Oct 31 18:01:53.111 INFO checking wjh/zif_log against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 18:01:53.113 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-4/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 18:01:53.719 INFO blam! 48a27590bd4017fa2efa9eb7afe5a46ae6e178072c7557253ddb4b454c843d17
Oct 31 18:01:53.720 INFO running `"docker" "start" "-a" "48a27590bd4017fa2efa9eb7afe5a46ae6e178072c7557253ddb4b454c843d17"`
Oct 31 18:01:56.132 INFO kablam! usermod: no changes
Oct 31 18:01:56.240 INFO kablam!    Compiling scopeguard v0.3.3
Oct 31 18:01:56.253 INFO kablam!    Compiling either v1.4.0
Oct 31 18:01:56.253 INFO kablam!    Compiling libc v0.2.34
Oct 31 18:01:56.253 INFO kablam!    Compiling rayon-core v1.3.0
Oct 31 18:01:56.254 INFO kablam!    Compiling lazy_static v0.2.11
Oct 31 18:01:56.254 INFO kablam!     Checking untrusted v0.5.1
Oct 31 18:01:56.254 INFO kablam!     Checking constant_time_eq v0.1.3
Oct 31 18:01:56.255 INFO kablam!     Checking arrayvec v0.4.6
Oct 31 18:01:58.308 INFO kablam!    Compiling coco v0.1.1
Oct 31 18:01:59.774 INFO kablam!     Checking blake2-rfc v0.2.18
Oct 31 18:02:01.049 INFO kablam!    Compiling rand v0.3.19
Oct 31 18:02:01.050 INFO kablam!    Compiling num_cpus v1.7.0
Oct 31 18:02:07.117 INFO kablam!    Compiling rayon v0.8.2
Oct 31 18:02:10.210 INFO kablam!    Compiling ring v0.12.1
Oct 31 18:02:18.094 INFO kablam!     Checking zif_log v0.1.0 (/source)
Oct 31 18:02:18.524 INFO kablam! warning: unused import: `OpenOptions`
Oct 31 18:02:18.525 INFO kablam!  --> src/log.rs:2:21
Oct 31 18:02:18.526 INFO kablam!   |
Oct 31 18:02:18.526 INFO kablam! 2 | use std::fs::{File, OpenOptions};
Oct 31 18:02:18.527 INFO kablam!   |                     ^^^^^^^^^^^
Oct 31 18:02:18.528 INFO kablam!   |
Oct 31 18:02:18.528 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 31 18:02:18.529 INFO kablam! 
Oct 31 18:02:18.549 INFO kablam! warning: unused import: `OpenOptions`
Oct 31 18:02:18.550 INFO kablam!  --> src/log.rs:2:21
Oct 31 18:02:18.551 INFO kablam!   |
Oct 31 18:02:18.551 INFO kablam! 2 | use std::fs::{File, OpenOptions};
Oct 31 18:02:18.552 INFO kablam!   |                     ^^^^^^^^^^^
Oct 31 18:02:18.552 INFO kablam!   |
Oct 31 18:02:18.553 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 31 18:02:18.553 INFO kablam! 
Oct 31 18:02:18.829 INFO kablam! warning: value assigned to `pos` is never read
Oct 31 18:02:18.830 INFO kablam!   --> src/lib.rs:51:9
Oct 31 18:02:18.830 INFO kablam!    |
Oct 31 18:02:18.830 INFO kablam! 51 |         pos += 8;
Oct 31 18:02:18.830 INFO kablam!    |         ^^^
Oct 31 18:02:18.830 INFO kablam!    |
Oct 31 18:02:18.830 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 31 18:02:18.830 INFO kablam! 
Oct 31 18:02:18.844 INFO kablam! warning: variable does not need to be mutable
Oct 31 18:02:18.844 INFO kablam!   --> src/log.rs:84:31
Oct 31 18:02:18.845 INFO kablam!    |
Oct 31 18:02:18.845 INFO kablam! 84 |     pub fn read(read: &mut T, mut internal: T) -> Result<Log<T>, error::Error> {
Oct 31 18:02:18.845 INFO kablam!    |                               ----^^^^^^^^
Oct 31 18:02:18.845 INFO kablam!    |                               |
Oct 31 18:02:18.845 INFO kablam!    |                               help: remove this `mut`
Oct 31 18:02:18.845 INFO kablam!    |
Oct 31 18:02:18.845 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 31 18:02:18.845 INFO kablam! 
