[INFO] cloning repository https://github.com/randomfunction/Nabla
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/randomfunction/Nabla" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomfunction%2FNabla", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomfunction%2FNabla'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 563637e6922f86db181e91e324e1fae308d4350c
[INFO] checking randomfunction/Nabla against try#8c500c7cefd54fd11d57295f3771d576be9ee415 for pr-145113
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomfunction%2FNabla" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/randomfunction/Nabla
[INFO] finished tweaking git repo https://github.com/randomfunction/Nabla
[INFO] tweaked toml for git repo https://github.com/randomfunction/Nabla written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/randomfunction/Nabla on toolchain 8c500c7cefd54fd11d57295f3771d576be9ee415
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/randomfunction/Nabla 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" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08aa05f0f794d361833d58eca69a29e231af4fa4a637fba5c2b211808c2e59bc
[INFO] running `Command { std: "docker" "start" "-a" "08aa05f0f794d361833d58eca69a29e231af4fa4a637fba5c2b211808c2e59bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08aa05f0f794d361833d58eca69a29e231af4fa4a637fba5c2b211808c2e59bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08aa05f0f794d361833d58eca69a29e231af4fa4a637fba5c2b211808c2e59bc", kill_on_drop: false }`
[INFO] [stdout] 08aa05f0f794d361833d58eca69a29e231af4fa4a637fba5c2b211808c2e59bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9079e18d72be5163141a063b36b409c89ca49dbeee347e4478f6bef5c1506e87
[INFO] running `Command { std: "docker" "start" "-a" "9079e18d72be5163141a063b36b409c89ca49dbeee347e4478f6bef5c1506e87", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking cblas-sys v0.1.4
[INFO] [stderr]     Checking lapack-sys v0.14.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking cauchy v0.4.0
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling katexit v0.1.5
[INFO] [stderr]     Checking lax v0.16.0
[INFO] [stderr]     Checking ndarray-linalg v0.16.0
[INFO] [stderr]     Checking Learn_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/linear_regression.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut x_aug: Vec<Vec<f64>> = self
[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/linear_regression.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut x_aug: Vec<Vec<f64>> = self
[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 18.21s
[INFO] running `Command { std: "docker" "inspect" "9079e18d72be5163141a063b36b409c89ca49dbeee347e4478f6bef5c1506e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9079e18d72be5163141a063b36b409c89ca49dbeee347e4478f6bef5c1506e87", kill_on_drop: false }`
[INFO] [stdout] 9079e18d72be5163141a063b36b409c89ca49dbeee347e4478f6bef5c1506e87