[INFO] crate witnet-bn 0.4.5 is already in cache
[INFO] testing witnet-bn-0.4.5 against 1.44.0 for beta-1.45-1
[INFO] extracting crate witnet-bn 0.4.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate witnet-bn 0.4.5 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate witnet-bn 0.4.5
[INFO] finished tweaking crates.io crate witnet-bn 0.4.5
[INFO] tweaked toml for crates.io crate witnet-bn 0.4.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate witnet-bn 0.4.5 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 341e30f97d96f329767cf2458c456da848894c6f9619d072cc6b9fd722646748
[INFO] running `"docker" "start" "-a" "341e30f97d96f329767cf2458c456da848894c6f9619d072cc6b9fd722646748"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling witnet-bn v0.4.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:161:13
[INFO] [stderr]     |
[INFO] [stderr] 161 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:174:22
[INFO] [stderr]     |
[INFO] [stderr] 174 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:204:22
[INFO] [stderr]     |
[INFO] [stderr] 204 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/fields/fp.rs:37:28
[INFO] [stderr]     |
[INFO] [stderr] 37  |                   $name::new(try!(U256::decode(s))).ok_or_else(|| s.error("integer is not less than modulus"))
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 185 | / field_impl!(
[INFO] [stderr] 186 | |     Fr,
[INFO] [stderr] 187 | |     [
[INFO] [stderr] 188 | |         0x43e1f593f0000001,
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |     0x6586864b4c6911b3c2e1f593efffffff
[INFO] [stderr] 212 | | );
[INFO] [stderr]     | |__- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/fields/fp.rs:37:28
[INFO] [stderr]     |
[INFO] [stderr] 37  |                   $name::new(try!(U256::decode(s))).ok_or_else(|| s.error("integer is not less than modulus"))
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / field_impl!(
[INFO] [stderr] 215 | |     Fq,
[INFO] [stderr] 216 | |     [
[INFO] [stderr] 217 | |         0x3c208c16d87cfd47,
[INFO] [stderr] ...   |
[INFO] [stderr] 240 | |     0x9ede7d651eca6ac987d20782e4866389
[INFO] [stderr] 241 | | );
[INFO] [stderr]     | |__- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/fields/fq2.rs:59:24
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let combined = try!(U512::decode(s));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:241:13
[INFO] [stderr]     |
[INFO] [stderr] 241 |             try!(l.encode(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:250:9
[INFO] [stderr]     |
[INFO] [stderr] 250 |         try!(self.x.encode(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:251:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         try!(self.y.encode(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:260:17
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let l = try!(u8::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:264:16
[INFO] [stderr]     |
[INFO] [stderr] 264 |             Ok(try!(AffineG::decode(s)).to_jacobian())
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:274:17
[INFO] [stderr]     |
[INFO] [stderr] 274 |         let x = try!(P::Base::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:275:17
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let y = try!(P::Base::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:154:27
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut buf = [0; (4 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:171:27
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let mut buf = [0; (4 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:184:27
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut buf = [0; (2 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:201:27
[INFO] [stderr]     |
[INFO] [stderr] 201 |         let mut buf = [0; (2 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.68s
[INFO] running `"docker" "inspect" "341e30f97d96f329767cf2458c456da848894c6f9619d072cc6b9fd722646748"`
[INFO] running `"docker" "rm" "-f" "341e30f97d96f329767cf2458c456da848894c6f9619d072cc6b9fd722646748"`
[INFO] [stdout] 341e30f97d96f329767cf2458c456da848894c6f9619d072cc6b9fd722646748
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7cd0ddb651848298b496b7935524d66ff4adda09f1963783e8cb9efffdba6bf6
[INFO] running `"docker" "start" "-a" "7cd0ddb651848298b496b7935524d66ff4adda09f1963783e8cb9efffdba6bf6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:161:13
[INFO] [stderr]     |
[INFO] [stderr] 161 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:174:22
[INFO] [stderr]     |
[INFO] [stderr] 174 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:204:22
[INFO] [stderr]     |
[INFO] [stderr] 204 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/fields/fp.rs:37:28
[INFO] [stderr]     |
[INFO] [stderr] 37  |                   $name::new(try!(U256::decode(s))).ok_or_else(|| s.error("integer is not less than modulus"))
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 185 | / field_impl!(
