[INFO] cloning repository https://github.com/akgvn/bc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akgvn/bc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakgvn%2Fbc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakgvn%2Fbc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f627e7123b884abd22683b5b04aa42c09cecf4a
[INFO] linting akgvn/bc against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakgvn%2Fbc" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/akgvn/bc
[INFO] finished tweaking git repo https://github.com/akgvn/bc
[INFO] tweaked toml for git repo https://github.com/akgvn/bc written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/akgvn/bc 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 git repo https://github.com/akgvn/bc 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] 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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd2b271b826b29383f3a5c9bc99dd40f11aaffa9e9ade8b98d63c1f75598eb86
[INFO] running `Command { std: "docker" "start" "-a" "bd2b271b826b29383f3a5c9bc99dd40f11aaffa9e9ade8b98d63c1f75598eb86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd2b271b826b29383f3a5c9bc99dd40f11aaffa9e9ade8b98d63c1f75598eb86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd2b271b826b29383f3a5c9bc99dd40f11aaffa9e9ade8b98d63c1f75598eb86", kill_on_drop: false }`
[INFO] [stdout] bd2b271b826b29383f3a5c9bc99dd40f11aaffa9e9ade8b98d63c1f75598eb86
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ccb2955b20f72feb0ab744ce43a9704066674b551e9428534cb9fcd38f211ff
[INFO] running `Command { std: "docker" "start" "-a" "8ccb2955b20f72feb0ab744ce43a9704066674b551e9428534cb9fcd38f211ff", kill_on_drop: false }`
[INFO] [stderr]     Checking bc v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: called `unwrap` on `val` after checking its variant with `is_some`
[INFO] [stdout]    --> src/interpreter.rs:114:28
[INFO] [stdout]     |
[INFO] [stdout] 113 |         if val.is_some() {
[INFO] [stdout]     |         ---------------- help: try: `if let Some(<item>) = val`
[INFO] [stdout] 114 |             println!("{}", val.unwrap());
[INFO] [stdout]     |                            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `val` after checking its variant with `is_some`
[INFO] [stdout]    --> src/interpreter.rs:114:28
[INFO] [stdout]     |
[INFO] [stdout] 113 |         if val.is_some() {
[INFO] [stdout]     |         ---------------- help: try: `if let Some(<item>) = val`
[INFO] [stdout] 114 |             println!("{}", val.unwrap());
[INFO] [stdout]     |                            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `EOF` contains a capitalized acronym
[INFO] [stdout]   --> src/tokenizer.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     EOF,
[INFO] [stdout]    |     ^^^ help: consider making the acronym lowercase, except the initial letter (notice the capitalization): `Eof`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout]    = note: `#[warn(clippy::upper_case_acronyms)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `EOF` contains a capitalized acronym
[INFO] [stdout]   --> src/tokenizer.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     EOF,
[INFO] [stdout]    |     ^^^ help: consider making the acronym lowercase, except the initial letter (notice the capitalization): `Eof`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout]    = note: `#[warn(clippy::upper_case_acronyms)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/tokenizer.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | /         match text {
[INFO] [stdout] 77 | |             _ => Token::Identifier(text, self.line_num),
[INFO] [stdout] 78 | |         }
[INFO] [stdout]    | |_________^ help: consider using the match body instead: `Token::Identifier(text, self.line_num)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout]    = note: `#[warn(clippy::match_single_binding)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this match could be replaced by its body itself
[INFO] [stdout]   --> src/tokenizer.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | /         match text {
[INFO] [stdout] 77 | |             _ => Token::Identifier(text, self.line_num),
[INFO] [stdout] 78 | |         }
[INFO] [stdout]    | |_________^ help: consider using the match body instead: `Token::Identifier(text, self.line_num)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_single_binding
[INFO] [stdout]    = note: `#[warn(clippy::match_single_binding)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/tokenizer.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 | /     match ch {
[INFO] [stdout] 163 | |         '0'..='9' | 'a'..='z' | 'A'..='Z' | '_' => true,
[INFO] [stdout] 164 | |         _ => false,
[INFO] [stdout] 165 | |     }
[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] 162 -     match ch {
[INFO] [stdout] 163 -         '0'..='9' | 'a'..='z' | 'A'..='Z' | '_' => true,
[INFO] [stdout] 164 -         _ => false,
[INFO] [stdout] 165 -     }
[INFO] [stdout] 162 +     matches!(ch, '0'..='9' | 'a'..='z' | 'A'..='Z' | '_')
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/tokenizer.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | /     match ch {
[INFO] [stdout] 170 | |         '0'..='9' => true,
[INFO] [stdout] 171 | |         _ => false,
[INFO] [stdout] 172 | |     }
[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] 169 -     match ch {
[INFO] [stdout] 170 -         '0'..='9' => true,
[INFO] [stdout] 171 -         _ => false,
[INFO] [stdout] 172 -     }
[INFO] [stdout] 169 +     matches!(ch, '0'..='9')
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if !(user_input.len() > 0) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(user_input.len() <= 0)`
[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: length comparison to zero
[INFO] [stdout]   --> src/main.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if !(user_input.len() > 0) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!user_input.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/tokenizer.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 | /     match ch {
[INFO] [stdout] 163 | |         '0'..='9' | 'a'..='z' | 'A'..='Z' | '_' => true,
[INFO] [stdout] 164 | |         _ => false,
[INFO] [stdout] 165 | |     }
[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] 162 -     match ch {
[INFO] [stdout] 163 -         '0'..='9' | 'a'..='z' | 'A'..='Z' | '_' => true,
[INFO] [stdout] 164 -         _ => false,
[INFO] [stdout] 165 -     }
[INFO] [stdout] 162 +     matches!(ch, '0'..='9' | 'a'..='z' | 'A'..='Z' | '_')
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/tokenizer.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | /     match ch {
[INFO] [stdout] 170 | |         '0'..='9' => true,
[INFO] [stdout] 171 | |         _ => false,
[INFO] [stdout] 172 | |     }
[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] 169 -     match ch {
[INFO] [stdout] 170 -         '0'..='9' => true,
[INFO] [stdout] 171 -         _ => false,
[INFO] [stdout] 172 -     }
[INFO] [stdout] 169 +     matches!(ch, '0'..='9')
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if !(user_input.len() > 0) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(user_input.len() <= 0)`
[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: length comparison to zero
[INFO] [stdout]   --> src/main.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if !(user_input.len() > 0) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!user_input.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tokenizer.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn tokens_from_text(source: &str) -> Vec<Token> {
[INFO] [stdout]    |                                 ^^^^         ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn tokens_from_text(source: &str) -> Vec<Token<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tokenizer.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn tokens_from_text(source: &str) -> Vec<Token> {
[INFO] [stdout]    |                                 ^^^^         ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn tokens_from_text(source: &str) -> Vec<Token<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "8ccb2955b20f72feb0ab744ce43a9704066674b551e9428534cb9fcd38f211ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ccb2955b20f72feb0ab744ce43a9704066674b551e9428534cb9fcd38f211ff", kill_on_drop: false }`
[INFO] [stdout] 8ccb2955b20f72feb0ab744ce43a9704066674b551e9428534cb9fcd38f211ff