[INFO] crate ur20 0.5.0 is already in cache [INFO] extracting crate ur20 0.5.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/ur20/0.5.0 [INFO] extracting crate ur20 0.5.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/ur20/0.5.0 [INFO] validating manifest of ur20-0.5.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ur20-0.5.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing ur20-0.5.0 [INFO] finished frobbing ur20-0.5.0 [INFO] frobbed toml for ur20-0.5.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/ur20/0.5.0/Cargo.toml [INFO] started frobbing ur20-0.5.0 [INFO] finished frobbing ur20-0.5.0 [INFO] frobbed toml for ur20-0.5.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/ur20/0.5.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking ur20-0.5.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/ur20/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 6c1b0e060c92af5c851c9ace44e54568643bd9936ba76f1bcbd952f4a6686526 [INFO] running `"docker" "start" "-a" "6c1b0e060c92af5c851c9ace44e54568643bd9936ba76f1bcbd952f4a6686526"` [INFO] [stderr] Checking ur20 v0.5.0 (/opt/crater/workdir) [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/ur20_1com_232_485_422.rs:576:10 [INFO] [stderr] | [INFO] [stderr] 576 | 0...255 => (data[8] as u8) as char, [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/ur20_1com_232_485_422.rs:583:10 [INFO] [stderr] | [INFO] [stderr] 583 | 0...255 => (data[9] as u8) as char, [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:197:63 [INFO] [stderr] | [INFO] [stderr] 197 | pub fn reader(&mut self, module_nr: usize) -> Option<&mut Read> { [INFO] [stderr] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:198:63 [INFO] [stderr] | [INFO] [stderr] 198 | self.processors.get_mut(&module_nr).map(|r| r as &mut Read) [INFO] [stderr] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:202:63 [INFO] [stderr] | [INFO] [stderr] 202 | pub fn writer(&mut self, module_nr: usize) -> Option<&mut Write> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:203:63 [INFO] [stderr] | [INFO] [stderr] 203 | self.processors.get_mut(&module_nr).map(|r| r as &mut Write) [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:304:18 [INFO] [stderr] | [INFO] [stderr] 304 | modules: &[(&ProcessModbusTcpData, &ModuleOffset)], [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:327:18 [INFO] [stderr] | [INFO] [stderr] 327 | modules: &[(&ProcessModbusTcpData, &ModuleOffset)], [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:379:18 [INFO] [stderr] | [INFO] [stderr] 379 | modules: &[(&ProcessModbusTcpData, &ModuleOffset)], [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/ur20_1com_232_485_422.rs:576:10 [INFO] [stderr] | [INFO] [stderr] 576 | 0...255 => (data[8] as u8) as char, [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/ur20_1com_232_485_422.rs:583:10 [INFO] [stderr] | [INFO] [stderr] 583 | 0...255 => (data[9] as u8) as char, [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:197:63 [INFO] [stderr] | [INFO] [stderr] 197 | pub fn reader(&mut self, module_nr: usize) -> Option<&mut Read> { [INFO] [stderr] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:198:63 [INFO] [stderr] | [INFO] [stderr] 198 | self.processors.get_mut(&module_nr).map(|r| r as &mut Read) [INFO] [stderr] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:202:63 [INFO] [stderr] | [INFO] [stderr] 202 | pub fn writer(&mut self, module_nr: usize) -> Option<&mut Write> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:203:63 [INFO] [stderr] | [INFO] [stderr] 203 | self.processors.get_mut(&module_nr).map(|r| r as &mut Write) [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:304:18 [INFO] [stderr] | [INFO] [stderr] 304 | modules: &[(&ProcessModbusTcpData, &ModuleOffset)], [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:327:18 [INFO] [stderr] | [INFO] [stderr] 327 | modules: &[(&ProcessModbusTcpData, &ModuleOffset)], [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:379:18 [INFO] [stderr] | [INFO] [stderr] 379 | modules: &[(&ProcessModbusTcpData, &ModuleOffset)], [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:570:20 [INFO] [stderr] | [INFO] [stderr] 570 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:571:20 [INFO] [stderr] | [INFO] [stderr] 571 | let mod1: &ProcessModbusTcpData = &m1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:572:20 [INFO] [stderr] | [INFO] [stderr] 572 | let mod2: &ProcessModbusTcpData = &m2; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:573:20 [INFO] [stderr] | [INFO] [stderr] 573 | let mod3: &ProcessModbusTcpData = &m3; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:614:20 [INFO] [stderr] | [INFO] [stderr] 614 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:630:20 [INFO] [stderr] | [INFO] [stderr] 630 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:631:20 [INFO] [stderr] | [INFO] [stderr] 631 | let mod1: &ProcessModbusTcpData = &m1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:661:20 [INFO] [stderr] | [INFO] [stderr] 661 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:662:20 [INFO] [stderr] | [INFO] [stderr] 662 | let mod1: &ProcessModbusTcpData = &m1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:663:20 [INFO] [stderr] | [INFO] [stderr] 663 | let mod2: &ProcessModbusTcpData = &m2; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:664:20 [INFO] [stderr] | [INFO] [stderr] 664 | let mod3: &ProcessModbusTcpData = &m3; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:706:20 [INFO] [stderr] | [INFO] [stderr] 706 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:722:20 [INFO] [stderr] | [INFO] [stderr] 722 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:723:20 [INFO] [stderr] | [INFO] [stderr] 723 | let mod1: &ProcessModbusTcpData = &m1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:750:20 [INFO] [stderr] | [INFO] [stderr] 750 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:751:20 [INFO] [stderr] | [INFO] [stderr] 751 | let mod1: &ProcessModbusTcpData = &m1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:785:20 [INFO] [stderr] | [INFO] [stderr] 785 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:786:20 [INFO] [stderr] | [INFO] [stderr] 786 | let mod1: &ProcessModbusTcpData = &m1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:826:20 [INFO] [stderr] | [INFO] [stderr] 826 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:827:20 [INFO] [stderr] | [INFO] [stderr] 827 | let mod1: &ProcessModbusTcpData = &m1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:828:20 [INFO] [stderr] | [INFO] [stderr] 828 | let mod2: &ProcessModbusTcpData = &m2; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:860:20 [INFO] [stderr] | [INFO] [stderr] 860 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:902:20 [INFO] [stderr] | [INFO] [stderr] 902 | let mod0: &ProcessModbusTcpData = &m0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:903:20 [INFO] [stderr] | [INFO] [stderr] 903 | let mod1: &ProcessModbusTcpData = &m1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:904:20 [INFO] [stderr] | [INFO] [stderr] 904 | let mod2: &ProcessModbusTcpData = &m2; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:905:20 [INFO] [stderr] | [INFO] [stderr] 905 | let mod3: &ProcessModbusTcpData = &m3; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProcessModbusTcpData` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:229:25 [INFO] [stderr] | [INFO] [stderr] 229 | if let Some(mut p) = self.processors.get_mut(&m_nr) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/ur20_fbc_mod_tcp.rs:229:25 [INFO] [stderr] | [INFO] [stderr] 229 | if let Some(mut p) = self.processors.get_mut(&m_nr) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.59s [INFO] running `"docker" "inspect" "6c1b0e060c92af5c851c9ace44e54568643bd9936ba76f1bcbd952f4a6686526"` [INFO] running `"docker" "rm" "-f" "6c1b0e060c92af5c851c9ace44e54568643bd9936ba76f1bcbd952f4a6686526"` [INFO] [stdout] 6c1b0e060c92af5c851c9ace44e54568643bd9936ba76f1bcbd952f4a6686526