[INFO] crate rustc-serialize 0.3.24 is already in cache
[INFO] extracting crate rustc-serialize 0.3.24 into work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/rustc-serialize/0.3.24
[INFO] extracting crate rustc-serialize 0.3.24 into work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/rustc-serialize/0.3.24
[INFO] validating manifest of rustc-serialize-0.3.24 on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rustc-serialize-0.3.24 on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rustc-serialize-0.3.24
[INFO] finished frobbing rustc-serialize-0.3.24
[INFO] frobbed toml for rustc-serialize-0.3.24 written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/rustc-serialize/0.3.24/Cargo.toml
[INFO] started frobbing rustc-serialize-0.3.24
[INFO] finished frobbing rustc-serialize-0.3.24
[INFO] frobbed toml for rustc-serialize-0.3.24 written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/rustc-serialize/0.3.24/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rustc-serialize-0.3.24 against try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-3/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/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" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a4688b71da20b040b01bde10910131a0551cc7f013a0577ad10ffbf5b92e544c
[INFO] running `"docker" "start" "-a" "a4688b71da20b040b01bde10910131a0551cc7f013a0577ad10ffbf5b92e544c"`
[INFO] [stderr]     Checking rustc-serialize v0.3.24 (/opt/crater/workdir)
[INFO] [stderr] error: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]     --> src/json.rs:3513:34
[INFO] [stderr]      |
[INFO] [stderr] 3513 |             let trimmed = source.trim_left_matches(' ');
[INFO] [stderr]      |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]     --> src/lib.rs:43:24
[INFO] [stderr]      |
[INFO] [stderr] 43   | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]      |                        ^^^^^^^^
[INFO] [stderr]      = note: #[deny(deprecated)] implied by #[deny(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rustc-serialize`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a4688b71da20b040b01bde10910131a0551cc7f013a0577ad10ffbf5b92e544c"`
[INFO] running `"docker" "rm" "-f" "a4688b71da20b040b01bde10910131a0551cc7f013a0577ad10ffbf5b92e544c"`
[INFO] [stdout] a4688b71da20b040b01bde10910131a0551cc7f013a0577ad10ffbf5b92e544c