[INFO] crate extended-collections 0.5.0 is already in cache
[INFO] extracting crate extended-collections 0.5.0 into work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/extended-collections/0.5.0
[INFO] extracting crate extended-collections 0.5.0 into work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/extended-collections/0.5.0
[INFO] validating manifest of extended-collections-0.5.0 on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of extended-collections-0.5.0 on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing extended-collections-0.5.0
[INFO] finished frobbing extended-collections-0.5.0
[INFO] frobbed toml for extended-collections-0.5.0 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/extended-collections/0.5.0/Cargo.toml
[INFO] started frobbing extended-collections-0.5.0
[INFO] finished frobbing extended-collections-0.5.0
[INFO] frobbed toml for extended-collections-0.5.0 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/extended-collections/0.5.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking extended-collections-0.5.0 against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-7/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/extended-collections/0.5.0:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5e6796fb54135bf078bd9126336bd3260c100e776a4c8fd2a96d422bfeeda6f5
[INFO] running `"docker" "start" "-a" "5e6796fb54135bf078bd9126336bd3260c100e776a4c8fd2a96d422bfeeda6f5"`
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking probabilistic-collections v0.3.0
[INFO] [stderr]     Checking crossbeam-epoch v0.2.0
[INFO] [stderr]     Checking extended-collections v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/bp_tree/pager.rs:46:48
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Error::IOError(ref error) => error.cause(),
[INFO] [stderr]    |                                                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/bp_tree/pager.rs:47:51
[INFO] [stderr]    |
[INFO] [stderr] 47 |             Error::SerdeError(ref error) => error.cause(),
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lsm_tree/mod.rs:46:48
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Error::IOError(ref error) => error.cause(),
[INFO] [stderr]    |                                                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lsm_tree/mod.rs:47:51
[INFO] [stderr]    |
[INFO] [stderr] 47 |             Error::SerdeError(ref error) => error.cause(),
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/bp_tree/pager.rs:46:48
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Error::IOError(ref error) => error.cause(),
[INFO] [stderr]    |                                                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/bp_tree/pager.rs:47:51
[INFO] [stderr]    |
[INFO] [stderr] 47 |             Error::SerdeError(ref error) => error.cause(),
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lsm_tree/mod.rs:46:48
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Error::IOError(ref error) => error.cause(),
[INFO] [stderr]    |                                                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lsm_tree/mod.rs:47:51
[INFO] [stderr]    |
[INFO] [stderr] 47 |             Error::SerdeError(ref error) => error.cause(),
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.35s
[INFO] running `"docker" "inspect" "5e6796fb54135bf078bd9126336bd3260c100e776a4c8fd2a96d422bfeeda6f5"`
[INFO] running `"docker" "rm" "-f" "5e6796fb54135bf078bd9126336bd3260c100e776a4c8fd2a96d422bfeeda6f5"`
[INFO] [stdout] 5e6796fb54135bf078bd9126336bd3260c100e776a4c8fd2a96d422bfeeda6f5