Dec 18 14:58:34.246 INFO checking immutable-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:58:34.246 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/reg/immutable/0.1.1:/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 18 14:58:34.413 INFO [stdout] 158b1bc7482fab2a1e49978d128c57205d949fbb4d75081f1dfcc90bf1c7a1d5
Dec 18 14:58:34.414 INFO running `"docker" "start" "-a" "158b1bc7482fab2a1e49978d128c57205d949fbb4d75081f1dfcc90bf1c7a1d5"`
Dec 18 14:58:34.893 INFO [stderr]     Checking immutable v0.1.1 (/opt/crater/workdir)
Dec 18 14:58:35.106 INFO [stderr] warning: unused import: `std::vec::IntoIter`
Dec 18 14:58:35.135 INFO [stderr]  --> src/list.rs:7:5
Dec 18 14:58:35.151 INFO [stderr]   |
Dec 18 14:58:35.152 INFO [stderr] 7 | use std::vec::IntoIter;
Dec 18 14:58:35.152 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 14:58:35.152 INFO [stderr]   |
Dec 18 14:58:35.152 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 14:58:35.152 INFO [stderr] 
Dec 18 14:58:35.152 INFO [stderr] warning: unused import: `std::vec::IntoIter`
Dec 18 14:58:35.152 INFO [stderr]  --> src/list.rs:7:5
Dec 18 14:58:35.152 INFO [stderr]   |
Dec 18 14:58:35.152 INFO [stderr] 7 | use std::vec::IntoIter;
Dec 18 14:58:35.152 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 14:58:35.152 INFO [stderr]   |
Dec 18 14:58:35.152 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 14:58:35.152 INFO [stderr] 
Dec 18 14:58:35.201 INFO [stderr] warning: unused attribute
Dec 18 14:58:35.201 INFO [stderr]  --> src/list.rs:9:1
Dec 18 14:58:35.201 INFO [stderr]   |
Dec 18 14:58:35.201 INFO [stderr] 9 | #[macro_escape]
Dec 18 14:58:35.201 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 18 14:58:35.201 INFO [stderr]   |
Dec 18 14:58:35.201 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 18 14:58:35.201 INFO [stderr] 
Dec 18 14:58:35.201 INFO [stderr] warning: unused attribute
Dec 18 14:58:35.201 INFO [stderr]   --> src/tree/binary_tree.rs:11:1
Dec 18 14:58:35.201 INFO [stderr]    |
Dec 18 14:58:35.201 INFO [stderr] 11 | #[macro_escape]
Dec 18 14:58:35.201 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 18 14:58:35.201 INFO [stderr] 
Dec 18 14:58:35.392 INFO [stderr] warning: unused attribute
Dec 18 14:58:35.392 INFO [stderr]  --> src/list.rs:9:1
Dec 18 14:58:35.392 INFO [stderr]   |
Dec 18 14:58:35.396 INFO [stderr] 9 | #[macro_escape]
Dec 18 14:58:35.396 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 18 14:58:35.396 INFO [stderr]   |
Dec 18 14:58:35.396 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 18 14:58:35.396 INFO [stderr] 
Dec 18 14:58:35.396 INFO [stderr] warning: unused attribute
Dec 18 14:58:35.396 INFO [stderr]   --> src/tree/binary_tree.rs:11:1
Dec 18 14:58:35.396 INFO [stderr]    |
Dec 18 14:58:35.396 INFO [stderr] 11 | #[macro_escape]
Dec 18 14:58:35.396 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 18 14:58:35.396 INFO [stderr] 
Dec 18 14:58:35.425 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Dec 18 14:58:35.743 INFO running `"docker" "inspect" "158b1bc7482fab2a1e49978d128c57205d949fbb4d75081f1dfcc90bf1c7a1d5"`
Dec 18 14:58:35.834 INFO running `"docker" "rm" "-f" "158b1bc7482fab2a1e49978d128c57205d949fbb4d75081f1dfcc90bf1c7a1d5"`
Dec 18 14:58:35.963 INFO [stdout] 158b1bc7482fab2a1e49978d128c57205d949fbb4d75081f1dfcc90bf1c7a1d5