[INFO] [stderr] 186 | |     Fr,
[INFO] [stderr] 187 | |     [
[INFO] [stderr] 188 | |         0x43e1f593f0000001,
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |     0x6586864b4c6911b3c2e1f593efffffff
[INFO] [stderr] 212 | | );
[INFO] [stderr]     | |__- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/fields/fp.rs:37:28
[INFO] [stderr]     |
[INFO] [stderr] 37  |                   $name::new(try!(U256::decode(s))).ok_or_else(|| s.error("integer is not less than modulus"))
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / field_impl!(
[INFO] [stderr] 215 | |     Fq,
[INFO] [stderr] 216 | |     [
[INFO] [stderr] 217 | |         0x3c208c16d87cfd47,
[INFO] [stderr] ...   |
[INFO] [stderr] 240 | |     0x9ede7d651eca6ac987d20782e4866389
[INFO] [stderr] 241 | | );
[INFO] [stderr]     | |__- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/fields/fq2.rs:59:24
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let combined = try!(U512::decode(s));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:241:13
[INFO] [stderr]     |
[INFO] [stderr] 241 |             try!(l.encode(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:250:9
[INFO] [stderr]     |
[INFO] [stderr] 250 |         try!(self.x.encode(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:251:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         try!(self.y.encode(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:260:17
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let l = try!(u8::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:264:16
[INFO] [stderr]     |
[INFO] [stderr] 264 |             Ok(try!(AffineG::decode(s)).to_jacobian())
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:274:17
[INFO] [stderr]     |
[INFO] [stderr] 274 |         let x = try!(P::Base::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:275:17
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let y = try!(P::Base::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:154:27
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut buf = [0; (4 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:171:27
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let mut buf = [0; (4 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:184:27
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut buf = [0; (2 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:201:27
[INFO] [stderr]     |
[INFO] [stderr] 201 |         let mut buf = [0; (2 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling bincode v0.6.1
[INFO] [stderr]    Compiling witnet-bn v0.4.5 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `bn`
[INFO] [stderr]  --> examples/dh.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | extern crate bn;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `bn`
[INFO] [stderr]  --> examples/joux.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate bn;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `witnet-bn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `witnet-bn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0463]: can't find crate for `bn`
[INFO] [stderr]  --> tests/serialization.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | extern crate bn;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `witnet-bn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:161:13
[INFO] [stderr]     |
[INFO] [stderr] 161 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:174:22
[INFO] [stderr]     |
[INFO] [stderr] 174 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:204:22
[INFO] [stderr]     |
[INFO] [stderr] 204 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/fields/fp.rs:37:28
[INFO] [stderr]     |
[INFO] [stderr] 37  |                   $name::new(try!(U256::decode(s))).ok_or_else(|| s.error("integer is not less than modulus"))
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 185 | / field_impl!(
[INFO] [stderr] 186 | |     Fr,
[INFO] [stderr] 187 | |     [
[INFO] [stderr] 188 | |         0x43e1f593f0000001,
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |     0x6586864b4c6911b3c2e1f593efffffff
[INFO] [stderr] 212 | | );
[INFO] [stderr]     | |__- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/fields/fp.rs:37:28
[INFO] [stderr]     |
[INFO] [stderr] 37  |                   $name::new(try!(U256::decode(s))).ok_or_else(|| s.error("integer is not less than modulus"))
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / field_impl!(
[INFO] [stderr] 215 | |     Fq,
[INFO] [stderr] 216 | |     [
[INFO] [stderr] 217 | |         0x3c208c16d87cfd47,
[INFO] [stderr] ...   |
[INFO] [stderr] 240 | |     0x9ede7d651eca6ac987d20782e4866389
[INFO] [stderr] 241 | | );
[INFO] [stderr]     | |__- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/fields/fq2.rs:59:24
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let combined = try!(U512::decode(s));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:241:13
[INFO] [stderr]     |
