[INFO] cloning repository https://github.com/risboo6909/aoc2019-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/risboo6909/aoc2019-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frisboo6909%2Faoc2019-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frisboo6909%2Faoc2019-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d20434cadc506d024f1b4089828615501015b25f [INFO] checking risboo6909/aoc2019-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frisboo6909%2Faoc2019-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/risboo6909/aoc2019-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/risboo6909/aoc2019-rust [INFO] finished tweaking git repo https://github.com/risboo6909/aoc2019-rust [INFO] tweaked toml for git repo https://github.com/risboo6909/aoc2019-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/risboo6909/aoc2019-rust 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded permutohedron v0.2.4 [INFO] [stderr] Downloaded num-bigint v0.2.3 [INFO] [stderr] Downloaded miniz_oxide v0.3.5 [INFO] [stderr] Downloaded hermit-abi v0.1.3 [INFO] [stderr] Downloaded crossbeam v0.7.3 [INFO] [stderr] Downloaded crossbeam-epoch v0.8.0 [INFO] [stderr] Downloaded crossbeam-deque v0.7.2 [INFO] [stderr] Downloaded crossbeam-queue v0.2.0 [INFO] [stderr] Downloaded rayon v1.2.1 [INFO] [stderr] Downloaded image v0.23.0-preview.0 [INFO] [stderr] Downloaded rayon-core v1.6.1 [INFO] [stderr] Downloaded png v0.15.2 [INFO] [stderr] Downloaded tiff v0.4.0 [INFO] [stderr] Downloaded atty v0.2.13 [INFO] [stderr] Downloaded colored v1.9.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 32b78a9669771ae5b59c3ad7f52fc46d11913209d597fa64f33a243c66d16dc2 [INFO] running `Command { std: "docker" "start" "-a" "32b78a9669771ae5b59c3ad7f52fc46d11913209d597fa64f33a243c66d16dc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "32b78a9669771ae5b59c3ad7f52fc46d11913209d597fa64f33a243c66d16dc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "32b78a9669771ae5b59c3ad7f52fc46d11913209d597fa64f33a243c66d16dc2", kill_on_drop: false }` [INFO] [stdout] 32b78a9669771ae5b59c3ad7f52fc46d11913209d597fa64f33a243c66d16dc2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6be04076ac92323ff23e3ef431bb91d7e25d133aa15311221a0d1ccf047be449 [INFO] running `Command { std: "docker" "start" "-a" "6be04076ac92323ff23e3ef431bb91d7e25d133aa15311221a0d1ccf047be449", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Compiling cc v1.0.47 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Checking adler32 v1.0.4 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling rayon-core v1.6.1 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking miniz_oxide v0.3.5 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking permutohedron v0.2.4 [INFO] [stderr] Compiling num-traits v0.2.10 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling num-bigint v0.2.3 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking tiff v0.4.0 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Checking crossbeam-queue v0.2.0 [INFO] [stderr] Checking crossbeam-channel v0.4.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking num_cpus v1.12.0 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking colored v1.9.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking png v0.15.2 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking rayon v1.2.1 [INFO] [stderr] Checking backtrace v0.3.40 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Checking jpeg-decoder v0.1.16 [INFO] [stderr] Checking image v0.23.0-preview.0 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] Checking utils v0.1.0 (/opt/rustwide/workdir/utils) [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> utils/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | string::ToString, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToString` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> utils/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | string::ToString, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToString` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking problems v0.1.0 (/opt/rustwide/workdir/problems) [INFO] [stdout] warning: the item `image` is imported redundantly [INFO] [stdout] --> problems/src/problem8/mod.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use image; [INFO] [stdout] | ^^^^^ the item `image` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Sync` is imported redundantly [INFO] [stdout] --> problems/src/main.rs:20:29 [INFO] [stdout] | [INFO] [stdout] 20 | use std::{time::SystemTime, marker::Sync, sync::Arc}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Sync` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `num_cpus` is imported redundantly [INFO] [stdout] --> problems/src/main.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | use num_cpus; [INFO] [stdout] | ^^^^^^^^ the item `num_cpus` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `image` is imported redundantly [INFO] [stdout] --> problems/src/problem8/mod.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use image; [INFO] [stdout] | ^^^^^ the item `image` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Sync` is imported redundantly [INFO] [stdout] --> problems/src/main.rs:20:29 [INFO] [stdout] | [INFO] [stdout] 20 | use std::{time::SystemTime, marker::Sync, sync::Arc}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Sync` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `num_cpus` is imported redundantly [INFO] [stdout] --> problems/src/main.