Dec 17 20:17:49.752 INFO checking maeln/Oneliner against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 20:17:49.752 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/maeln/Oneliner:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 20:17:50.286 INFO [stdout] 4c928e46719360296793800919d0832e75e67797bee002fe13c751c778100316
Dec 17 20:17:50.287 INFO running `"docker" "start" "-a" "4c928e46719360296793800919d0832e75e67797bee002fe13c751c778100316"`
Dec 17 20:17:52.260 INFO [stderr]     Checking rand v0.6.1
Dec 17 20:17:52.260 INFO [stderr]     Checking crossbeam-channel v0.3.2
Dec 17 20:17:54.010 INFO [stderr]     Checking crossbeam v0.5.0
Dec 17 20:17:55.931 INFO [stderr]     Checking oneliner v0.1.0 (/opt/crater/workdir)
Dec 17 20:17:57.545 INFO [stderr] warning: variant is never constructed: `SerializeError`
Dec 17 20:17:57.546 INFO [stderr]   --> src/serialize/errors.rs:21:5
Dec 17 20:17:57.546 INFO [stderr]    |
Dec 17 20:17:57.546 INFO [stderr] 21 |     SerializeError,
Dec 17 20:17:57.547 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 17 20:17:57.547 INFO [stderr]    |
Dec 17 20:17:57.547 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 20:17:57.548 INFO [stderr] 
Dec 17 20:17:57.548 INFO [stderr] warning: variant is never constructed: `UnserializeError`
Dec 17 20:17:57.548 INFO [stderr]   --> src/serialize/errors.rs:22:5
Dec 17 20:17:57.549 INFO [stderr]    |
Dec 17 20:17:57.549 INFO [stderr] 22 |     UnserializeError,
Dec 17 20:17:57.549 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 20:17:57.549 INFO [stderr] 
Dec 17 20:17:57.550 INFO [stderr] warning: method is never used: `new_serialize`
Dec 17 20:17:57.550 INFO [stderr]   --> src/serialize/errors.rs:36:5
Dec 17 20:17:57.550 INFO [stderr]    |
Dec 17 20:17:57.550 INFO [stderr] 36 |     pub fn new_serialize() -> Error {
Dec 17 20:17:57.551 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 20:17:57.551 INFO [stderr] 
Dec 17 20:17:57.551 INFO [stderr] warning: method is never used: `new_unserialize`
Dec 17 20:17:57.552 INFO [stderr]   --> src/serialize/errors.rs:40:5
Dec 17 20:17:57.552 INFO [stderr]    |
Dec 17 20:17:57.552 INFO [stderr] 40 |     pub fn new_unserialize() -> Error {
Dec 17 20:17:57.553 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 20:17:57.553 INFO [stderr] 
Dec 17 20:17:57.553 INFO [stderr] warning: method is never used: `into_cause`
Dec 17 20:17:57.553 INFO [stderr]   --> src/serialize/errors.rs:60:5
Dec 17 20:17:57.554 INFO [stderr]    |
Dec 17 20:17:57.554 INFO [stderr] 60 |     pub fn into_cause(self) -> Option<Box<StdError + Sync + Send>> {
Dec 17 20:17:57.554 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 20:17:57.554 INFO [stderr] 
Dec 17 20:17:57.580 INFO [stderr] warning: variant is never constructed: `SerializeError`
Dec 17 20:17:57.580 INFO [stderr]   --> src/serialize/errors.rs:21:5
Dec 17 20:17:57.581 INFO [stderr]    |
Dec 17 20:17:57.581 INFO [stderr] 21 |     SerializeError,
Dec 17 20:17:57.581 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 17 20:17:57.581 INFO [stderr]    |
Dec 17 20:17:57.581 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 20:17:57.581 INFO [stderr] 
Dec 17 20:17:57.581 INFO [stderr] warning: variant is never constructed: `UnserializeError`
Dec 17 20:17:57.581 INFO [stderr]   --> src/serialize/errors.rs:22:5
Dec 17 20:17:57.581 INFO [stderr]    |
Dec 17 20:17:57.581 INFO [stderr] 22 |     UnserializeError,
Dec 17 20:17:57.581 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 20:17:57.581 INFO [stderr] 
Dec 17 20:17:57.581 INFO [stderr] warning: method is never used: `new_serialize`
Dec 17 20:17:57.581 INFO [stderr]   --> src/serialize/errors.rs:36:5
Dec 17 20:17:57.581 INFO [stderr]    |
Dec 17 20:17:57.581 INFO [stderr] 36 |     pub fn new_serialize() -> Error {
Dec 17 20:17:57.581 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 20:17:57.581 INFO [stderr] 
Dec 17 20:17:57.581 INFO [stderr] warning: method is never used: `new_unserialize`
Dec 17 20:17:57.581 INFO [stderr]   --> src/serialize/errors.rs:40:5
Dec 17 20:17:57.581 INFO [stderr]    |
Dec 17 20:17:57.581 INFO [stderr] 40 |     pub fn new_unserialize() -> Error {
Dec 17 20:17:57.581 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 20:17:57.581 INFO [stderr] 
Dec 17 20:17:57.581 INFO [stderr] warning: method is never used: `into_cause`
Dec 17 20:17:57.582 INFO [stderr]   --> src/serialize/errors.rs:60:5
Dec 17 20:17:57.582 INFO [stderr]    |
Dec 17 20:17:57.582 INFO [stderr] 60 |     pub fn into_cause(self) -> Option<Box<StdError + Sync + Send>> {
Dec 17 20:17:57.582 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 20:17:57.582 INFO [stderr] 
Dec 17 20:17:57.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.58s
Dec 17 20:17:59.050 INFO running `"docker" "inspect" "4c928e46719360296793800919d0832e75e67797bee002fe13c751c778100316"`
Dec 17 20:17:59.354 INFO running `"docker" "rm" "-f" "4c928e46719360296793800919d0832e75e67797bee002fe13c751c778100316"`
Dec 17 20:17:59.686 INFO [stdout] 4c928e46719360296793800919d0832e75e67797bee002fe13c751c778100316