[INFO] fetching crate nstr 0.3.2... [INFO] testing nstr-0.3.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1 [INFO] extracting crate nstr 0.3.2 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate nstr 0.3.2 [INFO] finished tweaking crates.io crate nstr 0.3.2 [INFO] tweaked toml for crates.io crate nstr 0.3.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate nstr 0.3.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 07cef1a346037328462cec9c9748fd6fbd760e8a07fe82d7d65d07c5e5cf26c6 [INFO] running `Command { std: "docker" "start" "-a" "07cef1a346037328462cec9c9748fd6fbd760e8a07fe82d7d65d07c5e5cf26c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "07cef1a346037328462cec9c9748fd6fbd760e8a07fe82d7d65d07c5e5cf26c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07cef1a346037328462cec9c9748fd6fbd760e8a07fe82d7d65d07c5e5cf26c6", kill_on_drop: false }` [INFO] [stdout] 07cef1a346037328462cec9c9748fd6fbd760e8a07fe82d7d65d07c5e5cf26c6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3288b770b0662bad9660b5df6972f58a573f8e63dc0bac1ac1639673a10cdb5e [INFO] running `Command { std: "docker" "start" "-a" "3288b770b0662bad9660b5df6972f58a573f8e63dc0bac1ac1639673a10cdb5e", kill_on_drop: false }` [INFO] [stderr] Compiling nstr v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `DEFAULT_BUFFER_SIZE` [INFO] [stdout] --> src/tostring.rs:1:21 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::{String, DEFAULT_BUFFER_SIZE}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `methods::*` [INFO] [stdout] --> src/lib.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | pub use methods::*; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `vec` [INFO] [stdout] --> src/lib.rs:56:14 [INFO] [stdout] | [INFO] [stdout] 56 | macro_rules! vec { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `string` [INFO] [stdout] --> src/lib.rs:69:14 [INFO] [stdout] | [INFO] [stdout] 69 | macro_rules! string { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/methods.rs:41:18 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn chars(&self) -> core::str::Chars { [INFO] [stdout] | ^^^^^ ---------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 41 | pub fn chars(&self) -> core::str::Chars<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/methods.rs:150:18 [INFO] [stdout] | [INFO] [stdout] 150 | pub fn lines(&self) -> core::str::Lines { [INFO] [stdout] | ^^^^^ ---------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 150 | pub fn lines(&self) -> core::str::Lines<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/vec.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | write!(f, "]"); [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] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = write!(f, "]"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "3288b770b0662bad9660b5df6972f58a573f8e63dc0bac1ac1639673a10cdb5e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3288b770b0662bad9660b5df6972f58a573f8e63dc0bac1ac1639673a10cdb5e", kill_on_drop: false }` [INFO] [stdout] 3288b770b0662bad9660b5df6972f58a573f8e63dc0bac1ac1639673a10cdb5e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 35540f4dc23c56d00a08f03230cdf8c77525acff258d735ca2cb204ab1697007 [INFO] running `Command { std: "docker" "start" "-a" "35540f4dc23c56d00a08f03230cdf8c77525acff258d735ca2cb204ab1697007", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `DEFAULT_BUFFER_SIZE` [INFO] [stdout] --> src/tostring.rs:1:21 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::{String, DEFAULT_BUFFER_SIZE}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `methods::*` [INFO] [stdout] --> src/lib.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | pub use methods::*; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `vec` [INFO] [stdout] --> src/lib.rs:56:14 [INFO] [stdout] | [INFO] [stdout] 56 | macro_rules! vec { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `string` [INFO] [stdout] --> src/lib.rs:69:14 [INFO] [stdout] | [INFO] [stdout] 69 | macro_rules! string { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/methods.rs:41:18 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn chars(&self) -> core::str::Chars { [INFO] [stdout] | ^^^^^ ---------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 41 | pub fn chars(&self) -> core::str::Chars<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/methods.rs:150:18 [INFO] [stdout] | [INFO] [stdout] 150 | pub fn lines(&self) -> core::str::Lines { [INFO] [stdout] | ^^^^^ ---------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 150 | pub fn lines(&self) -> core::str::Lines<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/vec.