[INFO] crate mimir 0.3.5 is already in cache
[INFO] extracting crate mimir 0.3.5 into work/ex/beta-1.38-1/sources/1.37.0/reg/mimir/0.3.5
[INFO] extracting crate mimir 0.3.5 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mimir/0.3.5
[INFO] validating manifest of mimir-0.3.5 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mimir-0.3.5 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mimir-0.3.5
[INFO] finished frobbing mimir-0.3.5
[INFO] frobbed toml for mimir-0.3.5 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mimir/0.3.5/Cargo.toml
[INFO] started frobbing mimir-0.3.5
[INFO] finished frobbing mimir-0.3.5
[INFO] frobbed toml for mimir-0.3.5 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mimir/0.3.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mimir-0.3.5 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mimir/0.3.5:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 501d03bab4fb64a4336571ee4a047d2e367f91f1c02aea74acc5124cce203cd4
[INFO] running `"docker" "start" "-a" "501d03bab4fb64a4336571ee4a047d2e367f91f1c02aea74acc5124cce203cd4"`
[INFO] [stderr]    Compiling hex-slice v0.1.4
[INFO] [stderr]    Compiling mimir v0.3.5 (/opt/crater/workdir)
[INFO] [stderr]    Compiling slog-try v0.2.0
[INFO] [stderr]    Compiling getset v0.0.7
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr] warning: use of deprecated item 'gcc::Build': crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stderr]   --> build.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut build = gcc::Build::new();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stderr]   --> build.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut build = gcc::Build::new();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/connection/mod.rs:582:9
[INFO] [stderr]     |
[INFO] [stderr] 582 |           /// TODO: Fix object_type when Object is implemented fully.
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 583 | /         try_dpi!(
[INFO] [stderr] 584 | |             externs::dpiConn_newVar(
[INFO] [stderr] 585 | |                 self.inner,
[INFO] [stderr] 586 | |                 oracle_type_num,
[INFO] [stderr] ...   |
[INFO] [stderr] 597 | |             ErrorKind::Connection("dpiConn_newVar".to_string())
[INFO] [stderr] 598 | |         )
[INFO] [stderr]     | |_________- rustdoc does not generate documentation for expressions
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/statement/mod.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |           /// TODO: Test this when Var is complete.
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 59 | /         try_dpi!(
[INFO] [stderr] 60 | |             externs::dpiStmt_bindByName(self.inner, name_s.ptr(), name_s.len(), var.inner()),
[INFO] [stderr] 61 | |             Ok(()),
[INFO] [stderr] 62 | |             ErrorKind::Statement("dpiStmt_bindByName".to_string())
[INFO] [stderr] 63 | |         )
[INFO] [stderr]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![feature(ptr_internals, try_from, untagged_unions)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `mimir`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "501d03bab4fb64a4336571ee4a047d2e367f91f1c02aea74acc5124cce203cd4"`
[INFO] running `"docker" "rm" "-f" "501d03bab4fb64a4336571ee4a047d2e367f91f1c02aea74acc5124cce203cd4"`
[INFO] [stdout] 501d03bab4fb64a4336571ee4a047d2e367f91f1c02aea74acc5124cce203cd4