[INFO] fetching crate puzzle_cube 0.1.3... [INFO] building puzzle_cube-0.1.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1 [INFO] extracting crate puzzle_cube 0.1.3 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate puzzle_cube 0.1.3 [INFO] finished tweaking crates.io crate puzzle_cube 0.1.3 [INFO] tweaked toml for crates.io crate puzzle_cube 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate puzzle_cube 0.1.3 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate puzzle_cube 0.1.3 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded getch v0.2.1 [INFO] [stderr] Downloaded byteorder v1.3.2 [INFO] [stderr] Downloaded failure_derive v0.1.6 [INFO] [stderr] Downloaded termios v0.2.2 [INFO] [stderr] Downloaded base64 v0.10.1 [INFO] [stderr] Downloaded rust-argon2 v0.5.1 [INFO] [stderr] Downloaded backtrace v0.3.42 [INFO] [stderr] Downloaded proc-macro2 v1.0.7 [INFO] [stderr] Downloaded failure v0.1.6 [INFO] [stderr] Downloaded arrayref v0.3.5 [INFO] [stderr] Downloaded redox_users v0.3.1 [INFO] [stderr] Downloaded winapi-util v0.1.3 [INFO] [stderr] Downloaded syn v1.0.13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6f5b9131807aed47a195c560eafeed438186651349725a0b09cbfc13f63fcfe3 [INFO] running `Command { std: "docker" "start" "-a" "6f5b9131807aed47a195c560eafeed438186651349725a0b09cbfc13f63fcfe3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6f5b9131807aed47a195c560eafeed438186651349725a0b09cbfc13f63fcfe3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f5b9131807aed47a195c560eafeed438186651349725a0b09cbfc13f63fcfe3", kill_on_drop: false }` [INFO] [stdout] 6f5b9131807aed47a195c560eafeed438186651349725a0b09cbfc13f63fcfe3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9b94ec989bd24e2525f791f90d7c05fb5442ac93a0fb15a55b087a285935a601 [INFO] running `Command { std: "docker" "start" "-a" "9b94ec989bd24e2525f791f90d7c05fb5442ac93a0fb15a55b087a285935a601", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling dirs-sys v0.3.4 [INFO] [stderr] Compiling termios v0.2.2 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling getch v0.2.1 [INFO] [stderr] Compiling puzzle_cube v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/cube.rs:435:23 [INFO] [stdout] | [INFO] [stdout] 435 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `self` [INFO] [stdout] --> src/main.rs:7:15 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/cube.rs:461:13 [INFO] [stdout] | [INFO] [stdout] 461 | _ => (), [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> src/cube.rs:461:13 [INFO] [stdout] | [INFO] [stdout] 440 | Color::White => stdout [INFO] [stdout] | ------------ matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 443 | Color::Green => stdout [INFO] [stdout] | ------------ matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 446 | Color::Red => stdout [INFO] [stdout] | ---------- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 449 | Color::Blue => stdout [INFO] [stdout] | ----------- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 461 | _ => (), [INFO] [stdout] | ^ ...and 3 other patterns collectively make this unreachable [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `selected` is never read [INFO] [stdout] --> src/main.rs:142:21 [INFO] [stdout] | [INFO] [stdout] 142 | selected = true; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `selected` is never read [INFO] [stdout] --> src/main.rs:146:21 [INFO] [stdout] | [INFO] [stdout] 146 | selected = true; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `input` [INFO] [stdout] --> src/main.rs:165:13 [INFO] [stdout] | [INFO] [stdout] 165 | let input = str::from_utf8(get).unwrap(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_input` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cube.rs:464:9 [INFO] [stdout] | [INFO] [stdout] 464 | write!(&mut stdout, "\u{25A0} "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 464 | let _ = write!(&mut stdout, "\u{25A0} "); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.17s [INFO] running `Command { std: "docker" "inspect" "9b94ec989bd24e2525f791f90d7c05fb5442ac93a0fb15a55b087a285935a601", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b94ec989bd24e2525f791f90d7c05fb5442ac93a0fb15a55b087a285935a601", kill_on_drop: false }` [INFO] [stdout] 9b94ec989bd24e2525f791f90d7c05fb5442ac93a0fb15a55b087a285935a601 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3abaa421fc09eca19ba58e5d5295bbade267cc2283b447cb5efbf9eb2ecf1b56 [INFO] running `Command { std: "docker" "start" "-a" "3abaa421fc09eca19ba58e5d5295bbade267cc2283b447cb5efbf9eb2ecf1b56", kill_on_drop: false }` [INFO] [stderr] Compiling puzzle_cube v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/cube.rs:435:23 [INFO] [stdout] | [INFO] [stdout] 435 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `self` [INFO] [stdout] --> src/main.rs:7:15 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/cube.rs:461:13 [INFO] [stdout] | [INFO] [stdout] 461 | _ => (), [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> src/cube.rs:461:13 [INFO] [stdout] | [INFO] [stdout] 440 | Color::White => stdout [INFO] [stdout] | ------------ matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 443 | Color::Green => stdout [INFO] [stdout] | ------------ matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 446 | Color::Red => stdout [INFO] [stdout] | ---------- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 449 | Color::Blue => stdout [INFO] [stdout] | ----------- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 461 | _ => (), [INFO] [stdout] | ^ ...and 3 other patterns collectively make this unreachable [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `selected` is never read [INFO] [stdout] --> src/main.rs:142:21 [INFO] [stdout] | [INFO] [stdout] 142 | selected = true; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `selected` is never read [INFO] [stdout] --> src/main.rs:146:21 [INFO] [stdout] | [INFO] [stdout] 146 | selected = true; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `input` [INFO] [stdout] --> src/main.rs:165:13 [INFO] [stdout] | [INFO] [stdout] 165 | let input = str::from_utf8(get).unwrap(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_input` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cube.rs:464:9 [INFO] [stdout] | [INFO] [stdout] 464 | write!(&mut stdout, "\u{25A0} "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 464 | let _ = write!(&mut stdout, "\u{25A0} "); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `Command { std: "docker" "inspect" "3abaa421fc09eca19ba58e5d5295bbade267cc2283b447cb5efbf9eb2ecf1b56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3abaa421fc09eca19ba58e5d5295bbade267cc2283b447cb5efbf9eb2ecf1b56", kill_on_drop: false }` [INFO] [stdout] 3abaa421fc09eca19ba58e5d5295bbade267cc2283b447cb5efbf9eb2ecf1b56