Oct 31 19:53:59.323 INFO checking tercen/rustson against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Oct 31 19:53:59.323 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +05812fa8c588473f03e3fa7cf59cd84f4f37c715-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 31 19:53:59.849 INFO blam! 55c9b312e1878553a9044b4ba3d4ccbb68abefe22395eadc3a7a22e197ae0efd
Oct 31 19:53:59.851 INFO running `"docker" "start" "-a" "55c9b312e1878553a9044b4ba3d4ccbb68abefe22395eadc3a7a22e197ae0efd"`
Oct 31 19:54:01.396 INFO kablam! usermod: no changes
Oct 31 19:54:01.484 INFO kablam!     Checking rustson v0.1.0 (/source)
Oct 31 19:54:02.085 INFO kablam! warning: unused import: `std::fs::File`
Oct 31 19:54:02.085 INFO kablam!    --> src/lib.rs:456:9
Oct 31 19:54:02.085 INFO kablam!     |
Oct 31 19:54:02.086 INFO kablam! 456 |     use std::fs::File;
Oct 31 19:54:02.086 INFO kablam!     |         ^^^^^^^^^^^^^
Oct 31 19:54:02.086 INFO kablam!     |
Oct 31 19:54:02.086 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 31 19:54:02.087 INFO kablam! 
Oct 31 19:54:02.087 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 31 19:54:02.087 INFO kablam!    --> src/lib.rs:457:9
Oct 31 19:54:02.088 INFO kablam!     |
Oct 31 19:54:02.088 INFO kablam! 457 |     use std::io::prelude::*;
Oct 31 19:54:02.088 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^
Oct 31 19:54:02.089 INFO kablam! 
Oct 31 19:54:02.409 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 19:54:02.409 INFO kablam!    --> src/lib.rs:133:17
Oct 31 19:54:02.409 INFO kablam!     |
Oct 31 19:54:02.409 INFO kablam! 133 |                 add_object(v, buf);
Oct 31 19:54:02.410 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^
Oct 31 19:54:02.410 INFO kablam!     |
Oct 31 19:54:02.410 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 31 19:54:02.410 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 19:54:02.411 INFO kablam! 
Oct 31 19:54:02.564 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 19:54:02.564 INFO kablam!    --> src/lib.rs:133:17
Oct 31 19:54:02.564 INFO kablam!     |
Oct 31 19:54:02.564 INFO kablam! 133 |                 add_object(v, buf);
Oct 31 19:54:02.564 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^
Oct 31 19:54:02.564 INFO kablam!     |
Oct 31 19:54:02.564 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 31 19:54:02.564 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 19:54:02.564 INFO kablam! 
Oct 31 19:54:02.614 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Oct 31 19:54:02.631 INFO kablam! su: No module specific data is present
Oct 31 19:54:03.316 INFO running `"docker" "rm" "-f" "55c9b312e1878553a9044b4ba3d4ccbb68abefe22395eadc3a7a22e197ae0efd"`
Oct 31 19:54:03.576 INFO blam! 55c9b312e1878553a9044b4ba3d4ccbb68abefe22395eadc3a7a22e197ae0efd