[INFO] crate simple_arguments 0.1.1 is already in cache [INFO] testing simple_arguments-0.1.1 against beta-2020-07-24 for beta-1.46-1 [INFO] extracting crate simple_arguments 0.1.1 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate simple_arguments 0.1.1 on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-5/source/Cargo.toml [INFO] crate crates.io crate simple_arguments 0.1.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ce2e448675c53345c571f91e0883b58bd15e6e2f7b7e51e2d8d6eab5a292318d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ce2e448675c53345c571f91e0883b58bd15e6e2f7b7e51e2d8d6eab5a292318d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ce2e448675c53345c571f91e0883b58bd15e6e2f7b7e51e2d8d6eab5a292318d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce2e448675c53345c571f91e0883b58bd15e6e2f7b7e51e2d8d6eab5a292318d", kill_on_drop: false }` [INFO] [stdout] ce2e448675c53345c571f91e0883b58bd15e6e2f7b7e51e2d8d6eab5a292318d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6756de7e079bf2cd0dd91784c1471b6fd201292d630a3baf3e99386893449870 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6756de7e079bf2cd0dd91784c1471b6fd201292d630a3baf3e99386893449870", 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)]` 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)]` 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: 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 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: 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)]` 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 `std::result::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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.83s [INFO] running `Command { std: "docker" "inspect" "6756de7e079bf2cd0dd91784c1471b6fd201292d630a3baf3e99386893449870", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6756de7e079bf2cd0dd91784c1471b6fd201292d630a3baf3e99386893449870", kill_on_drop: false }` [INFO] [stdout] 6756de7e079bf2cd0dd91784c1471b6fd201292d630a3baf3e99386893449870 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8333c6b68e6555d060a9c4c12a1c435bf496933ebdb927237fdbc756bc59830b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8333c6b68e6555d060a9c4c12a1c435bf496933ebdb927237fdbc756bc59830b", 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)]` 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)]` 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: 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 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: 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)]` 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 `std::result::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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [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)]` 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)]` 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)]` 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: 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 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: 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)]` 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 `std::result::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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.56s [INFO] running `Command { std: "docker" "inspect" "8333c6b68e6555d060a9c4c12a1c435bf496933ebdb927237fdbc756bc59830b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8333c6b68e6555d060a9c4c12a1c435bf496933ebdb927237fdbc756bc59830b", kill_on_drop: false }` [INFO] [stdout] 8333c6b68e6555d060a9c4c12a1c435bf496933ebdb927237fdbc756bc59830b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 4cc149440f67bc3343a2545587d86b75d881e397b5646bedec4a9bdb9127d290 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4cc149440f67bc3343a2545587d86b75d881e397b5646bedec4a9bdb9127d290", 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)]` 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)]` 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: 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 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: 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)]` 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 `std::result::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: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [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)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [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)]` 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)]` 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: 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 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: 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)]` 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 `std::result::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: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/simple_arguments-c7927bd30ad9f960 [INFO] [stdout] running 3 tests [INFO] [stdout] test _test ... ok [INFO] [stdout] test simple_test ... ok [INFO] [stdout] test free_args_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/main-3bf81b63c7ee9029 [INFO] [stdout] [INFO] [stderr] Doc-tests simple_arguments [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 4) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "4cc149440f67bc3343a2545587d86b75d881e397b5646bedec4a9bdb9127d290", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4cc149440f67bc3343a2545587d86b75d881e397b5646bedec4a9bdb9127d290", kill_on_drop: false }` [INFO] [stdout] 4cc149440f67bc3343a2545587d86b75d881e397b5646bedec4a9bdb9127d290