Sep 10 14:16:51.402 INFO checking mvcc-0.0.1 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 14:16:51.402 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 14:16:51.402 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-7/try#3a2610c2a16575649896925631bf8cec4f4b1961:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 14:16:51.528 INFO blam! 9c6c333c35e33cd60ccd7b054d8cf72c5a2771a842dfe8f54d034f318f81d14e
Sep 10 14:16:51.530 INFO running `"docker" "start" "-a" "9c6c333c35e33cd60ccd7b054d8cf72c5a2771a842dfe8f54d034f318f81d14e"`
Sep 10 14:16:52.571 INFO kablam! usermod: no changes
Sep 10 14:16:52.616 INFO kablam!     Checking crossbeam-utils v0.3.2
Sep 10 14:16:52.616 INFO kablam!     Checking coco v0.2.1
Sep 10 14:16:52.616 INFO kablam!     Checking bincode v0.9.2
Sep 10 14:16:52.983 INFO kablam!     Checking crossbeam-epoch v0.4.3
Sep 10 14:16:53.136 INFO kablam!     Checking historian v3.0.4
Sep 10 14:16:53.527 INFO kablam!     Checking pagecache v0.4.5
Sep 10 14:16:56.481 INFO kablam!     Checking sled v0.15.17
Sep 10 14:16:57.823 INFO kablam!     Checking mvcc v0.0.1 (file:///source)
Sep 10 14:16:58.740 INFO kablam! warning: type alias is never used: `Delta`
Sep 10 14:16:58.740 INFO kablam!   --> src/lib.rs:58:1
Sep 10 14:16:58.740 INFO kablam!    |
Sep 10 14:16:58.740 INFO kablam! 58 | type Delta = Vec<u8>;
Sep 10 14:16:58.740 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:16:58.740 INFO kablam!    |
Sep 10 14:16:58.740 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 14:16:58.740 INFO kablam! 
Sep 10 14:16:58.754 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 14:16:58.754 INFO kablam!    --> src/db.rs:222:17
Sep 10 14:16:58.754 INFO kablam!     |
Sep 10 14:16:58.754 INFO kablam! 222 |                 self.mvcc.insert(k.clone(), Chain::new(chain));
Sep 10 14:16:58.754 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:16:58.754 INFO kablam!     |
Sep 10 14:16:58.754 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 14:16:58.754 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 14:16:58.754 INFO kablam! 
Sep 10 14:16:58.754 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 14:16:58.754 INFO kablam!    --> src/db.rs:225:17
Sep 10 14:16:58.754 INFO kablam!     |
Sep 10 14:16:58.754 INFO kablam! 225 |                 self.mvcc.insert(k.clone(), Chain::default());
Sep 10 14:16:58.754 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:16:58.754 INFO kablam!     |
Sep 10 14:16:58.754 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 14:16:58.754 INFO kablam! 
Sep 10 14:16:58.797 INFO kablam! warning: type alias is never used: `Delta`
Sep 10 14:16:58.797 INFO kablam!   --> src/lib.rs:58:1
Sep 10 14:16:58.797 INFO kablam!    |
Sep 10 14:16:58.797 INFO kablam! 58 | type Delta = Vec<u8>;
Sep 10 14:16:58.797 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:16:58.797 INFO kablam!    |
Sep 10 14:16:58.797 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 14:16:58.797 INFO kablam! 
Sep 10 14:16:58.808 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 14:16:58.808 INFO kablam!    --> src/db.rs:222:17
Sep 10 14:16:58.808 INFO kablam!     |
Sep 10 14:16:58.808 INFO kablam! 222 |                 self.mvcc.insert(k.clone(), Chain::new(chain));
Sep 10 14:16:58.808 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:16:58.808 INFO kablam!     |
Sep 10 14:16:58.808 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 14:16:58.808 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 14:16:58.808 INFO kablam! 
Sep 10 14:16:58.808 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 14:16:58.808 INFO kablam!    --> src/db.rs:225:17
Sep 10 14:16:58.808 INFO kablam!     |
Sep 10 14:16:58.808 INFO kablam! 225 |                 self.mvcc.insert(k.clone(), Chain::default());
Sep 10 14:16:58.808 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:16:58.808 INFO kablam!     |
Sep 10 14:16:58.808 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 14:16:58.808 INFO kablam! 
Sep 10 14:16:58.867 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.28s
Sep 10 14:16:58.868 INFO kablam! su: No module specific data is present
Sep 10 14:16:59.484 INFO running `"docker" "rm" "-f" "9c6c333c35e33cd60ccd7b054d8cf72c5a2771a842dfe8f54d034f318f81d14e"`
Sep 10 14:16:59.608 INFO blam! 9c6c333c35e33cd60ccd7b054d8cf72c5a2771a842dfe8f54d034f318f81d14e