[INFO] fetching crate mmr-crypto-primitives 0.2.1...
[INFO] checking mmr-crypto-primitives-0.2.1 against master#19a647d6d8f6ead984d7b431c4a8376e02c543e6 for pr-114559-1
[INFO] extracting crate mmr-crypto-primitives 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mmr-crypto-primitives 0.2.1 on toolchain 19a647d6d8f6ead984d7b431c4a8376e02c543e6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19a647d6d8f6ead984d7b431c4a8376e02c543e6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mmr-crypto-primitives 0.2.1
[INFO] finished tweaking crates.io crate mmr-crypto-primitives 0.2.1
[INFO] tweaked toml for crates.io crate mmr-crypto-primitives 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19a647d6d8f6ead984d7b431c4a8376e02c543e6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19a647d6d8f6ead984d7b431c4a8376e02c543e6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colored v2.0.4
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+19a647d6d8f6ead984d7b431c4a8376e02c543e6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee05995b7114b5f5dc3a0d823e1d3cc87ac39168580ef56b725764255a4578af
[INFO] running `Command { std: "docker" "start" "-a" "ee05995b7114b5f5dc3a0d823e1d3cc87ac39168580ef56b725764255a4578af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee05995b7114b5f5dc3a0d823e1d3cc87ac39168580ef56b725764255a4578af", kill_on_drop: false }`
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[INFO] [stdout] ee05995b7114b5f5dc3a0d823e1d3cc87ac39168580ef56b725764255a4578af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+19a647d6d8f6ead984d7b431c4a8376e02c543e6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5112a6ebbb358a5816e3369847fd255f1a183217d5481f9cbcf953f93af94b45
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[INFO] [stderr]     Checking mmr-crypto-primitives v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/merkle_tree/mod.rs:463:32
[INFO] [stdout]     |
[INFO] [stdout] 463 |         let new_leaf = new_leaf.borrow();
[INFO] [stdout]     |                                ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `<P as merkle_tree::Config>::Leaf` does not implement `Borrow`, so calling `borrow` on `&<P as merkle_tree::Config>::Leaf` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]     Checking ark-ed-on-bls12-381 v0.3.0
[INFO] [stderr]     Checking ark-bls12-377 v0.3.0
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[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/merkle_tree/mod.rs:463:32
[INFO] [stdout]     |
[INFO] [stdout] 463 |         let new_leaf = new_leaf.borrow();
[INFO] [stdout]     |                                ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `<P as merkle_tree::Config>::Leaf` does not implement `Borrow`, so calling `borrow` on `&<P as merkle_tree::Config>::Leaf` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.10s
[INFO] running `Command { std: "docker" "inspect" "5112a6ebbb358a5816e3369847fd255f1a183217d5481f9cbcf953f93af94b45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5112a6ebbb358a5816e3369847fd255f1a183217d5481f9cbcf953f93af94b45", kill_on_drop: false }`
[INFO] [stdout] 5112a6ebbb358a5816e3369847fd255f1a183217d5481f9cbcf953f93af94b45