[INFO] fetching crate strfmt 0.2.5...
[INFO] linting strfmt-0.2.5 against nightly for clippy-nonminimal_bool-denied
[INFO] extracting crate strfmt 0.2.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate strfmt 0.2.5
[INFO] finished tweaking crates.io crate strfmt 0.2.5
[INFO] tweaked toml for crates.io crate strfmt 0.2.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate strfmt 0.2.5 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate strfmt 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f65b71ef09b8b7a74b47b13f49617412fc1c58782d7b05d1002a102a6d9e175b
[INFO] running `Command { std: "docker" "start" "-a" "f65b71ef09b8b7a74b47b13f49617412fc1c58782d7b05d1002a102a6d9e175b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f65b71ef09b8b7a74b47b13f49617412fc1c58782d7b05d1002a102a6d9e175b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f65b71ef09b8b7a74b47b13f49617412fc1c58782d7b05d1002a102a6d9e175b", kill_on_drop: false }`
[INFO] [stdout] f65b71ef09b8b7a74b47b13f49617412fc1c58782d7b05d1002a102a6d9e175b
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7371bc0f7d53f73b88e0312da919b73565a9048f8264716153b98f8853fccfc8
[INFO] running `Command { std: "docker" "start" "-a" "7371bc0f7d53f73b88e0312da919b73565a9048f8264716153b98f8853fccfc8", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking strfmt v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `>= y + 1` or `x - 1 >=`
[INFO] [stdout]    --> src/formatter.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 |     if end - pos >= 1 + fake_fill.len_utf8()
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change it to: `end - pos > fake_fill.len_utf8()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#int_plus_one
[INFO] [stdout]     = note: `#[warn(clippy::int_plus_one)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/formatter.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |             buff: buff,
[INFO] [stdout]     |             ^^^^^^^^^^ help: replace it with: `buff`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `c @ _` pattern can be written as just `c`
[INFO] [stdout]   --> src/tests/strfmt.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             c @ _ => panic!("error code {} DNE", c),
[INFO] [stdout]    |             ^^^^^ help: try: `c`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stdout]    = note: `#[warn(clippy::redundant_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `>= y + 1` or `x - 1 >=`
[INFO] [stdout]    --> src/formatter.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 |     if end - pos >= 1 + fake_fill.len_utf8()
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change it to: `end - pos > fake_fill.len_utf8()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#int_plus_one
[INFO] [stdout]     = note: `#[warn(clippy::int_plus_one)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/formatter.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |             buff: buff,
[INFO] [stdout]     |             ^^^^^^^^^^ help: replace it with: `buff`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]   --> src/fmtstr.rs:75:14
[INFO] [stdout]    |
[INFO] [stdout] 75 |         if !(self.ty() == None || self.ty() == Some('s')) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^ help: use `Option::is_none()` instead: `self.ty().is_none()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout]    = note: `#[warn(clippy::partialeq_to_none)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/formatter.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     match c {
[INFO] [stdout] 26 | |         '=' | '<' | '^' | '>' => true,
[INFO] [stdout] 27 | |         _ => false,
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 25 -     match c {
[INFO] [stdout] 26 -         '=' | '<' | '^' | '>' => true,
[INFO] [stdout] 27 -         _ => false,
[INFO] [stdout] 28 -     }
[INFO] [stdout] 25 +     matches!(c, '=' | '<' | '^' | '>')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/formatter.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     match c {
[INFO] [stdout] 33 | |         ' ' | '-' | '+' => true,
[INFO] [stdout] 34 | |         _ => false,
[INFO] [stdout] 35 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 32 -     match c {
[INFO] [stdout] 33 -         ' ' | '-' | '+' => true,
[INFO] [stdout] 34 -         _ => false,
[INFO] [stdout] 35 -     }
[INFO] [stdout] 32 +     matches!(c, ' ' | '-' | '+')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/formatter.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     match c {
[INFO] [stdout] 40 | |         'b' | 'o' | 'x' | 'X' | 'e' | 'E' | 'f' | 'F' | '%' | 's' | '?' => true,
[INFO] [stdout] 41 | |         _ => false,
[INFO] [stdout] 42 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 39 -     match c {
[INFO] [stdout] 40 -         'b' | 'o' | 'x' | 'X' | 'e' | 'E' | 'f' | 'F' | '%' | 's' | '?' => true,
[INFO] [stdout] 41 -         _ => false,
[INFO] [stdout] 42 -     }
[INFO] [stdout] 39 +     matches!(c, 'b' | 'o' | 'x' | 'X' | 'e' | 'E' | 'f' | 'F' | '%' | 's' | '?')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `ok`
[INFO] [stdout]   --> src/formatter.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 | /             match str::from_utf8_unchecked(intstr).parse::<i64>() {
[INFO] [stdout] 64 | |                 Ok(v) => Some(v),
[INFO] [stdout] 65 | |                 Err(_) => None,
[INFO] [stdout] 66 | |             }
