[INFO] crate sapling-crypto_ce 0.0.5 is already in cache
[INFO] extracting crate sapling-crypto_ce 0.0.5 into work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/sapling-crypto_ce/0.0.5
[INFO] extracting crate sapling-crypto_ce 0.0.5 into work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/sapling-crypto_ce/0.0.5
[INFO] validating manifest of sapling-crypto_ce-0.0.5 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 sapling-crypto_ce-0.0.5 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 sapling-crypto_ce-0.0.5
[INFO] finished frobbing sapling-crypto_ce-0.0.5
[INFO] frobbed toml for sapling-crypto_ce-0.0.5 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/sapling-crypto_ce/0.0.5/Cargo.toml
[INFO] started frobbing sapling-crypto_ce-0.0.5
[INFO] finished frobbing sapling-crypto_ce-0.0.5
[INFO] frobbed toml for sapling-crypto_ce-0.0.5 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/sapling-crypto_ce/0.0.5/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking sapling-crypto_ce-0.0.5 against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-2/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/sapling-crypto_ce/0.0.5:/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1a034f8cfb42efaf4ad51bb694ef94ef44efc5050f70a5fda86d126d8bda2bb1
[INFO] running `"docker" "start" "-a" "1a034f8cfb42efaf4ad51bb694ef94ef44efc5050f70a5fda86d126d8bda2bb1"`
[INFO] [stderr]     Checking blake2-rfc_bellman_edition v0.0.1
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling ff_derive_ce v0.4.0
[INFO] [stderr]     Checking ff_ce v0.6.0
[INFO] [stderr]     Checking pairing_ce v0.17.0
[INFO] [stderr]     Checking bellman_ce v0.3.0
[INFO] [stderr]     Checking sapling-crypto_ce v0.0.5 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/babyjubjub/mod.rs:366:17
[INFO] [stderr]     |
[INFO] [stderr] 366 |             for mut gen in tmp_params.pedersen_hash_generators.iter().cloned() {
[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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/jubjub/mod.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |             for mut gen in tmp_params.pedersen_hash_generators.iter().cloned() {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/alt_babyjubjub/mod.rs:298:17
[INFO] [stderr]     |
[INFO] [stderr] 298 |             for mut gen in tmp_params.pedersen_hash_generators.iter().cloned() {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/alt_babyjubjub/mod.rs:517:17
[INFO] [stderr]     |
[INFO] [stderr] 517 |             for mut gen in tmp_params.pedersen_hash_generators.iter().cloned() {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/babyjubjub/mod.rs:366:17
[INFO] [stderr]     |
[INFO] [stderr] 366 |             for mut gen in tmp_params.pedersen_hash_generators.iter().cloned() {
[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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/jubjub/mod.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |             for mut gen in tmp_params.pedersen_hash_generators.iter().cloned() {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/alt_babyjubjub/mod.rs:298:17
[INFO] [stderr]     |
[INFO] [stderr] 298 |             for mut gen in tmp_params.pedersen_hash_generators.iter().cloned() {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/alt_babyjubjub/mod.rs:517:17
[INFO] [stderr]     |
[INFO] [stderr] 517 |             for mut gen in tmp_params.pedersen_hash_generators.iter().cloned() {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/circuit/uint32.rs:432:17
[INFO] [stderr]     |
[INFO] [stderr] 432 |             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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/circuit/uint32.rs:463:17
[INFO] [stderr]     |
[INFO] [stderr] 463 |             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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/circuit/pedersen_hash.rs:154:21
[INFO] [stderr]     |
[INFO] [stderr] 154 |                 let mut input: Vec<bool> = (0..length).map(|_| rng.gen()).collect();
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/circuit/pedersen_hash.rs:238:21
[INFO] [stderr]     |
[INFO] [stderr] 238 |                 let mut input: Vec<bool> = (0..length).map(|_| rng.gen()).collect();
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/circuit/baby_pedersen_hash.rs:154:21
[INFO] [stderr]     |
[INFO] [stderr] 154 |                 let mut input: Vec<bool> = (0..length).map(|_| rng.gen()).collect();
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.46s
[INFO] running `"docker" "inspect" "1a034f8cfb42efaf4ad51bb694ef94ef44efc5050f70a5fda86d126d8bda2bb1"`
[INFO] running `"docker" "rm" "-f" "1a034f8cfb42efaf4ad51bb694ef94ef44efc5050f70a5fda86d126d8bda2bb1"`
[INFO] [stdout] 1a034f8cfb42efaf4ad51bb694ef94ef44efc5050f70a5fda86d126d8bda2bb1