[INFO] cloning repository anthdm/avalanche
[INFO] running `"git" "clone" "--bare" "git://github.com/anthdm/avalanche.git" "work/cache/sources/gh/anthdm/avalanche"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/anthdm/avalanche'...
[INFO] running `"git" "clone" "work/cache/sources/gh/anthdm/avalanche" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/anthdm/avalanche"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/anthdm/avalanche'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/anthdm/avalanche" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/anthdm/avalanche"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/anthdm/avalanche'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ab7656cd7f137c214177ae888c986eab80a8a3b8
[INFO] sha for GitHub repo anthdm/avalanche: ab7656cd7f137c214177ae888c986eab80a8a3b8
[INFO] validating manifest of anthdm/avalanche on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of anthdm/avalanche on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing anthdm/avalanche
[INFO] finished frobbing anthdm/avalanche
[INFO] frobbed toml for anthdm/avalanche written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/anthdm/avalanche/Cargo.toml
[INFO] started frobbing anthdm/avalanche
[INFO] finished frobbing anthdm/avalanche
[INFO] frobbed toml for anthdm/avalanche written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/anthdm/avalanche/Cargo.toml
[INFO] crate anthdm/avalanche has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking anthdm/avalanche against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-6/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/anthdm/avalanche:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 89b9ce0d0b850c0714c03da2d84980104eecc87eede73d5b9c82ab1e1f045fb4
[INFO] running `"docker" "start" "-a" "89b9ce0d0b850c0714c03da2d84980104eecc87eede73d5b9c82ab1e1f045fb4"`
[INFO] [stderr]     Checking ring v0.13.2
[INFO] [stderr]     Checking avalanche v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
[INFO] [stderr]  --> src/main.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rand::{sample, thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         thread::sleep_ms(500); // cpu ded
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
[INFO] [stderr]    --> src/main.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     sample(&mut thread_rng(), ids, n)
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
[INFO] [stderr]  --> src/main.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rand::{sample, thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         thread::sleep_ms(500); // cpu ded
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
[INFO] [stderr]    --> src/main.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     sample(&mut thread_rng(), ids, n)
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]    --> src/main.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 | /                     sampled
[INFO] [stderr] 144 | |                         .iter()
[INFO] [stderr] 145 | |                         .map(|id| {
[INFO] [stderr] 146 | |                             nodes
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                         })
[INFO] [stderr] 153 | |                         .collect::<Vec<_>>();
[INFO] [stderr]     | |_____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:352:9
[INFO] [stderr]     |
[INFO] [stderr] 352 |         self.sender.send((self.id, msg));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         self.sender.send((self.id, msg));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]    --> src/main.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 | /                     sampled
[INFO] [stderr] 144 | |                         .iter()
[INFO] [stderr] 145 | |                         .map(|id| {
[INFO] [stderr] 146 | |                             nodes
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                         })
[INFO] [stderr] 153 | |                         .collect::<Vec<_>>();
[INFO] [stderr]     | |_____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:352:9
[INFO] [stderr]     |
[INFO] [stderr] 352 |         self.sender.send((self.id, msg));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         self.sender.send((self.id, msg));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `"docker" "inspect" "89b9ce0d0b850c0714c03da2d84980104eecc87eede73d5b9c82ab1e1f045fb4"`
[INFO] running `"docker" "rm" "-f" "89b9ce0d0b850c0714c03da2d84980104eecc87eede73d5b9c82ab1e1f045fb4"`
[INFO] [stdout] 89b9ce0d0b850c0714c03da2d84980104eecc87eede73d5b9c82ab1e1f045fb4