[INFO] [stderr] 241 |             try!(l.encode(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:250:9
[INFO] [stderr]     |
[INFO] [stderr] 250 |         try!(self.x.encode(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:251:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         try!(self.y.encode(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:260:17
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let l = try!(u8::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:264:16
[INFO] [stderr]     |
[INFO] [stderr] 264 |             Ok(try!(AffineG::decode(s)).to_jacobian())
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:274:17
[INFO] [stderr]     |
[INFO] [stderr] 274 |         let x = try!(P::Base::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/groups/mod.rs:275:17
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let y = try!(P::Base::decode(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:154:27
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut buf = [0; (4 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:171:27
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let mut buf = [0; (4 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:184:27
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut buf = [0; (2 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/arith.rs:201:27
[INFO] [stderr]     |
[INFO] [stderr] 201 |         let mut buf = [0; (2 * 16)];
[INFO] [stderr]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]  --> src/fields/tests.rs:1:30
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{Rng, SeedableRng, StdRng};
[INFO] [stderr]   |                              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]    --> src/fields/tests.rs:123:19
[INFO] [stderr]     |
[INFO] [stderr] 123 |     let mut rng = StdRng::from_seed(seed);
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]    --> src/fields/tests.rs:125:32
[INFO] [stderr]     |
[INFO] [stderr] 125 |     rand_element_squaring::<F, StdRng>(&mut rng);
[INFO] [stderr]     |                                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]    --> src/fields/tests.rs:126:45
[INFO] [stderr]     |
[INFO] [stderr] 126 |     rand_element_addition_and_negation::<F, StdRng>(&mut rng);
[INFO] [stderr]     |                                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]    --> src/fields/tests.rs:127:38
[INFO] [stderr]     |
[INFO] [stderr] 127 |     rand_element_multiplication::<F, StdRng>(&mut rng);
[INFO] [stderr]     |                                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]    --> src/fields/tests.rs:128:31
[INFO] [stderr]     |
[INFO] [stderr] 128 |     rand_element_inverse::<F, StdRng>(&mut rng);
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]    --> src/fields/tests.rs:129:28
[INFO] [stderr]     |
[INFO] [stderr] 129 |     rand_element_eval::<F, StdRng>(&mut rng);
[INFO] [stderr]     |                            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]     --> src/groups/mod.rs:1106:19
[INFO] [stderr]      |
[INFO] [stderr] 1106 |     let mut rng = StdRng::from_seed(seed);
[INFO] [stderr]      |                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]     --> src/groups/mod.rs:1099:29
[INFO] [stderr]      |
[INFO] [stderr] 1099 |     use rand::{SeedableRng, StdRng};
[INFO] [stderr]      |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]     --> src/groups/mod.rs:1126:19
[INFO] [stderr]      |
[INFO] [stderr] 1126 |     let mut rng = StdRng::from_seed(seed);
[INFO] [stderr]      |                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]     --> src/groups/mod.rs:1119:29
[INFO] [stderr]      |
[INFO] [stderr] 1119 |     use rand::{SeedableRng, StdRng};
[INFO] [stderr]      |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]     --> src/groups/mod.rs:1158:19
[INFO] [stderr]      |
[INFO] [stderr] 1158 |     let mut rng = StdRng::from_seed(seed);
[INFO] [stderr]      |                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]     --> src/groups/mod.rs:1151:29
[INFO] [stderr]      |
[INFO] [stderr] 1151 |     use rand::{SeedableRng, StdRng};
[INFO] [stderr]      |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]    --> src/groups/tests.rs:100:19
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let mut rng = StdRng::from_seed(seed);
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::StdRng': import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stderr]   --> src/groups/tests.rs:93:29
[INFO] [stderr]    |
[INFO] [stderr] 93 |     use rand::{SeedableRng, StdRng};
[INFO] [stderr]    |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 33 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7cd0ddb651848298b496b7935524d66ff4adda09f1963783e8cb9efffdba6bf6"`
[INFO] running `"docker" "rm" "-f" "7cd0ddb651848298b496b7935524d66ff4adda09f1963783e8cb9efffdba6bf6"`
[INFO] [stdout] 7cd0ddb651848298b496b7935524d66ff4adda09f1963783e8cb9efffdba6bf6