[INFO] fetching crate simple_arguments 0.1.1... [INFO] testing simple_arguments-0.1.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1 [INFO] extracting crate simple_arguments 0.1.1 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate simple_arguments 0.1.1 [INFO] finished tweaking crates.io crate simple_arguments 0.1.1 [INFO] tweaked toml for crates.io crate simple_arguments 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate simple_arguments 0.1.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate simple_arguments 0.1.1 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c6de05e90bf0ac84f9eeb0040d8c36b12d72daee901b431b938cf054c0a92234 [INFO] running `Command { std: "docker" "start" "-a" "c6de05e90bf0ac84f9eeb0040d8c36b12d72daee901b431b938cf054c0a92234", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c6de05e90bf0ac84f9eeb0040d8c36b12d72daee901b431b938cf054c0a92234", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6de05e90bf0ac84f9eeb0040d8c36b12d72daee901b431b938cf054c0a92234", kill_on_drop: false }` [INFO] [stdout] c6de05e90bf0ac84f9eeb0040d8c36b12d72daee901b431b938cf054c0a92234 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] faab2f7446fa830bad7d7b4dee473b1b9c2b7ddf213085ddc2528aa2dc9c7418 [INFO] running `Command { std: "docker" "start" "-a" "faab2f7446fa830bad7d7b4dee473b1b9c2b7ddf213085ddc2528aa2dc9c7418", kill_on_drop: false }` [INFO] [stderr] Compiling simple_arguments v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | use std::io::Write; [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: `s` [INFO] [stdout] --> src/lib.rs:98:21 [INFO] [stdout] | [INFO] [stdout] 98 | fn fill(&mut self, s: &mut dyn Iterator) -> Result<(), ArgError> { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lib.rs:114:14 [INFO] [stdout] | [INFO] [stdout] 114 | .or_else(|err| Err(ArgError::Err(format!("error parsing {}", type_name::()))))?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:190:11 [INFO] [stdout] | [INFO] [stdout] 190 | for (f, mut v) in flags.into_iter() { [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/lib.rs:192:8 [INFO] [stdout] | [INFO] [stdout] 192 | let mut flag = self [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `max_len` [INFO] [stdout] --> src/lib.rs:215:7 [INFO] [stdout] | [INFO] [stdout] 215 | let max_len = flags.iter().fold(0, |acc, v| acc + v.0.len()); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `fl` [INFO] [stdout] --> src/lib.rs:213:29 [INFO] [stdout] | [INFO] [stdout] 213 | flags.sort_by_key(|(name, fl)| name.to_owned()); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_fl` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 77 | write!(fmt, "out of arguments"); [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] 77 | let _ = write!(fmt, "out of arguments"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `exec` [INFO] [stdout] --> src/bin/main.rs:17:7 [INFO] [stdout] | [INFO] [stdout] 17 | let exec = args.next().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_exec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.05s [INFO] running `Command { std: "docker" "inspect" "faab2f7446fa830bad7d7b4dee473b1b9c2b7ddf213085ddc2528aa2dc9c7418", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "faab2f7446fa830bad7d7b4dee473b1b9c2b7ddf213085ddc2528aa2dc9c7418", kill_on_drop: false }` [INFO] [stdout] faab2f7446fa830bad7d7b4dee473b1b9c2b7ddf213085ddc2528aa2dc9c7418 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bfa28112482632c04622abada3b320906deeea750753c67eed5d2910685c62b1 [INFO] running `Command { std: "docker" "start" "-a" "bfa28112482632c04622abada3b320906deeea750753c67eed5d2910685c62b1", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | use std::io::Write; [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: `s` [INFO] [stdout] --> src/lib.rs:98:21 [INFO] [stdout] | [INFO] [stdout] 98 | fn fill(&mut self, s: &mut dyn Iterator) -> Result<(), ArgError> { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lib.rs:114:14 [INFO] [stdout] | [INFO] [stdout] 114 | .or_else(|err| Err(ArgError::Err(format!("error parsing {}", type_name::()))))?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:190:11 [INFO] [stdout] | [INFO] [stdout] 190 | for (f, mut v) in flags.into_iter() { [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/lib.rs:192:8 [INFO] [stdout] | [INFO] [stdout] 192 | let mut flag = self [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `max_len` [INFO] [stdout] --> src/lib.rs:215:7 [INFO] [stdout] | [INFO] [stdout] 215 | let max_len = flags.iter().fold(0, |acc, v| acc + v.0.len()); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `fl` [INFO] [stdout] --> src/lib.rs:213:29 [INFO] [stdout] | [INFO] [stdout] 213 | flags.sort_by_key(|(name, fl)| name.to_owned()); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_fl` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 77 | write!(fmt, "out of arguments"); [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] 77 | let _ = write!