[INFO] crate sapling-crypto 0.0.1 is already in cache
[INFO] extracting crate sapling-crypto 0.0.1 into work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/reg/sapling-crypto/0.0.1
[INFO] extracting crate sapling-crypto 0.0.1 into work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/reg/sapling-crypto/0.0.1
[INFO] validating manifest of sapling-crypto-0.0.1 on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sapling-crypto-0.0.1 on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sapling-crypto-0.0.1
[INFO] finished frobbing sapling-crypto-0.0.1
[INFO] frobbed toml for sapling-crypto-0.0.1 written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/reg/sapling-crypto/0.0.1/Cargo.toml
[INFO] started frobbing sapling-crypto-0.0.1
[INFO] finished frobbing sapling-crypto-0.0.1
[INFO] frobbed toml for sapling-crypto-0.0.1 written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/reg/sapling-crypto/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking sapling-crypto-0.0.1 against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-1/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/reg/sapling-crypto/0.0.1:/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" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b9a5757a61df7c7ef1019da4f42c7cc9a4f549ee08fff3bfd6305dd65f3dc51a
[INFO] running `"docker" "start" "-a" "b9a5757a61df7c7ef1019da4f42c7cc9a4f549ee08fff3bfd6305dd65f3dc51a"`
[INFO] [stderr]     Checking pairing v0.13.2
[INFO] [stderr]     Checking bellman v0.0.6
[INFO] [stderr]     Checking sapling-crypto v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/circuit/uint32.rs:302:17
[INFO] [stderr]     |
[INFO] [stderr] 302 |             let mut v = (0..32).map(|_| Boolean::<()>::constant(rng.gen())).collect::<Vec<_>>();
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.39s
[INFO] running `"docker" "inspect" "b9a5757a61df7c7ef1019da4f42c7cc9a4f549ee08fff3bfd6305dd65f3dc51a"`
[INFO] running `"docker" "rm" "-f" "b9a5757a61df7c7ef1019da4f42c7cc9a4f549ee08fff3bfd6305dd65f3dc51a"`
[INFO] [stdout] b9a5757a61df7c7ef1019da4f42c7cc9a4f549ee08fff3bfd6305dd65f3dc51a