[INFO] crate impromptu 0.0.1 is already in cache
[INFO] checking impromptu-0.0.1 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[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 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] be65e24f9ae7247d86ac949ae5a33471e0ee087fc40dbe108aed8f981046ad81
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "be65e24f9ae7247d86ac949ae5a33471e0ee087fc40dbe108aed8f981046ad81"`
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking once_cell v0.1.8
[INFO] [stderr]     Checking cached v0.9.0
[INFO] [stderr]    Compiling openssl-sys v0.9.50
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libssh2-sys v0.2.12
[INFO] [stderr]    Compiling libgit2-sys v0.9.1
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Checking git2 v0.10.1
[INFO] [stderr]     Checking impromptu v0.0.1 (/opt/rustwide/workdir)
[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: 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: `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: `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: `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: `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: `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: `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: 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: 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: 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: method is never used: `add`
[INFO] [stderr]   --> src/widget.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     pub fn add(&mut self, widget: Widget) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_with_separator`
[INFO] [stderr]    --> src/widget.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn add_with_separator(&mut self, widget: Widget, separator: String) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_with_separator_reversed`
[INFO] [stderr]    --> src/widget.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn add_with_separator_reversed(&mut self, widget: Widget, separator: String) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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: method is never used: `add`
[INFO] [stderr]   --> src/widget.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     pub fn add(&mut self, widget: Widget) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_with_separator`
[INFO] [stderr]    --> src/widget.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn add_with_separator(&mut self, widget: Widget, separator: String) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_with_separator_reversed`
[INFO] [stderr]    --> src/widget.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn add_with_separator_reversed(&mut self, widget: Widget, separator: String) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `"docker" "inspect" "be65e24f9ae7247d86ac949ae5a33471e0ee087fc40dbe108aed8f981046ad81"`
[INFO] running `"docker" "rm" "-f" "be65e24f9ae7247d86ac949ae5a33471e0ee087fc40dbe108aed8f981046ad81"`
[INFO] [stdout] be65e24f9ae7247d86ac949ae5a33471e0ee087fc40dbe108aed8f981046ad81