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | use num_cpus; [INFO] [stdout] | ^^^^^^^^ the item `num_cpus` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> problems/src/problem3/mod.rs:58:19 [INFO] [stdout] | [INFO] [stdout] 58 | fn advance_cursor(mut cursor: &mut Cursor, dir: Dir) { [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] --> problems/src/problem3/mod.rs:58:19 [INFO] [stdout] | [INFO] [stdout] 58 | fn advance_cursor(mut cursor: &mut Cursor, dir: Dir) { [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.09s [INFO] running `Command { std: "docker" "inspect" "6be04076ac92323ff23e3ef431bb91d7e25d133aa15311221a0d1ccf047be449", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6be04076ac92323ff23e3ef431bb91d7e25d133aa15311221a0d1ccf047be449", kill_on_drop: false }` [INFO] [stdout] 6be04076ac92323ff23e3ef431bb91d7e25d133aa15311221a0d1ccf047be449 [INFO] checking risboo6909/aoc2019-rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frisboo6909%2Faoc2019-rust" "/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/risboo6909/aoc2019-rust on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/risboo6909/aoc2019-rust [INFO] finished tweaking git repo https://github.com/risboo6909/aoc2019-rust [INFO] tweaked toml for git repo https://github.com/risboo6909/aoc2019-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/risboo6909/aoc2019-rust 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] af6edfcdb19c49e10a6b4570436025ba18572e2ea8d70699e60515e811d12ad9 [INFO] running `Command { std: "docker" "start" "-a" "af6edfcdb19c49e10a6b4570436025ba18572e2ea8d70699e60515e811d12ad9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "af6edfcdb19c49e10a6b4570436025ba18572e2ea8d70699e60515e811d12ad9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af6edfcdb19c49e10a6b4570436025ba18572e2ea8d70699e60515e811d12ad9", kill_on_drop: false }` [INFO] [stdout] af6edfcdb19c49e10a6b4570436025ba18572e2ea8d70699e60515e811d12ad9 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 523adfc2397004389817b0778c5ea4025d42131425b98d487bc49168e3e48a49 [INFO] running `Command { std: "docker" "start" "-a" "523adfc2397004389817b0778c5ea4025d42131425b98d487bc49168e3e48a49", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling cc v1.0.47 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking adler32 v1.0.4 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling rayon-core v1.6.1 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking miniz_oxide v0.3.5 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Checking permutohedron v0.2.4 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling num-traits v0.2.10 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling num-bigint v0.2.3 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking num_cpus v1.12.0 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking colored v1.9.0 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking tiff v0.4.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking crossbeam-queue v0.2.0 [INFO] [stderr] Checking crossbeam-channel v0.4.0 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking png v0.15.2 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking rayon v1.2.1 [INFO] [stderr] Checking backtrace v0.3.40 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking jpeg-decoder v0.1.16 [INFO] [stderr] Checking image v0.23.0-preview.0 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] Checking utils v0.1.0 (/opt/rustwide/workdir/utils) [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> utils/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | string::ToString, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToString` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> utils/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | string::ToString, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToString` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking problems v0.1.0 (/opt/rustwide/workdir/problems) [INFO] [stdout] warning: the item `image` is imported redundantly [INFO] [stdout] --> problems/src/problem8/mod.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use image; [INFO] [stdout] | ^^^^^ the item `image` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Sync` is imported redundantly [INFO] [stdout] --> problems/src/main.rs:20:29 [INFO] [stdout] | [INFO] [stdout] 20 | use std::{time::SystemTime, marker::Sync, sync::Arc}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Sync` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `num_cpus` is imported redundantly [INFO] [stdout] --> problems/src/main.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | use num_cpus; [INFO] [stdout] | ^^^^^^^^ the item `num_cpus` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `image` is imported redundantly [INFO] [stdout] --> problems/src/problem8/mod.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use image; [INFO] [stdout] | ^^^^^ the item `image` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Sync` is imported redundantly [INFO] [stdout] --> problems/src/main.rs:20:29 [INFO] [stdout] | [INFO] [stdout] 20 | use std::{time::SystemTime, marker::Sync, sync::Arc}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Sync` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `num_cpus` is imported redundantly [INFO] [stdout] --> problems/src/main.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | use num_cpus; [INFO] [stdout] | ^^^^^^^^ the item `num_cpus` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> problems/src/problem3/mod.rs:58:19 [INFO] [stdout] | [INFO] [stdout] 58 | fn advance_cursor(mut cursor: &mut Cursor, dir: Dir) { [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] --> problems/src/problem3/mod.rs:58:19 [INFO] [stdout] | [INFO] [stdout] 58 | fn advance_cursor(mut cursor: &mut Cursor, dir: Dir) { [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.74s [INFO] running `Command { std: "docker" "inspect" "523adfc2397004389817b0778c5ea4025d42131425b98d487bc49168e3e48a49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "523adfc2397004389817b0778c5ea4025d42131425b98d487bc49168e3e48a49", kill_on_drop: false }` [INFO] [stdout] 523adfc2397004389817b0778c5ea4025d42131425b98d487bc49168e3e48a49