Dec 19 15:27:07.439 INFO checking jakobbeckmann/chans_algorithm against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 15:27:07.439 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/jakobbeckmann/chans_algorithm:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:27:07.916 INFO [stdout] 2244b23eee5aadbd170cd5ebd1b0d15afac740cec908b91c449fd2154a1ee868
Dec 19 15:27:07.918 INFO running `"docker" "start" "-a" "2244b23eee5aadbd170cd5ebd1b0d15afac740cec908b91c449fd2154a1ee868"`
Dec 19 15:27:09.344 INFO [stderr]    Compiling cc v1.0.2
Dec 19 15:27:09.352 INFO [stderr]     Checking memchr v1.0.2
Dec 19 15:27:09.368 INFO [stderr]     Checking ordered-float v0.5.0
Dec 19 15:27:09.368 INFO [stderr]     Checking serde_yaml v0.7.1
Dec 19 15:27:09.368 INFO [stderr]     Checking chrono v0.3.0
Dec 19 15:27:10.060 INFO [stderr]     Checking csv-core v0.1.3
Dec 19 15:27:10.188 INFO [stderr]     Checking serde-value v0.5.1
Dec 19 15:27:12.144 INFO [stderr]     Checking csv v1.0.0-beta.5
Dec 19 15:27:14.872 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 19 15:27:17.384 INFO [stderr]     Checking flate2 v0.2.20
Dec 19 15:27:18.495 INFO [stderr]     Checking log4rs v0.7.0
Dec 19 15:27:20.912 INFO [stderr]     Checking chan v0.1.0 (/opt/crater/workdir)
Dec 19 15:27:21.928 INFO [stderr] warning: unused import: `super::*`
Dec 19 15:27:21.928 INFO [stderr]    --> src/util/chan.rs:147:9
Dec 19 15:27:21.928 INFO [stderr]     |
Dec 19 15:27:21.928 INFO [stderr] 147 |     use super::*;
Dec 19 15:27:21.928 INFO [stderr]     |         ^^^^^^^^
Dec 19 15:27:21.928 INFO [stderr]     |
Dec 19 15:27:21.928 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 19 15:27:21.928 INFO [stderr] 
Dec 19 15:27:22.096 INFO [stderr] warning: unused variable: `idx`
Dec 19 15:27:22.096 INFO [stderr]   --> src/util/chan.rs:30:9
Dec 19 15:27:22.096 INFO [stderr]    |
Dec 19 15:27:22.096 INFO [stderr] 30 |     for idx in 0..parallelism {
Dec 19 15:27:22.096 INFO [stderr]    |         ^^^ help: consider using `_idx` instead
Dec 19 15:27:22.096 INFO [stderr]    |
Dec 19 15:27:22.096 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:27:22.096 INFO [stderr] 
Dec 19 15:27:22.144 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 15:27:22.144 INFO [stderr]   --> src/io.rs:74:5
Dec 19 15:27:22.144 INFO [stderr]    |
Dec 19 15:27:22.144 INFO [stderr] 74 |     writeln!(file, "{},{}", "x value", "y value");
Dec 19 15:27:22.144 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:27:22.144 INFO [stderr]    |
Dec 19 15:27:22.144 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 15:27:22.144 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 15:27:22.144 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 15:27:22.144 INFO [stderr] 
Dec 19 15:27:22.144 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 15:27:22.144 INFO [stderr]   --> src/io.rs:84:13
Dec 19 15:27:22.144 INFO [stderr]    |
Dec 19 15:27:22.144 INFO [stderr] 84 |             writeln!(file, "{},{}", x, y);
Dec 19 15:27:22.145 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:27:22.145 INFO [stderr]    |
Dec 19 15:27:22.145 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 15:27:22.145 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 15:27:22.145 INFO [stderr] 
Dec 19 15:27:22.145 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 15:27:22.145 INFO [stderr]   --> src/io.rs:98:5
Dec 19 15:27:22.145 INFO [stderr]    |
Dec 19 15:27:22.145 INFO [stderr] 98 |     writeln!(file, "{},{}", "x value", "y value");
Dec 19 15:27:22.145 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:27:22.145 INFO [stderr]    |
Dec 19 15:27:22.145 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 15:27:22.145 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 15:27:22.145 INFO [stderr] 
Dec 19 15:27:22.145 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 15:27:22.145 INFO [stderr]    --> src/io.rs:100:9
Dec 19 15:27:22.145 INFO [stderr]     |
Dec 19 15:27:22.145 INFO [stderr] 100 |         writeln!(file, "{},{}", point.x, point.y);
Dec 19 15:27:22.145 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:27:22.145 INFO [stderr]     |
Dec 19 15:27:22.145 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 15:27:22.145 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 15:27:22.145 INFO [stderr] 
