[INFO] updating cached repository https://github.com/srenevey/ode-solvers
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d98221d16ccb425d60be6d113d980cfe53290341
[INFO] testing srenevey/ode-solvers against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsrenevey%2Fode-solvers" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/srenevey/ode-solvers on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/srenevey/ode-solvers
[INFO] finished tweaking git repo https://github.com/srenevey/ode-solvers
[INFO] tweaked toml for git repo https://github.com/srenevey/ode-solvers written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/srenevey/ode-solvers already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] b427c673ae28665ed1cb0d1c1f2672fd89e4afef3c143cba7e450760b93e7857
[INFO] running `"docker" "start" "-a" "b427c673ae28665ed1cb0d1c1f2672fd89e4afef3c143cba7e450760b93e7857"`
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling alga v0.8.2
[INFO] [stderr]    Compiling nalgebra v0.17.3
[INFO] [stderr]    Compiling ode_solvers v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `num_stages`
[INFO] [stderr]    --> src/butcher_tableau.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     num_stages: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `num_stages`
[INFO] [stderr]    --> src/butcher_tableau.rs:418:5
[INFO] [stderr]     |
[INFO] [stderr] 418 |     pub fn num_stages(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `order`
[INFO] [stderr]    --> src/butcher_tableau.rs:423:5
[INFO] [stderr]     |
[INFO] [stderr] 423 |     pub fn order(&self) -> i32 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.35s
[INFO] running `"docker" "inspect" "b427c673ae28665ed1cb0d1c1f2672fd89e4afef3c143cba7e450760b93e7857"`
[INFO] running `"docker" "rm" "-f" "b427c673ae28665ed1cb0d1c1f2672fd89e4afef3c143cba7e450760b93e7857"`
[INFO] [stdout] b427c673ae28665ed1cb0d1c1f2672fd89e4afef3c143cba7e450760b93e7857
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 21dfc161b55c7436391dd00b0b9019097815e4dae7427949a8ecb40ed208ce38
[INFO] running `"docker" "start" "-a" "21dfc161b55c7436391dd00b0b9019097815e4dae7427949a8ecb40ed208ce38"`
[INFO] [stderr]    Compiling ode_solvers v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `num_stages`
[INFO] [stderr]    --> src/butcher_tableau.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     num_stages: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `num_stages`
[INFO] [stderr]    --> src/butcher_tableau.rs:418:5
[INFO] [stderr]     |
[INFO] [stderr] 418 |     pub fn num_stages(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `order`
[INFO] [stderr]    --> src/butcher_tableau.rs:423:5
[INFO] [stderr]     |
[INFO] [stderr] 423 |     pub fn order(&self) -> i32 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "21dfc161b55c7436391dd00b0b9019097815e4dae7427949a8ecb40ed208ce38"`
[INFO] running `"docker" "rm" "-f" "21dfc161b55c7436391dd00b0b9019097815e4dae7427949a8ecb40ed208ce38"`
[INFO] [stdout] 21dfc161b55c7436391dd00b0b9019097815e4dae7427949a8ecb40ed208ce38
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 533c875f107c7a982f73e0e489d016fa284e5df7724ffcac012cd54fe92a8252
[INFO] running `"docker" "start" "-a" "533c875f107c7a982f73e0e489d016fa284e5df7724ffcac012cd54fe92a8252"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ode_solvers-d7ea1051b3ae3cdc
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test butcher_tableau::tests::dopri5_e ... ok
[INFO] [stdout] test butcher_tableau::tests::dopri853_a ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ode_solvers
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "533c875f107c7a982f73e0e489d016fa284e5df7724ffcac012cd54fe92a8252"`
[INFO] running `"docker" "rm" "-f" "533c875f107c7a982f73e0e489d016fa284e5df7724ffcac012cd54fe92a8252"`
[INFO] [stdout] 533c875f107c7a982f73e0e489d016fa284e5df7724ffcac012cd54fe92a8252