[INFO] fetching crate puzzle_cube 0.1.3... [INFO] checking puzzle_cube-0.1.3 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] extracting crate puzzle_cube 0.1.3 into /workspace/builds/worker-15/source [INFO] validating manifest of crates.io crate puzzle_cube 0.1.3 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-15/source/Cargo.toml [INFO] crate crates.io crate puzzle_cube 0.1.3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded winapi-util v0.1.3 [INFO] [stderr] Downloaded cfg-if v0.1.10 [INFO] [stderr] Downloaded dirs-sys v0.3.4 [INFO] [stderr] Downloaded rust-argon2 v0.5.1 [INFO] [stderr] Downloaded crossbeam-utils v0.6.6 [INFO] [stderr] Downloaded dirs v2.0.2 [INFO] [stderr] Downloaded termcolor v1.1.0 [INFO] [stderr] Downloaded failure_derive v0.1.6 [INFO] [stderr] Downloaded rand_os v0.1.3 [INFO] [stderr] Downloaded arrayvec v0.5.1 [INFO] [stderr] Downloaded unicode-xid v0.2.0 [INFO] [stderr] Downloaded synstructure v0.12.3 [INFO] [stderr] Downloaded lazy_static v1.4.0 [INFO] [stderr] Downloaded termios v0.2.2 [INFO] [stderr] Downloaded rustc-demangle v0.1.16 [INFO] [stderr] Downloaded failure v0.1.6 [INFO] [stderr] Downloaded quote v1.0.2 [INFO] [stderr] Downloaded base64 v0.10.1 [INFO] [stderr] Downloaded syn v1.0.13 [INFO] [stderr] Downloaded cc v1.0.50 [INFO] [stderr] Downloaded backtrace v0.3.42 [INFO] [stderr] Downloaded proc-macro2 v1.0.7 [INFO] [stderr] Downloaded bitflags v1.2.1 [INFO] [stderr] Downloaded backtrace-sys v0.1.32 [INFO] [stderr] Downloaded cloudabi v0.0.3 [INFO] [stderr] Downloaded redox_syscall v0.1.56 [INFO] [stderr] Downloaded constant_time_eq v0.1.5 [INFO] [stderr] Downloaded blake2b_simd v0.5.10 [INFO] [stderr] Downloaded getch v0.2.1 [INFO] [stderr] Downloaded byteorder v1.3.2 [INFO] [stderr] Downloaded redox_users v0.3.1 [INFO] [stderr] Downloaded arrayref v0.3.5 [INFO] [stderr] Downloaded libc v0.2.66 [INFO] [stderr] Downloaded winapi v0.3.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9ae9c3d79fc1ac982214c49f46c3893fb4145a468616722e9f8074ed9a28c840 [INFO] running `Command { std: "docker" "start" "-a" "9ae9c3d79fc1ac982214c49f46c3893fb4145a468616722e9f8074ed9a28c840", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9ae9c3d79fc1ac982214c49f46c3893fb4145a468616722e9f8074ed9a28c840", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ae9c3d79fc1ac982214c49f46c3893fb4145a468616722e9f8074ed9a28c840", kill_on_drop: false }` [INFO] [stdout] 9ae9c3d79fc1ac982214c49f46c3893fb4145a468616722e9f8074ed9a28c840 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3b29c61ae1a176b3592854a04e6d77925cdb9f09d4261aa99014b18f230b7449 [INFO] running `Command { std: "docker" "start" "-a" "3b29c61ae1a176b3592854a04e6d77925cdb9f09d4261aa99014b18f230b7449", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking termios v0.2.2 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking 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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write`, `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: 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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write`, `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] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/cube.rs:461:13 [INFO] [stdout] | [INFO] [stdout] 461 | _ => (), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` 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] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [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] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [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: 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)]` on by default [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)]` 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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.06s [INFO] running `Command { std: "docker" "inspect" "3b29c61ae1a176b3592854a04e6d77925cdb9f09d4261aa99014b18f230b7449", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b29c61ae1a176b3592854a04e6d77925cdb9f09d4261aa99014b18f230b7449", kill_on_drop: false }` [INFO] [stdout] 3b29c61ae1a176b3592854a04e6d77925cdb9f09d4261aa99014b18f230b7449