[INFO] cloning repository https://github.com/Eson-Jia/minigrep [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Eson-Jia/minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Fminigrep", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Fminigrep'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0cafb148d18cde9146db6937da800053d812da87 [INFO] checking Eson-Jia/minigrep against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Fminigrep" "/workspace/builds/worker-73/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-73/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Eson-Jia/minigrep on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Eson-Jia/minigrep [INFO] finished tweaking git repo https://github.com/Eson-Jia/minigrep [INFO] tweaked toml for git repo https://github.com/Eson-Jia/minigrep written to /workspace/builds/worker-73/source/Cargo.toml [INFO] crate git repo https://github.com/Eson-Jia/minigrep already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c31a74cecfb350b3a2c7828f4a53267cf3bb41be494b80b29272c6959b14bb25 [INFO] running `Command { std: "docker" "start" "-a" "c31a74cecfb350b3a2c7828f4a53267cf3bb41be494b80b29272c6959b14bb25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c31a74cecfb350b3a2c7828f4a53267cf3bb41be494b80b29272c6959b14bb25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c31a74cecfb350b3a2c7828f4a53267cf3bb41be494b80b29272c6959b14bb25", kill_on_drop: false }` [INFO] [stdout] c31a74cecfb350b3a2c7828f4a53267cf3bb41be494b80b29272c6959b14bb25 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 33c0b8b1b51cc9f3ce0fa41139a879d32853e82e70d0dc2d66bf9de95c2b7281 [INFO] running `Command { std: "docker" "start" "-a" "33c0b8b1b51cc9f3ce0fa41139a879d32853e82e70d0dc2d66bf9de95c2b7281", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] Running `cargo fix --edition` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking minigrep v0.1.0 (/tmp/fixit) [INFO] [stderr] Migrating src/lib.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/thread.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/closure.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/leetcod.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/smart_pointer.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/smart_pointer_rc.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/iter.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/main.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/smart_pointer_refcell.rs from 2018 edition to 2021 [INFO] [stdout] warning: variant is never constructed: `Cons` [INFO] [stdout] --> src/bin/smart_pointer.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | Cons(u32,Box), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nil` [INFO] [stdout] --> src/bin/smart_pointer.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Fixed src/bin/leetcod.rs (1 fix) [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Fixed src/bin/smart_pointer_rc.rs (2 fixes) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/thread.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | / thread::spawn(move||{ [INFO] [stdout] 23 | | thread::sleep(Duration::from_secs(1)); [INFO] [stdout] 24 | | println!("{}",info.to_uppercase()); [INFO] [stdout] 25 | | }).join(); [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: associated function is never used: `new` [INFO] [stdout] --> src/bin/leetcod.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/bin/leetcod.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | struct Solution(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_two_numbers` [INFO] [stdout] --> src/bin/leetcod.rs:45:12 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `constructor_list` [INFO] [stdout] --> src/bin/leetcod.rs:77:4 [INFO] [stdout] | [INFO] [stdout] 77 | fn constructor_list(data:&[i32])->Option>{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_one` [INFO] [stdout] --> src/main.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn add_one(origin:u32)->u32{ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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 3.68s [INFO] [stderr] Running `cargo check` to verify 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking minigrep v0.1.0 (/tmp/fixit) [INFO] [stdout] warning: function is never used: `add_one` [INFO] [stdout] --> src/main.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn add_one(origin:u32)->u32{ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Cons` [INFO] [stdout] --> src/bin/smart_pointer.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | Cons(u32,Box), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nil` [INFO] [stdout] --> src/bin/smart_pointer.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/thread.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | / thread::spawn(move||{ [INFO] [stdout] 23 | | thread::sleep(Duration::from_secs(1)); [INFO] [stdout] 24 | | println!("{}",info.to_uppercase()); [INFO] [stdout] 25 | | }).join(); [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/bin/leetcod.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/bin/leetcod.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | struct Solution(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_two_numbers` [INFO] [stdout] --> src/bin/leetcod.rs:45:12 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `constructor_list` [INFO] [stdout] --> src/bin/leetcod.rs:77:4 [INFO] [stdout] | [INFO] [stdout] 77 | fn constructor_list(data:&[i32])->Option>{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.67s [INFO] running `Command { std: "docker" "inspect" "33c0b8b1b51cc9f3ce0fa41139a879d32853e82e70d0dc2d66bf9de95c2b7281", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33c0b8b1b51cc9f3ce0fa41139a879d32853e82e70d0dc2d66bf9de95c2b7281", kill_on_drop: false }` [INFO] [stdout] 33c0b8b1b51cc9f3ce0fa41139a879d32853e82e70d0dc2d66bf9de95c2b7281