Dec 17 11:54:32.268 INFO checking wjh/zif_log against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 11:54:32.268 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/wjh/zif_log:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 11:54:32.730 INFO [stdout] 496a81009c0911b9f23bae8d1d159f8148f87cffd96e8a55750d03d2386dfc52
Dec 17 11:54:32.732 INFO running `"docker" "start" "-a" "496a81009c0911b9f23bae8d1d159f8148f87cffd96e8a55750d03d2386dfc52"`
Dec 17 11:54:34.537 INFO [stderr]    Compiling scopeguard v0.3.3
Dec 17 11:54:34.537 INFO [stderr]    Compiling either v1.4.0
Dec 17 11:54:34.537 INFO [stderr]    Compiling rayon-core v1.3.0
Dec 17 11:54:34.565 INFO [stderr]     Checking untrusted v0.5.1
Dec 17 11:54:34.565 INFO [stderr]     Checking bufstream v0.1.3
Dec 17 11:54:34.566 INFO [stderr]    Compiling rand v0.3.19
Dec 17 11:54:34.566 INFO [stderr]    Compiling num_cpus v1.7.0
Dec 17 11:54:34.566 INFO [stderr]     Checking arrayvec v0.4.6
Dec 17 11:54:35.444 INFO [stderr]    Compiling coco v0.1.1
Dec 17 11:54:36.728 INFO [stderr]     Checking blake2-rfc v0.2.18
Dec 17 11:54:40.773 INFO [stderr]    Compiling rayon v0.8.2
Dec 17 11:54:43.929 INFO [stderr]    Compiling ring v0.12.1
Dec 17 11:54:50.612 INFO [stderr]     Checking zif_log v0.1.0 (/opt/crater/workdir)
Dec 17 11:54:50.823 INFO [stderr] warning: unused import: `OpenOptions`
Dec 17 11:54:50.824 INFO [stderr]  --> src/log.rs:2:21
Dec 17 11:54:50.824 INFO [stderr]   |
Dec 17 11:54:50.824 INFO [stderr] 2 | use std::fs::{File, OpenOptions};
Dec 17 11:54:50.824 INFO [stderr]   |                     ^^^^^^^^^^^
Dec 17 11:54:50.825 INFO [stderr]   |
Dec 17 11:54:50.825 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 11:54:50.825 INFO [stderr] 
Dec 17 11:54:50.863 INFO [stderr] warning: unused import: `OpenOptions`
Dec 17 11:54:50.863 INFO [stderr]  --> src/log.rs:2:21
Dec 17 11:54:50.863 INFO [stderr]   |
Dec 17 11:54:50.863 INFO [stderr] 2 | use std::fs::{File, OpenOptions};
Dec 17 11:54:50.863 INFO [stderr]   |                     ^^^^^^^^^^^
Dec 17 11:54:50.870 INFO [stderr]   |
Dec 17 11:54:50.870 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 11:54:50.870 INFO [stderr] 
Dec 17 11:54:51.072 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:54:51.072 INFO [stderr]   --> src/log.rs:84:31
Dec 17 11:54:51.072 INFO [stderr]    |
Dec 17 11:54:51.072 INFO [stderr] 84 |     pub fn read(read: &mut T, mut internal: T) -> Result<Log<T>, error::Error> {
Dec 17 11:54:51.072 INFO [stderr]    |                               ----^^^^^^^^
Dec 17 11:54:51.072 INFO [stderr]    |                               |
Dec 17 11:54:51.072 INFO [stderr]    |                               help: remove this `mut`
Dec 17 11:54:51.073 INFO [stderr]    |
Dec 17 11:54:51.073 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 11:54:51.073 INFO [stderr] 
Dec 17 11:54:51.091 INFO [stderr] warning: value assigned to `pos` is never read
Dec 17 11:54:51.091 INFO [stderr]   --> src/lib.rs:51:9
Dec 17 11:54:51.091 INFO [stderr]    |
Dec 17 11:54:51.091 INFO [stderr] 51 |         pos += 8;
Dec 17 11:54:51.092 INFO [stderr]    |         ^^^
