[INFO] fetching crate polkadot-ckb-merkle-mountain-range 0.8.1...
[INFO] testing polkadot-ckb-merkle-mountain-range-0.8.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate polkadot-ckb-merkle-mountain-range 0.8.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate polkadot-ckb-merkle-mountain-range 0.8.1
[INFO] finished tweaking crates.io crate polkadot-ckb-merkle-mountain-range 0.8.1
[INFO] tweaked toml for crates.io crate polkadot-ckb-merkle-mountain-range 0.8.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate polkadot-ckb-merkle-mountain-range 0.8.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling polkadot-ckb-merkle-mountain-range v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.82s
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[INFO] [stdout] 93186f9d8b6ff3e66a344a1efe47c5283065d8b2d4b8dba4e44c532585e0a7df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f94745e78e077487239f847834c78531b117f5d6eac992c95b4a905f5b08c65
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[INFO] [stdout] error[E0599]: the method `gen_range` exists for struct `ThreadRng`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/tests/test_mmr.rs:280:32
[INFO] [stdout]     |
[INFO] [stdout] 280 |         let leaves_count = rng.gen_range(1..count - 1);
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.8.5/src/rngs/thread.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 | pub struct ThreadRng {
[INFO] [stdout]     | -------------------- doesn't satisfy `ThreadRng: proptest::prelude::RngCore` or `ThreadRng: proptest::prelude::Rng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `ThreadRng: proptest::prelude::RngCore`
[INFO] [stdout]             which is required by `ThreadRng: proptest::prelude::Rng`
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Rng` which provides `gen_range` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   1 + use rand::Rng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `gen_range` exists for struct `ThreadRng`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/tests/test_node_mmr.rs:347:32
[INFO] [stdout]     |
[INFO] [stdout] 347 |         let leaves_count = rng.gen_range(1..count - 1);
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.8.5/src/rngs/thread.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 | pub struct ThreadRng {
[INFO] [stdout]     | -------------------- doesn't satisfy `ThreadRng: proptest::prelude::RngCore` or `ThreadRng: proptest::prelude::Rng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `ThreadRng: proptest::prelude::RngCore`
[INFO] [stdout]             which is required by `ThreadRng: proptest::prelude::Rng`
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Rng` which provides `gen_range` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   1 + use rand::Rng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `polkadot-ckb-merkle-mountain-range` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3f94745e78e077487239f847834c78531b117f5d6eac992c95b4a905f5b08c65", kill_on_drop: false }`
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[INFO] [stdout] 3f94745e78e077487239f847834c78531b117f5d6eac992c95b4a905f5b08c65
