Sep 10 06:55:38.034 INFO checking variable_size_byte_writer-0.1.5 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 06:55:38.034 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 06:55:38.034 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 06:55:38.195 INFO blam! c7a01756484178b2926a16e5eae349351a8bfcdba4af25ced03c2bc50b54e54a
Sep 10 06:55:38.196 INFO running `"docker" "start" "-a" "c7a01756484178b2926a16e5eae349351a8bfcdba4af25ced03c2bc50b54e54a"`
Sep 10 06:55:38.876 INFO kablam! usermod: no changes
Sep 10 06:55:38.896 INFO kablam!     Checking typenum_loops v0.2.0
Sep 10 06:55:39.052 INFO kablam!     Checking variable_size_byte_writer v0.1.5 (file:///source)
Sep 10 06:55:39.503 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:55:39.503 INFO kablam!   --> benches/benches.rs:11:9
Sep 10 06:55:39.503 INFO kablam!    |
Sep 10 06:55:39.503 INFO kablam! 11 |     let mut target = std::io::Cursor::new(vec![]);
Sep 10 06:55:39.503 INFO kablam!    |         ----^^^^^^
Sep 10 06:55:39.503 INFO kablam!    |         |
Sep 10 06:55:39.503 INFO kablam!    |         help: remove this `mut`
Sep 10 06:55:39.503 INFO kablam!    |
Sep 10 06:55:39.503 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 06:55:39.503 INFO kablam! 
Sep 10 06:55:39.505 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:55:39.505 INFO kablam!   --> benches/benches.rs:32:9
Sep 10 06:55:39.505 INFO kablam!    |
Sep 10 06:55:39.505 INFO kablam! 32 |     let mut target = std::io::Cursor::new(vec![]);
Sep 10 06:55:39.505 INFO kablam!    |         ----^^^^^^
Sep 10 06:55:39.505 INFO kablam!    |         |
Sep 10 06:55:39.505 INFO kablam!    |         help: remove this `mut`
Sep 10 06:55:39.505 INFO kablam! 
Sep 10 06:55:39.506 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:55:39.506 INFO kablam!   --> benches/benches.rs:53:9
Sep 10 06:55:39.506 INFO kablam!    |
Sep 10 06:55:39.506 INFO kablam! 53 |     let mut target = std::io::Cursor::new(vec![]);
Sep 10 06:55:39.506 INFO kablam!    |         ----^^^^^^
Sep 10 06:55:39.506 INFO kablam!    |         |
Sep 10 06:55:39.507 INFO kablam!    |         help: remove this `mut`
Sep 10 06:55:39.507 INFO kablam! 
Sep 10 06:55:39.545 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Sep 10 06:55:39.547 INFO kablam! su: No module specific data is present
Sep 10 06:55:40.172 INFO running `"docker" "rm" "-f" "c7a01756484178b2926a16e5eae349351a8bfcdba4af25ced03c2bc50b54e54a"`
Sep 10 06:55:40.232 INFO blam! c7a01756484178b2926a16e5eae349351a8bfcdba4af25ced03c2bc50b54e54a