[INFO] cloning repository https://github.com/bonor-ayambem/parallel-gaussian-implementation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bonor-ayambem/parallel-gaussian-implementation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbonor-ayambem%2Fparallel-gaussian-implementation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbonor-ayambem%2Fparallel-gaussian-implementation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1f2ca5630b6a7caa9fd6d638f71273de48095f2
[INFO] checking bonor-ayambem/parallel-gaussian-implementation against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbonor-ayambem%2Fparallel-gaussian-implementation" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bonor-ayambem/parallel-gaussian-implementation 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/bonor-ayambem/parallel-gaussian-implementation
[INFO] finished tweaking git repo https://github.com/bonor-ayambem/parallel-gaussian-implementation
[INFO] tweaked toml for git repo https://github.com/bonor-ayambem/parallel-gaussian-implementation written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bonor-ayambem/parallel-gaussian-implementation 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]     Blocking waiting for file lock on package cache
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6518d1acc4c95ab39b710483647f38bdf312b4b08a0b77bb180554323b3afc2a
[INFO] running `Command { std: "docker" "start" "-a" "6518d1acc4c95ab39b710483647f38bdf312b4b08a0b77bb180554323b3afc2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6518d1acc4c95ab39b710483647f38bdf312b4b08a0b77bb180554323b3afc2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6518d1acc4c95ab39b710483647f38bdf312b4b08a0b77bb180554323b3afc2a", kill_on_drop: false }`
[INFO] [stdout] 6518d1acc4c95ab39b710483647f38bdf312b4b08a0b77bb180554323b3afc2a
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05f511dcbe69822437c3598b8596e1ca9685812b88292ab6a47adc3ffaef2add
[INFO] running `Command { std: "docker" "start" "-a" "05f511dcbe69822437c3598b8596e1ca9685812b88292ab6a47adc3ffaef2add", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking homework-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `pivot_index` is never read
[INFO] [stdout]   --> src/par_gauss2.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut pivot_index = pivot_row;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pivot_index` is never read
[INFO] [stdout]   --> src/par_gauss2.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut pivot_index = pivot_row;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` 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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.03s
[INFO] running `Command { std: "docker" "inspect" "05f511dcbe69822437c3598b8596e1ca9685812b88292ab6a47adc3ffaef2add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f511dcbe69822437c3598b8596e1ca9685812b88292ab6a47adc3ffaef2add", kill_on_drop: false }`
[INFO] [stdout] 05f511dcbe69822437c3598b8596e1ca9685812b88292ab6a47adc3ffaef2add
[INFO] checking bonor-ayambem/parallel-gaussian-implementation against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbonor-ayambem%2Fparallel-gaussian-implementation" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bonor-ayambem/parallel-gaussian-implementation 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/bonor-ayambem/parallel-gaussian-implementation
[INFO] finished tweaking git repo https://github.com/bonor-ayambem/parallel-gaussian-implementation
[INFO] tweaked toml for git repo https://github.com/bonor-ayambem/parallel-gaussian-implementation written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bonor-ayambem/parallel-gaussian-implementation 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7780836fb4e712d9fd3756b59273aac07c99a2663c066738c7b42d49e2a38d4c
[INFO] running `Command { std: "docker" "start" "-a" "7780836fb4e712d9fd3756b59273aac07c99a2663c066738c7b42d49e2a38d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7780836fb4e712d9fd3756b59273aac07c99a2663c066738c7b42d49e2a38d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7780836fb4e712d9fd3756b59273aac07c99a2663c066738c7b42d49e2a38d4c", kill_on_drop: false }`
[INFO] [stdout] 7780836fb4e712d9fd3756b59273aac07c99a2663c066738c7b42d49e2a38d4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 46b17d310eb139c0e83246ce8f819b695bfcedb75172296611c310b91feddb05
[INFO] running `Command { std: "docker" "start" "-a" "46b17d310eb139c0e83246ce8f819b695bfcedb75172296611c310b91feddb05", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking homework-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `pivot_index` is never read
[INFO] [stdout]   --> src/par_gauss2.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut pivot_index = pivot_row;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pivot_index` is never read
[INFO] [stdout]   --> src/par_gauss2.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut pivot_index = pivot_row;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` 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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.18s
[INFO] running `Command { std: "docker" "inspect" "46b17d310eb139c0e83246ce8f819b695bfcedb75172296611c310b91feddb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46b17d310eb139c0e83246ce8f819b695bfcedb75172296611c310b91feddb05", kill_on_drop: false }`
[INFO] [stdout] 46b17d310eb139c0e83246ce8f819b695bfcedb75172296611c310b91feddb05