[INFO] fetching crate inquire-cli 0.1.0... [INFO] checking inquire-cli-0.1.0 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3 [INFO] extracting crate inquire-cli 0.1.0 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate inquire-cli 0.1.0 [INFO] finished tweaking crates.io crate inquire-cli 0.1.0 [INFO] tweaked toml for crates.io crate inquire-cli 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate inquire-cli 0.1.0 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate inquire-cli 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded clap_derive v3.1.18 [INFO] [stderr] Downloaded os_str_bytes v6.0.1 [INFO] [stderr] Downloaded clap v3.1.18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6900fbf2f82bcf020ca793af0c1b15bf7d4324a75e44e88ad8d72308fd14a1e1 [INFO] running `Command { std: "docker" "start" "-a" "6900fbf2f82bcf020ca793af0c1b15bf7d4324a75e44e88ad8d72308fd14a1e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6900fbf2f82bcf020ca793af0c1b15bf7d4324a75e44e88ad8d72308fd14a1e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6900fbf2f82bcf020ca793af0c1b15bf7d4324a75e44e88ad8d72308fd14a1e1", kill_on_drop: false }` [INFO] [stdout] 6900fbf2f82bcf020ca793af0c1b15bf7d4324a75e44e88ad8d72308fd14a1e1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b9cb08a42d21dd115282ed4bcfd99309a68a83d2c186cc153a4b6d371af7c234 [INFO] running `Command { std: "docker" "start" "-a" "b9cb08a42d21dd115282ed4bcfd99309a68a83d2c186cc153a4b6d371af7c234", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.38 [INFO] [stderr] Compiling unicode-xid v0.2.3 [INFO] [stderr] Compiling syn v1.0.94 [INFO] [stderr] Checking os_str_bytes v6.0.1 [INFO] [stderr] Checking newline-converter v0.2.0 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termion v1.5.6 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking clap_lex v0.2.0 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling thiserror-impl v1.0.31 [INFO] [stderr] Compiling clap_derive v3.1.18 [INFO] [stderr] Checking thiserror v1.0.31 [INFO] [stderr] Checking inquire v0.2.1 [INFO] [stderr] Checking clap v3.1.18 [INFO] [stderr] Checking inquire-cli v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io; [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 import: `std::io` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let mut cfgs; [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/main.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let mut answer_conf = read_answer_conf(&args); [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/main.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | let mut answer_conf; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `answer_conf` is assigned to, but never used [INFO] [stdout] --> src/main.rs:95:41 [INFO] [stdout] | [INFO] [stdout] 95 | fn parse_cli(args: &Args, cfgs: &Yaml , mut answer_conf: Yaml)->Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_answer_conf` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `answer_conf` is never read [INFO] [stdout] --> src/main.rs:114:25 [INFO] [stdout] | [INFO] [stdout] 114 | answer_conf = YamlLoader::load_from_str(&file_content).unwrap()[0].clone() [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `answer_conf` is never read [INFO] [stdout] --> src/main.rs:112:25 [INFO] [stdout] | [INFO] [stdout] 112 | answer_conf = Yaml::Hash(LinkedHashMap::new()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `answer_conf` is never read [INFO] [stdout] --> src/main.rs:107:21 [INFO] [stdout] | [INFO] [stdout] 107 | answer_conf = Yaml::Hash(LinkedHashMap::new()); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cfg` [INFO] [stdout] --> src/main.rs:176:29 [INFO] [stdout] | [INFO] [stdout] 176 | fn write_output(args:&Args, cfg:&Yaml, answer_list:Vec>, answer_conf:Yaml){ [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_cfg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:214:12 [INFO] [stdout] | [INFO] [stdout] 214 | fn confirm(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:281:9 [INFO] [stdout] | [INFO] [stdout] 281 | fn text(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:373:13 [INFO] [stdout] | [INFO] [stdout] 373 | fn password(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:436:11 [INFO] [stdout] | [INFO] [stdout] 436 | fn editor(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:509:16 [INFO] [stdout] | [INFO] [stdout] 509 | fn date_select(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:587:11 [INFO] [stdout] | [INFO] [stdout] 587 | fn select(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:650:17 [INFO] [stdout] | [INFO] [stdout] 650 | fn multi_select(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:75:17 [INFO] [stdout] | [INFO] [stdout] 75 | File::create(output_answers_file); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 75 | let _ = File::create(output_answers_file); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:106:21 [INFO] [stdout] | [INFO] [stdout] 106 | File::create(output_answers_file); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 106 | let _ = File::create(output_answers_file); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:208:5 [INFO] [stdout] | [INFO] [stdout] 208 | file.sync_all(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 208 | let _ = file.sync_all(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let mut cfgs; [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/main.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let mut answer_conf = read_answer_conf(&args); [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/main.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | let mut answer_conf; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `answer_conf` is assigned to, but never used [INFO] [stdout] --> src/main.rs:95:41 [INFO] [stdout] | [INFO] [stdout] 95 | fn parse_cli(args: &Args, cfgs: &Yaml , mut answer_conf: Yaml)->Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_answer_conf` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `answer_conf` is never read [INFO] [stdout] --> src/main.rs:114:25 [INFO] [stdout] | [INFO] [stdout] 114 | answer_conf = YamlLoader::load_from_str(&file_content).unwrap()[0].clone() [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `answer_conf` is never read [INFO] [stdout] --> src/main.rs:112:25 [INFO] [stdout] | [INFO] [stdout] 112 | answer_conf = Yaml::Hash(LinkedHashMap::new()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `answer_conf` is never read [INFO] [stdout] --> src/main.rs:107:21 [INFO] [stdout] | [INFO] [stdout] 107 | answer_conf = Yaml::Hash(LinkedHashMap::new()); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cfg` [INFO] [stdout] --> src/main.rs:176:29 [INFO] [stdout] | [INFO] [stdout] 176 | fn write_output(args:&Args, cfg:&Yaml, answer_list:Vec>, answer_conf:Yaml){ [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_cfg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:214:12 [INFO] [stdout] | [INFO] [stdout] 214 | fn confirm(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:281:9 [INFO] [stdout] | [INFO] [stdout] 281 | fn text(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:373:13 [INFO] [stdout] | [INFO] [stdout] 373 | fn password(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:436:11 [INFO] [stdout] | [INFO] [stdout] 436 | fn editor(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:509:16 [INFO] [stdout] | [INFO] [stdout] 509 | fn date_select(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:587:11 [INFO] [stdout] | [INFO] [stdout] 587 | fn select(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:650:17 [INFO] [stdout] | [INFO] [stdout] 650 | fn multi_select(args:&Args, cfg:&Yaml)-> Vec{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:75:17 [INFO] [stdout] | [INFO] [stdout] 75 | File::create(output_answers_file); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 75 | let _ = File::create(output_answers_file); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:106:21 [INFO] [stdout] | [INFO] [stdout] 106 | File::create(output_answers_file); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 106 | let _ = File::create(output_answers_file); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:208:5 [INFO] [stdout] | [INFO] [stdout] 208 | file.sync_all(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 208 | let _ = file.sync_all(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.49s [INFO] running `Command { std: "docker" "inspect" "b9cb08a42d21dd115282ed4bcfd99309a68a83d2c186cc153a4b6d371af7c234", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b9cb08a42d21dd115282ed4bcfd99309a68a83d2c186cc153a4b6d371af7c234", kill_on_drop: false }` [INFO] [stdout] b9cb08a42d21dd115282ed4bcfd99309a68a83d2c186cc153a4b6d371af7c234