[INFO] fetching crate ledger-polkadot 0.2.0...
[INFO] checking ledger-polkadot-0.2.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate ledger-polkadot 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ledger-polkadot 0.2.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ledger-polkadot 0.2.0
[INFO] finished tweaking crates.io crate ledger-polkadot 0.2.0
[INFO] tweaked toml for crates.io crate ledger-polkadot 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36f371cfb24b97d83b878b5fd1dfe72e476a20e375b5a8b5e643cb772aa5aa25
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "36f371cfb24b97d83b878b5fd1dfe72e476a20e375b5a8b5e643cb772aa5aa25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36f371cfb24b97d83b878b5fd1dfe72e476a20e375b5a8b5e643cb772aa5aa25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36f371cfb24b97d83b878b5fd1dfe72e476a20e375b5a8b5e643cb772aa5aa25", kill_on_drop: false }`
[INFO] [stdout] 36f371cfb24b97d83b878b5fd1dfe72e476a20e375b5a8b5e643cb772aa5aa25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1927b2c43c1935a0f73697e34f83d92055ee9f6980a1ee60f0e5a2f0e99c44ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1927b2c43c1935a0f73697e34f83d92055ee9f6980a1ee60f0e5a2f0e99c44ef", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking nix v0.13.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling hidapi v0.5.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking ledger v0.2.5
[INFO] [stderr]     Checking ledger-polkadot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ed25519-dalek v1.0.0
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `ed25519_dalek::Signature` in the current scope
[INFO] [stdout]    --> tests/integration_test.rs:116:40
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let signature = Signature::from_bytes(&sig).unwrap();
[INFO] [stdout]     |                                        ^^^^^^^^^^ function or associated item not found in `ed25519_dalek::Signature`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 31  | use crate::ed25519_dalek::ed25519::signature::Signature;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let signature = Signature::to_bytes(&sig).unwrap();
[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]    --> tests/integration_test.rs:119:32
[INFO] [stdout]     |
[INFO] [stdout] 119 |             assert!(public_key.verify(&blob, &signature).is_ok());
[INFO] [stdout]     |                                ^^^^^^ method not found in `ed25519_dalek::PublicKey`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 31  | use crate::ed25519_dalek::Verifier;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ledger-polkadot`.
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "1927b2c43c1935a0f73697e34f83d92055ee9f6980a1ee60f0e5a2f0e99c44ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1927b2c43c1935a0f73697e34f83d92055ee9f6980a1ee60f0e5a2f0e99c44ef", kill_on_drop: false }`
[INFO] [stdout] 1927b2c43c1935a0f73697e34f83d92055ee9f6980a1ee60f0e5a2f0e99c44ef
