[INFO] crate rootfind 0.7.0 is already in cache
[INFO] checking rootfind-0.7.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate rootfind 0.7.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate rootfind 0.7.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rootfind 0.7.0
[INFO] finished tweaking crates.io crate rootfind 0.7.0
[INFO] tweaked toml for crates.io crate rootfind 0.7.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 2624ad5c0249534ae6b596a26abe487f5d5d811e6f5044394face300183b6755
[INFO] running `"docker" "start" "-a" "2624ad5c0249534ae6b596a26abe487f5d5d811e6f5044394face300183b6755"`
[INFO] [stderr]     Checking rootfind v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:326:16
[INFO] [stderr]     |
[INFO] [stderr] 326 |         f: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |         df: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:328:18
[INFO] [stderr]     |
[INFO] [stderr] 328 |         d2f: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> src/solver.rs:751:57
[INFO] [stderr]     |
[INFO] [stderr] 751 |             let f = move |x: f64| x * x - (1. - x).powi(n as i32);
[INFO] [stderr]     |                                                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> src/solver.rs:752:54
[INFO] [stderr]     |
[INFO] [stderr] 752 |             let df = move |x: f64| n * (1. - x).powi((n as i32) - 1) + 2. * x;
[INFO] [stderr]     |                                                      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> src/solver.rs:753:71
[INFO] [stderr]     |
[INFO] [stderr] 753 |             let d2f = move |x: f64| 2. - (n - 1.) * n * (1. - x).powi((n as i32) - 2);
[INFO] [stderr]     |                                                                       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> src/solver.rs:801:70
[INFO] [stderr]     |
[INFO] [stderr] 801 |             let f = move |x: f64| (-n * x).exp() * (x - 1.) + x.powi(n as i32);
[INFO] [stderr]     |                                                                      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> src/solver.rs:802:47
[INFO] [stderr]     |
[INFO] [stderr] 802 |             let df = move |x: f64| n * x.powi((n as i32) - 1) + (-n * x).exp() * (n * -x + n + 1.);
[INFO] [stderr]     |                                               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> src/solver.rs:804:40
[INFO] [stderr]     |
[INFO] [stderr] 804 |                 n * ((n - 1.) * x.powi((n as i32) - 2) + (-n * x).exp() * (n * (x - 1.) - 2.))
[INFO] [stderr]     |                                        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors; 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `rootfind`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2624ad5c0249534ae6b596a26abe487f5d5d811e6f5044394face300183b6755"`
[INFO] running `"docker" "rm" "-f" "2624ad5c0249534ae6b596a26abe487f5d5d811e6f5044394face300183b6755"`
[INFO] [stdout] 2624ad5c0249534ae6b596a26abe487f5d5d811e6f5044394face300183b6755