[INFO] cloning repository https://github.com/vlad-onis/json_parser_rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vlad-onis/json_parser_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlad-onis%2Fjson_parser_rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlad-onis%2Fjson_parser_rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d4568c453cffb35e088218b6823943e6120bd1d6 [INFO] checking vlad-onis/json_parser_rs against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlad-onis%2Fjson_parser_rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/vlad-onis/json_parser_rs [INFO] removed 0 missing tests [INFO] finished tweaking git repo https://github.com/vlad-onis/json_parser_rs [INFO] tweaked toml for git repo https://github.com/vlad-onis/json_parser_rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/vlad-onis/json_parser_rs on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/vlad-onis/json_parser_rs 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8c3a03dc405acd147d0e85619b5819078544d40a940dda8ff0030de937fdf003 [INFO] running `Command { std: "docker" "start" "-a" "8c3a03dc405acd147d0e85619b5819078544d40a940dda8ff0030de937fdf003", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8c3a03dc405acd147d0e85619b5819078544d40a940dda8ff0030de937fdf003", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c3a03dc405acd147d0e85619b5819078544d40a940dda8ff0030de937fdf003", kill_on_drop: false }` [INFO] [stdout] 8c3a03dc405acd147d0e85619b5819078544d40a940dda8ff0030de937fdf003 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 74ab27f91204e6a8f68dda9a28124c93f4270163aa64fb765939b047ea9c3a54 [INFO] running `Command { std: "docker" "start" "-a" "74ab27f91204e6a8f68dda9a28124c93f4270163aa64fb765939b047ea9c3a54", kill_on_drop: false }` [INFO] [stderr] Compiling thiserror v1.0.44 [INFO] [stderr] Compiling syn v2.0.27 [INFO] [stderr] Compiling thiserror-impl v1.0.44 [INFO] [stderr] Checking json_parser_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/json/syntactic_analyzer.rs:98:21 [INFO] [stdout] | [INFO] [stdout] 98 | pub fn parse_object(mut token_stream: &mut [Token]) -> Result { [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `token_stream` is never read [INFO] [stdout] --> src/json/syntactic_analyzer.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | token_stream = &mut token_stream[1..]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: you might have meant to mutate the pointed at value being passed in, instead of changing the reference in the local binding [INFO] [stdout] | [INFO] [stdout] 103 ~ pub fn parse_object_members(token_stream: &mut [Token]) -> Result, ParseError> { [INFO] [stdout] 104 | let mut pair_index = 0; [INFO] [stdout] ... [INFO] [stdout] 114 | Err(ParseError::EmptyObject) => { [INFO] [stdout] 115 ~ *token_stream = token_stream[1..]; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token_stream` [INFO] [stdout] --> src/json/syntactic_analyzer.rs:164:20 [INFO] [stdout] | [INFO] [stdout] 164 | pub fn parse_array(token_stream: &Vec, current_index: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_stream` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `current_index` [INFO] [stdout] --> src/json/syntactic_analyzer.rs:164:47 [INFO] [stdout] | [INFO] [stdout] 164 | pub fn parse_array(token_stream: &Vec, current_index: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token_stream` [INFO] [stdout] --> src/json/syntactic_analyzer.rs:168:29 [INFO] [stdout] | [INFO] [stdout] 168 | pub fn parse_array_elements(token_stream: &Vec, current_index: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_stream` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `current_index` [INFO] [stdout] --> src/json/syntactic_analyzer.rs:168:56 [INFO] [stdout] | [INFO] [stdout] 168 | pub fn parse_array_elements(token_stream: &Vec, current_index: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `parse` [INFO] [stdout] --> tests/integration_tests.rs:8:36 [INFO] [stdout] | [INFO] [stdout] 8 | syntactic_analyzer::{self, parse, JsonPair, JsonValue, ParseError}, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/json/syntactic_analyzer.rs:98:21 [INFO] [stdout] | [INFO] [stdout] 98 | pub fn parse_object(mut token_stream: &mut [Token]) -> Result { [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `token_stream` is never read [INFO] [stdout] --> src/json/syntactic_analyzer.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | token_stream = &mut token_stream[1..]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: you might have meant to mutate the pointed at value being passed in, instead of changing the reference in the local binding [INFO] [stdout] | [INFO] [stdout] 103 ~ pub fn parse_object_members(token_stream: &mut [Token]) -> Result, ParseError> { [INFO] [stdout] 104 | let mut pair_index = 0; [INFO] [stdout] ... [INFO] [stdout] 114 | Err(ParseError::EmptyObject) => { [INFO] [stdout] 115 ~ *token_stream = token_stream[1..]; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token_stream` [INFO] [stdout] --> src/json/syntactic_analyzer.rs:164:20 [INFO] [stdout] | [INFO] [stdout] 164 | pub fn parse_array(token_stream: &Vec, current_index: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_stream` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `current_index` [INFO] [stdout] --> src/json/syntactic_analyzer.rs:164:47 [INFO] [stdout] | [INFO] [stdout] 164 | pub fn parse_array(token_stream: &Vec, current_index: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token_stream` [INFO] [stdout] --> src/json/syntactic_analyzer.rs:168:29 [INFO] [stdout] | [INFO] [stdout] 168 | pub fn parse_array_elements(token_stream: &Vec, current_index: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_stream` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `current_index` [INFO] [stdout] --> src/json/syntactic_analyzer.rs:168:56 [INFO] [stdout] | [INFO] [stdout] 168 | pub fn parse_array_elements(token_stream: &Vec, current_index: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:387:29 [INFO] [stdout] | [INFO] [stdout] 387 | let expected = vec!['{'.try_into().unwrap(), '}'.try_into().unwrap()]; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:387:54 [INFO] [stdout] | [INFO] [stdout] 387 | let expected = vec!['{'.try_into().unwrap(), '}'.try_into().unwrap()]; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:403:13 [INFO] [stdout] | [INFO] [stdout] 403 | '{'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:405:13 [INFO] [stdout] | [INFO] [stdout] 405 | ':'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:407:13 [INFO] [stdout] | [INFO] [stdout] 407 | '}'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:470:13 [INFO] [stdout] | [INFO] [stdout] 470 | '{'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:472:13 [INFO] [stdout] | [INFO] [stdout] 472 | ':'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:474:13 [INFO] [stdout] | [INFO] [stdout] 474 | '}'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:526:13 [INFO] [stdout] | [INFO] [stdout] 526 | '{'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:528:13 [INFO] [stdout] | [INFO] [stdout] 528 | ':'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:530:13 [INFO] [stdout] | [INFO] [stdout] 530 | '}'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:550:13 [INFO] [stdout] | [INFO] [stdout] 550 | '{'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:552:13 [INFO] [stdout] | [INFO] [stdout] 552 | ':'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:555:13 [INFO] [stdout] | [INFO] [stdout] 555 | ':'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:558:13 [INFO] [stdout] | [INFO] [stdout] 558 | ':'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:561:13 [INFO] [stdout] | [INFO] [stdout] 561 | ':'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/json/lexer.rs:563:13 [INFO] [stdout] | [INFO] [stdout] 563 | '}'.try_into().unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `json_parser_rs` (lib test) due to 17 previous errors; 6 warnings emitted [INFO] running `Command { std: "docker" "inspect" "74ab27f91204e6a8f68dda9a28124c93f4270163aa64fb765939b047ea9c3a54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74ab27f91204e6a8f68dda9a28124c93f4270163aa64fb765939b047ea9c3a54", kill_on_drop: false }` [INFO] [stdout] 74ab27f91204e6a8f68dda9a28124c93f4270163aa64fb765939b047ea9c3a54