[INFO] fetching crate pxl-build 0.0.9...
[INFO] checking pxl-build-0.0.9 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate pxl-build 0.0.9 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate pxl-build 0.0.9 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pxl-build 0.0.9
[INFO] finished tweaking crates.io crate pxl-build 0.0.9
[INFO] tweaked toml for crates.io crate pxl-build 0.0.9 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 152 packages
[INFO] [stderr]       Adding alsa-sys v0.1.2 (latest: v0.3.1)
[INFO] [stderr]       Adding approx v0.1.1 (latest: v0.5.1)
[INFO] [stderr]       Adding autocfg v0.1.8 (latest: v1.2.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding cgl v0.2.3 (latest: v0.3.2)
[INFO] [stderr]       Adding cloudabi v0.0.3 (latest: v0.1.0)
[INFO] [stderr]       Adding cocoa v0.15.0 (latest: v0.25.0)
[INFO] [stderr]       Adding core-foundation v0.6.4 (latest: v0.9.4)
[INFO] [stderr]       Adding core-foundation-sys v0.5.1 (latest: v0.8.6)
[INFO] [stderr]       Adding core-foundation-sys v0.6.2 (latest: v0.8.6)
[INFO] [stderr]       Adding core-graphics v0.14.0 (latest: v0.23.2)
[INFO] [stderr]       Adding coreaudio-rs v0.9.1 (latest: v0.11.3)
[INFO] [stderr]       Adding cpal v0.8.2 (latest: v0.15.3)
[INFO] [stderr]       Adding deflate v0.7.20 (latest: v1.0.0)
[INFO] [stderr]       Adding dlib v0.4.2 (latest: v0.5.2)
[INFO] [stderr]       Adding foreign-types v0.3.2 (latest: v0.5.0)
[INFO] [stderr]       Adding foreign-types-shared v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding gif v0.10.3 (latest: v0.13.1)
[INFO] [stderr]       Adding gl v0.10.0 (latest: v0.14.0)
[INFO] [stderr]       Adding gl_generator v0.9.0 (latest: v0.14.0)
[INFO] [stderr]       Adding gl_generator v0.13.1 (latest: v0.14.0)
[INFO] [stderr]       Adding gleam v0.6.19 (latest: v0.15.0)
[INFO] [stderr]       Adding glutin v0.16.0 (latest: v0.31.3)
[INFO] [stderr]       Adding image v0.19.0 (latest: v0.25.1)
[INFO] [stderr]       Adding jpeg-decoder v0.1.22 (latest: v0.3.1)
[INFO] [stderr]       Adding khronos_api v2.2.0 (latest: v3.1.0)
[INFO] [stderr]       Adding libloading v0.6.7 (latest: v0.8.3)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding malloc_buf v0.0.6 (latest: v1.0.0)
[INFO] [stderr]       Adding memmap v0.6.2 (latest: v0.7.0)
[INFO] [stderr]       Adding nix v0.11.1 (latest: v0.28.0)
[INFO] [stderr]       Adding num-derive v0.2.5 (latest: v0.4.2)
[INFO] [stderr]       Adding num-rational v0.1.42 (latest: v0.4.1)
[INFO] [stderr]       Adding owning_ref v0.3.3 (latest: v0.4.1)
[INFO] [stderr]       Adding palette v0.4.1 (latest: v0.7.5)
[INFO] [stderr]       Adding palette_derive v0.4.1 (latest: v0.7.5)
[INFO] [stderr]       Adding parking_lot v0.5.5 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.2.14 (latest: v0.9.9)
[INFO] [stderr]       Adding percent-encoding v1.0.1 (latest: v2.3.1)
[INFO] [stderr]       Adding phf v0.7.24 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_codegen v0.7.24 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_generator v0.7.24 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_shared v0.7.24 (latest: v0.11.2)
[INFO] [stderr]       Adding png v0.12.0 (latest: v0.17.13)
[INFO] [stderr]       Adding proc-macro2 v0.3.8 (latest: v1.0.79)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding quote v0.5.2 (latest: v1.0.35)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.6.5 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.1.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_isaac v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding rand_jitter v0.1.4 (latest: v0.4.0)
[INFO] [stderr]       Adding rand_os v0.1.3 (latest: v0.2.2)
[INFO] [stderr]       Adding rand_pcg v0.1.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_xorshift v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding siphasher v0.2.3 (latest: v1.0.1)
[INFO] [stderr]       Adding smallvec v0.6.14 (latest: v1.13.2)
[INFO] [stderr]       Adding smithay-client-toolkit v0.2.6 (latest: v0.18.1)
[INFO] [stderr]       Adding stdweb v0.1.3 (latest: v0.4.20)
[INFO] [stderr]       Adding syn v0.13.11 (latest: v2.0.58)
[INFO] [stderr]       Adding syn v0.14.9 (latest: v2.0.58)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.58)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[INFO] [stderr]       Adding wayland-client v0.20.12 (latest: v0.31.2)
