[INFO] fetching crate gazpatcho 1.4.2...
[INFO] checking gazpatcho-1.4.2 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate gazpatcho 1.4.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate gazpatcho 1.4.2 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gazpatcho 1.4.2
[INFO] finished tweaking crates.io crate gazpatcho 1.4.2
[INFO] tweaked toml for crates.io crate gazpatcho 1.4.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate gazpatcho 1.4.2 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.123
[INFO] [stderr]   Downloaded serde_derive v1.0.123
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 724e9c5bfbeb42a552838eb7ff4a30554084b4fd95ff1893b675e29d5bbaeaf3
[INFO] running `Command { std: "docker" "start" "-a" "724e9c5bfbeb42a552838eb7ff4a30554084b4fd95ff1893b675e29d5bbaeaf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "724e9c5bfbeb42a552838eb7ff4a30554084b4fd95ff1893b675e29d5bbaeaf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "724e9c5bfbeb42a552838eb7ff4a30554084b4fd95ff1893b675e29d5bbaeaf3", kill_on_drop: false }`
[INFO] [stdout] 724e9c5bfbeb42a552838eb7ff4a30554084b4fd95ff1893b675e29d5bbaeaf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c3b8881938dbc45b20de23accdd34c83592e72f6447f68351219ac7cb3fe3a2
[INFO] running `Command { std: "docker" "start" "-a" "6c3b8881938dbc45b20de23accdd34c83592e72f6447f68351219ac7cb3fe3a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking chlorine v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]    Compiling serde_json v1.0.63
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking takeable-option v0.5.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]    Compiling imgui-sys v0.7.0
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glium v0.29.0
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking wayland-commons v0.28.5
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]     Checking wayland-cursor v0.28.5
[INFO] [stderr]     Checking wayland-egl v0.28.5
[INFO] [stderr]     Checking imgui v0.7.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.2
[INFO] [stderr]     Checking winit v0.24.0
[INFO] [stderr]     Checking glutin v0.26.0
[INFO] [stderr]     Checking imgui-winit-support v0.7.0
[INFO] [stderr]     Checking imgui-glium-renderer v0.7.0
[INFO] [stderr]     Checking gazpatcho v1.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/engine/reducer.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut node = state
[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/engine/reducer.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut node = state
[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: field `font_size` is never read
[INFO] [stdout]   --> src/engine/system.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct System {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub font_size: f32,
[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: field `font_size` is never read
[INFO] [stdout]   --> src/engine/system.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct System {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub font_size: f32,
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "6c3b8881938dbc45b20de23accdd34c83592e72f6447f68351219ac7cb3fe3a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c3b8881938dbc45b20de23accdd34c83592e72f6447f68351219ac7cb3fe3a2", kill_on_drop: false }`
[INFO] [stdout] 6c3b8881938dbc45b20de23accdd34c83592e72f6447f68351219ac7cb3fe3a2