Sep 20 04:46:29.243 INFO checking atomic_cell-0.1.0 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 04:46:29.244 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 04:46:29.244 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-2/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 20 04:46:29.391 INFO blam! eb7283dc3ba0a6fac89932e23acbd43a9878d413f9d1f48e8d28b1e4a330e3af
Sep 20 04:46:29.393 INFO running `"docker" "start" "-a" "eb7283dc3ba0a6fac89932e23acbd43a9878d413f9d1f48e8d28b1e4a330e3af"`
Sep 20 04:46:30.451 INFO kablam! usermod: no changes
Sep 20 04:46:30.520 INFO kablam!     Checking vec_map v0.3.0
Sep 20 04:46:30.520 INFO kablam!     Checking atomic_cell v0.1.0 (/source)
Sep 20 04:46:30.927 INFO kablam! warning: variable does not need to be mutable
Sep 20 04:46:30.927 INFO kablam!    --> src/lib.rs:394:43
Sep 20 04:46:30.927 INFO kablam!     |
Sep 20 04:46:30.927 INFO kablam! 394 |         let old_ptr = self.with_lock_mut(|mut ptr : &mut*mut T| {
Sep 20 04:46:30.927 INFO kablam!     |                                           ----^^^
Sep 20 04:46:30.927 INFO kablam!     |                                           |
Sep 20 04:46:30.927 INFO kablam!     |                                           help: remove this `mut`
Sep 20 04:46:30.927 INFO kablam!     |
Sep 20 04:46:30.927 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 20 04:46:30.927 INFO kablam! 
Sep 20 04:46:30.927 INFO kablam! error[E0635]: unknown feature `catch_panic`
Sep 20 04:46:30.927 INFO kablam!  --> src/lib.rs:2:12
Sep 20 04:46:30.927 INFO kablam!   |
Sep 20 04:46:30.927 INFO kablam! 2 | #![feature(catch_panic)] // For testing
Sep 20 04:46:30.927 INFO kablam!   |            ^^^^^^^^^^^
Sep 20 04:46:30.927 INFO kablam! 
Sep 20 04:46:30.939 INFO kablam! error: aborting due to previous error
Sep 20 04:46:30.939 INFO kablam! 
Sep 20 04:46:30.939 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 20 04:46:30.947 INFO kablam! error: Could not compile `atomic_cell`.
Sep 20 04:46:30.947 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 20 04:46:31.097 INFO kablam! error: build failed
Sep 20 04:46:31.098 INFO kablam! su: No module specific data is present
Sep 20 04:46:31.901 INFO running `"docker" "rm" "-f" "eb7283dc3ba0a6fac89932e23acbd43a9878d413f9d1f48e8d28b1e4a330e3af"`
Sep 20 04:46:31.978 INFO blam! eb7283dc3ba0a6fac89932e23acbd43a9878d413f9d1f48e8d28b1e4a330e3af