[INFO] fetching crate jsdu 0.1.0...
[INFO] testing jsdu-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate jsdu 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate jsdu 0.1.0
[INFO] finished tweaking crates.io crate jsdu 0.1.0
[INFO] tweaked toml for crates.io crate jsdu 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate jsdu 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate jsdu 0.1.0 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5f060537dd57aa28af9c422ed08ecb3aa7e00e14fa444fc88d8d30af54b5fad
[INFO] running `Command { std: "docker" "start" "-a" "d5f060537dd57aa28af9c422ed08ecb3aa7e00e14fa444fc88d8d30af54b5fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5f060537dd57aa28af9c422ed08ecb3aa7e00e14fa444fc88d8d30af54b5fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f060537dd57aa28af9c422ed08ecb3aa7e00e14fa444fc88d8d30af54b5fad", kill_on_drop: false }`
[INFO] [stdout] d5f060537dd57aa28af9c422ed08ecb3aa7e00e14fa444fc88d8d30af54b5fad
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc604fdd4a51ed5b6b2693c51b0208d8d2e8535ddbb34a18f0288ae1868c5f74
[INFO] running `Command { std: "docker" "start" "-a" "fc604fdd4a51ed5b6b2693c51b0208d8d2e8535ddbb34a18f0288ae1868c5f74", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling anstyle-query v1.0.3
[INFO] [stderr]    Compiling anstyle v1.0.7
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling colorchoice v1.0.1
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling wild v2.2.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.4
[INFO] [stderr]    Compiling anstream v0.6.14
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling jsdu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/prettify.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_ptr`
[INFO] [stdout]    --> src/size.rs:196:14
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let (c_ptr, c) = *c.unwrap();
[INFO] [stdout]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_c_ptr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 |     mut chars: &mut Peekable<I>,
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut len = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_ptr`
[INFO] [stdout]    --> src/size.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let data_ptr = chars.peek().ok_or(())?.0;
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/size.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut len = 0;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:302:5
[INFO] [stdout]     |
[INFO] [stdout] 302 |     mut chars: &mut Peekable<I>,
[INFO] [stdout]     |     ----^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut len = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_ptr`
[INFO] [stdout]    --> src/size.rs:310:9
[INFO] [stdout]     |
[INFO] [stdout] 310 |     let data_ptr = chars.peek().ok_or(())?.0;
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/size.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut len = 0;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:377:20
[INFO] [stdout]     |
[INFO] [stdout] 377 | fn parse_number<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                    ----^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:478:20
[INFO] [stdout]     |
[INFO] [stdout] 478 | fn parse_string<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                    ----^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:514:25
[INFO] [stdout]     |
[INFO] [stdout] 514 | fn parse_any_keyword<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:548:23
[INFO] [stdout]     |
[INFO] [stdout] 548 | fn skip_whitespace<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize)
[INFO] [stdout]     |                       ----^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.75s
[INFO] running `Command { std: "docker" "inspect" "fc604fdd4a51ed5b6b2693c51b0208d8d2e8535ddbb34a18f0288ae1868c5f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc604fdd4a51ed5b6b2693c51b0208d8d2e8535ddbb34a18f0288ae1868c5f74", kill_on_drop: false }`
[INFO] [stdout] fc604fdd4a51ed5b6b2693c51b0208d8d2e8535ddbb34a18f0288ae1868c5f74
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 476c01ffd4530ff4b2ffa52eb6ccae5048cc58cd59a247d65628917ff5027b43
[INFO] running `Command { std: "docker" "start" "-a" "476c01ffd4530ff4b2ffa52eb6ccae5048cc58cd59a247d65628917ff5027b43", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/prettify.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_ptr`
[INFO] [stdout]    --> src/size.rs:196:14
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let (c_ptr, c) = *c.unwrap();
[INFO] [stdout]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_c_ptr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 |     mut chars: &mut Peekable<I>,
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut len = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_ptr`
[INFO] [stdout]    --> src/size.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let data_ptr = chars.peek().ok_or(())?.0;
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/size.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut len = 0;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:302:5
[INFO] [stdout]     |
[INFO] [stdout] 302 |     mut chars: &mut Peekable<I>,
[INFO] [stdout]     |     ----^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut len = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling jsdu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `data_ptr`
[INFO] [stdout]    --> src/size.rs:310:9
[INFO] [stdout]     |
[INFO] [stdout] 310 |     let data_ptr = chars.peek().ok_or(())?.0;
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/size.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut len = 0;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:377:20
[INFO] [stdout]     |
[INFO] [stdout] 377 | fn parse_number<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                    ----^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:478:20
[INFO] [stdout]     |
[INFO] [stdout] 478 | fn parse_string<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                    ----^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:514:25
[INFO] [stdout]     |
[INFO] [stdout] 514 | fn parse_any_keyword<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:548:23
[INFO] [stdout]     |
[INFO] [stdout] 548 | fn skip_whitespace<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize)
[INFO] [stdout]     |                       ----^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/prettify.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_ptr`
[INFO] [stdout]    --> src/size.rs:196:14
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let (c_ptr, c) = *c.unwrap();
[INFO] [stdout]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_c_ptr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 |     mut chars: &mut Peekable<I>,
