[INFO] cloning repository https://github.com/enjeyw/RustMaze [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/enjeyw/RustMaze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenjeyw%2FRustMaze", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenjeyw%2FRustMaze'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ecc661ca474c26d9a516a92b7e53b953519053fe [INFO] checking enjeyw/RustMaze against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenjeyw%2FRustMaze" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/enjeyw/RustMaze on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/enjeyw/RustMaze [INFO] finished tweaking git repo https://github.com/enjeyw/RustMaze [INFO] tweaked toml for git repo https://github.com/enjeyw/RustMaze written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/enjeyw/RustMaze already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 11a8bd13dfd3df3fced6b0b7bf7f45b5564d45f87c86cf519a6e6e2d5adb4ac4 [INFO] running `Command { std: "docker" "start" "-a" "11a8bd13dfd3df3fced6b0b7bf7f45b5564d45f87c86cf519a6e6e2d5adb4ac4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "11a8bd13dfd3df3fced6b0b7bf7f45b5564d45f87c86cf519a6e6e2d5adb4ac4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11a8bd13dfd3df3fced6b0b7bf7f45b5564d45f87c86cf519a6e6e2d5adb4ac4", kill_on_drop: false }` [INFO] [stdout] 11a8bd13dfd3df3fced6b0b7bf7f45b5564d45f87c86cf519a6e6e2d5adb4ac4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] da8c10dcf33f1773c889b6fff19541421c54f07c9cdafe2ccb546997963e2e8f [INFO] running `Command { std: "docker" "start" "-a" "da8c10dcf33f1773c889b6fff19541421c54f07c9cdafe2ccb546997963e2e8f", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling signal-hook v0.3.9 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking signal-hook-mio v0.2.1 [INFO] [stderr] Checking crossterm v0.20.0 [INFO] [stderr] Checking maze v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `fmt`, `thread`, `time` [INFO] [stdout] --> src/main.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{thread, time, fmt}; [INFO] [stdout] | ^^^^^^ ^^^^ ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Stdout` [INFO] [stdout] --> src/main.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{Stdout, Write, stdout}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::Rng` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rand::Rng; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `stdout` [INFO] [stdout] --> src/matrix.rs:1:30 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{Stdout, Write, stdout}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fmt`, `thread`, `time` [INFO] [stdout] --> src/main.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{thread, time, fmt}; [INFO] [stdout] | ^^^^^^ ^^^^ ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Stdout` [INFO] [stdout] --> src/main.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{Stdout, Write, stdout}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::Rng` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rand::Rng; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `stdout` [INFO] [stdout] --> src/matrix.rs:1:30 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{Stdout, Write, stdout}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stdout` [INFO] [stdout] --> src/main.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let mut stdout = stdout(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout` [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/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let mut stdout = stdout(); [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:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | let mut m = generate_path(10,10,5); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stdout` [INFO] [stdout] --> src/main.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let mut stdout = stdout(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout` [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/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let mut stdout = stdout(); [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:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | let mut m = generate_path(10,10,5); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private trait `MatrixValue` in public interface (error E0445) [INFO] [stdout] --> src/matrix.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | / impl Matrix [INFO] [stdout] 13 | | where T: MatrixValue + Copy [INFO] [stdout] 14 | | { [INFO] [stdout] 15 | | pub fn new(rows: usize, cols: usize) -> Matrix { [INFO] [stdout] ... | [INFO] [stdout] 58 | | [INFO] [stdout] 59 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(private_in_public)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_row` [INFO] [stdout] --> src/matrix.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 52 | pub fn add_row(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Wall` [INFO] [stdout] --> src/matrix.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | Wall, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private trait `MatrixValue` in public interface (error E0445) [INFO] [stdout] --> src/matrix.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | / impl Matrix [INFO] [stdout] 13 | | where T: MatrixValue + Copy [INFO] [stdout] 14 | | { [INFO] [stdout] 15 | | pub fn new(rows: usize, cols: usize) -> Matrix { [INFO] [stdout] ... | [INFO] [stdout] 58 | | [INFO] [stdout] 59 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(private_in_public)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_row` [INFO] [stdout] --> src/matrix.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 52 | pub fn add_row(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Wall` [INFO] [stdout] --> src/matrix.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | Wall, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.78s [INFO] running `Command { std: "docker" "inspect" "da8c10dcf33f1773c889b6fff19541421c54f07c9cdafe2ccb546997963e2e8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da8c10dcf33f1773c889b6fff19541421c54f07c9cdafe2ccb546997963e2e8f", kill_on_drop: false }` [INFO] [stdout] da8c10dcf33f1773c889b6fff19541421c54f07c9cdafe2ccb546997963e2e8f