[INFO] fetching crate solana_libra_proptest_helpers 0.0.1-sol5...
[INFO] checking solana_libra_proptest_helpers-0.0.1-sol5 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate solana_libra_proptest_helpers 0.0.1-sol5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate solana_libra_proptest_helpers 0.0.1-sol5 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", 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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6bcdea6503b6d615f2d26b80c1adc584334aa46fd53ee0494cdf1ccbfb6a8ca
[INFO] running `Command { std: "docker" "start" "-a" "d6bcdea6503b6d615f2d26b80c1adc584334aa46fd53ee0494cdf1ccbfb6a8ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6bcdea6503b6d615f2d26b80c1adc584334aa46fd53ee0494cdf1ccbfb6a8ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6bcdea6503b6d615f2d26b80c1adc584334aa46fd53ee0494cdf1ccbfb6a8ca", kill_on_drop: false }`
[INFO] [stdout] d6bcdea6503b6d615f2d26b80c1adc584334aa46fd53ee0494cdf1ccbfb6a8ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72bb9eb3bc96ffe41df6fc93634eade711eb61b96dc52a40819c4c0ddb980ee7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "72bb9eb3bc96ffe41df6fc93634eade711eb61b96dc52a40819c4c0ddb980ee7", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.6
[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]     |                       ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.30s
[INFO] running `Command { std: "docker" "inspect" "72bb9eb3bc96ffe41df6fc93634eade711eb61b96dc52a40819c4c0ddb980ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72bb9eb3bc96ffe41df6fc93634eade711eb61b96dc52a40819c4c0ddb980ee7", kill_on_drop: false }`
[INFO] [stdout] 72bb9eb3bc96ffe41df6fc93634eade711eb61b96dc52a40819c4c0ddb980ee7