[INFO] [stdout]    | |_____________^ help: replace with: `str::from_utf8_unchecked(intstr).parse::<i64>().ok()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
[INFO] [stdout]    = note: `#[warn(clippy::manual_ok_err)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting a character literal to `u8` truncates
[INFO] [stdout]    --> src/formatter.rs:145:58
[INFO] [stdout]     |
[INFO] [stdout] 145 |     if !fill_specified && end - pos >= 1 && rest[pos] == '0' as u8 {
[INFO] [stdout]     |                                                          ^^^^^^^^^ help: use a byte literal instead: `b'0'`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `char` is four bytes wide, but `u8` is a single byte
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stdout]     = note: `#[warn(clippy::char_lit_as_u8)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/formatter.rs:389:24
[INFO] [stdout]     |
[INFO] [stdout] 389 |               Some(c) => match c {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 390 | |                 'b' | 'o' | 'x' | 'X' => true,
[INFO] [stdout] 391 | |                 _ => false,
[INFO] [stdout] 392 | |             },
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]     |
[INFO] [stdout] 389 -             Some(c) => match c {
[INFO] [stdout] 390 -                 'b' | 'o' | 'x' | 'X' => true,
[INFO] [stdout] 391 -                 _ => false,
[INFO] [stdout] 392 -             },
[INFO] [stdout] 389 +             Some(c) => matches!(c, 'b' | 'o' | 'x' | 'X'),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/formatter.rs:402:24
[INFO] [stdout]     |
[INFO] [stdout] 402 |               Some(c) => match c {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 403 | |                 'f' | 'e' | 'E' => true,
[INFO] [stdout] 404 | |                 _ => false,
[INFO] [stdout] 405 | |             },
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]     |
[INFO] [stdout] 402 -             Some(c) => match c {
[INFO] [stdout] 403 -                 'f' | 'e' | 'E' => true,
[INFO] [stdout] 404 -                 _ => false,
[INFO] [stdout] 405 -             },
[INFO] [stdout] 402 +             Some(c) => matches!(c, 'f' | 'e' | 'E'),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/types.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | /         match *self {
[INFO] [stdout] 26 | |             Sign::Unspecified => false,
[INFO] [stdout] 27 | |             _ => true,
[INFO] [stdout] 28 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 25 -         match *self {
[INFO] [stdout] 26 -             Sign::Unspecified => false,
[INFO] [stdout] 27 -             _ => true,
[INFO] [stdout] 28 -         }
[INFO] [stdout] 25 +         !matches!(*self, Sign::Unspecified)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this lifetime isn't used in the function definition
[INFO] [stdout]   --> src/lib.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn strfmt<'a, K, T: DisplayStr>(fmtstr: &str, vars: &HashMap<K, T>) -> Result<String>
[INFO] [stdout]    |               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stdout]    = note: `#[warn(clippy::extra_unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this lifetime isn't used in the function definition
[INFO] [stdout]   --> src/lib.rs:81:23
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn strfmt_display<'a, K, T: fmt::Display>(fmtstr: &str, vars: &HashMap<K, T>) -> Result<String>
[INFO] [stdout]    |                       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]   --> src/fmtstr.rs:75:14
[INFO] [stdout]    |
[INFO] [stdout] 75 |         if !(self.ty() == None || self.ty() == Some('s')) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^ help: use `Option::is_none()` instead: `self.ty().is_none()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout]    = note: `#[warn(clippy::partialeq_to_none)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/formatter.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     match c {
[INFO] [stdout] 26 | |         '=' | '<' | '^' | '>' => true,
[INFO] [stdout] 27 | |         _ => false,
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 25 -     match c {
[INFO] [stdout] 26 -         '=' | '<' | '^' | '>' => true,
[INFO] [stdout] 27 -         _ => false,
[INFO] [stdout] 28 -     }
[INFO] [stdout] 25 +     matches!(c, '=' | '<' | '^' | '>')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/formatter.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     match c {
[INFO] [stdout] 33 | |         ' ' | '-' | '+' => true,
[INFO] [stdout] 34 | |         _ => false,
[INFO] [stdout] 35 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 32 -     match c {
[INFO] [stdout] 33 -         ' ' | '-' | '+' => true,
[INFO] [stdout] 34 -         _ => false,
[INFO] [stdout] 35 -     }
[INFO] [stdout] 32 +     matches!(c, ' ' | '-' | '+')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/formatter.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     match c {
[INFO] [stdout] 40 | |         'b' | 'o' | 'x' | 'X' | 'e' | 'E' | 'f' | 'F' | '%' | 's' | '?' => true,
[INFO] [stdout] 41 | |         _ => false,
[INFO] [stdout] 42 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 39 -     match c {
[INFO] [stdout] 40 -         'b' | 'o' | 'x' | 'X' | 'e' | 'E' | 'f' | 'F' | '%' | 's' | '?' => true,
[INFO] [stdout] 41 -         _ => false,
[INFO] [stdout] 42 -     }
[INFO] [stdout] 39 +     matches!(c, 'b' | 'o' | 'x' | 'X' | 'e' | 'E' | 'f' | 'F' | '%' | 's' | '?')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `ok`
