[INFO] fetching crate shs_core 0.3.0...
[INFO] testing shs_core-0.3.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate shs_core 0.3.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate shs_core 0.3.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shs_core 0.3.0
[INFO] finished tweaking crates.io crate shs_core 0.3.0
[INFO] tweaked toml for crates.io crate shs_core 0.3.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec7cb90b650d03e95467cc7a9d1880bd644bcde97a5ebf18735a12aded1c12aa
[INFO] running `Command { std: "docker" "start" "-a" "ec7cb90b650d03e95467cc7a9d1880bd644bcde97a5ebf18735a12aded1c12aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec7cb90b650d03e95467cc7a9d1880bd644bcde97a5ebf18735a12aded1c12aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec7cb90b650d03e95467cc7a9d1880bd644bcde97a5ebf18735a12aded1c12aa", kill_on_drop: false }`
[INFO] [stdout] ec7cb90b650d03e95467cc7a9d1880bd644bcde97a5ebf18735a12aded1c12aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95ec668b8ffc45701f68d63c21a52f377dbdb5442f9b025432184a0ded578cf7
[INFO] running `Command { std: "docker" "start" "-a" "95ec668b8ffc45701f68d63c21a52f377dbdb5442f9b025432184a0ded578cf7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling signature v1.4.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling libsodium-sys v0.2.7
[INFO] [stderr]    Compiling ed25519 v1.3.0
[INFO] [stderr]    Compiling sodiumoxide v0.2.7
[INFO] [stderr]    Compiling ssb-crypto v0.1.4
[INFO] [stderr]    Compiling shs_core v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `from_slice` found for struct `Signature` in the current scope
[INFO] [stdout]    --> src/messages.rs:306:56
[INFO] [stdout]     |
[INFO] [stdout] 306 |                 client_sig: ClientSignature(Signature::from_slice(&sig_bytes)?),
[INFO] [stdout]     |                                                        ^^^^^^^^^^ function or associated item not found in `Signature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0616]: field `0` of struct `Signature` is private
[INFO] [stdout]    --> src/messages.rs:352:43
[INFO] [stdout]     |
[INFO] [stdout] 352 |         ServerAccept(secretbox::seal(&sig.0[..], &zero_nonce(), &key))
[INFO] [stdout]     |                                           ^ private field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_slice` found for struct `Signature` in the current scope
[INFO] [stdout]    --> src/messages.rs:386:40
[INFO] [stdout]     |
[INFO] [stdout] 386 |             ServerSignature(Signature::from_slice(&v)
[INFO] [stdout]     |                                        ^^^^^^^^^^ function or associated item not found in `Signature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0616.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shs_core` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "95ec668b8ffc45701f68d63c21a52f377dbdb5442f9b025432184a0ded578cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ec668b8ffc45701f68d63c21a52f377dbdb5442f9b025432184a0ded578cf7", kill_on_drop: false }`
[INFO] [stdout] 95ec668b8ffc45701f68d63c21a52f377dbdb5442f9b025432184a0ded578cf7