Oct 31 19:53:53.550 INFO checking tercen/rustson against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 19:53:53.551 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 19:53:54.006 INFO blam! 4cdb4150d044be43e5e35e0fc18700595cc6a4b1e8354f18217ec3c94021e470
Oct 31 19:53:54.007 INFO running `"docker" "start" "-a" "4cdb4150d044be43e5e35e0fc18700595cc6a4b1e8354f18217ec3c94021e470"`
Oct 31 19:53:56.283 INFO kablam! usermod: no changes
Oct 31 19:53:56.356 INFO kablam!     Checking rustson v0.1.0 (/source)
Oct 31 19:53:56.980 INFO kablam! warning: unused import: `std::fs::File`
Oct 31 19:53:56.980 INFO kablam!    --> src/lib.rs:456:9
Oct 31 19:53:56.980 INFO kablam!     |
Oct 31 19:53:56.980 INFO kablam! 456 |     use std::fs::File;
Oct 31 19:53:56.980 INFO kablam!     |         ^^^^^^^^^^^^^
Oct 31 19:53:56.980 INFO kablam!     |
Oct 31 19:53:56.982 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 31 19:53:56.982 INFO kablam! 
Oct 31 19:53:56.982 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 31 19:53:56.982 INFO kablam!    --> src/lib.rs:457:9
Oct 31 19:53:56.982 INFO kablam!     |
Oct 31 19:53:56.982 INFO kablam! 457 |     use std::io::prelude::*;
Oct 31 19:53:56.982 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^
Oct 31 19:53:56.982 INFO kablam! 
Oct 31 19:53:57.320 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 19:53:57.320 INFO kablam!    --> src/lib.rs:133:17
Oct 31 19:53:57.320 INFO kablam!     |
Oct 31 19:53:57.320 INFO kablam! 133 |                 add_object(v, buf);
Oct 31 19:53:57.320 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^
Oct 31 19:53:57.322 INFO kablam!     |
Oct 31 19:53:57.322 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 31 19:53:57.322 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 19:53:57.322 INFO kablam! 
Oct 31 19:53:57.433 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 19:53:57.434 INFO kablam!    --> src/lib.rs:133:17
Oct 31 19:53:57.434 INFO kablam!     |
Oct 31 19:53:57.434 INFO kablam! 133 |                 add_object(v, buf);
Oct 31 19:53:57.434 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^
Oct 31 19:53:57.434 INFO kablam!     |
Oct 31 19:53:57.434 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 31 19:53:57.434 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 19:53:57.434 INFO kablam! 
Oct 31 19:53:57.496 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
Oct 31 19:53:57.500 INFO kablam! su: No module specific data is present
Oct 31 19:53:58.981 INFO running `"docker" "rm" "-f" "4cdb4150d044be43e5e35e0fc18700595cc6a4b1e8354f18217ec3c94021e470"`
Oct 31 19:53:59.244 INFO blam! 4cdb4150d044be43e5e35e0fc18700595cc6a4b1e8354f18217ec3c94021e470