[INFO] fetching crate melpow 0.1.1...
[INFO] checking melpow-0.1.1 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate melpow 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate melpow 0.1.1 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate melpow 0.1.1
[INFO] finished tweaking crates.io crate melpow 0.1.1
[INFO] tweaked toml for crates.io crate melpow 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate melpow 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ed25519 v1.4.1
[INFO] [stderr]   Downloaded tmelcrypt v0.2.4
[INFO] [stderr]   Downloaded stdcode v0.1.7
[INFO] [stderr]   Downloaded derive_arbitrary v1.1.0
[INFO] [stderr]   Downloaded signature v1.5.0
[INFO] [stderr]   Downloaded arbitrary v1.1.0
[INFO] [stderr]   Downloaded arrayvec v0.7.2
[INFO] [stderr]   Downloaded base32 v0.4.0
[INFO] [stderr]   Downloaded crypto-common v0.1.3
[INFO] [stderr]   Downloaded zeroize v1.3.0
[INFO] [stderr]   Downloaded serde-big-array v0.3.3
[INFO] [stderr]   Downloaded blake3 v1.3.1
[INFO] [stderr]   Downloaded syn v1.0.92
[INFO] [stderr]   Downloaded libc v0.2.125
[INFO] [stderr]   Downloaded curve25519-dalek v3.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4e4063f724d9f995759e0d39a4ca5749bcab4b351da5c343057105d746b645e
[INFO] running `Command { std: "docker" "start" "-a" "f4e4063f724d9f995759e0d39a4ca5749bcab4b351da5c343057105d746b645e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4e4063f724d9f995759e0d39a4ca5749bcab4b351da5c343057105d746b645e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e4063f724d9f995759e0d39a4ca5749bcab4b351da5c343057105d746b645e", kill_on_drop: false }`
[INFO] [stdout] f4e4063f724d9f995759e0d39a4ca5749bcab4b351da5c343057105d746b645e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac02d3df02f0d6c0fd874f06792d8be54de064f741a13d78f0a0ecbb8d992459
[INFO] running `Command { std: "docker" "start" "-a" "ac02d3df02f0d6c0fd874f06792d8be54de064f741a13d78f0a0ecbb8d992459", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking signature v1.5.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking ed25519 v1.4.1
[INFO] [stderr]    Compiling blake3 v1.3.1
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling derive_arbitrary v1.1.0
[INFO] [stderr]    Compiling zeroize_derive v1.3.2
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking arbitrary v1.1.0
[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde-big-array v0.3.3
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking stdcode v0.1.7
[INFO] [stderr]     Checking tmelcrypt v0.2.4
[INFO] [stderr]     Checking melpow v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.deref()` on a double reference, which returns `&H` instead of dereferencing the inner type
[INFO] [stdout]   --> src/hash.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         self.deref().hash(b, k)
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.deref()` on a double reference, which returns `&H` instead of dereferencing the inner type
[INFO] [stdout]   --> src/hash.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         self.deref().hash(b, k)
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.33s
[INFO] running `Command { std: "docker" "inspect" "ac02d3df02f0d6c0fd874f06792d8be54de064f741a13d78f0a0ecbb8d992459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac02d3df02f0d6c0fd874f06792d8be54de064f741a13d78f0a0ecbb8d992459", kill_on_drop: false }`
[INFO] [stdout] ac02d3df02f0d6c0fd874f06792d8be54de064f741a13d78f0a0ecbb8d992459