[INFO] cloning repository https://github.com/amarrerod/dna_search [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amarrerod/dna_search" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarrerod%2Fdna_search", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarrerod%2Fdna_search'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e3182d55640283df1c33bcbbf453bfba2e1341fd [INFO] checking amarrerod/dna_search against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarrerod%2Fdna_search" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/amarrerod/dna_search on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/amarrerod/dna_search [INFO] finished tweaking git repo https://github.com/amarrerod/dna_search [INFO] tweaked toml for git repo https://github.com/amarrerod/dna_search written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/amarrerod/dna_search 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b82af1769564d299925a6d24394f6a122dd3e5bc73bc9281ffc3be9dd774c8ed [INFO] running `Command { std: "docker" "start" "-a" "b82af1769564d299925a6d24394f6a122dd3e5bc73bc9281ffc3be9dd774c8ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b82af1769564d299925a6d24394f6a122dd3e5bc73bc9281ffc3be9dd774c8ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b82af1769564d299925a6d24394f6a122dd3e5bc73bc9281ffc3be9dd774c8ed", kill_on_drop: false }` [INFO] [stdout] b82af1769564d299925a6d24394f6a122dd3e5bc73bc9281ffc3be9dd774c8ed [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2370c9b2899d4dc625b71ec059fa10f364bfc79c1e1793c7cd4bf3ff664e73d9 [INFO] running `Command { std: "docker" "start" "-a" "2370c9b2899d4dc625b71ec059fa10f364bfc79c1e1793c7cd4bf3ff664e73d9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.135 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking classic_cs_problems v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `OccupiedEntry` and `VacantEntry` [INFO] [stdout] --> src/maze_solving/search.rs:1:35 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::btree_map::{VacantEntry, OccupiedEntry}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `OccupiedEntry` and `VacantEntry` [INFO] [stdout] --> src/maze_solving/search.rs:1:35 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::btree_map::{VacantEntry, OccupiedEntry}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/maze_solving/search.rs:10:18 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn dfs(maze: &Maze) -> Option { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 10 | pub fn dfs(maze: &Maze) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/maze_solving/search.rs:39:18 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn bfs(maze: &Maze) -> Option { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 39 | pub fn bfs(maze: &Maze) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/maze_solving/search.rs:67:21 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn a_star(maze: &Maze) -> Option { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 67 | pub fn a_star(maze: &Maze) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/maze_solving/solution.rs:10:22 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn new(maze: &Maze, path: Vec) -> Solution { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 10 | pub fn new(maze: &Maze, path: Vec) -> Solution<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/maze_solving/search.rs:10:18 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn dfs(maze: &Maze) -> Option { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 10 | pub fn dfs(maze: &Maze) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/maze_solving/search.rs:39:18 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn bfs(maze: &Maze) -> Option { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 39 | pub fn bfs(maze: &Maze) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/maze_solving/search.rs:67:21 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn a_star(maze: &Maze) -> Option { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 67 | pub fn a_star(maze: &Maze) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/maze_solving/solution.rs:10:22 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn new(maze: &Maze, path: Vec) -> Solution { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 10 | pub fn new(maze: &Maze, path: Vec) -> Solution<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.41s [INFO] running `Command { std: "docker" "inspect" "2370c9b2899d4dc625b71ec059fa10f364bfc79c1e1793c7cd4bf3ff664e73d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2370c9b2899d4dc625b71ec059fa10f364bfc79c1e1793c7cd4bf3ff664e73d9", kill_on_drop: false }` [INFO] [stdout] 2370c9b2899d4dc625b71ec059fa10f364bfc79c1e1793c7cd4bf3ff664e73d9