[INFO] fetching crate bibliotheque 0.1.0... [INFO] testing bibliotheque-0.1.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] extracting crate bibliotheque 0.1.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate bibliotheque 0.1.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate bibliotheque 0.1.0 [INFO] finished tweaking crates.io crate bibliotheque 0.1.0 [INFO] tweaked toml for crates.io crate bibliotheque 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate crates.io crate bibliotheque 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cassowary v0.3.0 [INFO] [stderr] Downloaded itoa v0.4.5 [INFO] [stderr] Downloaded proc-macro2 v1.0.10 [INFO] [stderr] Downloaded ryu v1.0.3 [INFO] [stderr] Downloaded getrandom v0.1.14 [INFO] [stderr] Downloaded arrayvec v0.5.1 [INFO] [stderr] Downloaded redox_users v0.3.4 [INFO] [stderr] Downloaded blake2b_simd v0.5.10 [INFO] [stderr] Downloaded constant_time_eq v0.1.5 [INFO] [stderr] Downloaded dirs-sys v0.3.4 [INFO] [stderr] Downloaded tui v0.8.0 [INFO] [stderr] Downloaded termion v1.5.5 [INFO] [stderr] Downloaded numtoa v0.1.0 [INFO] [stderr] Downloaded rust-argon2 v0.7.0 [INFO] [stderr] Downloaded serde_json v1.0.50 [INFO] [stderr] Downloaded redox_termios v0.1.1 [INFO] [stderr] Downloaded autocfg v1.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 25ea56d5de28366ef8425cf63e2c0be3e5e4de1f7306ec91942fcb3947476c00 [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" "25ea56d5de28366ef8425cf63e2c0be3e5e4de1f7306ec91942fcb3947476c00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "25ea56d5de28366ef8425cf63e2c0be3e5e4de1f7306ec91942fcb3947476c00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25ea56d5de28366ef8425cf63e2c0be3e5e4de1f7306ec91942fcb3947476c00", kill_on_drop: false }` [INFO] [stdout] 25ea56d5de28366ef8425cf63e2c0be3e5e4de1f7306ec91942fcb3947476c00 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8abb11e62e1b7e0f0b0a5b95fdaa8d5053c7bf30270b8a448f49f5f51f256fa4 [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" "8abb11e62e1b7e0f0b0a5b95fdaa8d5053c7bf30270b8a448f49f5f51f256fa4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling cassowary v0.3.0 [INFO] [stderr] Compiling termion v1.5.5 [INFO] [stderr] Compiling dirs-sys v0.3.4 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling tui v0.8.0 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling serde_json v1.0.50 [INFO] [stderr] Compiling bibliotheque v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:149:5 [INFO] [stdout] | [INFO] [stdout] 149 | run(); [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] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:184:5 [INFO] [stdout] | [INFO] [stdout] 184 | terminal.show_cursor(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:186:9 [INFO] [stdout] | [INFO] [stdout] 186 | / terminal.draw(|mut f| { [INFO] [stdout] 187 | | let chunks = Layout::default() [INFO] [stdout] 188 | | .direction(Direction::Vertical) [INFO] [stdout] 189 | | .constraints( [INFO] [stdout] ... | [INFO] [stdout] 218 | | f.render(&mut line, chunks[1]); [INFO] [stdout] 219 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:230:9 [INFO] [stdout] | [INFO] [stdout] 230 | / terminal.draw(|mut f| { [INFO] [stdout] 231 | | let chunks = Layout::default() [INFO] [stdout] 232 | | .direction(Direction::Vertical) [INFO] [stdout] 233 | | .constraints( [INFO] [stdout] ... | [INFO] [stdout] 262 | | f.render(&mut line, chunks[1]); [INFO] [stdout] 263 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:271:5 [INFO] [stdout] | [INFO] [stdout] 271 | terminal.hide_cursor(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:293:9 [INFO] [stdout] | [INFO] [stdout] 293 | / terminal.draw(|mut f| { [INFO] [stdout] 294 | | let chunks = Layout::default() [INFO] [stdout] 295 | | .direction(Direction::Vertical) [INFO] [stdout] 296 | | .margin(1) [INFO] [stdout] ... | [INFO] [stdout] 322 | | f.render(&mut line, chunks[1]); [INFO] [stdout] 323 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:340:17 [INFO] [stdout] | [INFO] [stdout] 340 | enregistrer(&bib); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.30s [INFO] running `Command { std: "docker" "inspect" "8abb11e62e1b7e0f0b0a5b95fdaa8d5053c7bf30270b8a448f49f5f51f256fa4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8abb11e62e1b7e0f0b0a5b95fdaa8d5053c7bf30270b8a448f49f5f51f256fa4", kill_on_drop: false }` [INFO] [stdout] 8abb11e62e1b7e0f0b0a5b95fdaa8d5053c7bf30270b8a448f49f5f51f256fa4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a814eecd02c37b241c6d1b1c1a8d88c667f8261b0bc5361e5897a5a10760a35 [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" "7a814eecd02c37b241c6d1b1c1a8d88c667f8261b0bc5361e5897a5a10760a35", kill_on_drop: false }` [INFO] [stderr] Compiling bibliotheque v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:149:5 [INFO] [stdout] | [INFO] [stdout] 149 | run(); [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] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:184:5 [INFO] [stdout] | [INFO] [stdout] 184 | terminal.show_cursor(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:186:9 [INFO] [stdout] | [INFO] [stdout] 186 | / terminal.draw(|mut f| { [INFO] [stdout] 187 | | let chunks = Layout::default() [INFO] [stdout] 188 | | .direction(Direction::Vertical) [INFO] [stdout] 189 | | .constraints( [INFO] [stdout] ... | [INFO] [stdout] 218 | | f.render(&mut line, chunks[1]); [INFO] [stdout] 219 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:230:9 [INFO] [stdout] | [INFO] [stdout] 230 | / terminal.draw(|mut f| { [INFO] [stdout] 231 | | let chunks = Layout::default() [INFO] [stdout] 232 | | .direction(Direction::Vertical) [INFO] [stdout] 233 | | .constraints( [INFO] [stdout] ... | [INFO] [stdout] 262 | | f.render(&mut line, chunks[1]); [INFO] [stdout] 263 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:271:5 [INFO] [stdout] | [INFO] [stdout] 271 | terminal.hide_cursor(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:293:9 [INFO] [stdout] | [INFO] [stdout] 293 | / terminal.draw(|mut f| { [INFO] [stdout] 294 | | let chunks = Layout::default() [INFO] [stdout] 295 | | .direction(Direction::Vertical) [INFO] [stdout] 296 | | .margin(1) [INFO] [stdout] ... | [INFO] [stdout] 322 | | f.render(&mut line, chunks[1]); [INFO] [stdout] 323 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:340:17 [INFO] [stdout] | [INFO] [stdout] 340 | enregistrer(&bib); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.91s [INFO] running `Command { std: "docker" "inspect" "7a814eecd02c37b241c6d1b1c1a8d88c667f8261b0bc5361e5897a5a10760a35", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a814eecd02c37b241c6d1b1c1a8d88c667f8261b0bc5361e5897a5a10760a35", kill_on_drop: false }` [INFO] [stdout] 7a814eecd02c37b241c6d1b1c1a8d88c667f8261b0bc5361e5897a5a10760a35 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] fd5f95ebe8015c989b5f98b1d4f3a67d9ada8c0fe1b16eb50d5703aacd187eda [INFO] running `Command { std: "docker" "start" "-a" "fd5f95ebe8015c989b5f98b1d4f3a67d9ada8c0fe1b16eb50d5703aacd187eda", kill_on_drop: false }` [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stdout] [INFO] [stderr] --> src/main.rs:149:5 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 149 | run(); [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^^^^^^ [INFO] [stdout] [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] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:184:5 [INFO] [stderr] | [INFO] [stderr] 184 | terminal.show_cursor(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:186:9 [INFO] [stderr] | [INFO] [stderr] 186 | / terminal.draw(|mut f| { [INFO] [stderr] 187 | | let chunks = Layout::default() [INFO] [stderr] 188 | | .direction(Direction::Vertical) [INFO] [stderr] 189 | | .constraints( [INFO] [stderr] ... | [INFO] [stderr] 218 | | f.render(&mut line, chunks[1]); [INFO] [stderr] 219 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:230:9 [INFO] [stderr] | [INFO] [stderr] 230 | / terminal.draw(|mut f| { [INFO] [stderr] 231 | | let chunks = Layout::default() [INFO] [stderr] 232 | | .direction(Direction::Vertical) [INFO] [stderr] 233 | | .constraints( [INFO] [stderr] ... | [INFO] [stderr] 262 | | f.render(&mut line, chunks[1]); [INFO] [stderr] 263 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:271:5 [INFO] [stderr] | [INFO] [stderr] 271 | terminal.hide_cursor(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:293:9 [INFO] [stderr] | [INFO] [stderr] 293 | / terminal.draw(|mut f| { [INFO] [stderr] 294 | | let chunks = Layout::default() [INFO] [stderr] 295 | | .direction(Direction::Vertical) [INFO] [stderr] 296 | | .margin(1) [INFO] [stderr] ... | [INFO] [stderr] 322 | | f.render(&mut line, chunks[1]); [INFO] [stderr] 323 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:340:17 [INFO] [stderr] | [INFO] [stderr] 340 | enregistrer(&bib); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/bibliotheque-6799ab78e9ea57a5) [INFO] running `Command { std: "docker" "inspect" "fd5f95ebe8015c989b5f98b1d4f3a67d9ada8c0fe1b16eb50d5703aacd187eda", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd5f95ebe8015c989b5f98b1d4f3a67d9ada8c0fe1b16eb50d5703aacd187eda", kill_on_drop: false }` [INFO] [stdout] fd5f95ebe8015c989b5f98b1d4f3a67d9ada8c0fe1b16eb50d5703aacd187eda