[INFO] [stderr]       Adding wayland-commons v0.20.12 (latest: v0.29.5)
[INFO] [stderr]       Adding wayland-protocols v0.20.12 (latest: v0.31.2)
[INFO] [stderr]       Adding wayland-scanner v0.20.12 (latest: v0.31.1)
[INFO] [stderr]       Adding wayland-sys v0.20.12 (latest: v0.31.1)
[INFO] [stderr]       Adding winit v0.15.1 (latest: v0.29.15)
[INFO] [stderr]       Adding xml-rs v0.7.0 (latest: v0.8.20)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.2.6
[INFO] [stderr]   Downloaded pxl v0.0.9
[INFO] [stderr]   Downloaded quote v0.5.2
[INFO] [stderr]   Downloaded png v0.12.0
[INFO] [stderr]   Downloaded palette_derive v0.4.1
[INFO] [stderr]   Downloaded cocoa v0.15.0
[INFO] [stderr]   Downloaded glutin v0.16.0
[INFO] [stderr]   Downloaded core-graphics v0.14.0
[INFO] [stderr]   Downloaded image v0.19.0
[INFO] [stderr]   Downloaded palette v0.4.1
[INFO] [stderr]   Downloaded winit v0.15.1
[INFO] [stderr]   Downloaded parking_lot v0.5.5
[INFO] [stderr]   Downloaded proc-macro2 v0.3.8
[INFO] [stderr]   Downloaded syn v0.13.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62c413b915f3c740cdd3e8eee7b717672b075f6059f7a7a3515f306267b37bb8
[INFO] running `Command { std: "docker" "start" "-a" "62c413b915f3c740cdd3e8eee7b717672b075f6059f7a7a3515f306267b37bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62c413b915f3c740cdd3e8eee7b717672b075f6059f7a7a3515f306267b37bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62c413b915f3c740cdd3e8eee7b717672b075f6059f7a7a3515f306267b37bb8", kill_on_drop: false }`
[INFO] [stdout] 62c413b915f3c740cdd3e8eee7b717672b075f6059f7a7a3515f306267b37bb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eedf4b265843dc7c7d7adc14d32bd5c0e3cf2a8ab2bd87ece72ed5c70e05da79
[INFO] running `Command { std: "docker" "start" "-a" "eedf4b265843dc7c7d7adc14d32bd5c0e3cf2a8ab2bd87ece72ed5c70e05da79", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]     Checking wayland-sys v0.20.12
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking wayland-commons v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking proc-macro2 v0.3.8
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]    Compiling glutin v0.16.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.6
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking quote v0.5.2
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking syn v0.13.11
[INFO] [stderr]     Checking winit v0.15.1
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking pxl v0.0.9
[INFO] [stderr]     Checking pxl-build v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]   --> src/error.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use image;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | extern crate image;
[INFO] [stdout]    | ------------------- the item `image` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fs` is imported redundantly
[INFO] [stdout]    --> src/module.rs:141:7
[INFO] [stdout]     |
[INFO] [stdout] 138 |   use super::*;
[INFO] [stdout]     |       -------- the item `fs` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 141 |   use std::fs;
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]   --> src/resource.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use image;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | extern crate image;
[INFO] [stdout]    | ------------------- the item `image` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]   --> src/error.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use image;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | extern crate image;
[INFO] [stdout]    | ------------------- the item `image` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]   --> src/resource.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use image;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | extern crate image;
[INFO] [stdout]    | ------------------- the item `image` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 48.93s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.11, syn v0.14.9
[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" "eedf4b265843dc7c7d7adc14d32bd5c0e3cf2a8ab2bd87ece72ed5c70e05da79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eedf4b265843dc7c7d7adc14d32bd5c0e3cf2a8ab2bd87ece72ed5c70e05da79", kill_on_drop: false }`
[INFO] [stdout] eedf4b265843dc7c7d7adc14d32bd5c0e3cf2a8ab2bd87ece72ed5c70e05da79