[INFO] cloning repository https://github.com/dorayakikun/image-compressor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dorayakikun/image-compressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorayakikun%2Fimage-compressor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorayakikun%2Fimage-compressor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 829761ec53b2f3fc5b1e9fd92784719a0d6c64a5
[INFO] checking dorayakikun/image-compressor against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorayakikun%2Fimage-compressor" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dorayakikun/image-compressor 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 git repo https://github.com/dorayakikun/image-compressor
[INFO] finished tweaking git repo https://github.com/dorayakikun/image-compressor
[INFO] tweaked toml for git repo https://github.com/dorayakikun/image-compressor written to /workspace/builds/worker-3-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/RReverser/oxipng`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 44 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding crc v1.8.1 (latest: v3.0.1)
[INFO] [stderr]       Adding deflate v0.7.20 (latest: v1.0.0)
[INFO] [stderr]       Adding image v0.22.5 (latest: v0.25.1)
[INFO] [stderr]       Adding itertools v0.8.2 (latest: v0.12.1)
[INFO] [stderr]       Adding miniz_oxide v0.3.7 (latest: v0.7.2)
[INFO] [stderr]       Adding num-rational v0.2.4 (latest: v0.4.1)
[INFO] [stderr]       Adding png v0.15.3 (latest: v0.17.13)
[INFO] [stderr]       Adding typed-arena v1.7.0 (latest: v2.0.2)
[INFO] [stderr]       Adding zopfli v0.4.0 (latest: v0.8.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded cloudflare-zlib v0.2.10
[INFO] [stderr]   Downloaded cloudflare-zlib-sys v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ea292f401f5e5d048b4aab7c07dcd31786485a4b7100189cf1714004a928746a
[INFO] running `Command { std: "docker" "start" "-a" "ea292f401f5e5d048b4aab7c07dcd31786485a4b7100189cf1714004a928746a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea292f401f5e5d048b4aab7c07dcd31786485a4b7100189cf1714004a928746a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea292f401f5e5d048b4aab7c07dcd31786485a4b7100189cf1714004a928746a", kill_on_drop: false }`
[INFO] [stdout] ea292f401f5e5d048b4aab7c07dcd31786485a4b7100189cf1714004a928746a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bf44ca72ab6b3dbeae7d5a3a1b6be628764bfc7415b478fb89773bbdff340881
[INFO] running `Command { std: "docker" "start" "-a" "bf44ca72ab6b3dbeae7d5a3a1b6be628764bfc7415b478fb89773bbdff340881", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking rgb v0.8.37
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking zopfli v0.4.0
[INFO] [stderr]    Compiling cloudflare-zlib-sys v0.3.3
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]     Checking cloudflare-zlib v0.2.10
[INFO] [stderr]     Checking oxipng v2.2.2 (https://github.com/RReverser/oxipng?branch=wasm#a6983358)
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking wasm-bindgen v0.2.92
[INFO] [stderr]     Checking image-compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `oxipng` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use oxipng;
[INFO] [stdout]   |     ^^^^^^ the item `oxipng` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `oxipng` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use oxipng;
[INFO] [stdout]   |     ^^^^^^ the item `oxipng` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `catch`
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[wasm_bindgen(catch)]
[INFO] [stdout]   |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_catch`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `catch`
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[wasm_bindgen(catch)]
[INFO] [stdout]   |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_catch`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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` profile [unoptimized + debuginfo] target(s) in 8.44s
[INFO] running `Command { std: "docker" "inspect" "bf44ca72ab6b3dbeae7d5a3a1b6be628764bfc7415b478fb89773bbdff340881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf44ca72ab6b3dbeae7d5a3a1b6be628764bfc7415b478fb89773bbdff340881", kill_on_drop: false }`
[INFO] [stdout] bf44ca72ab6b3dbeae7d5a3a1b6be628764bfc7415b478fb89773bbdff340881