[INFO] cloning repository https://github.com/dgryski/numerical-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dgryski/numerical-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgryski%2Fnumerical-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgryski%2Fnumerical-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c95217e6e1e2ca1af7fd50661323f99d20c21070
[INFO] testing dgryski/numerical-rs against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgryski%2Fnumerical-rs" "/workspace/builds/worker-79/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-79/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dgryski/numerical-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/dgryski/numerical-rs
[INFO] finished tweaking git repo https://github.com/dgryski/numerical-rs
[INFO] tweaked toml for git repo https://github.com/dgryski/numerical-rs written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] crate git repo https://github.com/dgryski/numerical-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-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] 3620ac7d0f7ba7acf51ec2ccd54e06a25f14beab7a273c9acbb2d4bb0eca25cc
[INFO] running `Command { std: "docker" "start" "-a" "3620ac7d0f7ba7acf51ec2ccd54e06a25f14beab7a273c9acbb2d4bb0eca25cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3620ac7d0f7ba7acf51ec2ccd54e06a25f14beab7a273c9acbb2d4bb0eca25cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3620ac7d0f7ba7acf51ec2ccd54e06a25f14beab7a273c9acbb2d4bb0eca25cc", kill_on_drop: false }`
[INFO] [stdout] 3620ac7d0f7ba7acf51ec2ccd54e06a25f14beab7a273c9acbb2d4bb0eca25cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] [stdout] fb91b6e46426b37f8097e212fb4f3d764772cea4d1576d3e6ffa9ec7acb064e7
[INFO] running `Command { std: "docker" "start" "-a" "fb91b6e46426b37f8097e212fb4f3d764772cea4d1576d3e6ffa9ec7acb064e7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling numerical-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `xOld` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut xOld = 0.0;
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `x_old`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "fb91b6e46426b37f8097e212fb4f3d764772cea4d1576d3e6ffa9ec7acb064e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb91b6e46426b37f8097e212fb4f3d764772cea4d1576d3e6ffa9ec7acb064e7", kill_on_drop: false }`
[INFO] [stdout] fb91b6e46426b37f8097e212fb4f3d764772cea4d1576d3e6ffa9ec7acb064e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] 67b310408c629917c2a7c4f1f7a5efae670f668f85c3eca147492a2ece521897
[INFO] running `Command { std: "docker" "start" "-a" "67b310408c629917c2a7c4f1f7a5efae670f668f85c3eca147492a2ece521897", kill_on_drop: false }`
[INFO] [stdout] warning: variable `xOld` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut xOld = 0.0;
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `x_old`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling numerical-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `xOld` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut xOld = 0.0;
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `x_old`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "67b310408c629917c2a7c4f1f7a5efae670f668f85c3eca147492a2ece521897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b310408c629917c2a7c4f1f7a5efae670f668f85c3eca147492a2ece521897", kill_on_drop: false }`
[INFO] [stdout] 67b310408c629917c2a7c4f1f7a5efae670f668f85c3eca147492a2ece521897
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] f2041f721d2c3a97a4cef7eb0cbc5725efd5fe4e917e34d567067617d5819053
[INFO] running `Command { std: "docker" "start" "-a" "f2041f721d2c3a97a4cef7eb0cbc5725efd5fe4e917e34d567067617d5819053", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable `xOld` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |     let mut xOld = 0.0;
[INFO] [stderr]     |             ^^^^ help: convert the identifier to snake case: `x_old`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `numerical-rs` (lib) generated 1 warning
[INFO] [stderr] warning: `numerical-rs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/numerical_rs-293c141661822025)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::runall_roots ... ok
[INFO] [stdout] test tests::runall_integrate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests numerical-rs
[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" "f2041f721d2c3a97a4cef7eb0cbc5725efd5fe4e917e34d567067617d5819053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2041f721d2c3a97a4cef7eb0cbc5725efd5fe4e917e34d567067617d5819053", kill_on_drop: false }`
[INFO] [stdout] f2041f721d2c3a97a4cef7eb0cbc5725efd5fe4e917e34d567067617d5819053