Nov 01 07:45:37.246 INFO checking boustrophedon/png-concealer against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 07:45:37.247 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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"`
Nov 01 07:45:37.787 INFO blam! 33fa510c308a9f798922a1543c98ff7f352b4b84717f267e5198ee75f21dd6ef
Nov 01 07:45:37.789 INFO running `"docker" "start" "-a" "33fa510c308a9f798922a1543c98ff7f352b4b84717f267e5198ee75f21dd6ef"`
Nov 01 07:45:39.905 INFO kablam! usermod: no changes
Nov 01 07:45:40.026 INFO kablam!     Checking png-concealer v0.1.0 (/source)
Nov 01 07:45:41.886 INFO kablam! warning: unused `#[macro_use]` import
Nov 01 07:45:41.886 INFO kablam!  --> src/main.rs:5:1
Nov 01 07:45:41.886 INFO kablam!   |
Nov 01 07:45:41.886 INFO kablam! 5 | #[macro_use]
Nov 01 07:45:41.886 INFO kablam!   | ^^^^^^^^^^^^
Nov 01 07:45:41.886 INFO kablam!   |
Nov 01 07:45:41.886 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 07:45:41.886 INFO kablam! 
Nov 01 07:45:42.037 INFO kablam! warning: unused `#[macro_use]` import
Nov 01 07:45:42.037 INFO kablam!  --> src/main.rs:5:1
Nov 01 07:45:42.037 INFO kablam!   |
Nov 01 07:45:42.037 INFO kablam! 5 | #[macro_use]
Nov 01 07:45:42.037 INFO kablam!   | ^^^^^^^^^^^^
Nov 01 07:45:42.037 INFO kablam!   |
Nov 01 07:45:42.037 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 07:45:42.037 INFO kablam! 
Nov 01 07:45:42.109 INFO kablam! warning: unused variable: `input_png`
Nov 01 07:45:42.109 INFO kablam!    --> src/main.rs:109:16
Nov 01 07:45:42.109 INFO kablam!     |
Nov 01 07:45:42.109 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Nov 01 07:45:42.109 INFO kablam!     |                ^^^^^^^^^ help: consider using `_input_png` instead
Nov 01 07:45:42.117 INFO kablam!     |
Nov 01 07:45:42.117 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 01 07:45:42.117 INFO kablam! 
Nov 01 07:45:42.117 INFO kablam! warning: unused variable: `output`
Nov 01 07:45:42.117 INFO kablam!    --> src/main.rs:109:36
Nov 01 07:45:42.117 INFO kablam!     |
Nov 01 07:45:42.117 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Nov 01 07:45:42.117 INFO kablam!     |                                    ^^^^^^ help: consider using `_output` instead
Nov 01 07:45:42.117 INFO kablam! 
Nov 01 07:45:42.155 INFO kablam! warning: constant `max_length` should have an upper case name such as `MAX_LENGTH`
Nov 01 07:45:42.155 INFO kablam!   --> src/main.rs:51:5
Nov 01 07:45:42.155 INFO kablam!    |
Nov 01 07:45:42.155 INFO kablam! 51 |     const max_length: usize = (1<<31) - 1; // as defined in png spec
Nov 01 07:45:42.155 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 07:45:42.156 INFO kablam!    |
Nov 01 07:45:42.156 INFO kablam!    = note: #[warn(non_upper_case_globals)] on by default
Nov 01 07:45:42.160 INFO kablam! 
Nov 01 07:45:42.180 INFO kablam! warning: unused variable: `input_png`
Nov 01 07:45:42.180 INFO kablam!    --> src/main.rs:109:16
Nov 01 07:45:42.180 INFO kablam!     |
Nov 01 07:45:42.180 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Nov 01 07:45:42.180 INFO kablam!     |                ^^^^^^^^^ help: consider using `_input_png` instead
Nov 01 07:45:42.180 INFO kablam!     |
Nov 01 07:45:42.180 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 01 07:45:42.180 INFO kablam! 
Nov 01 07:45:42.180 INFO kablam! warning: unused variable: `output`
Nov 01 07:45:42.180 INFO kablam!    --> src/main.rs:109:36
Nov 01 07:45:42.180 INFO kablam!     |
Nov 01 07:45:42.180 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Nov 01 07:45:42.180 INFO kablam!     |                                    ^^^^^^ help: consider using `_output` instead
Nov 01 07:45:42.180 INFO kablam! 
Nov 01 07:45:42.209 INFO kablam! warning: constant `max_length` should have an upper case name such as `MAX_LENGTH`
Nov 01 07:45:42.209 INFO kablam!   --> src/main.rs:51:5
Nov 01 07:45:42.209 INFO kablam!    |
Nov 01 07:45:42.209 INFO kablam! 51 |     const max_length: usize = (1<<31) - 1; // as defined in png spec
Nov 01 07:45:42.209 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 07:45:42.209 INFO kablam!    |
Nov 01 07:45:42.209 INFO kablam!    = note: #[warn(non_upper_case_globals)] on by default
Nov 01 07:45:42.209 INFO kablam! 
Nov 01 07:45:42.266 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
Nov 01 07:45:42.271 INFO kablam! su: No module specific data is present
Nov 01 07:45:43.393 INFO running `"docker" "rm" "-f" "33fa510c308a9f798922a1543c98ff7f352b4b84717f267e5198ee75f21dd6ef"`
Nov 01 07:45:43.788 INFO blam! 33fa510c308a9f798922a1543c98ff7f352b4b84717f267e5198ee75f21dd6ef