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | write!(f, "]"); [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] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = write!(f, "]"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling nstr v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `DEFAULT_BUFFER_SIZE` [INFO] [stdout] --> src/tostring.rs:1:21 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::{String, DEFAULT_BUFFER_SIZE}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `methods::*` [INFO] [stdout] --> src/lib.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | pub use methods::*; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/methods.rs:41:18 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn chars(&self) -> core::str::Chars { [INFO] [stdout] | ^^^^^ ---------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 41 | pub fn chars(&self) -> core::str::Chars<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/methods.rs:150:18 [INFO] [stdout] | [INFO] [stdout] 150 | pub fn lines(&self) -> core::str::Lines { [INFO] [stdout] | ^^^^^ ---------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 150 | pub fn lines(&self) -> core::str::Lines<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/vec.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | write!(f, "]"); [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] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = write!(f, "]"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s [INFO] running `Command { std: "docker" "inspect" "35540f4dc23c56d00a08f03230cdf8c77525acff258d735ca2cb204ab1697007", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35540f4dc23c56d00a08f03230cdf8c77525acff258d735ca2cb204ab1697007", kill_on_drop: false }` [INFO] [stdout] 35540f4dc23c56d00a08f03230cdf8c77525acff258d735ca2cb204ab1697007 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 470165a24f15bd2651f2c38b4fc609036128987f3f0598f822c005c81a4bcc03 [INFO] running `Command { std: "docker" "start" "-a" "470165a24f15bd2651f2c38b4fc609036128987f3f0598f822c005c81a4bcc03", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `DEFAULT_BUFFER_SIZE` [INFO] [stderr] --> src/tostring.rs:1:21 [INFO] [stderr] | [INFO] [stderr] 1 | use crate::{String, DEFAULT_BUFFER_SIZE}; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `methods::*` [INFO] [stderr] --> src/lib.rs:52:9 [INFO] [stderr] | [INFO] [stderr] 52 | pub use methods::*; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused macro definition: `vec` [INFO] [stderr] --> src/lib.rs:56:14 [INFO] [stderr] | [INFO] [stderr] 56 | macro_rules! vec { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_macros)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused macro definition: `string` [INFO] [stderr] --> src/lib.rs:69:14 [INFO] [stderr] | [INFO] [stderr] 69 | macro_rules! string { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/methods.rs:41:18 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn chars(&self) -> core::str::Chars { [INFO] [stderr] | ^^^^^ ---------------- the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 41 | pub fn chars(&self) -> core::str::Chars<'_> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/methods.rs:150:18 [INFO] [stderr] | [INFO] [stderr] 150 | pub fn lines(&self) -> core::str::Lines { [INFO] [stderr] | ^^^^^ ---------------- the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 150 | pub fn lines(&self) -> core::str::Lines<'_> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/vec.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | write!(f, "]"); [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)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 22 | let _ = write!(f, "]"); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `nstr` (lib) generated 7 warnings (run `cargo fix --lib -p nstr` to apply 4 suggestions) [INFO] [stderr] warning: `nstr` (lib test) generated 5 warnings (5 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nstr-fa99c674fe1ad102) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::test_new ... ok [INFO] [stdout] test tests::test_string ... ok [INFO] [stdout] test tests::test_vec ... 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] Doc-tests nstr [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] running `Command { std: "docker" "inspect" "470165a24f15bd2651f2c38b4fc609036128987f3f0598f822c005c81a4bcc03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "470165a24f15bd2651f2c38b4fc609036128987f3f0598f822c005c81a4bcc03", kill_on_drop: false }` [INFO] [stdout] 470165a24f15bd2651f2c38b4fc609036128987f3f0598f822c005c81a4bcc03