Dec 18 17:22:00.229 INFO checking copperline-0.3.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 17:22:00.229 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/copperline/0.3.0:/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 17:22:00.496 INFO [stdout] 490e315ab5eac094d2757e5f301db3bf5c8b52844001174319263c54c408ac39
Dec 18 17:22:00.498 INFO running `"docker" "start" "-a" "490e315ab5eac094d2757e5f301db3bf5c8b52844001174319263c54c408ac39"`
Dec 18 17:22:01.649 INFO [stderr]     Checking strcursor v0.1.0
Dec 18 17:22:01.996 INFO [stderr]     Checking copperline v0.3.0 (/opt/crater/workdir)
Dec 18 17:22:02.429 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 18 17:22:02.429 INFO [stderr]   --> src/lib.rs:61:26
Dec 18 17:22:02.429 INFO [stderr]    |
Dec 18 17:22:02.429 INFO [stderr] 61 |                 for _ in (0..len) {
Dec 18 17:22:02.429 INFO [stderr]    |                          ^^^^^^^^ help: remove these parentheses
Dec 18 17:22:02.429 INFO [stderr]    |
Dec 18 17:22:02.429 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 17:22:02.429 INFO [stderr] 
Dec 18 17:22:02.429 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 18 17:22:02.429 INFO [stderr]    --> src/lib.rs:109:26
Dec 18 17:22:02.429 INFO [stderr]     |
Dec 18 17:22:02.429 INFO [stderr] 109 |                 for _ in (0..len) {
Dec 18 17:22:02.429 INFO [stderr]     |                          ^^^^^^^^ help: remove these parentheses
Dec 18 17:22:02.429 INFO [stderr] 
Dec 18 17:22:02.487 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 18 17:22:02.487 INFO [stderr]   --> src/lib.rs:61:26
Dec 18 17:22:02.487 INFO [stderr]    |
Dec 18 17:22:02.487 INFO [stderr] 61 |                 for _ in (0..len) {
Dec 18 17:22:02.487 INFO [stderr]    |                          ^^^^^^^^ help: remove these parentheses
Dec 18 17:22:02.487 INFO [stderr]    |
Dec 18 17:22:02.487 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 17:22:02.487 INFO [stderr] 
Dec 18 17:22:02.487 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 18 17:22:02.487 INFO [stderr]    --> src/lib.rs:109:26
Dec 18 17:22:02.487 INFO [stderr]     |
Dec 18 17:22:02.487 INFO [stderr] 109 |                 for _ in (0..len) {
Dec 18 17:22:02.487 INFO [stderr]     |                          ^^^^^^^^ help: remove these parentheses
Dec 18 17:22:02.487 INFO [stderr] 
Dec 18 17:22:02.597 INFO [stderr] warning: unused import: `RawDecoder`
Dec 18 17:22:02.597 INFO [stderr]  --> src/parser.rs:3:36
Dec 18 17:22:02.597 INFO [stderr]   |
Dec 18 17:22:02.597 INFO [stderr] 3 | use encoding::types::{EncodingRef, RawDecoder};
Dec 18 17:22:02.597 INFO [stderr]   |                                    ^^^^^^^^^^
Dec 18 17:22:02.597 INFO [stderr]   |
Dec 18 17:22:02.597 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 17:22:02.597 INFO [stderr] 
Dec 18 17:22:02.644 INFO [stderr] warning: unused import: `RawDecoder`
Dec 18 17:22:02.644 INFO [stderr]  --> src/parser.rs:3:36
Dec 18 17:22:02.644 INFO [stderr]   |
Dec 18 17:22:02.644 INFO [stderr] 3 | use encoding::types::{EncodingRef, RawDecoder};
Dec 18 17:22:02.644 INFO [stderr]   |                                    ^^^^^^^^^^
Dec 18 17:22:02.644 INFO [stderr]   |
Dec 18 17:22:02.644 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 17:22:02.644 INFO [stderr] 
Dec 18 17:22:02.682 INFO [stderr] warning: method is never used: `reset`
Dec 18 17:22:02.683 INFO [stderr]   --> src/buffer.rs:29:5
Dec 18 17:22:02.683 INFO [stderr]    |
Dec 18 17:22:02.683 INFO [stderr] 29 |     pub fn reset(&mut self) {
Dec 18 17:22:02.683 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:22:02.683 INFO [stderr]    |
Dec 18 17:22:02.683 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 17:22:02.683 INFO [stderr] 
Dec 18 17:22:02.684 INFO [stderr] warning: method is never used: `pop`
Dec 18 17:22:02.684 INFO [stderr]   --> src/history.rs:67:5
Dec 18 17:22:02.684 INFO [stderr]    |
Dec 18 17:22:02.684 INFO [stderr] 67 |     pub fn pop(&mut self) -> Option<String> {
Dec 18 17:22:02.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:22:02.684 INFO [stderr] 
Dec 18 17:22:02.698 INFO [stderr] warning: method is never used: `reset`
Dec 18 17:22:02.698 INFO [stderr]   --> src/buffer.rs:29:5
Dec 18 17:22:02.698 INFO [stderr]    |
Dec 18 17:22:02.698 INFO [stderr] 29 |     pub fn reset(&mut self) {
Dec 18 17:22:02.698 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:22:02.698 INFO [stderr]    |
Dec 18 17:22:02.698 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 17:22:02.698 INFO [stderr] 
Dec 18 17:22:02.698 INFO [stderr] warning: method is never used: `pop`
Dec 18 17:22:02.698 INFO [stderr]   --> src/history.rs:67:5
Dec 18 17:22:02.698 INFO [stderr]    |
Dec 18 17:22:02.698 INFO [stderr] 67 |     pub fn pop(&mut self) -> Option<String> {
Dec 18 17:22:02.698 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:22:02.698 INFO [stderr] 
Dec 18 17:22:03.176 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
Dec 18 17:22:03.597 INFO running `"docker" "inspect" "490e315ab5eac094d2757e5f301db3bf5c8b52844001174319263c54c408ac39"`
Dec 18 17:22:03.736 INFO running `"docker" "rm" "-f" "490e315ab5eac094d2757e5f301db3bf5c8b52844001174319263c54c408ac39"`
Dec 18 17:22:03.928 INFO [stdout] 490e315ab5eac094d2757e5f301db3bf5c8b52844001174319263c54c408ac39