[INFO] fetching crate exprs 0.1.1...
[INFO] testing exprs-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate exprs 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate exprs 0.1.1
[INFO] finished tweaking crates.io crate exprs 0.1.1
[INFO] tweaked toml for crates.io crate exprs 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate exprs 0.1.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate exprs 0.1.1 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 909ed13f929cb953c7dc0f9550e3a4de9ce2f2fe1f58af94bf57590a7642ac8b
[INFO] running `Command { std: "docker" "start" "-a" "909ed13f929cb953c7dc0f9550e3a4de9ce2f2fe1f58af94bf57590a7642ac8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "909ed13f929cb953c7dc0f9550e3a4de9ce2f2fe1f58af94bf57590a7642ac8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909ed13f929cb953c7dc0f9550e3a4de9ce2f2fe1f58af94bf57590a7642ac8b", kill_on_drop: false }`
[INFO] [stdout] 909ed13f929cb953c7dc0f9550e3a4de9ce2f2fe1f58af94bf57590a7642ac8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52b76c439f50a8f1ccb690c736a3fdde27a67ab9349d29f79acd425fa4d34a2c
[INFO] running `Command { std: "docker" "start" "-a" "52b76c439f50a8f1ccb690c736a3fdde27a67ab9349d29f79acd425fa4d34a2c", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling exprs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lexer.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 /// Need to parse function
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |             _ => Assoc::NONE,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/token.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Op::SUM | Op::MUL | Op::SUB | Op::DIV => Assoc::LEFT,
[INFO] [stdout]    |             ------------------------------------- matches some of the same values
[INFO] [stdout] 64 |             Op::EXP | Op::NEG | Op::FAC => Assoc::RIGHT,
[INFO] [stdout]    |             --------------------------- matches some of the same values
[INFO] [stdout] 65 |             _ => Assoc::NONE,
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             _ => 0,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/token.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             Op::NEG => 5,
[INFO] [stdout]    |             ------- matches some of the same values
[INFO] [stdout] 74 |             Op::EXP | Op::FAC => 4,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 75 |             Op::SUB | Op::SUM => 2,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 76 |             Op::MUL | Op::DIV => 3,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 77 |             _ => 0,
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut is_fn = false;
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "52b76c439f50a8f1ccb690c736a3fdde27a67ab9349d29f79acd425fa4d34a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52b76c439f50a8f1ccb690c736a3fdde27a67ab9349d29f79acd425fa4d34a2c", kill_on_drop: false }`
[INFO] [stdout] 52b76c439f50a8f1ccb690c736a3fdde27a67ab9349d29f79acd425fa4d34a2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d5e77dfe3e145c0fd51b023145e49095951e6569212b2f786865b48b5e53b0c
[INFO] running `Command { std: "docker" "start" "-a" "0d5e77dfe3e145c0fd51b023145e49095951e6569212b2f786865b48b5e53b0c", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lexer.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 /// Need to parse function
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |             _ => Assoc::NONE,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/token.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Op::SUM | Op::MUL | Op::SUB | Op::DIV => Assoc::LEFT,
[INFO] [stdout]    |             ------------------------------------- matches some of the same values
[INFO] [stdout] 64 |             Op::EXP | Op::NEG | Op::FAC => Assoc::RIGHT,
[INFO] [stdout]    |             --------------------------- matches some of the same values
[INFO] [stdout] 65 |             _ => Assoc::NONE,
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling exprs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             _ => 0,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/token.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             Op::NEG => 5,
[INFO] [stdout]    |             ------- matches some of the same values
[INFO] [stdout] 74 |             Op::EXP | Op::FAC => 4,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 75 |             Op::SUB | Op::SUM => 2,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 76 |             Op::MUL | Op::DIV => 3,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 77 |             _ => 0,
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut is_fn = false;
[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: unused doc comment
[INFO] [stdout]   --> src/lexer.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 /// Need to parse function
