[INFO] fetching crate bitutils2 0.1.1...
[INFO] checking bitutils2-0.1.1 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate bitutils2 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate bitutils2 0.1.1 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitutils2 0.1.1
[INFO] finished tweaking crates.io crate bitutils2 0.1.1
[INFO] tweaked toml for crates.io crate bitutils2 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdafa4fad8997207631450466a45fa4ed2f0a3c27ba653f94080da418e7c6f14
[INFO] running `Command { std: "docker" "start" "-a" "fdafa4fad8997207631450466a45fa4ed2f0a3c27ba653f94080da418e7c6f14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdafa4fad8997207631450466a45fa4ed2f0a3c27ba653f94080da418e7c6f14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdafa4fad8997207631450466a45fa4ed2f0a3c27ba653f94080da418e7c6f14", kill_on_drop: false }`
[INFO] [stdout] fdafa4fad8997207631450466a45fa4ed2f0a3c27ba653f94080da418e7c6f14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 798aaa79f322e48de82fce35b7a4a240d33e7ecf9acdc188742f70872f3984ca
[INFO] running `Command { std: "docker" "start" "-a" "798aaa79f322e48de82fce35b7a4a240d33e7ecf9acdc188742f70872f3984ca", kill_on_drop: false }`
[INFO] [stderr]     Checking bitutils2 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `EscapeIter`
[INFO] [stdout]   --> src/bin_regex/mod.rs:57:39
[INFO] [stdout]    |
[INFO] [stdout] 57 | use crate::bin_regex::parse_helpers::{EscapeIter, escape_vec, find_right_delimiter};
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EscapeIter`
[INFO] [stdout]   --> src/bin_regex/mod.rs:57:39
[INFO] [stdout]    |
[INFO] [stdout] 57 | use crate::bin_regex::parse_helpers::{EscapeIter, escape_vec, find_right_delimiter};
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin_regex/parse_helpers.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut input_iter = escape_slice(&input[start..]);
[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 variable: `escaped`
[INFO] [stdout]    --> src/bin_regex/mod.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut escaped = false;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_escaped`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/bin_regex/mod.rs:211:26
[INFO] [stdout]     |
[INFO] [stdout] 211 |                     Some(p) if range_started => return Err("Unexpected '-' encountered after '-'".to_string()),
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/bin_regex/mod.rs:212:26
[INFO] [stdout]     |
[INFO] [stdout] 212 |                     Some(p) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin_regex/mod.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut escaped = false;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n0`
[INFO] [stdout]    --> src/bin_regex/mod.rs:312:48
[INFO] [stdout]     |
[INFO] [stdout] 312 |                     RangeParseProgress::TwoDot(n0) => {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_n0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n0`
[INFO] [stdout]    --> src/bin_regex/mod.rs:319:48
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     RangeParseProgress::OneDot(n0) => {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_n0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin_regex/mod.rs:594:13
[INFO] [stdout]     |
[INFO] [stdout] 594 |         for mut transition in transitions {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin_regex/mod.rs:889:39
[INFO] [stdout]     |
[INFO] [stdout] 889 | fn check_state_flags<T: BitIndexable>(input: &T, flags: &Vec<StateFlag>, offset: BitIndex) -> bool {
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TextEncoding` is never used
[INFO] [stdout]    --> src/bin_regex/mod.rs:126:6
[INFO] [stdout]     |
[INFO] [stdout] 126 | enum TextEncoding {
[INFO] [stdout]     |      ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `escape_str` is never used
[INFO] [stdout]  --> src/bin_regex/parse_helpers.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn escape_str(input: &str) -> EscapeIter<std::str::Chars> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin_regex/parse_helpers.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut input_iter = escape_slice(&input[start..]);
[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 variable: `escaped`
[INFO] [stdout]    --> src/bin_regex/mod.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut escaped = false;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_escaped`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/bin_regex/mod.rs:211:26
[INFO] [stdout]     |
[INFO] [stdout] 211 |                     Some(p) if range_started => return Err("Unexpected '-' encountered after '-'".to_string()),
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/bin_regex/mod.rs:212:26
[INFO] [stdout]     |
[INFO] [stdout] 212 |                     Some(p) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin_regex/mod.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut escaped = false;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n0`
[INFO] [stdout]    --> src/bin_regex/mod.rs:312:48
[INFO] [stdout]     |
[INFO] [stdout] 312 |                     RangeParseProgress::TwoDot(n0) => {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_n0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n0`
[INFO] [stdout]    --> src/bin_regex/mod.rs:319:48
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     RangeParseProgress::OneDot(n0) => {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_n0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin_regex/mod.rs:594:13
[INFO] [stdout]     |
[INFO] [stdout] 594 |         for mut transition in transitions {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin_regex/mod.rs:889:39
[INFO] [stdout]     |
[INFO] [stdout] 889 | fn check_state_flags<T: BitIndexable>(input: &T, flags: &Vec<StateFlag>, offset: BitIndex) -> bool {
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TextEncoding` is never used
[INFO] [stdout]    --> src/bin_regex/mod.rs:126:6
[INFO] [stdout]     |
[INFO] [stdout] 126 | enum TextEncoding {
[INFO] [stdout]     |      ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `escape_str` is never used
[INFO] [stdout]  --> src/bin_regex/parse_helpers.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn escape_str(input: &str) -> EscapeIter<std::str::Chars> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "798aaa79f322e48de82fce35b7a4a240d33e7ecf9acdc188742f70872f3984ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798aaa79f322e48de82fce35b7a4a240d33e7ecf9acdc188742f70872f3984ca", kill_on_drop: false }`
[INFO] [stdout] 798aaa79f322e48de82fce35b7a4a240d33e7ecf9acdc188742f70872f3984ca
