[INFO] cloning repository https://github.com/GustavoYamauchi/Lexer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GustavoYamauchi/Lexer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoYamauchi%2FLexer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoYamauchi%2FLexer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 670083e72c136a345c74a1d6dea1168dfa738748
[INFO] documenting GustavoYamauchi/Lexer against 1.76.0 for beta-1.77-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoYamauchi%2FLexer" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GustavoYamauchi/Lexer on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GustavoYamauchi/Lexer
[INFO] finished tweaking git repo https://github.com/GustavoYamauchi/Lexer
[INFO] tweaked toml for git repo https://github.com/GustavoYamauchi/Lexer written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GustavoYamauchi/Lexer 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00e033922edd2f27438b8fcbdd8ecdceaa32af53f0cef225d4eef5a568ae4010
[INFO] running `Command { std: "docker" "start" "-a" "00e033922edd2f27438b8fcbdd8ecdceaa32af53f0cef225d4eef5a568ae4010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00e033922edd2f27438b8fcbdd8ecdceaa32af53f0cef225d4eef5a568ae4010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e033922edd2f27438b8fcbdd8ecdceaa32af53f0cef225d4eef5a568ae4010", kill_on_drop: false }`
[INFO] [stdout] 00e033922edd2f27438b8fcbdd8ecdceaa32af53f0cef225d4eef5a568ae4010
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d6a9fee1e8dd8eed8a94ea49140c2cc4c1ae95b02620da2a2c6b1aaa85501b3
[INFO] running `Command { std: "docker" "start" "-a" "6d6a9fee1e8dd8eed8a94ea49140c2cc4c1ae95b02620da2a2c6b1aaa85501b3", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: cli v0.1.0 (/opt/rustwide/workdir/cli) ignoring invalid dependency `parser` which is missing a lib target
[INFO] [stderr]     Checking lexer v0.1.0 (/opt/rustwide/workdir/lexer)
[INFO] [stderr]  Documenting lexer v0.1.0 (/opt/rustwide/workdir/lexer)
[INFO] [stderr]  Documenting cli v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]   --> lexer/src/lib.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 let mut typ = 0;
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> lexer/src/lib.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 let mut typ = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> lexer/src/lib.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 let mut typ = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> lexer/src/lib.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 let mut typ = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_char`
[INFO] [stdout]    --> lexer/src/lib.rs:293:72
[INFO] [stdout]     |
[INFO] [stdout] 293 |     fn mt_operator(&self, state: i32, list: &Vec<char>, mut index: usize, last_char: char) -> (usize, bool) {
[INFO] [stdout]     |                                                                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_char`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> lexer/src/lib.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 |         if previous_index < 0{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stdout] warning: type `Ret_variable` should have an upper camel case name
[INFO] [stdout]   --> parser/src/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Ret_variable {
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RetVariable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/cli/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/lexer/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/parser/index.html
[INFO] running `Command { std: "docker" "inspect" "6d6a9fee1e8dd8eed8a94ea49140c2cc4c1ae95b02620da2a2c6b1aaa85501b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d6a9fee1e8dd8eed8a94ea49140c2cc4c1ae95b02620da2a2c6b1aaa85501b3", kill_on_drop: false }`
[INFO] [stdout] 6d6a9fee1e8dd8eed8a94ea49140c2cc4c1ae95b02620da2a2c6b1aaa85501b3
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 760deed8dce26e46a9c889c7adb5fa098abce967020f0544b773152ffac6f6e0
[INFO] running `Command { std: "docker" "start" "-a" "760deed8dce26e46a9c889c7adb5fa098abce967020f0544b773152ffac6f6e0", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "760deed8dce26e46a9c889c7adb5fa098abce967020f0544b773152ffac6f6e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "760deed8dce26e46a9c889c7adb5fa098abce967020f0544b773152ffac6f6e0", kill_on_drop: false }`
[INFO] [stdout] 760deed8dce26e46a9c889c7adb5fa098abce967020f0544b773152ffac6f6e0
[INFO] documenting GustavoYamauchi/Lexer against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoYamauchi%2FLexer" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GustavoYamauchi/Lexer on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GustavoYamauchi/Lexer
[INFO] finished tweaking git repo https://github.com/GustavoYamauchi/Lexer
[INFO] tweaked toml for git repo https://github.com/GustavoYamauchi/Lexer written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/GustavoYamauchi/Lexer 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" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78f763385158f92b76f6b8d493bd43c3486dfc58e3e72437c951a26934889be9
[INFO] running `Command { std: "docker" "start" "-a" "78f763385158f92b76f6b8d493bd43c3486dfc58e3e72437c951a26934889be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78f763385158f92b76f6b8d493bd43c3486dfc58e3e72437c951a26934889be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78f763385158f92b76f6b8d493bd43c3486dfc58e3e72437c951a26934889be9", kill_on_drop: false }`
[INFO] [stdout] 78f763385158f92b76f6b8d493bd43c3486dfc58e3e72437c951a26934889be9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d21c6f00744f8e0fde13169157f47e29d4460d4cdb0aee1651a486aec26628c1
[INFO] running `Command { std: "docker" "start" "-a" "d21c6f00744f8e0fde13169157f47e29d4460d4cdb0aee1651a486aec26628c1", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: cli v0.1.0 (/opt/rustwide/workdir/cli) ignoring invalid dependency `parser` which is missing a lib target
[INFO] [stderr]     Checking lexer v0.1.0 (/opt/rustwide/workdir/lexer)
[INFO] [stderr]  Documenting lexer v0.1.0 (/opt/rustwide/workdir/lexer)
[INFO] [stderr]  Documenting cli v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]   --> lexer/src/lib.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 let mut typ = 0;
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> lexer/src/lib.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 let mut typ = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> lexer/src/lib.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 let mut typ = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> lexer/src/lib.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 let mut typ = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_char`
[INFO] [stdout]    --> lexer/src/lib.rs:293:72
[INFO] [stdout]     |
[INFO] [stdout] 293 |     fn mt_operator(&self, state: i32, list: &Vec<char>, mut index: usize, last_char: char) -> (usize, bool) {
[INFO] [stdout]     |                                                                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_char`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> lexer/src/lib.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 |         if previous_index < 0{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stdout] warning: type `Ret_variable` should have an upper camel case name
[INFO] [stdout]   --> parser/src/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Ret_variable {
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RetVariable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/cli/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/lexer/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/parser/index.html
[INFO] running `Command { std: "docker" "inspect" "d21c6f00744f8e0fde13169157f47e29d4460d4cdb0aee1651a486aec26628c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d21c6f00744f8e0fde13169157f47e29d4460d4cdb0aee1651a486aec26628c1", kill_on_drop: false }`
[INFO] [stdout] d21c6f00744f8e0fde13169157f47e29d4460d4cdb0aee1651a486aec26628c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6951a4a4265ea96f44dd08092029de8dab20b869101af63735b58fbfc99cc0f
[INFO] running `Command { std: "docker" "start" "-a" "f6951a4a4265ea96f44dd08092029de8dab20b869101af63735b58fbfc99cc0f", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "f6951a4a4265ea96f44dd08092029de8dab20b869101af63735b58fbfc99cc0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6951a4a4265ea96f44dd08092029de8dab20b869101af63735b58fbfc99cc0f", kill_on_drop: false }`
[INFO] [stdout] f6951a4a4265ea96f44dd08092029de8dab20b869101af63735b58fbfc99cc0f