Dec 17 11:54:51.092 INFO [stderr]    |
Dec 17 11:54:51.092 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 17 11:54:51.092 INFO [stderr] 
Dec 17 11:54:51.145 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:54:51.145 INFO [stderr]   --> src/lib.rs:22:13
Dec 17 11:54:51.145 INFO [stderr]    |
Dec 17 11:54:51.145 INFO [stderr] 22 |         let mut vec = Vec::with_capacity(1024);
Dec 17 11:54:51.145 INFO [stderr]    |             ----^^^
Dec 17 11:54:51.145 INFO [stderr]    |             |
Dec 17 11:54:51.145 INFO [stderr]    |             help: remove this `mut`
Dec 17 11:54:51.145 INFO [stderr]    |
Dec 17 11:54:51.145 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 11:54:51.145 INFO [stderr] 
Dec 17 11:54:51.146 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:54:51.146 INFO [stderr]   --> src/lib.rs:56:13
Dec 17 11:54:51.146 INFO [stderr]    |
Dec 17 11:54:51.146 INFO [stderr] 56 |         let mut vec = Vec::with_capacity(1024);
Dec 17 11:54:51.146 INFO [stderr]    |             ----^^^
Dec 17 11:54:51.147 INFO [stderr]    |             |
Dec 17 11:54:51.147 INFO [stderr]    |             help: remove this `mut`
Dec 17 11:54:51.147 INFO [stderr] 
Dec 17 11:54:51.147 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:54:51.147 INFO [stderr]   --> src/lib.rs:65:13
Dec 17 11:54:51.147 INFO [stderr]    |
Dec 17 11:54:51.147 INFO [stderr] 65 |         let mut vec = Vec::with_capacity(1024);
Dec 17 11:54:51.147 INFO [stderr]    |             ----^^^
Dec 17 11:54:51.147 INFO [stderr]    |             |
Dec 17 11:54:51.147 INFO [stderr]    |             help: remove this `mut`
Dec 17 11:54:51.147 INFO [stderr] 
Dec 17 11:54:51.147 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:54:51.147 INFO [stderr]   --> src/lib.rs:67:13
Dec 17 11:54:51.147 INFO [stderr]    |
Dec 17 11:54:51.147 INFO [stderr] 67 |         let mut log_read = Log::read(&mut log.internal, file).unwrap();
Dec 17 11:54:51.147 INFO [stderr]    |             ----^^^^^^^^
Dec 17 11:54:51.147 INFO [stderr]    |             |
Dec 17 11:54:51.147 INFO [stderr]    |             help: remove this `mut`
Dec 17 11:54:51.147 INFO [stderr] 
Dec 17 11:54:51.180 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:54:51.180 INFO [stderr]   --> src/log.rs:84:31
Dec 17 11:54:51.180 INFO [stderr]    |
Dec 17 11:54:51.180 INFO [stderr] 84 |     pub fn read(read: &mut T, mut internal: T) -> Result<Log<T>, error::Error> {
Dec 17 11:54:51.180 INFO [stderr]    |                               ----^^^^^^^^
Dec 17 11:54:51.180 INFO [stderr]    |                               |
Dec 17 11:54:51.180 INFO [stderr]    |                               help: remove this `mut`
Dec 17 11:54:51.180 INFO [stderr] 
Dec 17 11:54:51.229 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.74s
Dec 17 11:54:52.175 INFO running `"docker" "inspect" "496a81009c0911b9f23bae8d1d159f8148f87cffd96e8a55750d03d2386dfc52"`
Dec 17 11:54:52.411 INFO running `"docker" "rm" "-f" "496a81009c0911b9f23bae8d1d159f8148f87cffd96e8a55750d03d2386dfc52"`
Dec 17 11:54:52.688 INFO [stdout] 496a81009c0911b9f23bae8d1d159f8148f87cffd96e8a55750d03d2386dfc52