Dec 05 15:04:10.487 INFO checking copperline-0.3.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 15:04:10.487 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 15:04:10.729 INFO [stdout] b7d247b191fa534cdc58c8f62a67e3be56b64e6f40a31b5d276a2a778cc541d3
Dec 05 15:04:10.731 INFO running `"docker" "start" "-a" "b7d247b191fa534cdc58c8f62a67e3be56b64e6f40a31b5d276a2a778cc541d3"`
Dec 05 15:04:11.308 INFO [stderr] usermod: no changes
Dec 05 15:04:11.361 INFO [stderr]     Checking strcursor v0.1.0
Dec 05 15:04:11.883 INFO [stderr]     Checking copperline v0.3.0 (/source)
Dec 05 15:04:12.735 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 05 15:04:12.735 INFO [stderr]   --> src/lib.rs:61:26
Dec 05 15:04:12.735 INFO [stderr]    |
Dec 05 15:04:12.735 INFO [stderr] 61 |                 for _ in (0..len) {
Dec 05 15:04:12.735 INFO [stderr]    |                          ^^^^^^^^ help: remove these parentheses
Dec 05 15:04:12.735 INFO [stderr]    |
Dec 05 15:04:12.735 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 05 15:04:12.735 INFO [stderr] 
Dec 05 15:04:12.735 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 05 15:04:12.736 INFO [stderr]    --> src/lib.rs:109:26
Dec 05 15:04:12.736 INFO [stderr]     |
Dec 05 15:04:12.736 INFO [stderr] 109 |                 for _ in (0..len) {
Dec 05 15:04:12.736 INFO [stderr]     |                          ^^^^^^^^ help: remove these parentheses
Dec 05 15:04:12.736 INFO [stderr] 
Dec 05 15:04:12.911 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 05 15:04:12.911 INFO [stderr]   --> src/lib.rs:61:26
Dec 05 15:04:12.911 INFO [stderr]    |
Dec 05 15:04:12.911 INFO [stderr] 61 |                 for _ in (0..len) {
Dec 05 15:04:12.911 INFO [stderr]    |                          ^^^^^^^^ help: remove these parentheses
Dec 05 15:04:12.911 INFO [stderr]    |
Dec 05 15:04:12.911 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 05 15:04:12.911 INFO [stderr] 
Dec 05 15:04:12.911 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 05 15:04:12.911 INFO [stderr]    --> src/lib.rs:109:26
Dec 05 15:04:12.911 INFO [stderr]     |
Dec 05 15:04:12.911 INFO [stderr] 109 |                 for _ in (0..len) {
Dec 05 15:04:12.911 INFO [stderr]     |                          ^^^^^^^^ help: remove these parentheses
Dec 05 15:04:12.911 INFO [stderr] 
Dec 05 15:04:13.025 INFO [stderr] warning: unused import: `RawDecoder`
Dec 05 15:04:13.025 INFO [stderr]  --> src/parser.rs:3:36
Dec 05 15:04:13.025 INFO [stderr]   |
Dec 05 15:04:13.025 INFO [stderr] 3 | use encoding::types::{EncodingRef, RawDecoder};
Dec 05 15:04:13.025 INFO [stderr]   |                                    ^^^^^^^^^^
Dec 05 15:04:13.025 INFO [stderr]   |
Dec 05 15:04:13.025 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 15:04:13.025 INFO [stderr] 
Dec 05 15:04:13.031 INFO [stderr] warning: unused import: `RawDecoder`
Dec 05 15:04:13.031 INFO [stderr]  --> src/parser.rs:3:36
Dec 05 15:04:13.031 INFO [stderr]   |
Dec 05 15:04:13.031 INFO [stderr] 3 | use encoding::types::{EncodingRef, RawDecoder};
Dec 05 15:04:13.031 INFO [stderr]   |                                    ^^^^^^^^^^
Dec 05 15:04:13.031 INFO [stderr]   |
Dec 05 15:04:13.031 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 15:04:13.031 INFO [stderr] 
Dec 05 15:04:13.083 INFO [stderr] warning: method is never used: `reset`
Dec 05 15:04:13.083 INFO [stderr]   --> src/buffer.rs:29:5
Dec 05 15:04:13.083 INFO [stderr]    |
Dec 05 15:04:13.083 INFO [stderr] 29 |     pub fn reset(&mut self) {
Dec 05 15:04:13.083 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:04:13.083 INFO [stderr]    |
Dec 05 15:04:13.083 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 15:04:13.083 INFO [stderr] 
Dec 05 15:04:13.083 INFO [stderr] warning: method is never used: `pop`
Dec 05 15:04:13.083 INFO [stderr]   --> src/history.rs:67:5
Dec 05 15:04:13.083 INFO [stderr]    |
Dec 05 15:04:13.083 INFO [stderr] 67 |     pub fn pop(&mut self) -> Option<String> {
Dec 05 15:04:13.083 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:04:13.083 INFO [stderr] 
Dec 05 15:04:13.095 INFO [stderr] warning: method is never used: `reset`
Dec 05 15:04:13.095 INFO [stderr]   --> src/buffer.rs:29:5
Dec 05 15:04:13.095 INFO [stderr]    |
Dec 05 15:04:13.095 INFO [stderr] 29 |     pub fn reset(&mut self) {
Dec 05 15:04:13.095 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:04:13.095 INFO [stderr]    |
Dec 05 15:04:13.095 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 15:04:13.095 INFO [stderr] 
Dec 05 15:04:13.095 INFO [stderr] warning: method is never used: `pop`
Dec 05 15:04:13.095 INFO [stderr]   --> src/history.rs:67:5
Dec 05 15:04:13.095 INFO [stderr]    |
Dec 05 15:04:13.095 INFO [stderr] 67 |     pub fn pop(&mut self) -> Option<String> {
Dec 05 15:04:13.095 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:04:13.095 INFO [stderr] 
Dec 05 15:04:14.360 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
Dec 05 15:04:14.374 INFO [stderr] su: No module specific data is present
Dec 05 15:04:15.555 INFO running `"docker" "inspect" "b7d247b191fa534cdc58c8f62a67e3be56b64e6f40a31b5d276a2a778cc541d3"`
Dec 05 15:04:15.759 INFO running `"docker" "rm" "-f" "b7d247b191fa534cdc58c8f62a67e3be56b64e6f40a31b5d276a2a778cc541d3"`
Dec 05 15:04:15.930 INFO [stdout] b7d247b191fa534cdc58c8f62a67e3be56b64e6f40a31b5d276a2a778cc541d3