[INFO] fetching crate ratio-markov 0.3.2...
[INFO] checking ratio-markov-0.3.2 against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] extracting crate ratio-markov 0.3.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ratio-markov 0.3.2 on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ratio-markov 0.3.2
[INFO] finished tweaking crates.io crate ratio-markov 0.3.2
[INFO] tweaked toml for crates.io crate ratio-markov 0.3.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding nalgebra v0.31.4 (latest: v0.33.0)
[INFO] [stderr]       Adding nalgebra-macros v0.1.0 (latest: v0.2.2)
[INFO] [stderr]       Adding simba v0.7.3 (latest: v0.9.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.72)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20893ae6d864fe0dc4eee780dba5a284554a4abe17376585573d13d932ac6d00
[INFO] running `Command { std: "docker" "start" "-a" "20893ae6d864fe0dc4eee780dba5a284554a4abe17376585573d13d932ac6d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20893ae6d864fe0dc4eee780dba5a284554a4abe17376585573d13d932ac6d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20893ae6d864fe0dc4eee780dba5a284554a4abe17376585573d13d932ac6d00", kill_on_drop: false }`
[INFO] [stdout] 20893ae6d864fe0dc4eee780dba5a284554a4abe17376585573d13d932ac6d00
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1c98d6eae36b0a216df8f0aa26fa6dc5e221a1e729470a45628a6dc971b3225
[INFO] running `Command { std: "docker" "start" "-a" "a1c98d6eae36b0a216df8f0aa26fa6dc5e221a1e729470a45628a6dc971b3225", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking nalgebra v0.31.4
[INFO] [stderr]     Checking ratio-markov v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/utils.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 |                 degrees[(j)] = degrees[(j)] + 1;
[INFO] [stdout]    |                         ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -                 degrees[(j)] = degrees[(j)] + 1;
[INFO] [stdout] 13 +                 degrees[j] = degrees[(j)] + 1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/utils.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |                 degrees[(j)] = degrees[(j)] + 1;
[INFO] [stdout]    |                                        ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -                 degrees[(j)] = degrees[(j)] + 1;
[INFO] [stdout] 13 +                 degrees[(j)] = degrees[j] + 1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/utils.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 |                 degrees[(j)] = degrees[(j)] + 1;
[INFO] [stdout]    |                         ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -                 degrees[(j)] = degrees[(j)] + 1;
[INFO] [stdout] 13 +                 degrees[j] = degrees[(j)] + 1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/utils.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |                 degrees[(j)] = degrees[(j)] + 1;
[INFO] [stdout]    |                                        ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -                 degrees[(j)] = degrees[(j)] + 1;
[INFO] [stdout] 13 +                 degrees[(j)] = degrees[j] + 1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.64s
[INFO] running `Command { std: "docker" "inspect" "a1c98d6eae36b0a216df8f0aa26fa6dc5e221a1e729470a45628a6dc971b3225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1c98d6eae36b0a216df8f0aa26fa6dc5e221a1e729470a45628a6dc971b3225", kill_on_drop: false }`
[INFO] [stdout] a1c98d6eae36b0a216df8f0aa26fa6dc5e221a1e729470a45628a6dc971b3225