Oct 21 13:58:55.641 INFO checking seb-odessa/btree against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 13:58:55.642 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 13:58:56.034 INFO blam! d7d7630310f6909693a12ef219ff0a78227dac5537642708d050d3bbbf54262d
Oct 21 13:58:56.045 INFO running `"docker" "start" "-a" "d7d7630310f6909693a12ef219ff0a78227dac5537642708d050d3bbbf54262d"`
Oct 21 13:58:57.297 INFO kablam! usermod: no changes
Oct 21 13:58:57.368 INFO kablam!     Checking BTree v0.1.0 (/source)
Oct 21 13:58:57.606 INFO kablam! warning: unused import: `Formatter`
Oct 21 13:58:57.606 INFO kablam!  --> src/main.rs:1:25
Oct 21 13:58:57.607 INFO kablam!   |
Oct 21 13:58:57.607 INFO kablam! 1 | use std::fmt::{Display, Formatter};
Oct 21 13:58:57.607 INFO kablam!   |                         ^^^^^^^^^
Oct 21 13:58:57.608 INFO kablam!   |
Oct 21 13:58:57.609 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 21 13:58:57.609 INFO kablam! 
Oct 21 13:58:57.668 INFO kablam! warning: variable does not need to be mutable
Oct 21 13:58:57.669 INFO kablam!    --> src/main.rs:149:14
Oct 21 13:58:57.669 INFO kablam!     |
Oct 21 13:58:57.669 INFO kablam! 149 |         Some(mut node) => node.update("Z".to_string()),
Oct 21 13:58:57.669 INFO kablam!     |              ----^^^^
Oct 21 13:58:57.669 INFO kablam!     |              |
Oct 21 13:58:57.669 INFO kablam!     |              help: remove this `mut`
Oct 21 13:58:57.670 INFO kablam!     |
Oct 21 13:58:57.670 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 21 13:58:57.670 INFO kablam! 
Oct 21 13:58:57.670 INFO kablam! warning: crate `BTree` should have a snake case name such as `btree`
Oct 21 13:58:57.676 INFO kablam!   |
Oct 21 13:58:57.676 INFO kablam!   = note: #[warn(non_snake_case)] on by default
Oct 21 13:58:57.676 INFO kablam! 
Oct 21 13:58:57.852 INFO kablam! warning: unused import: `Formatter`
Oct 21 13:58:57.852 INFO kablam!  --> src/main.rs:1:25
Oct 21 13:58:57.852 INFO kablam!   |
Oct 21 13:58:57.852 INFO kablam! 1 | use std::fmt::{Display, Formatter};
Oct 21 13:58:57.852 INFO kablam!   |                         ^^^^^^^^^
Oct 21 13:58:57.852 INFO kablam!   |
Oct 21 13:58:57.852 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 21 13:58:57.852 INFO kablam! 
Oct 21 13:58:57.925 INFO kablam! warning: variable does not need to be mutable
Oct 21 13:58:57.925 INFO kablam!    --> src/main.rs:149:14
Oct 21 13:58:57.926 INFO kablam!     |
Oct 21 13:58:57.926 INFO kablam! 149 |         Some(mut node) => node.update("Z".to_string()),
Oct 21 13:58:57.926 INFO kablam!     |              ----^^^^
Oct 21 13:58:57.926 INFO kablam!     |              |
Oct 21 13:58:57.927 INFO kablam!     |              help: remove this `mut`
Oct 21 13:58:57.927 INFO kablam!     |
Oct 21 13:58:57.927 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 21 13:58:57.928 INFO kablam! 
Oct 21 13:58:57.928 INFO kablam! warning: crate `BTree` should have a snake case name such as `btree`
Oct 21 13:58:57.928 INFO kablam!   |
Oct 21 13:58:57.929 INFO kablam!   = note: #[warn(non_snake_case)] on by default
Oct 21 13:58:57.929 INFO kablam! 
Oct 21 13:58:57.951 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
Oct 21 13:58:57.957 INFO kablam! su: No module specific data is present
Oct 21 13:58:58.446 INFO running `"docker" "rm" "-f" "d7d7630310f6909693a12ef219ff0a78227dac5537642708d050d3bbbf54262d"`
Oct 21 13:58:58.768 INFO blam! d7d7630310f6909693a12ef219ff0a78227dac5537642708d050d3bbbf54262d