[INFO] fetching crate libsecp256k1 0.3.5...
[INFO] checking libsecp256k1-0.3.5 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate libsecp256k1 0.3.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libsecp256k1 0.3.5 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libsecp256k1 0.3.5
[INFO] finished tweaking crates.io crate libsecp256k1 0.3.5
[INFO] tweaked toml for crates.io crate libsecp256k1 0.3.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "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=forbid" "-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" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f6abba542ea82cc51d1a93fb57956ca682eb9d18d6b544eed52446f7ce69687e
[INFO] running `"docker" "start" "-a" "f6abba542ea82cc51d1a93fb57956ca682eb9d18d6b544eed52446f7ce69687e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]    Compiling secp256k1-test v0.7.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling hex-literal-impl v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking libsecp256k1 v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr] error[E0277]: the trait bound `rand::prelude::ThreadRng: rand::Rng` is not satisfied
[INFO] [stderr]    --> benches/sign.rs:19:56
[INFO] [stderr]     |
[INFO] [stderr] 19  |     let (secp_privkey, _) = secp256k1.generate_keypair(&mut thread_rng()).unwrap();
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^ the trait `rand::Rng` is not implemented for `rand::prelude::ThreadRng`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.7.3/src/lib.rs:394:1
[INFO] [stderr]     |
[INFO] [stderr] 394 | impl<R: RngCore + ?Sized> Rng for R {}
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand` are being used?
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `unwrap` found for tuple `(secp256k1::Signature, secp256k1::RecoveryId)` in the current scope
[INFO] [stderr]   --> benches/sign.rs:23:41
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let _ = sign(&message, &seckey).unwrap();
[INFO] [stderr]    |                                         ^^^^^^ method not found in `(secp256k1::Signature, secp256k1::RecoveryId)`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rand::prelude::ThreadRng: rand::Rng` is not satisfied
[INFO] [stderr]    --> benches/public_key.rs:16:55
[INFO] [stderr]     |
[INFO] [stderr] 16  |     let (_, secp_pubkey) = secp256k1.generate_keypair(&mut thread_rng()).unwrap();
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^ the trait `rand::Rng` is not implemented for `rand::prelude::ThreadRng`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.7.3/src/lib.rs:394:1
[INFO] [stderr]     |
[INFO] [stderr] 394 | impl<R: RngCore + ?Sized> Rng for R {}
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand` are being used?
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rand::prelude::ThreadRng: rand::Rng` is not satisfied
[INFO] [stderr]    --> benches/signature.rs:17:51
[INFO] [stderr]     |
[INFO] [stderr] 17  |     let (privkey, _) = secp256k1.generate_keypair(&mut thread_rng()).unwrap();
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^ the trait `rand::Rng` is not implemented for `rand::prelude::ThreadRng`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.7.3/src/lib.rs:394:1
[INFO] [stderr]     |
[INFO] [stderr] 394 | impl<R: RngCore + ?Sized> Rng for R {}
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand` are being used?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `libsecp256k1`.
[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[E0277]: the trait bound `rand::prelude::ThreadRng: rand::Rng` is not satisfied
[INFO] [stderr]    --> benches/signature.rs:34:51
[INFO] [stderr]     |
[INFO] [stderr] 34  |     let (privkey, _) = secp256k1.generate_keypair(&mut thread_rng()).unwrap();
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^ the trait `rand::Rng` is not implemented for `rand::prelude::ThreadRng`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.7.3/src/lib.rs:394:1
[INFO] [stderr]     |
[INFO] [stderr] 394 | impl<R: RngCore + ?Sized> Rng for R {}
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand` are being used?
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rand::prelude::ThreadRng: rand::Rng` is not satisfied
[INFO] [stderr]    --> benches/public_key.rs:29:55
[INFO] [stderr]     |
[INFO] [stderr] 29  |     let (_, secp_pubkey) = secp256k1.generate_keypair(&mut thread_rng()).unwrap();
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^ the trait `rand::Rng` is not implemented for `rand::prelude::ThreadRng`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.7.3/src/lib.rs:394:1
[INFO] [stderr]     |
[INFO] [stderr] 394 | impl<R: RngCore + ?Sized> Rng for R {}
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand` are being used?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error[E0277]: the trait bound `rand::prelude::ThreadRng: rand::Rng` is not satisfied
[INFO] [stderr]    --> benches/public_key.rs:43:55
[INFO] [stderr]     |
[INFO] [stderr] 43  |     let (_, secp_pubkey) = secp256k1.generate_keypair(&mut thread_rng()).unwrap();
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^ the trait `rand::Rng` is not implemented for `rand::prelude::ThreadRng`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.7.3/src/lib.rs:394:1
[INFO] [stderr]     |
[INFO] [stderr] 394 | impl<R: RngCore + ?Sized> Rng for R {}
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand` are being used?
[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: build failed
[INFO] running `"docker" "inspect" "f6abba542ea82cc51d1a93fb57956ca682eb9d18d6b544eed52446f7ce69687e"`
[INFO] running `"docker" "rm" "-f" "f6abba542ea82cc51d1a93fb57956ca682eb9d18d6b544eed52446f7ce69687e"`
[INFO] [stdout] f6abba542ea82cc51d1a93fb57956ca682eb9d18d6b544eed52446f7ce69687e