[INFO] fetching crate ksynth 0.8.0... [INFO] checking ksynth-0.8.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] extracting crate ksynth 0.8.0 into /workspace/builds/worker-26/source [INFO] validating manifest of crates.io crate ksynth 0.8.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate ksynth 0.8.0 [INFO] finished tweaking crates.io crate ksynth 0.8.0 [INFO] tweaked toml for crates.io crate ksynth 0.8.0 written to /workspace/builds/worker-26/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 61ccd02fc5841c4c220b979db4c6f310901b244cfed663e6910caaa38248ff12 [INFO] running `Command { std: "docker" "start" "-a" "61ccd02fc5841c4c220b979db4c6f310901b244cfed663e6910caaa38248ff12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "61ccd02fc5841c4c220b979db4c6f310901b244cfed663e6910caaa38248ff12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "61ccd02fc5841c4c220b979db4c6f310901b244cfed663e6910caaa38248ff12", kill_on_drop: false }` [INFO] [stdout] 61ccd02fc5841c4c220b979db4c6f310901b244cfed663e6910caaa38248ff12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3532a9948f5c846829b237338ba92a15d7b046072699e18a12470d09ce506c78 [INFO] running `Command { std: "docker" "start" "-a" "3532a9948f5c846829b237338ba92a15d7b046072699e18a12470d09ce506c78", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling serde v1.0.128 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking bit v0.1.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking num-complex v0.4.0 [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Checking num v0.4.0 [INFO] [stderr] Compiling thiserror-impl v1.0.26 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling thiserror v1.0.26 [INFO] [stderr] Compiling proc-macro-crate v1.0.0 [INFO] [stderr] Compiling num_enum_derive v0.5.4 [INFO] [stderr] Checking num_enum v0.5.4 [INFO] [stderr] Checking ksynth v0.8.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `error`, `info`, `warn` [INFO] [stdout] --> src/k4/drum.rs:7:11 [INFO] [stdout] | [INFO] [stdout] 7 | use log::{info, warn, error, debug}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `error`, `info`, `warn` [INFO] [stdout] --> src/k4/bank.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use log::{info, warn, error, debug}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `error`, `info`, `warn` [INFO] [stdout] --> src/k4/drum.rs:7:11 [INFO] [stdout] | [INFO] [stdout] 7 | use log::{info, warn, error, debug}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `error`, `info`, `warn` [INFO] [stdout] --> src/k4/bank.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use log::{info, warn, error, debug}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/lib.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | for (index, value) in v.iter().enumerate() { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/k5000/single.rs:250:13 [INFO] [stdout] | [INFO] [stdout] 250 | for i in 0..common.source_count { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> src/k5000/single.rs:268:17 [INFO] [stdout] | [INFO] [stdout] 268 | let mut count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/k5000/single.rs:316:13 [INFO] [stdout] | [INFO] [stdout] 316 | for i in 0..common.source_count { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `offset` is never read [INFO] [stdout] --> src/k5000/addkit.rs:46:17 [INFO] [stdout] | [INFO] [stdout] 46 | let mut offset = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `start` is never read [INFO] [stdout] --> src/k4/amp.rs:208:17 [INFO] [stdout] | [INFO] [stdout] 208 | let mut start: usize = 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 `end` is never read [INFO] [stdout] --> src/k4/amp.rs:209:17 [INFO] [stdout] | [INFO] [stdout] 209 | let mut end: usize = 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 `start` is never read [INFO] [stdout] --> src/k4/filter.rs:110:17 [INFO] [stdout] | [INFO] [stdout] 110 | let mut start: usize = 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 `end` is never read [INFO] [stdout] --> src/k4/filter.rs:111:17 [INFO] [stdout] | [INFO] [stdout] 111 | let mut end: usize = 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 `end` is never read [INFO] [stdout] --> src/k4/multi.rs:59:17 [INFO] [stdout] | [INFO] [stdout] 59 | let mut end: usize = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/k4/multi.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | for i in 0..SECTION_COUNT { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_name` [INFO] [stdout] --> src/k4/single.rs:196:28 [INFO] [stdout] | [INFO] [stdout] 196 | pub fn set_name(&self, new_name: &str) { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `start` is never read [INFO] [stdout] --> src/k4/single.rs:315:17 [INFO] [stdout] | [INFO] [stdout] 315 | let mut start: usize = 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 `end` is never read [INFO] [stdout] --> src/k4/single.rs:316:17 [INFO] [stdout] | [INFO] [stdout] 316 | let mut end: usize = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `original_checksum` [INFO] [stdout] --> src/k4/single.rs:444:13 [INFO] [stdout] | [INFO] [stdout] 444 | let original_checksum = b; // store the checksum as we got it from SysEx [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_original_checksum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `start` [INFO] [stdout] --> src/k4/source.rs:53:17 [INFO] [stdout] | [INFO] [stdout] 53 | let mut start: usize = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `end` [INFO] [stdout] --> src/k4/source.rs:54:17 [INFO] [stdout] | [INFO] [stdout] 54 | let mut end: usize = 0; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/lib.