Sep 19 23:43:49.109 INFO checking iota-pow-box-0.0.2 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 23:43:49.109 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 23:43:49.109 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-5/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 23:43:49.265 INFO blam! 2117714ef46417b8980edda366701d5ada14e023e3978dac3e685ad75ec7bdf5
Sep 19 23:43:49.268 INFO running `"docker" "start" "-a" "2117714ef46417b8980edda366701d5ada14e023e3978dac3e685ad75ec7bdf5"`
Sep 19 23:43:50.251 INFO kablam! usermod: no changes
Sep 19 23:43:50.701 INFO kablam!     Checking iota-lib-rs v0.0.25
Sep 19 23:43:56.859 INFO kablam! error[E0635]: unknown feature `rust_2018_idioms`
Sep 19 23:43:56.859 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/iota-lib-rs-0.0.25/src/lib.rs:3:12
Sep 19 23:43:56.859 INFO kablam!   |
Sep 19 23:43:56.859 INFO kablam! 3 | #![feature(rust_2018_idioms)]
Sep 19 23:43:56.859 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 19 23:43:56.859 INFO kablam! 
Sep 19 23:43:56.991 INFO kablam! error: aborting due to previous error
Sep 19 23:43:56.991 INFO kablam! 
Sep 19 23:43:56.991 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 19 23:43:57.022 INFO kablam! error: Could not compile `iota-lib-rs`.
Sep 19 23:43:57.022 INFO kablam! 
Sep 19 23:43:57.022 INFO kablam! To learn more, run the command again with --verbose.
Sep 19 23:43:57.031 INFO kablam! su: No module specific data is present
Sep 19 23:43:58.121 INFO running `"docker" "rm" "-f" "2117714ef46417b8980edda366701d5ada14e023e3978dac3e685ad75ec7bdf5"`
Sep 19 23:43:58.415 INFO blam! 2117714ef46417b8980edda366701d5ada14e023e3978dac3e685ad75ec7bdf5