[INFO] fetching crate impromptu 0.0.1...
[INFO] testing impromptu-0.0.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate impromptu 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate impromptu 0.0.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate impromptu 0.0.1
[INFO] finished tweaking crates.io crate impromptu 0.0.1
[INFO] tweaked toml for crates.io crate impromptu 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate impromptu 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded num_cpus v1.10.1
[INFO] [stderr]   Downloaded wasi v0.7.0
[INFO] [stderr]   Downloaded url v2.1.0
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[INFO] [stderr]   Downloaded parking_lot v0.7.1
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[INFO] [stderr]   Downloaded libssh2-sys v0.2.12
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[INFO] [stderr]   Downloaded libgit2-sys v0.9.1
[INFO] [stderr]   Downloaded termion v1.5.3
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded arrayvec v0.4.11
[INFO] [stderr]   Downloaded criterion v0.3.0
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[INFO] [stderr]   Downloaded openssl-sys v0.9.50
[INFO] [stderr]   Downloaded getrandom v0.1.12
[INFO] [stderr]   Downloaded tinytemplate v1.0.2
[INFO] [stderr]   Downloaded once_cell v0.1.8
[INFO] [stderr]   Downloaded rand_xoshiro v0.3.1
[INFO] [stderr]   Downloaded criterion-plot v0.4.0
[INFO] [stderr]   Downloaded git2 v0.10.1
[INFO] [stderr]   Downloaded rayon-core v1.6.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.8
[INFO] [stderr]   Downloaded vcpkg v0.2.7
[INFO] [stderr]   Downloaded cc v1.0.45
[INFO] [stderr]   Downloaded jobserver v0.1.17
[INFO] [stderr]   Downloaded nix v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbad93c5c542f428ce63aba060b41480280055c7466c689b0b74b6d63471f261
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bbad93c5c542f428ce63aba060b41480280055c7466c689b0b74b6d63471f261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbad93c5c542f428ce63aba060b41480280055c7466c689b0b74b6d63471f261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbad93c5c542f428ce63aba060b41480280055c7466c689b0b74b6d63471f261", kill_on_drop: false }`
[INFO] [stdout] bbad93c5c542f428ce63aba060b41480280055c7466c689b0b74b6d63471f261
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 44eafa1c26cadd0dae99b466df7da1d71497175d6f29095189cdda61ec55e58f
[INFO] running `Command { std: "docker" "start" "-a" "44eafa1c26cadd0dae99b466df7da1d71497175d6f29095189cdda61ec55e58f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling criterion-plot v0.4.0
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling termion v1.5.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling rand_xoshiro v0.3.1
[INFO] [stderr]    Compiling rand_os v0.2.2
[INFO] [stderr]    Compiling rayon v1.2.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.50
[INFO] [stderr]    Compiling libssh2-sys v0.2.12
[INFO] [stderr]    Compiling libgit2-sys v0.9.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling once_cell v0.1.8
[INFO] [stderr]    Compiling cached v0.9.0
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling git2 v0.10.1
[INFO] [stderr]    Compiling criterion v0.3.0
[INFO] [stderr]    Compiling impromptu v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `style::Style::*`
[INFO] [stdout]  --> src/main-colors.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use style::Style::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bold`
[INFO] [stdout]   --> src/style.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Bold,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Faint`
[INFO] [stdout]   --> src/style.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Faint,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Italic`
[INFO] [stdout]   --> src/style.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Italic,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Underline`
[INFO] [stdout]   --> src/style.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Underline,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Blink`
[INFO] [stdout]   --> src/style.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Blink,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Invert`
[INFO] [stdout]   --> src/style.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Invert,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CrossedOut`
[INFO] [stdout]   --> src/style.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     CrossedOut,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Framed`
[INFO] [stdout]   --> src/style.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Framed,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `styled`
[INFO] [stdout]    --> src/style.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub fn styled<T: std::fmt::Display>(arg: T, style: Style) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/git.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let mut describe_fmt_options = git2::DescribeFormatOptions::new();
[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 is never read: `size_policy`
[INFO] [stdout]   --> src/widget.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     size_policy: SizePolicy,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Line`
[INFO] [stdout]   --> src/widget.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Line {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/widget.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn add(&mut self, widget: Widget) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_with_separator`
[INFO] [stdout]    --> src/widget.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn add_with_separator(&mut self, widget: Widget, separator: String) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_with_separator_reversed`
[INFO] [stdout]    --> src/widget.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn add_with_separator_reversed(&mut self, widget: Widget, separator: String) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "44eafa1c26cadd0dae99b466df7da1d71497175d6f29095189cdda61ec55e58f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44eafa1c26cadd0dae99b466df7da1d71497175d6f29095189cdda61ec55e58f", kill_on_drop: false }`
[INFO] [stdout] 44eafa1c26cadd0dae99b466df7da1d71497175d6f29095189cdda61ec55e58f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f068560e59b5367805bd45e8cd26a297cf8ca573eca36bb636b2d224253fbfbf
[INFO] running `Command { std: "docker" "start" "-a" "f068560e59b5367805bd45e8cd26a297cf8ca573eca36bb636b2d224253fbfbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling impromptu v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `style::Style::*`
