[INFO] crate terminal-linked-hash-map 0.1.0 is already in cache
[INFO] extracting crate terminal-linked-hash-map 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/terminal-linked-hash-map/0.1.0
[INFO] extracting crate terminal-linked-hash-map 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/terminal-linked-hash-map/0.1.0
[INFO] validating manifest of terminal-linked-hash-map-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of terminal-linked-hash-map-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing terminal-linked-hash-map-0.1.0
[INFO] finished frobbing terminal-linked-hash-map-0.1.0
[INFO] frobbed toml for terminal-linked-hash-map-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/terminal-linked-hash-map/0.1.0/Cargo.toml
[INFO] started frobbing terminal-linked-hash-map-0.1.0
[INFO] finished frobbing terminal-linked-hash-map-0.1.0
[INFO] frobbed toml for terminal-linked-hash-map-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/terminal-linked-hash-map/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing terminal-linked-hash-map-0.1.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/terminal-linked-hash-map/0.1.0:/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=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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 90768e64694f34d4db381a2479b7e14d28c8c92e5cdee4c66e7fea5a61736504
[INFO] running `"docker" "start" "-a" "90768e64694f34d4db381a2479b7e14d28c8c92e5cdee4c66e7fea5a61736504"`
[INFO] [stderr]    Compiling terminal-linked-hash-map v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "90768e64694f34d4db381a2479b7e14d28c8c92e5cdee4c66e7fea5a61736504"`
[INFO] running `"docker" "rm" "-f" "90768e64694f34d4db381a2479b7e14d28c8c92e5cdee4c66e7fea5a61736504"`
[INFO] [stdout] 90768e64694f34d4db381a2479b7e14d28c8c92e5cdee4c66e7fea5a61736504
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/terminal-linked-hash-map/0.1.0:/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=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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ca5874b8bea48d97743ca01cecd567c7bc858215bdfe656336e95e8b71d1e1d6
[INFO] running `"docker" "start" "-a" "ca5874b8bea48d97743ca01cecd567c7bc858215bdfe656336e95e8b71d1e1d6"`
[INFO] [stderr]    Compiling terminal-linked-hash-map v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:31:19
[INFO] [stderr]    |
[INFO] [stderr] 31 | #![cfg_attr(test, feature(test))]
[INFO] [stderr]    |                   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: extern crate `terminal_linked_hash_map` is private, and cannot be re-exported (error E0365), consider declaring with `pub`
[INFO] [stderr]  --> tests/test.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub use terminal_linked_hash_map as linked_hash_map;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(pub_use_of_private_extern_crate)] on by default
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[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 `terminal-linked-hash-map`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ca5874b8bea48d97743ca01cecd567c7bc858215bdfe656336e95e8b71d1e1d6"`
[INFO] running `"docker" "rm" "-f" "ca5874b8bea48d97743ca01cecd567c7bc858215bdfe656336e95e8b71d1e1d6"`
[INFO] [stdout] ca5874b8bea48d97743ca01cecd567c7bc858215bdfe656336e95e8b71d1e1d6