[INFO] updating cached repository ebfull/powersoftau
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ebfull/powersoftau
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ebfull/powersoftau" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/ebfull/powersoftau"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/ebfull/powersoftau'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ebfull/powersoftau" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/ebfull/powersoftau"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/ebfull/powersoftau'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5429415959175082207fd61c10319e47a6b56e87
[INFO] sha for GitHub repo ebfull/powersoftau: 5429415959175082207fd61c10319e47a6b56e87
[INFO] validating manifest of ebfull/powersoftau on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ebfull/powersoftau on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ebfull/powersoftau
[INFO] finished frobbing ebfull/powersoftau
[INFO] frobbed toml for ebfull/powersoftau written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/ebfull/powersoftau/Cargo.toml
[INFO] started frobbing ebfull/powersoftau
[INFO] finished frobbing ebfull/powersoftau
[INFO] frobbed toml for ebfull/powersoftau written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/ebfull/powersoftau/Cargo.toml
[INFO] crate ebfull/powersoftau already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ebfull/powersoftau against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-6/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/ebfull/powersoftau:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 589a65a66198c72afac49ce8532b56b67ccc9209bed3d238d9e08dd285a743d0
[INFO] running `"docker" "start" "-a" "589a65a66198c72afac49ce8532b56b67ccc9209bed3d238d9e08dd285a743d0"`
[INFO] [stderr]    Compiling hex-literal-impl v0.1.1
[INFO] [stderr]     Checking pairing v0.14.1
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking blake2 v0.6.1
[INFO] [stderr]     Checking hex-literal v0.1.1
[INFO] [stderr]     Checking bellman v0.1.0
[INFO] [stderr]     Checking powersoftau v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Arc` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:664:21
[INFO] [stderr]     |
[INFO] [stderr] 44  | use std::sync::{Arc, Mutex};
[INFO] [stderr]     |                 --- the item `Arc` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 664 |     use std::sync::{Arc, Mutex};
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Mutex` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:664:26
[INFO] [stderr]     |
[INFO] [stderr] 44  | use std::sync::{Arc, Mutex};
[INFO] [stderr]     |                      ----- the item `Mutex` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 664 |     use std::sync::{Arc, Mutex};
[INFO] [stderr]     |                          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Arc` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:664:21
[INFO] [stderr]     |
[INFO] [stderr] 44  | use std::sync::{Arc, Mutex};
[INFO] [stderr]     |                 --- the item `Arc` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 664 |     use std::sync::{Arc, Mutex};
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Mutex` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:664:26
[INFO] [stderr]     |
[INFO] [stderr] 44  | use std::sync::{Arc, Mutex};
[INFO] [stderr]     |                      ----- the item `Mutex` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 664 |     use std::sync::{Arc, Mutex};
[INFO] [stderr]     |                          ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.48s
[INFO] running `"docker" "inspect" "589a65a66198c72afac49ce8532b56b67ccc9209bed3d238d9e08dd285a743d0"`
[INFO] running `"docker" "rm" "-f" "589a65a66198c72afac49ce8532b56b67ccc9209bed3d238d9e08dd285a743d0"`
[INFO] [stdout] 589a65a66198c72afac49ce8532b56b67ccc9209bed3d238d9e08dd285a743d0