Dec 19 15:27:22.261 INFO [stderr] warning: unused variable: `idx`
Dec 19 15:27:22.261 INFO [stderr]   --> src/util/chan.rs:30:9
Dec 19 15:27:22.261 INFO [stderr]    |
Dec 19 15:27:22.261 INFO [stderr] 30 |     for idx in 0..parallelism {
Dec 19 15:27:22.261 INFO [stderr]    |         ^^^ help: consider using `_idx` instead
Dec 19 15:27:22.261 INFO [stderr]    |
Dec 19 15:27:22.261 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:27:22.261 INFO [stderr] 
Dec 19 15:27:22.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 15:27:22.320 INFO [stderr]   --> src/io.rs:74:5
Dec 19 15:27:22.320 INFO [stderr]    |
Dec 19 15:27:22.320 INFO [stderr] 74 |     writeln!(file, "{},{}", "x value", "y value");
Dec 19 15:27:22.320 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:27:22.320 INFO [stderr]    |
Dec 19 15:27:22.320 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 15:27:22.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 15:27:22.320 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 15:27:22.320 INFO [stderr] 
Dec 19 15:27:22.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 15:27:22.320 INFO [stderr]   --> src/io.rs:84:13
Dec 19 15:27:22.320 INFO [stderr]    |
Dec 19 15:27:22.320 INFO [stderr] 84 |             writeln!(file, "{},{}", x, y);
Dec 19 15:27:22.320 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:27:22.320 INFO [stderr]    |
Dec 19 15:27:22.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 15:27:22.320 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 15:27:22.320 INFO [stderr] 
Dec 19 15:27:22.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 15:27:22.320 INFO [stderr]   --> src/io.rs:98:5
Dec 19 15:27:22.320 INFO [stderr]    |
Dec 19 15:27:22.320 INFO [stderr] 98 |     writeln!(file, "{},{}", "x value", "y value");
Dec 19 15:27:22.320 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:27:22.320 INFO [stderr]    |
Dec 19 15:27:22.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 15:27:22.320 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 15:27:22.320 INFO [stderr] 
Dec 19 15:27:22.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 15:27:22.320 INFO [stderr]    --> src/io.rs:100:9
Dec 19 15:27:22.320 INFO [stderr]     |
Dec 19 15:27:22.320 INFO [stderr] 100 |         writeln!(file, "{},{}", point.x, point.y);
Dec 19 15:27:22.320 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:27:22.320 INFO [stderr]     |
Dec 19 15:27:22.320 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 15:27:22.320 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 15:27:22.320 INFO [stderr] 
Dec 19 15:27:23.140 INFO [stderr] warning: value assigned to `hull` is never read
Dec 19 15:27:23.140 INFO [stderr]   --> src/main.rs:36:13
Dec 19 15:27:23.140 INFO [stderr]    |
Dec 19 15:27:23.140 INFO [stderr] 36 |     let mut hull: Vec<Point> = Vec::with_capacity(1_000_000);   // TODO: this could be made smaller maybe
Dec 19 15:27:23.140 INFO [stderr]    |             ^^^^
Dec 19 15:27:23.140 INFO [stderr]    |
Dec 19 15:27:23.140 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 15:27:23.140 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 15:27:23.140 INFO [stderr] 
Dec 19 15:27:23.400 INFO [stderr] warning: value assigned to `hull` is never read
Dec 19 15:27:23.400 INFO [stderr]   --> src/main.rs:36:13
Dec 19 15:27:23.400 INFO [stderr]    |
Dec 19 15:27:23.401 INFO [stderr] 36 |     let mut hull: Vec<Point> = Vec::with_capacity(1_000_000);   // TODO: this could be made smaller maybe
Dec 19 15:27:23.401 INFO [stderr]    |             ^^^^
Dec 19 15:27:23.401 INFO [stderr]    |
Dec 19 15:27:23.401 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 15:27:23.401 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 15:27:23.401 INFO [stderr] 
Dec 19 15:27:23.436 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.20s
Dec 19 15:27:24.328 INFO running `"docker" "inspect" "2244b23eee5aadbd170cd5ebd1b0d15afac740cec908b91c449fd2154a1ee868"`
Dec 19 15:27:24.574 INFO running `"docker" "rm" "-f" "2244b23eee5aadbd170cd5ebd1b0d15afac740cec908b91c449fd2154a1ee868"`
Dec 19 15:27:24.837 INFO [stdout] 2244b23eee5aadbd170cd5ebd1b0d15afac740cec908b91c449fd2154a1ee868