529f1d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e488a3ffcea3739482f412052594093c9200d0a67d992ab48f7ca467c529f1d4", kill_on_drop: false }`
[INFO] [stdout] e488a3ffcea3739482f412052594093c9200d0a67d992ab48f7ca467c529f1d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a35f0a9a280688cebf786f5ec532504666cf511de2d8c3817c921a2e4f20631
[INFO] running `Command { std: "docker" "start" "-a" "1a35f0a9a280688cebf786f5ec532504666cf511de2d8c3817c921a2e4f20631", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking simplecss v0.2.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]     Checking xmlparser v0.13.5
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking data-url v0.1.1
[INFO] [stderr]     Checking rgb v0.8.36
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking kurbo v0.6.3
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking xmlparser v0.9.0
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]     Checking roxmltree v0.13.1
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking unicode-script v0.5.5
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking svgfilters v0.2.0
[INFO] [stderr]     Checking lab v0.7.2
[INFO] [stderr]     Checking roxmltree v0.6.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking delta_e v0.2.1
[INFO] [stderr]     Checking artnet_protocol v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]     Checking elapsed v0.1.2
[INFO] [stderr]     Checking floating-duration v0.1.2
[INFO] [stderr]     Checking svgdom v0.18.0
[INFO] [stderr]    Compiling rustybuzz v0.1.1
[INFO] [stderr]    Compiling tiny-skia v0.1.0
[INFO] [stderr]     Checking fontdb v0.1.0
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking serde_json v1.0.97
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]     Checking usvg v0.11.0
[INFO] [stderr]     Checking resvg v0.11.0
[INFO] [stderr]     Checking libgled v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/animation.rs:148:28
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 .for_each(|mut measurement_point| {
[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/animation.rs:148:28
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 .for_each(|mut measurement_point| {
[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/animator/snakes.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let mut head = self.head();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/animator/snakes.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let mut head = self.head();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[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 21.82s
[INFO] running `Command { std: "docker" "inspect" "1a35f0a9a280688cebf786f5ec532504666cf511de2d8c3817c921a2e4f20631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a35f0a9a280688cebf786f5ec532504666cf511de2d8c3817c921a2e4f20631", kill_on_drop: false }`
[INFO] [stdout] 1a35f0a9a280688cebf786f5ec532504666cf511de2d8c3817c921a2e4f20631