[INFO] fetching crate superpixel 0.1.1... [INFO] checking superpixel-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate superpixel 0.1.1 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate superpixel 0.1.1 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 superpixel 0.1.1 [INFO] finished tweaking crates.io crate superpixel 0.1.1 [INFO] tweaked toml for crates.io crate superpixel 0.1.1 written to /workspace/builds/worker-5-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] Locking 44 packages [INFO] [stderr] Adding aho-corasick v0.5.3 (latest: v1.1.3) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding deflate v0.7.20 (latest: v1.0.0) [INFO] [stderr] Adding docopt v0.6.86 (latest: v1.1.1) [INFO] [stderr] Adding gif v0.10.3 (latest: v0.13.1) [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 lazy_static v0.2.11 (latest: v1.4.0) [INFO] [stderr] Adding memchr v0.1.11 (latest: v2.7.2) [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 png v0.12.0 (latest: v0.17.13) [INFO] [stderr] Adding proc-macro2 v0.4.30 (latest: v1.0.79) [INFO] [stderr] Adding quote v0.6.13 (latest: v1.0.35) [INFO] [stderr] Adding regex v0.1.80 (latest: v1.10.4) [INFO] [stderr] Adding regex-syntax v0.3.9 (latest: v0.8.3) [INFO] [stderr] Adding strsim v0.5.2 (latest: v0.11.1) [INFO] [stderr] Adding syn v0.15.44 (latest: v2.0.58) [INFO] [stderr] Adding thread-id v2.0.0 (latest: v4.2.1) [INFO] [stderr] Adding thread_local v0.2.7 (latest: v1.1.8) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.4) [INFO] [stderr] Adding utf8-ranges v0.1.3 (latest: v1.0.5) [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [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] Downloading crates ... [INFO] [stderr] Downloaded image v0.19.0 [INFO] [stderr] Downloaded docopt v0.6.86 [INFO] [stderr] Downloaded png v0.12.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 98c0e7c76cd92ede710effaba0bc6563a7f1d9995b904ef204b359ff69ba8479 [INFO] running `Command { std: "docker" "start" "-a" "98c0e7c76cd92ede710effaba0bc6563a7f1d9995b904ef204b359ff69ba8479", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "98c0e7c76cd92ede710effaba0bc6563a7f1d9995b904ef204b359ff69ba8479", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98c0e7c76cd92ede710effaba0bc6563a7f1d9995b904ef204b359ff69ba8479", kill_on_drop: false }` [INFO] [stdout] 98c0e7c76cd92ede710effaba0bc6563a7f1d9995b904ef204b359ff69ba8479 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 88cc9c4e6e42f84d2a057e067bff13e4cf83fe7de7297d7261820e4993e6896c [INFO] running `Command { std: "docker" "start" "-a" "88cc9c4e6e42f84d2a057e067bff13e4cf83fe7de7297d7261820e4993e6896c", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Checking image v0.19.0 [INFO] [stderr] Checking superpixel v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lib.rs:480:17 [INFO] [stdout] | [INFO] [stdout] 480 | ((y - 1) * width + x) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 480 - ((y - 1) * width + x) [INFO] [stdout] 480 + (y - 1) * width + x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lib.rs:487:17 [INFO] [stdout] | [INFO] [stdout] 487 | (y * width + (x - 1)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 487 - (y * width + (x - 1)) [INFO] [stdout] 487 + y * width + (x - 1) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lib.rs:480:17 [INFO] [stdout] | [INFO] [stdout] 480 | ((y - 1) * width + x) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 480 - ((y - 1) * width + x) [INFO] [stdout] 480 + (y - 1) * width + x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lib.rs:487:17 [INFO] [stdout] | [INFO] [stdout] 487 | (y * width + (x - 1)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 487 - (y * width + (x - 1)) [INFO] [stdout] 487 + y * width + (x - 1) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:326:17 [INFO] [stdout] | [INFO] [stdout] 326 | let mut c = &mut seeds_vec[k]; [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: unused variable: `idx` [INFO] [stdout] --> src/lib.rs:451:17 [INFO] [stdout] | [INFO] [stdout] 451 | let idx = y * width + x; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_idx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `klabels` [INFO] [stdout] --> src/lib.rs:438:5 [INFO] [stdout] | [INFO] [stdout] 438 | klabels: &Vec, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `outline_color` [INFO] [stdout] --> src/lib.rs:440:5 [INFO] [stdout] | [INFO] [stdout] 440 | outline_color: &image::Rgb [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:578:32 [INFO] [stdout] | [INFO] [stdout] 578 | assert!(diff < 0.0001, format!("{} and {} are not within 0.0001", a, b)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 578 - assert!(diff < 0.0001, format!("{} and {} are not within 0.0001", a, b)); [INFO] [stdout] 578 + assert!(diff < 0.0001, "{} and {} are not within 0.0001", a, b); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:326:17 [INFO] [stdout] | [INFO] [stdout] 326 | let mut c = &mut seeds_vec[k]; [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: unused variable: `idx` [INFO] [stdout] --> src/lib.rs:451:17 [INFO] [stdout] | [INFO] [stdout] 451 | let idx = y * width + x; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_idx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `klabels` [INFO] [stdout] --> src/lib.rs:438:5 [INFO] [stdout] | [INFO] [stdout] 438 | klabels: &Vec, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `outline_color` [INFO] [stdout] --> src/lib.rs:440:5 [INFO] [stdout] | [INFO] [stdout] 440 | outline_color: &image::Rgb [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.40s [INFO] running `Command { std: "docker" "inspect" "88cc9c4e6e42f84d2a057e067bff13e4cf83fe7de7297d7261820e4993e6896c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "88cc9c4e6e42f84d2a057e067bff13e4cf83fe7de7297d7261820e4993e6896c", kill_on_drop: false }` [INFO] [stdout] 88cc9c4e6e42f84d2a057e067bff13e4cf83fe7de7297d7261820e4993e6896c