[INFO] cloning repository https://github.com/vaqxai/puz6a [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vaqxai/puz6a" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaqxai%2Fpuz6a", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaqxai%2Fpuz6a'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4ce012ef5454ae8dafaec63c6c4a6a7c7e65d1bf [INFO] building vaqxai/puz6a 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%2Fvaqxai%2Fpuz6a" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vaqxai/puz6a 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/vaqxai/puz6a [INFO] finished tweaking git repo https://github.com/vaqxai/puz6a [INFO] tweaked toml for git repo https://github.com/vaqxai/puz6a written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/vaqxai/puz6a 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] [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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] cbc3d71c1703c10701d8c6d03dd9c261bff3d20f25a671b3c3de7aa8a4e7f779 [INFO] running `Command { std: "docker" "start" "-a" "cbc3d71c1703c10701d8c6d03dd9c261bff3d20f25a671b3c3de7aa8a4e7f779", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cbc3d71c1703c10701d8c6d03dd9c261bff3d20f25a671b3c3de7aa8a4e7f779", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cbc3d71c1703c10701d8c6d03dd9c261bff3d20f25a671b3c3de7aa8a4e7f779", kill_on_drop: false }` [INFO] [stdout] cbc3d71c1703c10701d8c6d03dd9c261bff3d20f25a671b3c3de7aa8a4e7f779 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 80fc37c77e615870a3d7f0092f261f89c77338ed9bfc83f1234452e587370107 [INFO] running `Command { std: "docker" "start" "-a" "80fc37c77e615870a3d7f0092f261f89c77338ed9bfc83f1234452e587370107", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling puz6a v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::seq::SliceRandom` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rand::seq::SliceRandom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | let mut men = Man::from_slice(&[('A', 1), ('B', 3), ('C', 4), ('D', 6), ('E', 8), ('F', 9)]); [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:155:9 [INFO] [stdout] | [INFO] [stdout] 155 | let mut bridge = Bridge::new(men); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | let mut total_cost = 0; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `time` is never read [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Man { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 6 | time: i32, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Man` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `get_by_name_from_vec` is never used [INFO] [stdout] --> src/main.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Man { [INFO] [stdout] | -------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn get_by_name_from_vec(men: &Vec::, name: char) -> (isize, i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `cross_sel_ret`, `cross`, `everyone_went_through`, and `get_first_two_names` are never used [INFO] [stdout] --> src/main.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 47 | impl Bridge { [INFO] [stdout] | ----------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 52 | pub fn cross_sel_ret(&mut self, m1_name: char, m2_name: char, ret_name: char) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 79 | pub fn cross(&mut self, m1_name: char, m2_name: char) -> (i32, char) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 136 | pub fn everyone_went_through(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 140 | pub fn get_first_two_names(&self) -> (char, char) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.61s [INFO] running `Command { std: "docker" "inspect" "80fc37c77e615870a3d7f0092f261f89c77338ed9bfc83f1234452e587370107", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80fc37c77e615870a3d7f0092f261f89c77338ed9bfc83f1234452e587370107", kill_on_drop: false }` [INFO] [stdout] 80fc37c77e615870a3d7f0092f261f89c77338ed9bfc83f1234452e587370107 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d1ec9229c4470906e546b348976add78e9fb34aa452da4562c6d1e3a495e7ddf [INFO] running `Command { std: "docker" "start" "-a" "d1ec9229c4470906e546b348976add78e9fb34aa452da4562c6d1e3a495e7ddf", kill_on_drop: false }` [INFO] [stderr] Compiling puz6a v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::seq::SliceRandom` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rand::seq::SliceRandom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | let mut men = Man::from_slice(&[('A', 1), ('B', 3), ('C', 4), ('D', 6), ('E', 8), ('F', 9)]); [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:155:9 [INFO] [stdout] | [INFO] [stdout] 155 | let mut bridge = Bridge::new(men); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | let mut total_cost = 0; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `time` is never read [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Man { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 6 | time: i32, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Man` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `get_by_name_from_vec` is never used [INFO] [stdout] --> src/main.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Man { [INFO] [stdout] | -------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn get_by_name_from_vec(men: &Vec::, name: char) -> (isize, i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `cross_sel_ret`, `cross`, `everyone_went_through`, and `get_first_two_names` are never used [INFO] [stdout] --> src/main.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 47 | impl Bridge { [INFO] [stdout] | ----------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 52 | pub fn cross_sel_ret(&mut self, m1_name: char, m2_name: char, ret_name: char) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 79 | pub fn cross(&mut self, m1_name: char, m2_name: char) -> (i32, char) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 136 | pub fn everyone_went_through(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 140 | pub fn get_first_two_names(&self) -> (char, char) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "d1ec9229c4470906e546b348976add78e9fb34aa452da4562c6d1e3a495e7ddf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d1ec9229c4470906e546b348976add78e9fb34aa452da4562c6d1e3a495e7ddf", kill_on_drop: false }` [INFO] [stdout] d1ec9229c4470906e546b348976add78e9fb34aa452da4562c6d1e3a495e7ddf