[INFO] cloning repository https://github.com/eij/rs-convert
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eij/rs-convert" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feij%2Frs-convert", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b08c087861a52cdff391b87fbe19e38bbd101e23
[INFO] building eij/rs-convert against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feij%2Frs-convert" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
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[INFO] crate git repo https://github.com/eij/rs-convert already has a lockfile, it will not be regenerated
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "7fb034f9183d247143d7855cfb4787a79aa3d2457ed569ab6d65c5d6cda9740d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fb034f9183d247143d7855cfb4787a79aa3d2457ed569ab6d65c5d6cda9740d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fb034f9183d247143d7855cfb4787a79aa3d2457ed569ab6d65c5d6cda9740d", kill_on_drop: false }`
[INFO] [stdout] 7fb034f9183d247143d7855cfb4787a79aa3d2457ed569ab6d65c5d6cda9740d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4c33cf5695364db1b0cc6d65f8e7c305d9b7a454357d9d65e7588a88e83661b
[INFO] running `Command { std: "docker" "start" "-a" "c4c33cf5695364db1b0cc6d65f8e7c305d9b7a454357d9d65e7588a88e83661b", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling nodrop v0.1.12
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[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling gio v0.5.1
[INFO] [stderr]    Compiling fragile v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling cairo-rs v0.5.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling gdk-pixbuf v0.5.0
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling gdk v0.9.0
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[INFO] [stderr]    Compiling glib-sys v0.7.0
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[INFO] [stderr]    Compiling gio-sys v0.7.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.7.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.7.0
[INFO] [stderr]    Compiling pango-sys v0.7.0
[INFO] [stderr]    Compiling gdk-sys v0.7.0
[INFO] [stderr]    Compiling atk-sys v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling gtk-sys v0.7.0
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling glib v0.6.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling pango v0.5.0
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.0
[INFO] [stderr]    Compiling converter v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/utils/threads.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     (cpus * 2)
[INFO] [stdout]   |     ^        ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 -     (cpus * 2)
[INFO] [stdout] 6 +     cpus * 2 
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/utils/folders.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 |             (true)
[INFO] [stdout]   |             ^    ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -             (true)
[INFO] [stdout] 9 +             true 
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 |             (false)
[INFO] [stdout]    |             ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -             (false)
[INFO] [stdout] 15 +             false 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |         (false)
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 -         (false)
[INFO] [stdout] 19 +         false 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 |             (false)
[INFO] [stdout]    |             ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 -             (false)
[INFO] [stdout] 26 +             false 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 |             (true)
[INFO] [stdout]    |             ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 29 -             (true)
[INFO] [stdout] 29 +             true 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |         (false)
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -         (false)
[INFO] [stdout] 33 +         false 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:49:2
[INFO] [stdout]    |
[INFO] [stdout] 49 |     (c)
[INFO] [stdout]    |     ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     (c)
[INFO] [stdout] 49 +     c 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `stop` is never used
[INFO] [stdout]    --> src/convert/mod.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout]  24 | impl Process {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn stop(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "c4c33cf5695364db1b0cc6d65f8e7c305d9b7a454357d9d65e7588a88e83661b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4c33cf5695364db1b0cc6d65f8e7c305d9b7a454357d9d65e7588a88e83661b", kill_on_drop: false }`
[INFO] [stdout] c4c33cf5695364db1b0cc6d65f8e7c305d9b7a454357d9d65e7588a88e83661b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29fb79d8aa0c90b1b3c1db89999b10ad0227c1ce4e2a8561decf62c3159de4ff
[INFO] running `Command { std: "docker" "start" "-a" "29fb79d8aa0c90b1b3c1db89999b10ad0227c1ce4e2a8561decf62c3159de4ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling converter v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/utils/threads.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     (cpus * 2)
[INFO] [stdout]   |     ^        ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 -     (cpus * 2)
[INFO] [stdout] 6 +     cpus * 2 
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/utils/folders.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 |             (true)
[INFO] [stdout]   |             ^    ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -             (true)
[INFO] [stdout] 9 +             true 
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 |             (false)
[INFO] [stdout]    |             ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -             (false)
[INFO] [stdout] 15 +             false 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |         (false)
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 -         (false)
[INFO] [stdout] 19 +         false 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 |             (false)
[INFO] [stdout]    |             ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 -             (false)
[INFO] [stdout] 26 +             false 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 |             (true)
[INFO] [stdout]    |             ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 29 -             (true)
[INFO] [stdout] 29 +             true 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |         (false)
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -         (false)
[INFO] [stdout] 33 +         false 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utils/folders.rs:49:2
[INFO] [stdout]    |
[INFO] [stdout] 49 |     (c)
[INFO] [stdout]    |     ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     (c)
[INFO] [stdout] 49 +     c 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `stop` is never used
[INFO] [stdout]    --> src/convert/mod.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout]  24 | impl Process {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn stop(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "29fb79d8aa0c90b1b3c1db89999b10ad0227c1ce4e2a8561decf62c3159de4ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fb79d8aa0c90b1b3c1db89999b10ad0227c1ce4e2a8561decf62c3159de4ff", kill_on_drop: false }`
[INFO] [stdout] 29fb79d8aa0c90b1b3c1db89999b10ad0227c1ce4e2a8561decf62c3159de4ff