Aug 31 03:45:30.180 INFO checking nathankleyn/jsonvalid against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 03:45:30.180 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 03:45:30.180 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-2/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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=500" "-e" "CMD=cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 03:45:30.378 INFO blam! 86bcac487c8728057ce201f5fced16897b0f80713590146709d9841ac54a6d59
Aug 31 03:45:30.380 INFO running `"docker" "start" "-a" "86bcac487c8728057ce201f5fced16897b0f80713590146709d9841ac54a6d59"`
Aug 31 03:45:31.208 INFO kablam!    Compiling rustc-demangle v0.1.6
Aug 31 03:45:31.239 INFO kablam!    Compiling semver v0.8.0
Aug 31 03:45:31.259 INFO kablam!    Compiling serde_json v1.0.9
Aug 31 03:45:31.259 INFO kablam!     Checking clap v2.30.0
Aug 31 03:45:31.815 INFO kablam!     Checking backtrace v0.3.5
Aug 31 03:45:33.101 INFO kablam!     Checking error-chain v0.11.0
Aug 31 03:45:39.709 INFO kablam!    Compiling cargo_metadata v0.3.3
Aug 31 03:45:43.695 INFO kablam!     Checking jsonvalid v0.1.1 (file:///source)
Aug 31 03:45:44.125 INFO kablam!    Compiling skeptic v0.13.2
Aug 31 03:45:48.568 INFO kablam!    Compiling assert_cli v0.5.4
Aug 31 03:45:51.837 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 20.82s
Aug 31 03:45:51.849 INFO kablam! su: No module specific data is present
Aug 31 03:45:52.359 INFO running `"docker" "rm" "-f" "86bcac487c8728057ce201f5fced16897b0f80713590146709d9841ac54a6d59"`
Aug 31 03:45:52.490 INFO blam! 86bcac487c8728057ce201f5fced16897b0f80713590146709d9841ac54a6d59