[INFO] fetching crate solana_libra_proptest_helpers 0.0.1-sol5...
[INFO] checking solana_libra_proptest_helpers-0.0.1-sol5 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate solana_libra_proptest_helpers 0.0.1-sol5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate solana_libra_proptest_helpers 0.0.1-sol5 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate solana_libra_proptest_helpers 0.0.1-sol5
[INFO] finished tweaking crates.io crate solana_libra_proptest_helpers 0.0.1-sol5
[INFO] tweaked toml for crates.io crate solana_libra_proptest_helpers 0.0.1-sol5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]       Adding autocfg v0.1.8 (latest: v1.3.0)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded crossbeam v0.7.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ec38163fd1a2041b82094a7cd936be0200e4c65a17527f4e9c1f375eac01a5b
[INFO] running `Command { std: "docker" "start" "-a" "7ec38163fd1a2041b82094a7cd936be0200e4c65a17527f4e9c1f375eac01a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ec38163fd1a2041b82094a7cd936be0200e4c65a17527f4e9c1f375eac01a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec38163fd1a2041b82094a7cd936be0200e4c65a17527f4e9c1f375eac01a5b", kill_on_drop: false }`
[INFO] [stdout] 7ec38163fd1a2041b82094a7cd936be0200e4c65a17527f4e9c1f375eac01a5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d61a63118e7c571388c61ac2a1b9dda392316c0c4e1a237d4f36d8dc43c316f9
[INFO] running `Command { std: "docker" "start" "-a" "d61a63118e7c571388c61ac2a1b9dda392316c0c4e1a237d4f36d8dc43c316f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
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[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
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[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking fastrand v2.1.1
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[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
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[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
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[INFO] [stderr]     Checking tempfile v3.12.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stderr]    Compiling proptest-derive v0.1.2
[INFO] [stderr]     Checking solana_libra_proptest_helpers v0.0.1-sol5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/unit_tests/repeat_vec_tests.rs:136:23
[INFO] [stdout]     |
[INFO] [stdout] 136 |         Self::next as (fn() -> Self)
[INFO] [stdout]     |                       ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -         Self::next as (fn() -> Self)
[INFO] [stdout] 136 +         Self::next as fn() -> Self
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/unit_tests/repeat_vec_tests.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         mem::replace(&mut self.items, new_items);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let _ = mem::replace(&mut self.items, new_items);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.13s
[INFO] running `Command { std: "docker" "inspect" "d61a63118e7c571388c61ac2a1b9dda392316c0c4e1a237d4f36d8dc43c316f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d61a63118e7c571388c61ac2a1b9dda392316c0c4e1a237d4f36d8dc43c316f9", kill_on_drop: false }`
[INFO] [stdout] d61a63118e7c571388c61ac2a1b9dda392316c0c4e1a237d4f36d8dc43c316f9