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut len = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_ptr`
[INFO] [stdout]    --> src/size.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let data_ptr = chars.peek().ok_or(())?.0;
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/size.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut len = 0;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:302:5
[INFO] [stdout]     |
[INFO] [stdout] 302 |     mut chars: &mut Peekable<I>,
[INFO] [stdout]     |     ----^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut len = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_ptr`
[INFO] [stdout]    --> src/size.rs:310:9
[INFO] [stdout]     |
[INFO] [stdout] 310 |     let data_ptr = chars.peek().ok_or(())?.0;
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/size.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut len = 0;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:377:20
[INFO] [stdout]     |
[INFO] [stdout] 377 | fn parse_number<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                    ----^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:478:20
[INFO] [stdout]     |
[INFO] [stdout] 478 | fn parse_string<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                    ----^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:514:25
[INFO] [stdout]     |
[INFO] [stdout] 514 | fn parse_any_keyword<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/size.rs:548:23
[INFO] [stdout]     |
[INFO] [stdout] 548 | fn skip_whitespace<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize)
[INFO] [stdout]     |                       ----^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "476c01ffd4530ff4b2ffa52eb6ccae5048cc58cd59a247d65628917ff5027b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "476c01ffd4530ff4b2ffa52eb6ccae5048cc58cd59a247d65628917ff5027b43", kill_on_drop: false }`
[INFO] [stdout] 476c01ffd4530ff4b2ffa52eb6ccae5048cc58cd59a247d65628917ff5027b43
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0ea42435952c9f04a3e881dba392165cf1d051b9538e9b4a5972ca876f87b700
[INFO] running `Command { std: "docker" "start" "-a" "0ea42435952c9f04a3e881dba392165cf1d051b9538e9b4a5972ca876f87b700", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::collections::VecDeque`
[INFO] [stderr]  --> src/prettify.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::VecDeque;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c_ptr`
[INFO] [stderr]    --> src/size.rs:196:14
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let (c_ptr, c) = *c.unwrap();
[INFO] [stderr]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_c_ptr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/size.rs:250:5
[INFO] [stderr]     |
[INFO] [stderr] 250 |     mut chars: &mut Peekable<I>,
[INFO] [stderr]     |     ----^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/size.rs:259:9
[INFO] [stderr]     |
[INFO] [stderr] 259 |     let mut len = 0;
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data_ptr`
[INFO] [stderr]    --> src/size.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let data_ptr = chars.peek().ok_or(())?.0;
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/size.rs:259:9
[INFO] [stderr]     |
[INFO] [stderr] 259 |     let mut len = 0;
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/size.rs:302:5
[INFO] [stderr]     |
[INFO] [stderr] 302 |     mut chars: &mut Peekable<I>,
[INFO] [stderr]     |     ----^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/size.rs:311:9
[INFO] [stderr]     |
[INFO] [stderr] 311 |     let mut len = 0;
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data_ptr`
[INFO] [stderr]    --> src/size.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |     let data_ptr = chars.peek().ok_or(())?.0;
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/size.rs:311:9
[INFO] [stderr]     |
[INFO] [stderr] 311 |     let mut len = 0;
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/size.rs:377:20
[INFO] [stderr]     |
[INFO] [stderr] 377 | fn parse_number<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stderr]     |                    ----^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/size.rs:478:20
[INFO] [stderr]     |
[INFO] [stderr] 478 | fn parse_string<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stderr]     |                    ----^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/size.rs:514:25
[INFO] [stderr]     |
[INFO] [stderr] 514 | fn parse_any_keyword<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize) -> Result<(), ()>
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/size.rs:548:23
[INFO] [stderr]     |
[INFO] [stderr] 548 | fn skip_whitespace<I>(mut chars: &mut Peekable<I>, js: &mut JsonSize)
[INFO] [stderr]     |                       ----^^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `jsdu` (lib) generated 14 warnings (run `cargo fix --lib -p jsdu` to apply 14 suggestions)
[INFO] [stderr] warning: `jsdu` (lib test) generated 14 warnings (14 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/jsdu-0b5fb5d3c91376d4)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test minify::tests::it_handles_escaped_characters_in_string ... ok
[INFO] [stdout] test prettify::tests::it_prettifies_json ... ok
[INFO] [stdout] test size::tests::fuzz_1 ... ok
[INFO] [stdout] test size::tests::test_array ... ok
[INFO] [stdout] test size::tests::test_bool_size ... ok
[INFO] [stdout] test size::tests::test_empty_array ... ok
[INFO] [stdout] test size::tests::test_array_3 ... ok
[INFO] [stdout] test size::tests::test_array_num ... ok
[INFO] [stdout] test size::tests::test_empty_string_size ... ok
[INFO] [stdout] test size::tests::test_number_size ... ok
[INFO] [stdout] test size::tests::test_empty_whitespace ... ok
[INFO] [stdout] test size::tests::test_object_3 ... ok
[INFO] [stdout] test size::tests::test_object ... ok
[INFO] [stdout] test size::tests::test_single_string_size ... ok
[INFO] [stdout] test prettify::tests::it_handles_very_nested_objects_and_arrays ... ok
[INFO] [stdout] test size::tests::test_empty_object ... ok
[INFO] [stdout] test minify::tests::it_minifies_json ... ok
[INFO] [stdout] test prettify::tests::it_handles_strings_with_escape_characters ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/jsdu-a034f8cf29b721dd)
[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] [stderr]    Doc-tests jsdu
[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] running `Command { std: "docker" "inspect" "0ea42435952c9f04a3e881dba392165cf1d051b9538e9b4a5972ca876f87b700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ea42435952c9f04a3e881dba392165cf1d051b9538e9b4a5972ca876f87b700", kill_on_drop: false }`
[INFO] [stdout] 0ea42435952c9f04a3e881dba392165cf1d051b9538e9b4a5972ca876f87b700