[INFO] checking bitutils2-0.1.1 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate bitutils2 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate bitutils2 0.1.1 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitutils2 0.1.1
[INFO] finished tweaking crates.io crate bitutils2 0.1.1
[INFO] tweaked toml for crates.io crate bitutils2 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b9d045b53c6010f701a95c556b14808e11c0e51a67ea278b8aa3a88bb0cfb2f
[INFO] running `Command { std: "docker" "start" "-a" "4b9d045b53c6010f701a95c556b14808e11c0e51a67ea278b8aa3a88bb0cfb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b9d045b53c6010f701a95c556b14808e11c0e51a67ea278b8aa3a88bb0cfb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b9d045b53c6010f701a95c556b14808e11c0e51a67ea278b8aa3a88bb0cfb2f", kill_on_drop: false }`
[INFO] [stdout] 4b9d045b53c6010f701a95c556b14808e11c0e51a67ea278b8aa3a88bb0cfb2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1e20b7ab045568dbeee726e51c9deaec3adf385541c8e3f06efc3a27f0dd8a4
[INFO] running `Command { std: "docker" "start" "-a" "c1e20b7ab045568dbeee726e51c9deaec3adf385541c8e3f06efc3a27f0dd8a4", kill_on_drop: false }`
[INFO] [stderr]     Checking bitutils2 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `EscapeIter`
[INFO] [stdout]   --> src/bin_regex/mod.rs:57:39
[INFO] [stdout]    |
[INFO] [stdout] 57 | use crate::bin_regex::parse_helpers::{EscapeIter, escape_vec, find_right_delimiter};
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EscapeIter`
[INFO] [stdout]   --> src/bin_regex/mod.rs:57:39
[INFO] [stdout]    |
[INFO] [stdout] 57 | use crate::bin_regex::parse_helpers::{EscapeIter, escape_vec, find_right_delimiter};
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin_regex/parse_helpers.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut input_iter = escape_slice(&input[start..]);
[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 variable: `escaped`
[INFO] [stdout]    --> src/bin_regex/mod.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut escaped = false;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_escaped`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/bin_regex/mod.rs:211:26
[INFO] [stdout]     |
[INFO] [stdout] 211 |                     Some(p) if range_started => return Err("Unexpected '-' encountered after '-'".to_string()),
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/bin_regex/mod.rs:212:26
[INFO] [stdout]     |
[INFO] [stdout] 212 |                     Some(p) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin_regex/mod.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut escaped = false;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n0`
[INFO] [stdout]    --> src/bin_regex/mod.rs:312:48
[INFO] [stdout]     |
[INFO] [stdout] 312 |                     RangeParseProgress::TwoDot(n0) => {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_n0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n0`
[INFO] [stdout]    --> src/bin_regex/mod.rs:319:48
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     RangeParseProgress::OneDot(n0) => {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_n0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin_regex/mod.rs:594:13
[INFO] [stdout]     |
[INFO] [stdout] 594 |         for mut transition in transitions {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin_regex/mod.rs:889:39
[INFO] [stdout]     |
[INFO] [stdout] 889 | fn check_state_flags<T: BitIndexable>(input: &T, flags: &Vec<StateFlag>, offset: BitIndex) -> bool {
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TextEncoding` is never used
[INFO] [stdout]    --> src/bin_regex/mod.rs:126:6
[INFO] [stdout]     |
[INFO] [stdout] 126 | enum TextEncoding {
[INFO] [stdout]     |      ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `escape_str` is never used
[INFO] [stdout]  --> src/bin_regex/parse_helpers.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn escape_str(input: &str) -> EscapeIter<std::str::Chars> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin_regex/parse_helpers.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut input_iter = escape_slice(&input[start..]);
[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 variable: `escaped`
[INFO] [stdout]    --> src/bin_regex/mod.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut escaped = false;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_escaped`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/bin_regex/mod.rs:211:26
[INFO] [stdout]     |
[INFO] [stdout] 211 |                     Some(p) if range_started => return Err("Unexpected '-' encountered after '-'".to_string()),
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/bin_regex/mod.rs:212:26
[INFO] [stdout]     |
[INFO] [stdout] 212 |                     Some(p) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin_regex/mod.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut escaped = false;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n0`
[INFO] [stdout]    --> src/bin_regex/mod.rs:312:48
[INFO] [stdout]     |
[INFO] [stdout] 312 |                     RangeParseProgress::TwoDot(n0) => {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_n0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n0`
[INFO] [stdout]    --> src/bin_regex/mod.rs:319:48
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     RangeParseProgress::OneDot(n0) => {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_n0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin_regex/mod.rs:594:13
[INFO] [stdout]     |
[INFO] [stdout] 594 |         for mut transition in transitions {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin_regex/mod.rs:889:39
[INFO] [stdout]     |
[INFO] [stdout] 889 | fn check_state_flags<T: BitIndexable>(input: &T, flags: &Vec<StateFlag>, offset: BitIndex) -> bool {
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TextEncoding` is never used
[INFO] [stdout]    --> src/bin_regex/mod.rs:126:6
[INFO] [stdout]     |
[INFO] [stdout] 126 | enum TextEncoding {
[INFO] [stdout]     |      ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `escape_str` is never used
[INFO] [stdout]  --> src/bin_regex/parse_helpers.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn escape_str(input: &str) -> EscapeIter<std::str::Chars> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "c1e20b7ab045568dbeee726e51c9deaec3adf385541c8e3f06efc3a27f0dd8a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e20b7ab045568dbeee726e51c9deaec3adf385541c8e3f06efc3a27f0dd8a4", kill_on_drop: false }`
[INFO] [stdout] c1e20b7ab045568dbeee726e51c9deaec3adf385541c8e3f06efc3a27f0dd8a4