[INFO] [stdout]  --> src/main-colors.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use style::Style::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bold`
[INFO] [stdout]   --> src/style.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Bold,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Faint`
[INFO] [stdout]   --> src/style.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Faint,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Italic`
[INFO] [stdout]   --> src/style.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Italic,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Underline`
[INFO] [stdout]   --> src/style.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Underline,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Blink`
[INFO] [stdout]   --> src/style.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Blink,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Invert`
[INFO] [stdout]   --> src/style.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Invert,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CrossedOut`
[INFO] [stdout]   --> src/style.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     CrossedOut,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Framed`
[INFO] [stdout]   --> src/style.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Framed,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `styled`
[INFO] [stdout]    --> src/style.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub fn styled<T: std::fmt::Display>(arg: T, style: Style) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/git.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let mut describe_fmt_options = git2::DescribeFormatOptions::new();
[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 is never read: `size_policy`
[INFO] [stdout]   --> src/widget.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     size_policy: SizePolicy,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Line`
[INFO] [stdout]   --> src/widget.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Line {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/widget.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn add(&mut self, widget: Widget) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_with_separator`
[INFO] [stdout]    --> src/widget.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn add_with_separator(&mut self, widget: Widget, separator: String) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_with_separator_reversed`
[INFO] [stdout]    --> src/widget.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn add_with_separator_reversed(&mut self, widget: Widget, separator: String) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "f068560e59b5367805bd45e8cd26a297cf8ca573eca36bb636b2d224253fbfbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f068560e59b5367805bd45e8cd26a297cf8ca573eca36bb636b2d224253fbfbf", kill_on_drop: false }`
[INFO] [stdout] f068560e59b5367805bd45e8cd26a297cf8ca573eca36bb636b2d224253fbfbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 979095eddce207b18878147caed3bad94f05faaabc1c1b22721a9ff9d03ea386
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "979095eddce207b18878147caed3bad94f05faaabc1c1b22721a9ff9d03ea386", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/git.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |     let mut describe_fmt_options = git2::DescribeFormatOptions::new();
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `size_policy`
[INFO] [stderr]   --> src/widget.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     size_policy: SizePolicy,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]   --> src/widget.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 | struct Line {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add`
[INFO] [stderr]   --> src/widget.rs:97:12
[INFO] [stderr]    |
[INFO] [stderr] 97 |     pub fn add(&mut self, widget: Widget) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_with_separator`
[INFO] [stderr]    --> src/widget.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn add_with_separator(&mut self, widget: Widget, separator: String) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_with_separator_reversed`
[INFO] [stderr]    --> src/widget.rs:123:12
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn add_with_separator_reversed(&mut self, widget: Widget, separator: String) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `style::Style::*`
[INFO] [stderr]  --> src/main-colors.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use style::Style::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bold`
[INFO] [stderr]   --> src/style.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Bold,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Faint`
[INFO] [stderr]   --> src/style.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Faint,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Italic`
[INFO] [stderr]   --> src/style.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Italic,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Underline`
[INFO] [stderr]   --> src/style.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Underline,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Blink`
[INFO] [stderr]   --> src/style.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Blink,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Invert`
[INFO] [stderr]   --> src/style.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Invert,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CrossedOut`
[INFO] [stderr]   --> src/style.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     CrossedOut,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Framed`
[INFO] [stderr]   --> src/style.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Framed,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `styled`
[INFO] [stderr]    --> src/style.rs:235:8
[INFO] [stderr]     |
[INFO] [stderr] 235 | pub fn styled<T: std::fmt::Display>(arg: T, style: Style) -> String {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `impromptu` (bin "impromptu" test) generated 6 warnings
[INFO] [stderr] warning: `impromptu` (bin "impromptu-colors" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/impromptu-4e945b10f3a69831)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/impromptu_colors-6862fb4af90d34e1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "979095eddce207b18878147caed3bad94f05faaabc1c1b22721a9ff9d03ea386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979095eddce207b18878147caed3bad94f05faaabc1c1b22721a9ff9d03ea386", kill_on_drop: false }`
[INFO] [stdout] 979095eddce207b18878147caed3bad94f05faaabc1c1b22721a9ff9d03ea386