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | for (index, value) in v.iter().enumerate() { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/k5000/single.rs:250:13 [INFO] [stdout] | [INFO] [stdout] 250 | for i in 0..common.source_count { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> src/k5000/single.rs:268:17 [INFO] [stdout] | [INFO] [stdout] 268 | let mut count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/k5000/single.rs:316:13 [INFO] [stdout] | [INFO] [stdout] 316 | for i in 0..common.source_count { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `offset` is never read [INFO] [stdout] --> src/k5000/addkit.rs:46:17 [INFO] [stdout] | [INFO] [stdout] 46 | let mut offset = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `start` is never read [INFO] [stdout] --> src/k4/amp.rs:208:17 [INFO] [stdout] | [INFO] [stdout] 208 | let mut start: usize = 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 `end` is never read [INFO] [stdout] --> src/k4/amp.rs:209:17 [INFO] [stdout] | [INFO] [stdout] 209 | let mut end: usize = 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 `start` is never read [INFO] [stdout] --> src/k4/filter.rs:110:17 [INFO] [stdout] | [INFO] [stdout] 110 | let mut start: usize = 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 `end` is never read [INFO] [stdout] --> src/k4/filter.rs:111:17 [INFO] [stdout] | [INFO] [stdout] 111 | let mut end: usize = 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 `end` is never read [INFO] [stdout] --> src/k4/multi.rs:59:17 [INFO] [stdout] | [INFO] [stdout] 59 | let mut end: usize = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/k4/multi.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | for i in 0..SECTION_COUNT { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_name` [INFO] [stdout] --> src/k4/single.rs:196:28 [INFO] [stdout] | [INFO] [stdout] 196 | pub fn set_name(&self, new_name: &str) { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `start` is never read [INFO] [stdout] --> src/k4/single.rs:315:17 [INFO] [stdout] | [INFO] [stdout] 315 | let mut start: usize = 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 `end` is never read [INFO] [stdout] --> src/k4/single.rs:316:17 [INFO] [stdout] | [INFO] [stdout] 316 | let mut end: usize = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `original_checksum` [INFO] [stdout] --> src/k4/single.rs:444:13 [INFO] [stdout] | [INFO] [stdout] 444 | let original_checksum = b; // store the checksum as we got it from SysEx [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_original_checksum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `start` [INFO] [stdout] --> src/k4/source.rs:53:17 [INFO] [stdout] | [INFO] [stdout] 53 | let mut start: usize = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `end` [INFO] [stdout] --> src/k4/source.rs:54:17 [INFO] [stdout] | [INFO] [stdout] 54 | let mut end: usize = 0; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/k4/amp.rs:211:13 [INFO] [stdout] | [INFO] [stdout] 211 | let mut b: u8; [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: variable does not need to be mutable [INFO] [stdout] --> src/k4/multi.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 58 | let mut start: usize = 0; [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/k4/source.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | let mut start: usize = 0; [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/k4/source.rs:54:13 [INFO] [stdout] | [INFO] [stdout] 54 | let mut end: usize = 0; [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/k4/amp.rs:211:13 [INFO] [stdout] | [INFO] [stdout] 211 | let mut b: u8; [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: variable does not need to be mutable [INFO] [stdout] --> src/k4/multi.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 58 | let mut start: usize = 0; [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/k4/source.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | let mut start: usize = 0; [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/k4/source.rs:54:13 [INFO] [stdout] | [INFO] [stdout] 54 | let mut end: usize = 0; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 25.53s [INFO] running `Command { std: "docker" "inspect" "3532a9948f5c846829b237338ba92a15d7b046072699e18a12470d09ce506c78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3532a9948f5c846829b237338ba92a15d7b046072699e18a12470d09ce506c78", kill_on_drop: false }` [INFO] [stdout] 3532a9948f5c846829b237338ba92a15d7b046072699e18a12470d09ce506c78