[INFO] cloning repository https://github.com/shika-blyat/regex-engine [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shika-blyat/regex-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshika-blyat%2Fregex-engine", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshika-blyat%2Fregex-engine'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 073551372d25adffb72b138cb5b7a3428e653198 [INFO] testing shika-blyat/regex-engine against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshika-blyat%2Fregex-engine" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shika-blyat/regex-engine on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shika-blyat/regex-engine [INFO] finished tweaking git repo https://github.com/shika-blyat/regex-engine [INFO] tweaked toml for git repo https://github.com/shika-blyat/regex-engine written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/shika-blyat/regex-engine already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3160e98122c02f6e3573eeb01a380a94ba7b841e87cdb9bb632a25a30d812f38 [INFO] running `Command { std: "docker" "start" "-a" "3160e98122c02f6e3573eeb01a380a94ba7b841e87cdb9bb632a25a30d812f38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3160e98122c02f6e3573eeb01a380a94ba7b841e87cdb9bb632a25a30d812f38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3160e98122c02f6e3573eeb01a380a94ba7b841e87cdb9bb632a25a30d812f38", kill_on_drop: false }` [INFO] [stdout] 3160e98122c02f6e3573eeb01a380a94ba7b841e87cdb9bb632a25a30d812f38 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6eb35d1bb6e03ca8dc9ae8f87129b1e957df9a0907436977fefa7eb49d2c4f86 [INFO] running `Command { std: "docker" "start" "-a" "6eb35d1bb6e03ca8dc9ae8f87129b1e957df9a0907436977fefa7eb49d2c4f86", kill_on_drop: false }` [INFO] [stderr] Compiling math-eval-tuto v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `NFA` [INFO] [stdout] --> src/main.rs:5:23 [INFO] [stdout] | [INFO] [stdout] 5 | use nfa::{NFABuilder, NFA}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `handle` [INFO] [stdout] --> src/nfa.rs:142:29 [INFO] [stdout] | [INFO] [stdout] 142 | let mut function = |handle: NodeHandle| {}; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:141:13 [INFO] [stdout] | [INFO] [stdout] 141 | let mut final_states = HashSet::new(); [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/nfa.rs:142:13 [INFO] [stdout] | [INFO] [stdout] 142 | let mut function = |handle: NodeHandle| {}; [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_all_final_states_internal` [INFO] [stdout] --> src/nfa.rs:146:8 [INFO] [stdout] | [INFO] [stdout] 146 | fn get_all_final_states_internal( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/nfa.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | / write!( [INFO] [stdout] 19 | | fmtr, [INFO] [stdout] 20 | | "{} -'{}'> {}\n", [INFO] [stdout] 21 | | self.starting_node, [INFO] [stdout] 22 | | trans.consumes.unwrap_or('\0'), [INFO] [stdout] 23 | | trans.to [INFO] [stdout] 24 | | ); [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 the macro `write` (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/nfa.rs:29:21 [INFO] [stdout] | [INFO] [stdout] 29 | / write!( [INFO] [stdout] 30 | | fmtr, [INFO] [stdout] 31 | | "{} -'{}'> {}\n", [INFO] [stdout] 32 | | idx, [INFO] [stdout] 33 | | trans.consumes.unwrap_or('\0'), [INFO] [stdout] 34 | | trans.to, [INFO] [stdout] 35 | | ); [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 `write` (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/nfa.rs:38:21 [INFO] [stdout] | [INFO] [stdout] 38 | write!(fmtr, "{} ->\n", idx); [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 `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.74s [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "6eb35d1bb6e03ca8dc9ae8f87129b1e957df9a0907436977fefa7eb49d2c4f86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6eb35d1bb6e03ca8dc9ae8f87129b1e957df9a0907436977fefa7eb49d2c4f86", kill_on_drop: false }` [INFO] [stdout] 6eb35d1bb6e03ca8dc9ae8f87129b1e957df9a0907436977fefa7eb49d2c4f86 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e8675042283f1f7090b423db332d51ce946cb71ca69b2d14ca160ef45817d14f [INFO] running `Command { std: "docker" "start" "-a" "e8675042283f1f7090b423db332d51ce946cb71ca69b2d14ca160ef45817d14f", kill_on_drop: false }` [INFO] [stderr] Compiling math-eval-tuto v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `NFA` [INFO] [stdout] --> src/main.rs:5:23 [INFO] [stdout] | [INFO] [stdout] 5 | use nfa::{NFABuilder, NFA}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `handle` [INFO] [stdout] --> src/nfa.rs:142:29 [INFO] [stdout] | [INFO] [stdout] 142 | let mut function = |handle: NodeHandle| {}; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:141:13 [INFO] [stdout] | [INFO] [stdout] 141 | let mut final_states = HashSet::new(); [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/nfa.rs:142:13 [INFO] [stdout] | [INFO] [stdout] 142 | let mut function = |handle: NodeHandle| {}; [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_all_final_states_internal` [INFO] [stdout] --> src/nfa.rs:146:8 [INFO] [stdout] | [INFO] [stdout] 146 | fn get_all_final_states_internal( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/nfa.