[INFO] cloning repository https://github.com/c3c3l14/speedreader [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c3c3l14/speedreader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc3c3l14%2Fspeedreader", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc3c3l14%2Fspeedreader'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8689cfb5ba8daaad117b2b3a5acc9079a1f746a7 [INFO] building c3c3l14/speedreader against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc3c3l14%2Fspeedreader" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/c3c3l14/speedreader on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/c3c3l14/speedreader [INFO] finished tweaking git repo https://github.com/c3c3l14/speedreader [INFO] tweaked toml for git repo https://github.com/c3c3l14/speedreader written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/c3c3l14/speedreader 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7fd5a15d59b99aa846fc88973d34d7cd316147fc917dcc99115f64cf0390af0d [INFO] running `Command { std: "docker" "start" "-a" "7fd5a15d59b99aa846fc88973d34d7cd316147fc917dcc99115f64cf0390af0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7fd5a15d59b99aa846fc88973d34d7cd316147fc917dcc99115f64cf0390af0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7fd5a15d59b99aa846fc88973d34d7cd316147fc917dcc99115f64cf0390af0d", kill_on_drop: false }` [INFO] [stdout] 7fd5a15d59b99aa846fc88973d34d7cd316147fc917dcc99115f64cf0390af0d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0c26b97ef11be811f36096a90059d23c21f0f6761c75053182e4dce0cc8226bf [INFO] running `Command { std: "docker" "start" "-a" "0c26b97ef11be811f36096a90059d23c21f0f6761c75053182e4dce0cc8226bf", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling signal-hook v0.3.17 [INFO] [stderr] Compiling parking_lot_core v0.9.9 [INFO] [stderr] Compiling smallvec v1.13.2 [INFO] [stderr] Compiling log v0.4.21 [INFO] [stderr] Compiling bitflags v2.5.0 [INFO] [stderr] Compiling lock_api v0.4.11 [INFO] [stderr] Compiling signal-hook-registry v1.4.1 [INFO] [stderr] Compiling mio v0.8.11 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling signal-hook-mio v0.2.3 [INFO] [stderr] Compiling crossterm v0.27.0 [INFO] [stderr] Compiling speedreader v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:171:9 [INFO] [stdout] | [INFO] [stdout] 170 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 171 | / if args.iter().any(|arg| arg == "-c") { [INFO] [stdout] 172 | | println!("Cannot use both -w and -c arguments"); [INFO] [stdout] 173 | | return; [INFO] [stdout] 174 | | } [INFO] [stdout] | |_________^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:182:9 [INFO] [stdout] | [INFO] [stdout] 181 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 182 | / if args.iter().any(|arg| arg == "-w") { [INFO] [stdout] 183 | | println!("Cannot use both -w and -c arguments"); [INFO] [stdout] 184 | | return; [INFO] [stdout] 185 | | } [INFO] [stdout] | |_________^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `words` [INFO] [stdout] --> src/main.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | let mut words: u32 = 1; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_words` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `characters` [INFO] [stdout] --> src/main.rs:116:13 [INFO] [stdout] | [INFO] [stdout] 116 | let mut characters: u32 = 12; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_characters` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `words` is never read [INFO] [stdout] --> src/main.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 176 | words = args.get(index + 1).unwrap().parse::().unwrap(); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `characters` is never read [INFO] [stdout] --> src/main.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | characters = args.get(index + 1).unwrap().parse::().unwrap(); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | let mut words: u32 = 1; [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/main.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | let mut characters: u32 = 12; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | execute!(stdout, Clear(ClearType::All)); [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)]` on by default [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | ... execute!(stdout, MoveTo(x - (text_clean.len() / 2) as u16, y), SetForegroundColor(color), Print(text_clean), SetForegroundColor(Color::Reset... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | execute!(stdout, MoveTo(start_x, y), SetForegroundColor(color)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | execute!(stdout, SetForegroundColor(highlight), Print(c), SetForegroundColor(color)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | execute!(stdout, Print(c)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.55s [INFO] running `Command { std: "docker" "inspect" "0c26b97ef11be811f36096a90059d23c21f0f6761c75053182e4dce0cc8226bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c26b97ef11be811f36096a90059d23c21f0f6761c75053182e4dce0cc8226bf", kill_on_drop: false }` [INFO] [stdout] 0c26b97ef11be811f36096a90059d23c21f0f6761c75053182e4dce0cc8226bf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a923b50c776b2bdccdf7974590026a4d16088b2924fbfcc0c694d1878c1f3e1b [INFO] running `Command { std: "docker" "start" "-a" "a923b50c776b2bdccdf7974590026a4d16088b2924fbfcc0c694d1878c1f3e1b", kill_on_drop: false }` [INFO] [stderr] Compiling speedreader v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:171:9 [INFO] [stdout] | [INFO] [stdout] 170 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 171 | / if args.iter().any(|arg| arg == "-c") { [INFO] [stdout] 172 | | println!("Cannot use both -w and -c arguments"); [INFO] [stdout] 173 | | return; [INFO] [stdout] 174 | | } [INFO] [stdout] | |_________^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:182:9 [INFO] [stdout] | [INFO] [stdout] 181 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 182 | / if args.iter().any(|arg| arg == "-w") { [INFO] [stdout] 183 | | println!("Cannot use both -w and -c arguments"); [INFO] [stdout] 184 | | return; [INFO] [stdout] 185 | | } [INFO] [stdout] | |_________^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `words` [INFO] [stdout] --> src/main.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | let mut words: u32 = 1; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_words` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `characters` [INFO] [stdout] --> src/main.rs:116:13 [INFO] [stdout] | [INFO] [stdout] 116 | let mut characters: u32 = 12; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_characters` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `words` is never read [INFO] [stdout] --> src/main.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 176 | words = args.get(index + 1).unwrap().parse::().unwrap(); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `characters` is never read [INFO] [stdout] --> src/main.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | characters = args.get(index + 1).unwrap().parse::().unwrap(); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | let mut words: u32 = 1; [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/main.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | let mut characters: u32 = 12; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | execute!(stdout, Clear(ClearType::All)); [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)]` on by default [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | ... execute!(stdout, MoveTo(x - (text_clean.len() / 2) as u16, y), SetForegroundColor(color), Print(text_clean), SetForegroundColor(Color::Reset... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | execute!(stdout, MoveTo(start_x, y), SetForegroundColor(color)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | execute!(stdout, SetForegroundColor(highlight), Print(c), SetForegroundColor(color)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | execute!(stdout, Print(c)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `execute` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] running `Command { std: "docker" "inspect" "a923b50c776b2bdccdf7974590026a4d16088b2924fbfcc0c694d1878c1f3e1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a923b50c776b2bdccdf7974590026a4d16088b2924fbfcc0c694d1878c1f3e1b", kill_on_drop: false }` [INFO] [stdout] a923b50c776b2bdccdf7974590026a4d16088b2924fbfcc0c694d1878c1f3e1b