[INFO] cloning repository https://github.com/queuedq/exact-cover-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/queuedq/exact-cover-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqueuedq%2Fexact-cover-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqueuedq%2Fexact-cover-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4243e392d16ba44917ad6ffb5c3f6b1bafbd4774 [INFO] testing queuedq/exact-cover-rs against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqueuedq%2Fexact-cover-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/queuedq/exact-cover-rs on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/queuedq/exact-cover-rs [INFO] finished tweaking git repo https://github.com/queuedq/exact-cover-rs [INFO] tweaked toml for git repo https://github.com/queuedq/exact-cover-rs written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/queuedq/exact-cover-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fc9651caabf747bca18c1c8cf0b5ce5d6630bcbcbd6b6fdfe9dc7d87abc5525c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "fc9651caabf747bca18c1c8cf0b5ce5d6630bcbcbd6b6fdfe9dc7d87abc5525c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc9651caabf747bca18c1c8cf0b5ce5d6630bcbcbd6b6fdfe9dc7d87abc5525c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc9651caabf747bca18c1c8cf0b5ce5d6630bcbcbd6b6fdfe9dc7d87abc5525c", kill_on_drop: false }` [INFO] [stdout] fc9651caabf747bca18c1c8cf0b5ce5d6630bcbcbd6b6fdfe9dc7d87abc5525c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5f13051aefbbb6e1d7347597458c637fa96974f86b7cf75d1551166131f08917 [INFO] running `Command { std: "docker" "start" "-a" "5f13051aefbbb6e1d7347597458c637fa96974f86b7cf75d1551166131f08917", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.67 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling futures-sink v0.3.13 [INFO] [stderr] Compiling futures-core v0.3.13 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling futures-channel v0.3.13 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling futures-macro v0.3.13 [INFO] [stderr] Compiling futures-util v0.3.13 [INFO] [stderr] Compiling futures-executor v0.3.13 [INFO] [stderr] Compiling futures v0.3.13 [INFO] [stderr] Compiling exact-cover v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `Aborted` [INFO] [stdout] --> src/solver.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | Aborted(Matrix), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `problem` [INFO] [stdout] --> src/solver.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | problem: Problem, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `thread` [INFO] [stdout] --> src/solver.rs:119:5 [INFO] [stdout] | [INFO] [stdout] 119 | thread: JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `try_recv` [INFO] [stdout] --> src/solver.rs:179:12 [INFO] [stdout] | [INFO] [stdout] 179 | pub fn try_recv(&self) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `join` [INFO] [stdout] --> src/solver.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | pub fn join(self) -> ThreadResult<()> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 31.87s [INFO] running `Command { std: "docker" "inspect" "5f13051aefbbb6e1d7347597458c637fa96974f86b7cf75d1551166131f08917", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5f13051aefbbb6e1d7347597458c637fa96974f86b7cf75d1551166131f08917", kill_on_drop: false }` [INFO] [stdout] 5f13051aefbbb6e1d7347597458c637fa96974f86b7cf75d1551166131f08917 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a6f0ebb3fcbd038560e155ef5ac6af90ce25ae7474692e15c5a043073eca18f6 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a6f0ebb3fcbd038560e155ef5ac6af90ce25ae7474692e15c5a043073eca18f6", kill_on_drop: false }` [INFO] [stderr] Compiling exact-cover v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `Aborted` [INFO] [stdout] --> src/solver.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | Aborted(Matrix), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `problem` [INFO] [stdout] --> src/solver.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | problem: Problem, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `thread` [INFO] [stdout] --> src/solver.rs:119:5 [INFO] [stdout] | [INFO] [stdout] 119 | thread: JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `try_recv` [INFO] [stdout] --> src/solver.rs:179:12 [INFO] [stdout] | [INFO] [stdout] 179 | pub fn try_recv(&self) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `join` [INFO] [stdout] --> src/solver.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | pub fn join(self) -> ThreadResult<()> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/dlx.rs:222:9 [INFO] [stdout] | [INFO] [stdout] 222 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Aborted` [INFO] [stdout] --> src/solver.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | Aborted(Matrix), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `problem` [INFO] [stdout] --> src/solver.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | problem: Problem, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `thread` [INFO] [stdout] --> src/solver.rs:119:5 [INFO] [stdout] | [INFO] [stdout] 119 | thread: JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `try_recv` [INFO] [stdout] --> src/solver.rs:179:12 [INFO] [stdout] | [INFO] [stdout] 179 | pub fn try_recv(&self) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `join` [INFO] [stdout] --> src/solver.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | pub fn join(self) -> ThreadResult<()> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.66s [INFO] running `Command { std: "docker" "inspect" "a6f0ebb3fcbd038560e155ef5ac6af90ce25ae7474692e15c5a043073eca18f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6f0ebb3fcbd038560e155ef5ac6af90ce25ae7474692e15c5a043073eca18f6", kill_on_drop: false }` [INFO] [stdout] a6f0ebb3fcbd038560e155ef5ac6af90ce25ae7474692e15c5a043073eca18f6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0e46cec934f854aaadc689c5f03fa8ffbf7be8805ae68835b3152e1970411663 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0e46cec934f854aaadc689c5f03fa8ffbf7be8805ae68835b3152e1970411663", kill_on_drop: false }` [INFO] [stderr] warning: variant is never constructed: `Aborted` [INFO] [stderr] --> src/solver.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | Aborted(Matrix), [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `problem` [INFO] [stderr] --> src/solver.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | problem: Problem, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `thread` [INFO] [stderr] --> src/solver.rs:119:5 [INFO] [stderr] | [INFO] [stderr] 119 | thread: JoinHandle<()>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `try_recv` [INFO] [stderr] --> src/solver.rs:179:12 [INFO] [stderr] | [INFO] [stderr] 179 | pub fn try_recv(&self) -> Result { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `join` [INFO] [stderr] --> src/solver.rs:187:12 [INFO] [stderr] | [INFO] [stderr] 187 | pub fn join(self) -> ThreadResult<()> { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/dlx.rs:222:9 [INFO] [stderr] | [INFO] [stderr] 222 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `exact-cover` (lib) generated 5 warnings [INFO] [stderr] warning: `exact-cover` (lib test) generated 6 warnings (5 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/exact_cover-74fd598d9262f4e1) [INFO] [stdout] running 3 tests [INFO] [stdout] test dlx::tests::matrix_search_should_solve_exact_cover ... ok [INFO] [stdout] test problem::tests::problem_can_be_created ... ok [INFO] [stderr] Doc-tests exact-cover [INFO] [stdout] test solver::tests::solver_can_solve_problem ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0e46cec934f854aaadc689c5f03fa8ffbf7be8805ae68835b3152e1970411663", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0e46cec934f854aaadc689c5f03fa8ffbf7be8805ae68835b3152e1970411663", kill_on_drop: false }` [INFO] [stdout] 0e46cec934f854aaadc689c5f03fa8ffbf7be8805ae68835b3152e1970411663