[INFO] cloning repository https://github.com/sumeet/ddsolver [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sumeet/ddsolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumeet%2Fddsolver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumeet%2Fddsolver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 094c8ab665c05b5dc5bb82a4af0037731d7b6d8c [INFO] checking sumeet/ddsolver against master#bbefc9837f4157cc09ed60e6d7b21e345d582dd9 for pr-114571-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumeet%2Fddsolver" "/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/sumeet/ddsolver on toolchain bbefc9837f4157cc09ed60e6d7b21e345d582dd9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbefc9837f4157cc09ed60e6d7b21e345d582dd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sumeet/ddsolver [INFO] finished tweaking git repo https://github.com/sumeet/ddsolver [INFO] tweaked toml for git repo https://github.com/sumeet/ddsolver written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sumeet/ddsolver 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" "+bbefc9837f4157cc09ed60e6d7b21e345d582dd9" "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 [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking sumeet/ddsolver against try#2399cef65c47f346b5fa9df51f48df0acd4a9d85 for pr-114571-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumeet%2Fddsolver" "/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/sumeet/ddsolver on toolchain 2399cef65c47f346b5fa9df51f48df0acd4a9d85 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sumeet/ddsolver [INFO] finished tweaking git repo https://github.com/sumeet/ddsolver [INFO] tweaked toml for git repo https://github.com/sumeet/ddsolver written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sumeet/ddsolver 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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "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 crossbeam-epoch v0.9.9 [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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2ccd3a4e1fd72d2611c32c6ae59810e74bf9b7c4d361ebec5340f061f71707ef [INFO] running `Command { std: "docker" "start" "-a" "2ccd3a4e1fd72d2611c32c6ae59810e74bf9b7c4d361ebec5340f061f71707ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2ccd3a4e1fd72d2611c32c6ae59810e74bf9b7c4d361ebec5340f061f71707ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ccd3a4e1fd72d2611c32c6ae59810e74bf9b7c4d361ebec5340f061f71707ef", kill_on_drop: false }` [INFO] [stdout] 2ccd3a4e1fd72d2611c32c6ae59810e74bf9b7c4d361ebec5340f061f71707ef [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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a16f09be99ef9bc3a3d2db8bcd6ceafb5d6279b08f27dfc527f31250957a25e [INFO] running `Command { std: "docker" "start" "-a" "9a16f09be99ef9bc3a3d2db8bcd6ceafb5d6279b08f27dfc527f31250957a25e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.10 [INFO] [stderr] Checking once_cell v1.13.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking funty v2.0.0 [INFO] [stderr] Checking either v1.7.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Checking wyz v0.5.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.9 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking bitvec v1.0.0 [INFO] [stderr] Checking crossbeam-channel v0.5.5 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking ddsolver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `bitvec::macros::internal::funty::Fundamental` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use bitvec::macros::internal::funty::Fundamental; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bitvec::macros::internal::funty::Fundamental` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use bitvec::macros::internal::funty::Fundamental; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bitvec::prelude::BitStore` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use bitvec::prelude::BitStore; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bitvec::prelude::BitStore` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use bitvec::prelude::BitStore; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:332:9 [INFO] [stdout] | [INFO] [stdout] 332 | let mut found_spaces_bits_view = found_spaces_bits.view_bits_mut::(); [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:334:9 [INFO] [stdout] | [INFO] [stdout] 334 | let mut visited_bits_view = visited_bits.view_bits_mut::(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Space` is never used [INFO] [stdout] --> src/main.rs:308:6 [INFO] [stdout] | [INFO] [stdout] 308 | enum Space { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_grid` is never used [INFO] [stdout] --> src/main.rs:353:4 [INFO] [stdout] | [INFO] [stdout] 353 | fn print_grid(cols: ArrayVec<[[bool; 8]; 8]>) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: path statement with no effect [INFO] [stdout] --> src/main.rs:134:21 [INFO] [stdout] | [INFO] [stdout] 134 | next_q_item; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(path_statements)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:332:9 [INFO] [stdout] | [INFO] [stdout] 332 | let mut found_spaces_bits_view = found_spaces_bits.view_bits_mut::(); [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:334:9 [INFO] [stdout] | [INFO] [stdout] 334 | let mut visited_bits_view = visited_bits.view_bits_mut::(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Space` is never used [INFO] [stdout] --> src/main.rs:308:6 [INFO] [stdout] | [INFO] [stdout] 308 | enum Space { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_grid` is never used [INFO] [stdout] --> src/main.rs:353:4 [INFO] [stdout] | [INFO] [stdout] 353 | fn print_grid(cols: ArrayVec<[[bool; 8]; 8]>) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: path statement with no effect [INFO] [stdout] --> src/main.rs:134:21 [INFO] [stdout] | [INFO] [stdout] 134 | next_q_item; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(path_statements)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.53s [INFO] running `Command { std: "docker" "inspect" "9a16f09be99ef9bc3a3d2db8bcd6ceafb5d6279b08f27dfc527f31250957a25e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a16f09be99ef9bc3a3d2db8bcd6ceafb5d6279b08f27dfc527f31250957a25e", kill_on_drop: false }` [INFO] [stdout] 9a16f09be99ef9bc3a3d2db8bcd6ceafb5d6279b08f27dfc527f31250957a25e