Oct 31 18:02:18.861 INFO kablam! warning: variable does not need to be mutable
Oct 31 18:02:18.862 INFO kablam!   --> src/lib.rs:22:13
Oct 31 18:02:18.862 INFO kablam!    |
Oct 31 18:02:18.862 INFO kablam! 22 |         let mut vec = Vec::with_capacity(1024);
Oct 31 18:02:18.862 INFO kablam!    |             ----^^^
Oct 31 18:02:18.862 INFO kablam!    |             |
Oct 31 18:02:18.862 INFO kablam!    |             help: remove this `mut`
Oct 31 18:02:18.862 INFO kablam!    |
Oct 31 18:02:18.862 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 31 18:02:18.862 INFO kablam! 
Oct 31 18:02:18.864 INFO kablam! warning: variable does not need to be mutable
Oct 31 18:02:18.865 INFO kablam!   --> src/lib.rs:56:13
Oct 31 18:02:18.865 INFO kablam!    |
Oct 31 18:02:18.865 INFO kablam! 56 |         let mut vec = Vec::with_capacity(1024);
Oct 31 18:02:18.865 INFO kablam!    |             ----^^^
Oct 31 18:02:18.865 INFO kablam!    |             |
Oct 31 18:02:18.865 INFO kablam!    |             help: remove this `mut`
Oct 31 18:02:18.865 INFO kablam! 
Oct 31 18:02:18.866 INFO kablam! warning: variable does not need to be mutable
Oct 31 18:02:18.866 INFO kablam!   --> src/lib.rs:65:13
Oct 31 18:02:18.866 INFO kablam!    |
Oct 31 18:02:18.866 INFO kablam! 65 |         let mut vec = Vec::with_capacity(1024);
Oct 31 18:02:18.866 INFO kablam!    |             ----^^^
Oct 31 18:02:18.866 INFO kablam!    |             |
Oct 31 18:02:18.866 INFO kablam!    |             help: remove this `mut`
Oct 31 18:02:18.866 INFO kablam! 
Oct 31 18:02:18.866 INFO kablam! warning: variable does not need to be mutable
Oct 31 18:02:18.867 INFO kablam!   --> src/lib.rs:67:13
Oct 31 18:02:18.867 INFO kablam!    |
Oct 31 18:02:18.867 INFO kablam! 67 |         let mut log_read = Log::read(&mut log.internal, file).unwrap();
Oct 31 18:02:18.867 INFO kablam!    |             ----^^^^^^^^
Oct 31 18:02:18.867 INFO kablam!    |             |
Oct 31 18:02:18.867 INFO kablam!    |             help: remove this `mut`
Oct 31 18:02:18.867 INFO kablam! 
Oct 31 18:02:18.924 INFO kablam! warning: variable does not need to be mutable
Oct 31 18:02:18.924 INFO kablam!   --> src/log.rs:84:31
Oct 31 18:02:18.924 INFO kablam!    |
Oct 31 18:02:18.925 INFO kablam! 84 |     pub fn read(read: &mut T, mut internal: T) -> Result<Log<T>, error::Error> {
Oct 31 18:02:18.925 INFO kablam!    |                               ----^^^^^^^^
Oct 31 18:02:18.925 INFO kablam!    |                               |
Oct 31 18:02:18.925 INFO kablam!    |                               help: remove this `mut`
Oct 31 18:02:18.926 INFO kablam! 
Oct 31 18:02:18.985 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 22.83s
Oct 31 18:02:18.992 INFO kablam! su: No module specific data is present
Oct 31 18:02:20.986 INFO running `"docker" "rm" "-f" "48a27590bd4017fa2efa9eb7afe5a46ae6e178072c7557253ddb4b454c843d17"`
Oct 31 18:02:21.324 INFO blam! 48a27590bd4017fa2efa9eb7afe5a46ae6e178072c7557253ddb4b454c843d17