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |             _ => Assoc::NONE,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/token.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Op::SUM | Op::MUL | Op::SUB | Op::DIV => Assoc::LEFT,
[INFO] [stdout]    |             ------------------------------------- matches some of the same values
[INFO] [stdout] 64 |             Op::EXP | Op::NEG | Op::FAC => Assoc::RIGHT,
[INFO] [stdout]    |             --------------------------- matches some of the same values
[INFO] [stdout] 65 |             _ => Assoc::NONE,
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             _ => 0,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/token.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             Op::NEG => 5,
[INFO] [stdout]    |             ------- matches some of the same values
[INFO] [stdout] 74 |             Op::EXP | Op::FAC => 4,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 75 |             Op::SUB | Op::SUM => 2,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 76 |             Op::MUL | Op::DIV => 3,
[INFO] [stdout]    |             ----------------- matches some of the same values
[INFO] [stdout] 77 |             _ => 0,
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut is_fn = false;
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "0d5e77dfe3e145c0fd51b023145e49095951e6569212b2f786865b48b5e53b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5e77dfe3e145c0fd51b023145e49095951e6569212b2f786865b48b5e53b0c", kill_on_drop: false }`
[INFO] [stdout] 0d5e77dfe3e145c0fd51b023145e49095951e6569212b2f786865b48b5e53b0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f0344a6ca671da9fc5202a065101baae0fd0d93a7948f20fee94f21b376c6e3
[INFO] running `Command { std: "docker" "start" "-a" "5f0344a6ca671da9fc5202a065101baae0fd0d93a7948f20fee94f21b376c6e3", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 /// Need to parse function
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/token.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             _ => Assoc::NONE,
[INFO] [stderr]    |             ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]   --> src/token.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             Op::SUM | Op::MUL | Op::SUB | Op::DIV => Assoc::LEFT,
[INFO] [stderr]    |             ------------------------------------- matches some of the same values
[INFO] [stderr] 64 |             Op::EXP | Op::NEG | Op::FAC => Assoc::RIGHT,
[INFO] [stderr]    |             --------------------------- matches some of the same values
[INFO] [stderr] 65 |             _ => Assoc::NONE,
[INFO] [stderr]    |             ^ collectively making this unreachable
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/token.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             _ => 0,
[INFO] [stderr]    |             ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]   --> src/token.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             Op::NEG => 5,
[INFO] [stderr]    |             ------- matches some of the same values
[INFO] [stderr] 74 |             Op::EXP | Op::FAC => 4,
[INFO] [stderr]    |             ----------------- matches some of the same values
[INFO] [stderr] 75 |             Op::SUB | Op::SUM => 2,
[INFO] [stderr]    |             ----------------- matches some of the same values
[INFO] [stderr] 76 |             Op::MUL | Op::DIV => 3,
[INFO] [stderr]    |             ----------------- matches some of the same values
[INFO] [stderr] 77 |             _ => 0,
[INFO] [stderr]    |             ^ collectively making this unreachable
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lexer.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut is_fn = false;
[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: `exprs` (lib) generated 4 warnings (run `cargo fix --lib -p exprs` to apply 1 suggestion)
[INFO] [stderr] warning: `exprs` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/exprs-43f9dcefbc047cf5)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_builtins ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/exprs-894dd76357b579d7)
[INFO] [stdout] test tests::test_ops ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exprs
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] test src/builtins.rs - builtins::fct (line 3) ... ok
[INFO] [stdout] test src/lexer.rs - lexer::tokenize (line 62) ... ok
[INFO] [stdout] test src/token.rs - token::Op::assoc (line 57) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f0344a6ca671da9fc5202a065101baae0fd0d93a7948f20fee94f21b376c6e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f0344a6ca671da9fc5202a065101baae0fd0d93a7948f20fee94f21b376c6e3", kill_on_drop: false }`
[INFO] [stdout] 5f0344a6ca671da9fc5202a065101baae0fd0d93a7948f20fee94f21b376c6e3
