[INFO] cloning repository https://github.com/AnInsaneJimJam/linear_regression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnInsaneJimJam/linear_regression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnInsaneJimJam%2Flinear_regression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnInsaneJimJam%2Flinear_regression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 166f37dcf87d75aab7becdd880f1a372b89cbb1c
[INFO] checking AnInsaneJimJam/linear_regression against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnInsaneJimJam%2Flinear_regression" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AnInsaneJimJam/linear_regression
[INFO] finished tweaking git repo https://github.com/AnInsaneJimJam/linear_regression
[INFO] tweaked toml for git repo https://github.com/AnInsaneJimJam/linear_regression written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AnInsaneJimJam/linear_regression on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AnInsaneJimJam/linear_regression 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 138d0c9a93ec34a89e4f5a847b84671092b6c746a023d08ea8c127a74ebc90a9
[INFO] running `Command { std: "docker" "start" "-a" "138d0c9a93ec34a89e4f5a847b84671092b6c746a023d08ea8c127a74ebc90a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "138d0c9a93ec34a89e4f5a847b84671092b6c746a023d08ea8c127a74ebc90a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "138d0c9a93ec34a89e4f5a847b84671092b6c746a023d08ea8c127a74ebc90a9", kill_on_drop: false }`
[INFO] [stdout] 138d0c9a93ec34a89e4f5a847b84671092b6c746a023d08ea8c127a74ebc90a9
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be4e5a53e8ae284e23b0cc1d216b4528a1159234a53feb5d76bd2774cac63757
[INFO] running `Command { std: "docker" "start" "-a" "be4e5a53e8ae284e23b0cc1d216b4528a1159234a53feb5d76bd2774cac63757", kill_on_drop: false }`
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]     Checking winter-utils v0.12.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling cc v1.2.25
[INFO] [stderr]     Checking arrayref v0.3.9
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking winter-math v0.12.0
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]     Checking winter-crypto v0.12.0
[INFO] [stderr]     Checking winter-fri v0.12.2
[INFO] [stderr]     Checking winter-air v0.12.3
[INFO] [stderr]     Checking winter-verifier v0.12.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling winter-maybe-async v0.12.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking winter-prover v0.12.3
[INFO] [stderr]     Checking winterfell v0.12.0
[INFO] [stderr]     Checking linear_regression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ConstraintEvaluator` and `TraceLde`
[INFO] [stdout]  --> src/main.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 |     TracePolyTable, ConstraintEvaluator, TraceLde, ConstraintCompositionCoefficients,
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ConstraintEvaluator` and `TraceLde`
[INFO] [stdout]  --> src/main.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 |     TracePolyTable, ConstraintEvaluator, TraceLde, ConstraintCompositionCoefficients,
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:203:17
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut i = 0;
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut i = 0;
[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: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:203:17
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut i = 0;
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut i = 0;
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.69s
[INFO] running `Command { std: "docker" "inspect" "be4e5a53e8ae284e23b0cc1d216b4528a1159234a53feb5d76bd2774cac63757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be4e5a53e8ae284e23b0cc1d216b4528a1159234a53feb5d76bd2774cac63757", kill_on_drop: false }`
[INFO] [stdout] be4e5a53e8ae284e23b0cc1d216b4528a1159234a53feb5d76bd2774cac63757