(fmt, "out of arguments"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling simple_arguments v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `exec` [INFO] [stdout] --> src/bin/main.rs:17:7 [INFO] [stdout] | [INFO] [stdout] 17 | let exec = args.next().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_exec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | use std::io::Write; [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: `s` [INFO] [stdout] --> src/lib.rs:98:21 [INFO] [stdout] | [INFO] [stdout] 98 | fn fill(&mut self, s: &mut dyn Iterator) -> Result<(), ArgError> { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lib.rs:114:14 [INFO] [stdout] | [INFO] [stdout] 114 | .or_else(|err| Err(ArgError::Err(format!("error parsing {}", type_name::()))))?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:190:11 [INFO] [stdout] | [INFO] [stdout] 190 | for (f, mut v) in flags.into_iter() { [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/lib.rs:192:8 [INFO] [stdout] | [INFO] [stdout] 192 | let mut flag = self [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `max_len` [INFO] [stdout] --> src/lib.rs:215:7 [INFO] [stdout] | [INFO] [stdout] 215 | let max_len = flags.iter().fold(0, |acc, v| acc + v.0.len()); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `fl` [INFO] [stdout] --> src/lib.rs:213:29 [INFO] [stdout] | [INFO] [stdout] 213 | flags.sort_by_key(|(name, fl)| name.to_owned()); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_fl` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 77 | write!(fmt, "out of arguments"); [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] 77 | let _ = write!(fmt, "out of arguments"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `Command { std: "docker" "inspect" "bfa28112482632c04622abada3b320906deeea750753c67eed5d2910685c62b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfa28112482632c04622abada3b320906deeea750753c67eed5d2910685c62b1", kill_on_drop: false }` [INFO] [stdout] bfa28112482632c04622abada3b320906deeea750753c67eed5d2910685c62b1 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a47ff5439189dc1395debadba88a816d96901b85c0740adb696adb0eeaf72f62 [INFO] running `Command { std: "docker" "start" "-a" "a47ff5439189dc1395debadba88a816d96901b85c0740adb696adb0eeaf72f62", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::io::Write` [INFO] [stderr] --> src/lib.rs:61:5 [INFO] [stderr] | [INFO] [stderr] 61 | use std::io::Write; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/lib.rs:98:21 [INFO] [stderr] | [INFO] [stderr] 98 | fn fill(&mut self, s: &mut dyn Iterator) -> Result<(), ArgError> { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/lib.rs:114:14 [INFO] [stderr] | [INFO] [stderr] 114 | .or_else(|err| Err(ArgError::Err(format!("error parsing {}", type_name::()))))?; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:190:11 [INFO] [stderr] | [INFO] [stderr] 190 | for (f, mut v) in flags.into_iter() { [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/lib.rs:192:8 [INFO] [stderr] | [INFO] [stderr] 192 | let mut flag = self [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_len` [INFO] [stderr] --> src/lib.rs:215:7 [INFO] [stderr] | [INFO] [stderr] 215 | let max_len = flags.iter().fold(0, |acc, v| acc + v.0.len()); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `fl` [INFO] [stderr] --> src/lib.rs:213:29 [INFO] [stderr] | [INFO] [stderr] 213 | flags.sort_by_key(|(name, fl)| name.to_owned()); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_fl` [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:77:5 [INFO] [stderr] | [INFO] [stderr] 77 | write!(fmt, "out of arguments"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 77 | let _ = write!(fmt, "out of arguments"); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `simple_arguments` (lib) generated 8 warnings (run `cargo fix --lib -p simple_arguments` to apply 2 suggestions) [INFO] [stderr] warning: unused variable: `exec` [INFO] [stderr] --> src/bin/main.rs:17:7 [INFO] [stderr] | [INFO] [stderr] 17 | let exec = args.next().unwrap(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_exec` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `simple_arguments` (bin "main" test) generated 1 warning [INFO] [stderr] warning: `simple_arguments` (lib test) generated 8 warnings (8 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_arguments-d2f60cba4c031b71) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test _test ... ok [INFO] [stdout] test free_args_test ... ok [INFO] [stdout] test simple_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/main.rs (/opt/rustwide/target/debug/deps/main-5c894e8050c41921) [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 simple_arguments [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 5) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a47ff5439189dc1395debadba88a816d96901b85c0740adb696adb0eeaf72f62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a47ff5439189dc1395debadba88a816d96901b85c0740adb696adb0eeaf72f62", kill_on_drop: false }` [INFO] [stdout] a47ff5439189dc1395debadba88a816d96901b85c0740adb696adb0eeaf72f62