[INFO] fetching crate tusk_data 0.0.1...
[INFO] extracting crate tusk_data 0.0.1 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/tusk_data/0.0.1
[INFO] extracting crate tusk_data 0.0.1 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/tusk_data/0.0.1
[INFO] validating manifest of tusk_data-0.0.1 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tusk_data-0.0.1 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tusk_data-0.0.1
[INFO] finished frobbing tusk_data-0.0.1
[INFO] frobbed toml for tusk_data-0.0.1 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/tusk_data/0.0.1/Cargo.toml
[INFO] started frobbing tusk_data-0.0.1
[INFO] finished frobbing tusk_data-0.0.1
[INFO] frobbed toml for tusk_data-0.0.1 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/tusk_data/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking tusk_data-0.0.1 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/tusk_data/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d2f6a60e611b7bb42470a91e5c294d7d9525b5be6e74da1f8f3bac4787acd349
[INFO] running `"docker" "start" "-a" "d2f6a60e611b7bb42470a91e5c294d7d9525b5be6e74da1f8f3bac4787acd349"`
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking tusk_data v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr] warning: unused variable: `vo`
[INFO] [stderr]   --> src/metrics/mod.rs:36:56
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn join(&self, rhs: &Self, terms: Vec<String>, vo: ops::Ops) -> Option<Self> {
[INFO] [stderr]    |                                                        ^^ help: consider prefixing with an underscore: `_vo`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vo`
[INFO] [stderr]   --> src/metrics/mod.rs:36:56
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn join(&self, rhs: &Self, terms: Vec<String>, vo: ops::Ops) -> Option<Self> {
[INFO] [stderr]    |                                                        ^^ help: consider prefixing with an underscore: `_vo`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_metadata_builder`
[INFO] [stderr]    --> src/metadata/mod.rs:221:5
[INFO] [stderr]     |
[INFO] [stderr] 221 |     fn test_metadata_builder() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_metadata_filter`
[INFO] [stderr]    --> src/metadata/mod.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn test_metadata_filter() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> benches/metrics.rs:11:50
[INFO] [stderr]    |
[INFO] [stderr] 11 |         c.bench_function("matching metadata", move |b| {
[INFO] [stderr]    |                                                     ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.87s
[INFO] running `"docker" "inspect" "d2f6a60e611b7bb42470a91e5c294d7d9525b5be6e74da1f8f3bac4787acd349"`
[INFO] running `"docker" "rm" "-f" "d2f6a60e611b7bb42470a91e5c294d7d9525b5be6e74da1f8f3bac4787acd349"`
[INFO] [stdout] d2f6a60e611b7bb42470a91e5c294d7d9525b5be6e74da1f8f3bac4787acd349