[INFO] crate peroxide 0.19.3 is already in cache
[INFO] checking peroxide-0.19.3 against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] extracting crate peroxide 0.19.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate peroxide 0.19.3 on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate peroxide 0.19.3
[INFO] finished tweaking crates.io crate peroxide 0.19.3
[INFO] tweaked toml for crates.io crate peroxide 0.19.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate peroxide 0.19.3 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ef9d1c64cac15972495787292c835083e685ff5a47f47db7429c59afd52edbf5
[INFO] running `"docker" "start" "-a" "ef9d1c64cac15972495787292c835083e685ff5a47f47db7429c59afd52edbf5"`
[INFO] [stderr]    Compiling peroxide v0.19.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr] warning: unused variable: `nu`
[INFO] [stderr]    --> src/statistics/dist.rs:390:22
[INFO] [stderr]     |
[INFO] [stderr] 390 |             StudentT(nu) => 0f64,
[INFO] [stderr]     |                      ^^ help: consider prefixing with an underscore: `_nu`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nu`
[INFO] [stderr]    --> src/statistics/dist.rs:390:22
[INFO] [stderr]     |
[INFO] [stderr] 390 |             StudentT(nu) => 0f64,
[INFO] [stderr]     |                      ^^ help: consider prefixing with an underscore: `_nu`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `results`
[INFO] [stderr]   --> examples/ode_test_lorenz.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let results = ex_test.integrate();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_results`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `results2`
[INFO] [stderr]   --> examples/ode_test_lorenz.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let results2 = ex_test2.integrate();
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_results2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> examples/ode_test_rk4.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let result = ode_solver.integrate();
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> examples/ode_gl4.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let x = result.col(0);
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> examples/ode_gl4.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let y = result.col(1);
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::remove_file`
[INFO] [stderr]  --> tests/data_frame.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::remove_file;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.93s
[INFO] running `"docker" "inspect" "ef9d1c64cac15972495787292c835083e685ff5a47f47db7429c59afd52edbf5"`
[INFO] running `"docker" "rm" "-f" "ef9d1c64cac15972495787292c835083e685ff5a47f47db7429c59afd52edbf5"`
[INFO] [stdout] ef9d1c64cac15972495787292c835083e685ff5a47f47db7429c59afd52edbf5