[INFO] fetching crate molasses 0.1.0...
[INFO] testing molasses-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate molasses 0.1.0 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate molasses 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate molasses 0.1.0
[INFO] finished tweaking crates.io crate molasses 0.1.0
[INFO] tweaked toml for crates.io crate molasses 0.1.0 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck v0.8.5
[INFO] [stderr]   Downloaded quickcheck_macros v0.8.0
[INFO] [stderr]   Downloaded clear_on_drop v0.2.4
[INFO] [stderr]   Downloaded x25519-dalek v0.4.5
[INFO] [stderr]   Downloaded curve25519-dalek v1.2.6
[INFO] [stderr]   Downloaded doc-comment v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14a333ad3af047489f0e5cb31cd0e353883594f0552dfe73790d48b2ee99dfeb
[INFO] running `Command { std: "docker" "start" "-a" "14a333ad3af047489f0e5cb31cd0e353883594f0552dfe73790d48b2ee99dfeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14a333ad3af047489f0e5cb31cd0e353883594f0552dfe73790d48b2ee99dfeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14a333ad3af047489f0e5cb31cd0e353883594f0552dfe73790d48b2ee99dfeb", kill_on_drop: false }`
[INFO] [stdout] 14a333ad3af047489f0e5cb31cd0e353883594f0552dfe73790d48b2ee99dfeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1464e9b6c1a055f6e31d15a792bdd6937bef7d52776028e8fc7d38fbc162097e
[INFO] running `Command { std: "docker" "start" "-a" "1464e9b6c1a055f6e31d15a792bdd6937bef7d52776028e8fc7d38fbc162097e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling signature v1.5.0
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling doc-comment v0.1.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling ed25519 v1.4.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling curve25519-dalek v1.2.6
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling x25519-dalek v0.4.5
[INFO] [stderr]    Compiling zeroize_derive v1.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling curve25519-dalek v3.2.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling molasses v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Identity`, `error::Error`
[INFO] [stdout]  --> src/codec.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 |     credential::{BasicCredential, Identity},
[INFO] [stdout]   |                                   ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `de::Deserialize`, `ser::Serialize`
[INFO] [stdout]  --> src/credential.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{de::Deserialize, ser::Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sig::ED25519`
[INFO] [stdout]  --> src/crypto/ciphersuite.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     sig::ED25519,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: rand_core::CryptoRng` is not satisfied
[INFO] [stdout]    --> src/crypto/sig.rs:81:61
[INFO] [stdout]     |
[INFO] [stdout] 81  |         Ed25519SecretKey(ed25519_dalek::SecretKey::generate(csprng))
[INFO] [stdout]     |                          ---------------------------------- ^^^^^^ the trait `rand_core::CryptoRng` is not implemented for `T`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `SecretKey::generate`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.1/src/secret.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 169 |         T: CryptoRng + RngCore,
[INFO] [stdout]     |            ^^^^^^^^^ required by this bound in `SecretKey::generate`
[INFO] [stdout] help: consider further restricting this bound
[INFO] [stdout]     |
[INFO] [stdout] 79  |         T: rand::Rng + rand::CryptoRng + rand_core::CryptoRng,
[INFO] [stdout]     |                                        ++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: rand_core::RngCore` is not satisfied
[INFO] [stdout]    --> src/crypto/sig.rs:81:61
[INFO] [stdout]     |
[INFO] [stdout] 81  |         Ed25519SecretKey(ed25519_dalek::SecretKey::generate(csprng))
[INFO] [stdout]     |                          ---------------------------------- ^^^^^^ the trait `rand_core::RngCore` is not implemented for `T`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `SecretKey::generate`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.1/src/secret.rs:169:24
[INFO] [stdout]     |
[INFO] [stdout] 169 |         T: CryptoRng + RngCore,
[INFO] [stdout]     |                        ^^^^^^^ required by this bound in `SecretKey::generate`
[INFO] [stdout] help: consider further restricting this bound
[INFO] [stdout]     |
[INFO] [stdout] 79  |         T: rand::Rng + rand::CryptoRng + rand_core::RngCore,
[INFO] [stdout]     |                                        ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `verify` found for struct `ed25519_dalek::PublicKey` in the current scope
[INFO] [stdout]    --> src/crypto/sig.rs:111:14
[INFO] [stdout]     |
[INFO] [stdout] 111 |             .verify(msg, &sig.0)
[INFO] [stdout]     |              ^^^^^^ this is an associated function, not a method
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/signature-1.5.0/src/verifier.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn verify(&self, msg: &[u8], signature: &S) -> Result<(), Error>;
[INFO] [stdout]     |        ------ the method is available for `ed25519_dalek::PublicKey` here
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout] note: the candidate is defined in the trait `SignatureScheme`
[INFO] [stdout]    --> src/crypto/sig.rs:23:5
[INFO] [stdout]     |
[INFO] [stdout] 23  | /     fn verify(public_key: &Self::PublicKey, msg: &[u8], sig: &Self::Signature)
[INFO] [stdout] 24  | |         -> Result<(), Error>;
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: use associated function syntax instead
[INFO] [stdout]     |
[INFO] [stdout] 109 |         ed25519_dalek::PublicKey::verify(msg, &sig.0)
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: disambiguate the associated function for the candidate
[INFO] [stdout]     |
[INFO] [stdout] 109 ~         <ed25519_dalek::PublicKey as SignatureScheme>::verify(public_key
[INFO] [stdout] 110 +             .0, msg, &sig.0)
[INFO] [stdout]     |
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use ed25519_dalek::Verifier;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:20:47
[INFO] [stdout]    |
[INFO] [stdout] 20 |         crate::error::Error::SerdeError(other.description().to_string())
[INFO] [stdout]    |                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:41:26
[INFO] [stdout]    |
[INFO] [stdout] 41 |         f.write_str(self.description())
[INFO] [stdout]    |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `molasses` due to 4 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1464e9b6c1a055f6e31d15a792bdd6937bef7d52776028e8fc7d38fbc162097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1464e9b6c1a055f6e31d15a792bdd6937bef7d52776028e8fc7d38fbc162097e", kill_on_drop: false }`
[INFO] [stdout] 1464e9b6c1a055f6e31d15a792bdd6937bef7d52776028e8fc7d38fbc162097e