[INFO] crate discrete 0.2.1 is already in cache
[INFO] checking discrete-0.2.1 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate discrete 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate discrete 0.2.1 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate discrete 0.2.1
[INFO] finished tweaking crates.io crate discrete 0.2.1
[INFO] tweaked toml for crates.io crate discrete 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d239ae65fdac2d264400145aed77268652486c6c30889c8e9bbc3348f12fd120
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d239ae65fdac2d264400145aed77268652486c6c30889c8e9bbc3348f12fd120"`
[INFO] [stderr]     Checking discrete v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `Pair` is imported redundantly
[INFO] [stderr]    --> src/context.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |             use Pair;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 190 |         use Pair;
[INFO] [stderr]     |             ---- the item `Pair` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Pair` is imported redundantly
[INFO] [stderr]    --> src/context.rs:272:17
[INFO] [stderr]     |
[INFO] [stderr] 272 |             use Pair;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 290 |         use Pair;
[INFO] [stderr]     |             ---- the item `Pair` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Pair` is imported redundantly
[INFO] [stderr]    --> src/context.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |             use Pair;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 190 |         use Pair;
[INFO] [stderr]     |             ---- the item `Pair` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Pair` is imported redundantly
[INFO] [stderr]    --> src/context.rs:272:17
[INFO] [stderr]     |
[INFO] [stderr] 272 |             use Pair;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 290 |         use Pair;
[INFO] [stderr]     |             ---- the item `Pair` is already imported here
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]   --> src/pair.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let max = ((-1f64 + (8f64 * index as f64 + 1f64).sqrt()) / 2f64) as usize + 1;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]   --> src/eq_pair.rs:74:19
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let max = ((-1f64 + (8f64 * index as f64 + 1f64).sqrt()) / 2f64) as usize;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `discrete`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]   --> src/pair.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let max = ((-1f64 + (8f64 * index as f64 + 1f64).sqrt()) / 2f64) as usize + 1;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]   --> src/eq_pair.rs:74:19
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let max = ((-1f64 + (8f64 * index as f64 + 1f64).sqrt()) / 2f64) as usize;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `discrete`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d239ae65fdac2d264400145aed77268652486c6c30889c8e9bbc3348f12fd120"`
[INFO] running `"docker" "rm" "-f" "d239ae65fdac2d264400145aed77268652486c6c30889c8e9bbc3348f12fd120"`
[INFO] [stdout] d239ae65fdac2d264400145aed77268652486c6c30889c8e9bbc3348f12fd120