Sep 20 04:38:56.136 INFO checking backoff-0.1.2 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 04:38:56.136 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 04:38:56.136 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-0/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 04:38:56.555 INFO blam! 52a88831758df67ae9130a053ba123632d527ed9613eae8196ab64c5263f3646
Sep 20 04:38:56.567 INFO running `"docker" "start" "-a" "52a88831758df67ae9130a053ba123632d527ed9613eae8196ab64c5263f3646"`
Sep 20 04:38:57.899 INFO kablam! usermod: no changes
Sep 20 04:38:58.111 INFO kablam!     Checking backoff v0.1.2 (/source)
Sep 20 04:38:58.114 INFO kablam!     Checking reqwest v0.6.2
Sep 20 04:39:00.783 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Sep 20 04:39:00.783 INFO kablam!   --> examples/permanent_error.rs:10:9
Sep 20 04:39:00.783 INFO kablam!    |
Sep 20 04:39:00.783 INFO kablam! 10 | #[allow(needless_pass_by_value)]
Sep 20 04:39:00.783 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^
Sep 20 04:39:00.783 INFO kablam!    |
Sep 20 04:39:00.783 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Sep 20 04:39:00.783 INFO kablam! 
Sep 20 04:39:02.751 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
Sep 20 04:39:02.755 INFO kablam! su: No module specific data is present
Sep 20 04:39:03.334 INFO running `"docker" "rm" "-f" "52a88831758df67ae9130a053ba123632d527ed9613eae8196ab64c5263f3646"`
Sep 20 04:39:03.474 INFO blam! 52a88831758df67ae9130a053ba123632d527ed9613eae8196ab64c5263f3646