[INFO] [stdout]   --> src/formatter.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 | /             match str::from_utf8_unchecked(intstr).parse::<i64>() {
[INFO] [stdout] 64 | |                 Ok(v) => Some(v),
[INFO] [stdout] 65 | |                 Err(_) => None,
[INFO] [stdout] 66 | |             }
[INFO] [stdout]    | |_____________^ help: replace with: `str::from_utf8_unchecked(intstr).parse::<i64>().ok()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
[INFO] [stdout]    = note: `#[warn(clippy::manual_ok_err)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting a character literal to `u8` truncates
[INFO] [stdout]    --> src/formatter.rs:145:58
[INFO] [stdout]     |
[INFO] [stdout] 145 |     if !fill_specified && end - pos >= 1 && rest[pos] == '0' as u8 {
[INFO] [stdout]     |                                                          ^^^^^^^^^ help: use a byte literal instead: `b'0'`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `char` is four bytes wide, but `u8` is a single byte
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stdout]     = note: `#[warn(clippy::char_lit_as_u8)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/formatter.rs:389:24
[INFO] [stdout]     |
[INFO] [stdout] 389 |               Some(c) => match c {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 390 | |                 'b' | 'o' | 'x' | 'X' => true,
[INFO] [stdout] 391 | |                 _ => false,
[INFO] [stdout] 392 | |             },
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]     |
[INFO] [stdout] 389 -             Some(c) => match c {
[INFO] [stdout] 390 -                 'b' | 'o' | 'x' | 'X' => true,
[INFO] [stdout] 391 -                 _ => false,
[INFO] [stdout] 392 -             },
[INFO] [stdout] 389 +             Some(c) => matches!(c, 'b' | 'o' | 'x' | 'X'),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/formatter.rs:402:24
[INFO] [stdout]     |
[INFO] [stdout] 402 |               Some(c) => match c {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 403 | |                 'f' | 'e' | 'E' => true,
[INFO] [stdout] 404 | |                 _ => false,
[INFO] [stdout] 405 | |             },
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]     |
[INFO] [stdout] 402 -             Some(c) => match c {
[INFO] [stdout] 403 -                 'f' | 'e' | 'E' => true,
[INFO] [stdout] 404 -                 _ => false,
[INFO] [stdout] 405 -             },
[INFO] [stdout] 402 +             Some(c) => matches!(c, 'f' | 'e' | 'E'),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/tests/fmt.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         assert_eq!(f.alternate(), false);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 13 -         assert_eq!(f.alternate(), false);
[INFO] [stdout] 13 +         assert!(!f.alternate());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/tests/fmt.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         assert_eq!(f.thousands(), false);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 15 -         assert_eq!(f.thousands(), false);
[INFO] [stdout] 15 +         assert!(!f.thousands());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/tests/strfmt.rs:36:23
[INFO] [stdout]    |
[INFO] [stdout] 36 |             failure = !(expected == result);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^ help: try: `(expected != result)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this assertion is always `false`
[INFO] [stdout]   --> src/tests/strfmt.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             assert!(false);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: replace this with `panic!()` or `unreachable!()`
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_constants
[INFO] [stdout]    = note: `#[warn(clippy::assertions_on_constants)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/types.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | /         match *self {
[INFO] [stdout] 26 | |             Sign::Unspecified => false,
[INFO] [stdout] 27 | |             _ => true,
[INFO] [stdout] 28 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 25 -         match *self {
[INFO] [stdout] 26 -             Sign::Unspecified => false,
[INFO] [stdout] 27 -             _ => true,
[INFO] [stdout] 28 -         }
[INFO] [stdout] 25 +         !matches!(*self, Sign::Unspecified)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this lifetime isn't used in the function definition
[INFO] [stdout]   --> src/lib.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn strfmt<'a, K, T: DisplayStr>(fmtstr: &str, vars: &HashMap<K, T>) -> Result<String>
[INFO] [stdout]    |               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stdout]    = note: `#[warn(clippy::extra_unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this lifetime isn't used in the function definition
[INFO] [stdout]   --> src/lib.rs:81:23
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn strfmt_display<'a, K, T: fmt::Display>(fmtstr: &str, vars: &HashMap<K, T>) -> Result<String>
[INFO] [stdout]    |                       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "7371bc0f7d53f73b88e0312da919b73565a9048f8264716153b98f8853fccfc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7371bc0f7d53f73b88e0312da919b73565a9048f8264716153b98f8853fccfc8", kill_on_drop: false }`
[INFO] [stdout] 7371bc0f7d53f73b88e0312da919b73565a9048f8264716153b98f8853fccfc8