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | / write!( [INFO] [stdout] 19 | | fmtr, [INFO] [stdout] 20 | | "{} -'{}'> {}\n", [INFO] [stdout] 21 | | self.starting_node, [INFO] [stdout] 22 | | trans.consumes.unwrap_or('\0'), [INFO] [stdout] 23 | | trans.to [INFO] [stdout] 24 | | ); [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 the macro `write` (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/nfa.rs:29:21 [INFO] [stdout] | [INFO] [stdout] 29 | / write!( [INFO] [stdout] 30 | | fmtr, [INFO] [stdout] 31 | | "{} -'{}'> {}\n", [INFO] [stdout] 32 | | idx, [INFO] [stdout] 33 | | trans.consumes.unwrap_or('\0'), [INFO] [stdout] 34 | | trans.to, [INFO] [stdout] 35 | | ); [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 `write` (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/nfa.rs:38:21 [INFO] [stdout] | [INFO] [stdout] 38 | write!(fmtr, "{} ->\n", idx); [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 `write` (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] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `Command { std: "docker" "inspect" "e8675042283f1f7090b423db332d51ce946cb71ca69b2d14ca160ef45817d14f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8675042283f1f7090b423db332d51ce946cb71ca69b2d14ca160ef45817d14f", kill_on_drop: false }` [INFO] [stdout] e8675042283f1f7090b423db332d51ce946cb71ca69b2d14ca160ef45817d14f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f55852d618c4c7e1acd0cdab338bf9d3c928309817dbe6ff2515225c047aa658 [INFO] running `Command { std: "docker" "start" "-a" "f55852d618c4c7e1acd0cdab338bf9d3c928309817dbe6ff2515225c047aa658", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: unused import: `NFA` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/main.rs:5:23 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 5 | use nfa::{NFABuilder, NFA}; [INFO] [stdout] [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `handle` [INFO] [stderr] --> src/nfa.rs:142:29 [INFO] [stderr] | [INFO] [stderr] 142 | let mut function = |handle: NodeHandle| {}; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/nfa.rs:141:13 [INFO] [stderr] | [INFO] [stderr] 141 | let mut final_states = HashSet::new(); [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/nfa.rs:142:13 [INFO] [stderr] | [INFO] [stderr] 142 | let mut function = |handle: NodeHandle| {}; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_all_final_states_internal` [INFO] [stderr] --> src/nfa.rs:146:8 [INFO] [stderr] | [INFO] [stderr] 146 | fn get_all_final_states_internal( [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/nfa.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | / write!( [INFO] [stderr] 19 | | fmtr, [INFO] [stderr] 20 | | "{} -'{}'> {}\n", [INFO] [stderr] 21 | | self.starting_node, [INFO] [stderr] 22 | | trans.consumes.unwrap_or('\0'), [INFO] [stderr] 23 | | trans.to [INFO] [stderr] 24 | | ); [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 the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/nfa.rs:29:21 [INFO] [stderr] | [INFO] [stderr] 29 | / write!( [INFO] [stderr] 30 | | fmtr, [INFO] [stderr] 31 | | "{} -'{}'> {}\n", [INFO] [stderr] 32 | | idx, [INFO] [stderr] 33 | | trans.consumes.unwrap_or('\0'), [INFO] [stderr] 34 | | trans.to, [INFO] [stderr] 35 | | ); [INFO] [stderr] | |______________________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/nfa.rs:38:21 [INFO] [stderr] | [INFO] [stderr] 38 | write!(fmtr, "{} ->\n", idx); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (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 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/math_eval_tuto-00b1aa317ca8a2f3) [INFO] running `Command { std: "docker" "inspect" "f55852d618c4c7e1acd0cdab338bf9d3c928309817dbe6ff2515225c047aa658", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f55852d618c4c7e1acd0cdab338bf9d3c928309817dbe6ff2515225c047aa658", kill_on_drop: false }` [INFO] [stdout] f55852d618c4c7e1acd0cdab338bf9d3c928309817dbe6ff2515225c047aa658