Dec 18 11:44:28.395 INFO checking rustc-serialize-0.3.24 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 11:44:28.395 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/rustc-serialize/0.3.24:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 11:44:28.582 INFO [stdout] d65788c579afdd927117cd4f08a4e439036d38cfa1a9a9e4fe5295540adcbb9c
Dec 18 11:44:28.584 INFO running `"docker" "start" "-a" "d65788c579afdd927117cd4f08a4e439036d38cfa1a9a9e4fe5295540adcbb9c"`
Dec 18 11:44:29.504 INFO [stderr]     Checking rustc-serialize v0.3.24 (/opt/crater/workdir)
Dec 18 11:44:33.256 INFO [stderr] error: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
Dec 18 11:44:33.256 INFO [stderr]     --> src/json.rs:3513:34
Dec 18 11:44:33.256 INFO [stderr]      |
Dec 18 11:44:33.256 INFO [stderr] 3513 |             let trimmed = source.trim_left_matches(' ');
Dec 18 11:44:33.256 INFO [stderr]      |                                  ^^^^^^^^^^^^^^^^^
Dec 18 11:44:33.256 INFO [stderr]      |
Dec 18 11:44:33.256 INFO [stderr] note: lint level defined here
Dec 18 11:44:33.256 INFO [stderr]     --> src/lib.rs:43:24
Dec 18 11:44:33.256 INFO [stderr]      |
Dec 18 11:44:33.256 INFO [stderr] 43   | #![cfg_attr(test, deny(warnings))]
Dec 18 11:44:33.256 INFO [stderr]      |                        ^^^^^^^^
Dec 18 11:44:33.256 INFO [stderr]      = note: #[deny(deprecated)] implied by #[deny(warnings)]
Dec 18 11:44:33.256 INFO [stderr] 
Dec 18 11:44:33.498 INFO [stderr] error: aborting due to previous error
Dec 18 11:44:33.498 INFO [stderr] 
Dec 18 11:44:33.525 INFO [stderr] error: Could not compile `rustc-serialize`.
Dec 18 11:44:33.525 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 11:44:33.768 INFO [stderr] error: build failed
Dec 18 11:44:34.142 INFO running `"docker" "inspect" "d65788c579afdd927117cd4f08a4e439036d38cfa1a9a9e4fe5295540adcbb9c"`
Dec 18 11:44:34.295 INFO running `"docker" "rm" "-f" "d65788c579afdd927117cd4f08a4e439036d38cfa1a9a9e4fe5295540adcbb9c"`
Dec 18 11:44:34.396 INFO [stdout] d65788c579afdd927117cd4f08a4e439036d38cfa1a9a9e4fe5295540adcbb9c