Dec 12 13:41:16.981 INFO checking gpw-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 13:41:16.982 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 13:41:17.201 INFO [stdout] 413c32852a4299fc5a08b7ccea51fa5ad8493d25225d487d9d5ec026b8c34b4f
Dec 12 13:41:17.208 INFO running `"docker" "start" "-a" "413c32852a4299fc5a08b7ccea51fa5ad8493d25225d487d9d5ec026b8c34b4f"`
Dec 12 13:41:17.795 INFO [stderr] usermod: no changes
Dec 12 13:41:17.920 INFO [stderr]    Compiling ndarray v0.12.1
Dec 12 13:41:26.852 INFO [stderr]     Checking gpw v0.1.0 (/source)
Dec 12 13:41:28.248 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 13:41:28.248 INFO [stderr]  --> src/lib.rs:5:1
Dec 12 13:41:28.248 INFO [stderr]   |
Dec 12 13:41:28.248 INFO [stderr] 5 | #[macro_use]
Dec 12 13:41:28.248 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 13:41:28.248 INFO [stderr]   |
Dec 12 13:41:28.248 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 13:41:28.248 INFO [stderr] 
Dec 12 13:41:28.248 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 12 13:41:28.248 INFO [stderr]   --> src/lib.rs:88:15
Dec 12 13:41:28.248 INFO [stderr]    |
Dec 12 13:41:28.248 INFO [stderr] 88 |         while (nchar < LENGTH) {
Dec 12 13:41:28.248 INFO [stderr]    |               ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 12 13:41:28.248 INFO [stderr]    |
Dec 12 13:41:28.248 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 12 13:41:28.248 INFO [stderr] 
Dec 12 13:41:28.320 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 13:41:28.320 INFO [stderr]  --> src/lib.rs:5:1
Dec 12 13:41:28.320 INFO [stderr]   |
Dec 12 13:41:28.320 INFO [stderr] 5 | #[macro_use]
Dec 12 13:41:28.320 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 13:41:28.320 INFO [stderr]   |
Dec 12 13:41:28.320 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 13:41:28.320 INFO [stderr] 
Dec 12 13:41:28.320 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 12 13:41:28.320 INFO [stderr]   --> src/lib.rs:88:15
Dec 12 13:41:28.320 INFO [stderr]    |
Dec 12 13:41:28.320 INFO [stderr] 88 |         while (nchar < LENGTH) {
Dec 12 13:41:28.320 INFO [stderr]    |               ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 12 13:41:28.320 INFO [stderr]    |
Dec 12 13:41:28.320 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 12 13:41:28.320 INFO [stderr] 
Dec 12 13:41:28.356 INFO [stderr] warning: variable does not need to be mutable
Dec 12 13:41:28.356 INFO [stderr]   --> src/lib.rs:39:13
Dec 12 13:41:28.356 INFO [stderr]    |
Dec 12 13:41:28.356 INFO [stderr] 39 |         let mut retval = PasswordGenerator {
Dec 12 13:41:28.356 INFO [stderr]    |             ----^^^^^^
Dec 12 13:41:28.356 INFO [stderr]    |             |
Dec 12 13:41:28.356 INFO [stderr]    |             help: remove this `mut`
Dec 12 13:41:28.356 INFO [stderr]    |
Dec 12 13:41:28.356 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 13:41:28.356 INFO [stderr] 
Dec 12 13:41:28.372 INFO [stderr] warning: function is never used: `empty_trigram_file`
Dec 12 13:41:28.372 INFO [stderr]   --> src/trigram.rs:13:5
Dec 12 13:41:28.372 INFO [stderr]    |
Dec 12 13:41:28.372 INFO [stderr] 13 |     fn empty_trigram_file() {
Dec 12 13:41:28.372 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 13:41:28.372 INFO [stderr]    |
Dec 12 13:41:28.372 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 13:41:28.372 INFO [stderr] 
Dec 12 13:41:28.383 INFO [stderr] warning: variable does not need to be mutable
Dec 12 13:41:28.383 INFO [stderr]   --> src/lib.rs:39:13
Dec 12 13:41:28.383 INFO [stderr]    |
Dec 12 13:41:28.383 INFO [stderr] 39 |         let mut retval = PasswordGenerator {
Dec 12 13:41:28.383 INFO [stderr]    |             ----^^^^^^
Dec 12 13:41:28.383 INFO [stderr]    |             |
Dec 12 13:41:28.383 INFO [stderr]    |             help: remove this `mut`
Dec 12 13:41:28.383 INFO [stderr]    |
Dec 12 13:41:28.383 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 13:41:28.383 INFO [stderr] 
Dec 12 13:41:28.428 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.60s
Dec 12 13:41:28.436 INFO [stderr] su: No module specific data is present
Dec 12 13:41:28.985 INFO running `"docker" "inspect" "413c32852a4299fc5a08b7ccea51fa5ad8493d25225d487d9d5ec026b8c34b4f"`
Dec 12 13:41:29.258 INFO running `"docker" "rm" "-f" "413c32852a4299fc5a08b7ccea51fa5ad8493d25225d487d9d5ec026b8c34b4f"`
Dec 12 13:41:29.453 INFO [stdout] 413c32852a4299fc5a08b7ccea51fa5ad8493d25225d487d9d5ec026b8c34b4f