Oct 13 07:01:23.754 INFO checking tusk_data-0.0.1 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 07:01:23.754 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 13 07:01:24.212 INFO blam! 31417153f8a990853048399f7a9fc3d4b65ab63dbd997e70c26206aff981ecf2
Oct 13 07:01:24.231 INFO running `"docker" "start" "-a" "31417153f8a990853048399f7a9fc3d4b65ab63dbd997e70c26206aff981ecf2"`
Oct 13 07:01:25.652 INFO kablam! usermod: no changes
Oct 13 07:01:25.894 INFO kablam!     Checking serde_yaml v0.8.5
Oct 13 07:01:25.901 INFO kablam!     Checking uuid v0.7.1
Oct 13 07:01:25.917 INFO kablam!     Checking simplelog v0.5.3
Oct 13 07:01:28.050 INFO kablam!     Checking tusk_data v0.0.1 (/source)
Oct 13 07:01:28.186 INFO kablam!     Checking criterion v0.2.5
Oct 13 07:01:30.880 INFO kablam! warning: unused variable: `vo`
Oct 13 07:01:30.880 INFO kablam!   --> src/metrics/mod.rs:36:56
Oct 13 07:01:30.880 INFO kablam!    |
Oct 13 07:01:30.880 INFO kablam! 36 |     pub fn join(&self, rhs: &Self, terms: Vec<String>, vo: ops::Ops) -> Option<Self> {
Oct 13 07:01:30.880 INFO kablam!    |                                                        ^^ help: consider using `_vo` instead
Oct 13 07:01:30.880 INFO kablam!    |
Oct 13 07:01:30.880 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 07:01:30.880 INFO kablam! 
Oct 13 07:01:40.918 INFO kablam! warning: unused variable: `vo`
Oct 13 07:01:40.918 INFO kablam!   --> src/metrics/mod.rs:36:56
Oct 13 07:01:40.918 INFO kablam!    |
Oct 13 07:01:40.918 INFO kablam! 36 |     pub fn join(&self, rhs: &Self, terms: Vec<String>, vo: ops::Ops) -> Option<Self> {
Oct 13 07:01:40.918 INFO kablam!    |                                                        ^^ help: consider using `_vo` instead
Oct 13 07:01:40.918 INFO kablam!    |
Oct 13 07:01:40.918 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 07:01:40.918 INFO kablam! 
Oct 13 07:01:41.116 INFO kablam! warning: function is never used: `test_metadata_builder`
Oct 13 07:01:41.116 INFO kablam!    --> src/metadata/mod.rs:221:5
Oct 13 07:01:41.116 INFO kablam!     |
Oct 13 07:01:41.116 INFO kablam! 221 |     fn test_metadata_builder() {
Oct 13 07:01:41.116 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 07:01:41.116 INFO kablam!     |
Oct 13 07:01:41.116 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 13 07:01:41.116 INFO kablam! 
Oct 13 07:01:41.116 INFO kablam! warning: function is never used: `test_metadata_filter`
Oct 13 07:01:41.116 INFO kablam!    --> src/metadata/mod.rs:236:5
Oct 13 07:01:41.116 INFO kablam!     |
Oct 13 07:01:41.116 INFO kablam! 236 |     fn test_metadata_filter() {
Oct 13 07:01:41.116 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 07:01:41.116 INFO kablam! 
Oct 13 07:01:44.068 INFO kablam! warning: unused variable: `b`
Oct 13 07:01:44.068 INFO kablam!   --> benches/metrics.rs:11:50
Oct 13 07:01:44.068 INFO kablam!    |
Oct 13 07:01:44.068 INFO kablam! 11 |         c.bench_function("matching metadata", move |b| {
Oct 13 07:01:44.068 INFO kablam!    |                                                     ^ help: consider using `_b` instead
Oct 13 07:01:44.068 INFO kablam!    |
Oct 13 07:01:44.068 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 07:01:44.068 INFO kablam! 
Oct 13 07:01:44.680 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 19.00s
Oct 13 07:01:44.689 INFO kablam! su: No module specific data is present
Oct 13 07:01:45.298 INFO running `"docker" "rm" "-f" "31417153f8a990853048399f7a9fc3d4b65ab63dbd997e70c26206aff981ecf2"`
Oct 13 07:01:45.613 INFO blam! 31417153f8a990853048399f7a9fc3d4b65ab63dbd997e70c26206aff981ecf2