Dec 19 05:01:44.400 INFO checking yishn/Kalk against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 05:01:44.400 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/yishn/Kalk:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:01:44.777 INFO [stdout] d679552281064c5923f87ff454da98e0e5d8765da684c2f7dd8096e67e27733e
Dec 19 05:01:44.782 INFO running `"docker" "start" "-a" "d679552281064c5923f87ff454da98e0e5d8765da684c2f7dd8096e67e27733e"`
Dec 19 05:01:46.672 INFO [stderr]    Compiling pest v1.0.6
Dec 19 05:01:46.676 INFO [stderr]    Compiling syn v0.11.11
Dec 19 05:01:53.904 INFO [stderr]    Compiling pest_derive v1.0.7
Dec 19 05:02:00.269 INFO [stderr]     Checking kalk v0.1.0 (/opt/crater/workdir)
Dec 19 05:02:01.636 INFO [stderr] warning: method is never used: `new_finite`
Dec 19 05:02:01.636 INFO [stderr]    --> src/types.rs:208:5
Dec 19 05:02:01.637 INFO [stderr]     |
Dec 19 05:02:01.637 INFO [stderr] 208 |     fn new_finite(start: f64, step: f64, stop: f64) -> ArithmeticProgression {
Dec 19 05:02:01.637 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:02:01.637 INFO [stderr]     |
Dec 19 05:02:01.638 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 05:02:01.638 INFO [stderr] 
Dec 19 05:02:01.638 INFO [stderr] warning: method is never used: `new_infinite`
Dec 19 05:02:01.638 INFO [stderr]    --> src/types.rs:212:5
Dec 19 05:02:01.639 INFO [stderr]     |
Dec 19 05:02:01.639 INFO [stderr] 212 |     fn new_infinite(start: f64, step: f64) -> ArithmeticProgression {
Dec 19 05:02:01.639 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:02:01.639 INFO [stderr] 
Dec 19 05:02:01.728 INFO [stderr] warning: method is never used: `new_finite`
Dec 19 05:02:01.728 INFO [stderr]    --> src/types.rs:208:5
Dec 19 05:02:01.728 INFO [stderr]     |
Dec 19 05:02:01.728 INFO [stderr] 208 |     fn new_finite(start: f64, step: f64, stop: f64) -> ArithmeticProgression {
Dec 19 05:02:01.729 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:02:01.729 INFO [stderr]     |
Dec 19 05:02:01.729 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 05:02:01.729 INFO [stderr] 
Dec 19 05:02:01.730 INFO [stderr] warning: method is never used: `new_infinite`
Dec 19 05:02:01.730 INFO [stderr]    --> src/types.rs:212:5
Dec 19 05:02:01.730 INFO [stderr]     |
Dec 19 05:02:01.731 INFO [stderr] 212 |     fn new_infinite(start: f64, step: f64) -> ArithmeticProgression {
Dec 19 05:02:01.731 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:02:01.731 INFO [stderr] 
Dec 19 05:02:01.794 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.18s
Dec 19 05:02:02.764 INFO running `"docker" "inspect" "d679552281064c5923f87ff454da98e0e5d8765da684c2f7dd8096e67e27733e"`
Dec 19 05:02:03.094 INFO running `"docker" "rm" "-f" "d679552281064c5923f87ff454da98e0e5d8765da684c2f7dd8096e67e27733e"`
Dec 19 05:02:03.442 INFO [stdout] d679552281064c5923f87ff454da98e0e5d8765da684c2f7dd8096e67e27733e