[INFO] updating cached repository camp81/exam
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/camp81/exam
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/camp81/exam" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/camp81/exam"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/camp81/exam'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/camp81/exam" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/camp81/exam"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/camp81/exam'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6d710c15c39aa2511226cf2ba4ba0f7065af99a4
[INFO] sha for GitHub repo camp81/exam: 6d710c15c39aa2511226cf2ba4ba0f7065af99a4
[INFO] validating manifest of camp81/exam on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of camp81/exam on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing camp81/exam
[INFO] finished frobbing camp81/exam
[INFO] frobbed toml for camp81/exam written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/camp81/exam/Cargo.toml
[INFO] started frobbing camp81/exam
[INFO] finished frobbing camp81/exam
[INFO] frobbed toml for camp81/exam written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/camp81/exam/Cargo.toml
[INFO] crate camp81/exam already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/camp81/exam/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/ethcore/rust-secp256k1`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/ethcore/rust-secp256k1`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking camp81/exam against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/camp81/exam:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a08bbb3a29016e1c88bc78b1b7f26392fb99cdeb9ca2dad9f2d397fef515d6fe
[INFO] running `"docker" "start" "-a" "a08bbb3a29016e1c88bc78b1b7f26392fb99cdeb9ca2dad9f2d397fef515d6fe"`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling eth-secp256k1 v0.5.7 (https://github.com/ethcore/rust-secp256k1#9791e79f)
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking ethkey v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref SECP256K1: secp256k1::Secp256k1 = secp256k1::Secp256k1::new();
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected function, found struct `Brain`
[INFO] [stderr]   --> src/brain.rs:42:23
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let first_keypair = Brain(words.clone()).generate().unwrap();
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected function, found struct `Brain`
[INFO] [stderr]   --> src/brain.rs:43:24
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let second_keypair = Brain(words.clone()).generate().unwrap();
[INFO] [stderr]    |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: arrays only have std trait implementations for lengths 0..=32
[INFO] [stderr]    --> src/primitive.rs:12:20
[INFO] [stderr]     |
[INFO] [stderr] 12  |         pub struct $name([u8; $size]);
[INFO] [stderr]     |                          ^^^^^^^^^^^ the trait `std::array::LengthAtMost32` is not implemented for `[u8; 64]`
[INFO] [stderr] ...
[INFO] [stderr] 117 | impl_primitive!(Public, 64, Error::InvalidPublic);
[INFO] [stderr]     | -------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::cmp::Eq` for `[u8; 64]`
[INFO] [stderr]     = note: required by `std::cmp::AssertParamIsEq`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref SECP256K1: secp256k1::Secp256k1 = secp256k1::Secp256k1::new();
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rand::OsRng: secp256k1::rand::RngCore` is not satisfied
[INFO] [stderr]   --> src/random.rs:11:34
[INFO] [stderr]    |
[INFO] [stderr] 11 |         let (sec, publ) = try!(context.generate_keypair(&mut rng));
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^ the trait `secp256k1::rand::RngCore` is not implemented for `rand::OsRng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `secp256k1::rand::Rng` for `rand::OsRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: arrays only have std trait implementations for lengths 0..=32
[INFO] [stderr]   --> src/signature.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Signature([u8; 65]);
[INFO] [stderr]    |                      ^^^^^^^^ the trait `std::array::LengthAtMost32` is not implemented for `[u8; 65]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::cmp::Eq` for `[u8; 65]`
[INFO] [stderr]    = note: required by `std::cmp::AssertParamIsEq`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `ethkey`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: arrays only have std trait implementations for lengths 0..=32
[INFO] [stderr]    --> src/primitive.rs:12:20
[INFO] [stderr]     |
[INFO] [stderr] 12  |         pub struct $name([u8; $size]);
[INFO] [stderr]     |                          ^^^^^^^^^^^ the trait `std::array::LengthAtMost32` is not implemented for `[u8; 64]`
[INFO] [stderr] ...
[INFO] [stderr] 117 | impl_primitive!(Public, 64, Error::InvalidPublic);
[INFO] [stderr]     | -------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::cmp::Eq` for `[u8; 64]`
[INFO] [stderr]     = note: required by `std::cmp::AssertParamIsEq`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rand::OsRng: secp256k1::rand::RngCore` is not satisfied
[INFO] [stderr]   --> src/random.rs:11:34
[INFO] [stderr]    |
[INFO] [stderr] 11 |         let (sec, publ) = try!(context.generate_keypair(&mut rng));
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^ the trait `secp256k1::rand::RngCore` is not implemented for `rand::OsRng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `secp256k1::rand::Rng` for `rand::OsRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: arrays only have std trait implementations for lengths 0..=32
[INFO] [stderr]   --> src/signature.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Signature([u8; 65]);
[INFO] [stderr]    |                      ^^^^^^^^ the trait `std::array::LengthAtMost32` is not implemented for `[u8; 65]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::cmp::Eq` for `[u8; 65]`
[INFO] [stderr]    = note: required by `std::cmp::AssertParamIsEq`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Generator`
[INFO] [stderr]   --> src/brain.rs:37:14
[INFO] [stderr]    |
[INFO] [stderr] 37 |     use {Brain, Generator};
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0423.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `ethkey`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a08bbb3a29016e1c88bc78b1b7f26392fb99cdeb9ca2dad9f2d397fef515d6fe"`
[INFO] running `"docker" "rm" "-f" "a08bbb3a29016e1c88bc78b1b7f26392fb99cdeb9ca2dad9f2d397fef515d6fe"`
[INFO] [stdout] a08bbb3a29016e1c88bc78b1b7f26392fb99cdeb9ca2dad9f2d397fef515d6fe