[INFO] fetching crate bellperson 0.2.0...
[INFO] extracting crate bellperson 0.2.0 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/bellperson/0.2.0
[INFO] extracting crate bellperson 0.2.0 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/bellperson/0.2.0
[INFO] validating manifest of bellperson-0.2.0 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bellperson-0.2.0 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bellperson-0.2.0
[INFO] finished frobbing bellperson-0.2.0
[INFO] frobbed toml for bellperson-0.2.0 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/bellperson/0.2.0/Cargo.toml
[INFO] started frobbing bellperson-0.2.0
[INFO] finished frobbing bellperson-0.2.0
[INFO] frobbed toml for bellperson-0.2.0 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/bellperson/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking bellperson-0.2.0 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-3/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/bellperson/0.2.0:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 08fde0842d29ce48112fa8c2c23085e95388a3a7c8c0218e5f718dd21c97115c
[INFO] running `"docker" "start" "-a" "08fde0842d29ce48112fa8c2c23085e95388a3a7c8c0218e5f718dd21c97115c"`
[INFO] [stderr]     Checking bellperson v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/multiexp.rs:156:10
[INFO] [stderr]     |
[INFO] [stderr] 156 | ) -> Box<Future<Item = <G as CurveAffine>::Projective, Error = SynthesisError>>
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = <G as CurveAffine>::Projective, Error = SynthesisError>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/multiexp.rs:259:10
[INFO] [stderr]     |
[INFO] [stderr] 259 | ) -> Box<Future<Item = <G as CurveAffine>::Projective, Error = SynthesisError>>
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = <G as CurveAffine>::Projective, Error = SynthesisError>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/multiexp.rs:156:10
[INFO] [stderr]     |
[INFO] [stderr] 156 | ) -> Box<Future<Item = <G as CurveAffine>::Projective, Error = SynthesisError>>
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = <G as CurveAffine>::Projective, Error = SynthesisError>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/multiexp.rs:259:10
[INFO] [stderr]     |
[INFO] [stderr] 259 | ) -> Box<Future<Item = <G as CurveAffine>::Projective, Error = SynthesisError>>
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = <G as CurveAffine>::Projective, Error = SynthesisError>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/groth16/tests/dummy_engine.rs:321:63
[INFO] [stderr]     |
[INFO] [stderr] 321 |     fn batch_normalization<S: ::std::borrow::BorrowMut<Self>>(v: &mut [S]) {}
[INFO] [stderr]     |                                                               ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/groth16/tests/dummy_engine.rs:361:13
[INFO] [stderr]     |
[INFO] [stderr] 361 |     fn hash(input: &[u8]) -> Self {
[INFO] [stderr]     |             ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/groth16/tests/dummy_engine.rs:370:42
[INFO] [stderr]     |
[INFO] [stderr] 370 |     fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
[INFO] [stderr]     |                                          ^^^^^ help: consider prefixing with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/mimc.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |             let mut tmp_value = xl_value.map(|mut e| {
[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]   --> tests/mimc.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |             let mut tmp = cs.alloc(
[INFO] [stderr]    |                 ----^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/mimc.rs:114:17
[INFO] [stderr]     |
[INFO] [stderr] 114 |             let mut new_xl_value = xl_value.map(|mut e| {
[INFO] [stderr]     |                 ----^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/mimc.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |             let mut new_xl = if i == (MIMC_ROUNDS - 1) {
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `"docker" "inspect" "08fde0842d29ce48112fa8c2c23085e95388a3a7c8c0218e5f718dd21c97115c"`
[INFO] running `"docker" "rm" "-f" "08fde0842d29ce48112fa8c2c23085e95388a3a7c8c0218e5f718dd21c97115c"`
[INFO] [stdout] 08fde0842d29ce48112fa8c2c23085e95388a3a7c8c0218e5f718dd21c97115c