Dec 18 15:12:28.413 INFO checking hematite-nbt-0.3.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 15:12:28.414 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/hematite-nbt/0.3.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 15:12:28.788 INFO [stdout] ad660d5d7573f3e1823710490ac43cbea20ca327d28b4ff3f85f462eb169f0ec
Dec 18 15:12:28.790 INFO running `"docker" "start" "-a" "ad660d5d7573f3e1823710490ac43cbea20ca327d28b4ff3f85f462eb169f0ec"`
Dec 18 15:12:30.368 INFO [stderr]     Checking hematite-nbt v0.3.0 (/opt/crater/workdir)
Dec 18 15:12:31.288 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 15:12:31.288 INFO [stderr]   --> src/error.rs:68:40
Dec 18 15:12:31.288 INFO [stderr]    |
Dec 18 15:12:31.288 INFO [stderr] 68 |             Error::IoError(ref e) => e.cause(),
Dec 18 15:12:31.288 INFO [stderr]    |                                        ^^^^^
Dec 18 15:12:31.288 INFO [stderr]    |
Dec 18 15:12:31.288 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 15:12:31.288 INFO [stderr] 
Dec 18 15:12:31.412 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 15:12:31.412 INFO [stderr]   --> src/error.rs:68:40
Dec 18 15:12:31.412 INFO [stderr]    |
Dec 18 15:12:31.412 INFO [stderr] 68 |             Error::IoError(ref e) => e.cause(),
Dec 18 15:12:31.412 INFO [stderr]    |                                        ^^^^^
Dec 18 15:12:31.412 INFO [stderr]    |
Dec 18 15:12:31.412 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 15:12:31.412 INFO [stderr] 
Dec 18 15:12:31.447 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.452 INFO [stderr]   --> src/blob.rs:50:24
Dec 18 15:12:31.452 INFO [stderr]    |
Dec 18 15:12:31.452 INFO [stderr] 50 |     pub fn from_reader(mut src: &mut io::Read) -> Result<Blob> {
Dec 18 15:12:31.452 INFO [stderr]    |                        ----^^^
Dec 18 15:12:31.452 INFO [stderr]    |                        |
Dec 18 15:12:31.452 INFO [stderr]    |                        help: remove this `mut`
Dec 18 15:12:31.452 INFO [stderr]    |
Dec 18 15:12:31.452 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 15:12:31.452 INFO [stderr] 
Dec 18 15:12:31.535 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.535 INFO [stderr]   --> src/value.rs:88:32
Dec 18 15:12:31.535 INFO [stderr]    |
Dec 18 15:12:31.535 INFO [stderr] 88 |     pub fn write_header(&self, mut dst: &mut io::Write, title: &str) -> Result<()> {
Dec 18 15:12:31.535 INFO [stderr]    |                                ----^^^
Dec 18 15:12:31.535 INFO [stderr]    |                                |
Dec 18 15:12:31.535 INFO [stderr]    |                                help: remove this `mut`
Dec 18 15:12:31.535 INFO [stderr] 
Dec 18 15:12:31.572 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.572 INFO [stderr]   --> src/value.rs:96:25
Dec 18 15:12:31.572 INFO [stderr]    |
Dec 18 15:12:31.572 INFO [stderr] 96 |     pub fn write(&self, mut dst: &mut io::Write) -> Result<()> {
Dec 18 15:12:31.572 INFO [stderr]    |                         ----^^^
Dec 18 15:12:31.572 INFO [stderr]    |                         |
Dec 18 15:12:31.572 INFO [stderr]    |                         help: remove this `mut`
Dec 18 15:12:31.572 INFO [stderr] 
Dec 18 15:12:31.573 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.573 INFO [stderr]    --> src/value.rs:155:24
Dec 18 15:12:31.573 INFO [stderr]     |
Dec 18 15:12:31.573 INFO [stderr] 155 |     pub fn read_header(mut src: &mut io::Read) -> Result<(u8, String)> {
Dec 18 15:12:31.573 INFO [stderr]     |                        ----^^^
Dec 18 15:12:31.573 INFO [stderr]     |                        |
Dec 18 15:12:31.573 INFO [stderr]     |                        help: remove this `mut`
Dec 18 15:12:31.573 INFO [stderr] 
Dec 18 15:12:31.592 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.592 INFO [stderr]    --> src/value.rs:170:32
Dec 18 15:12:31.592 INFO [stderr]     |
Dec 18 15:12:31.592 INFO [stderr] 170 |     pub fn from_reader(id: u8, mut src: &mut io::Read) -> Result<Value> {
Dec 18 15:12:31.592 INFO [stderr]     |                                ----^^^
Dec 18 15:12:31.592 INFO [stderr]     |                                |
Dec 18 15:12:31.592 INFO [stderr]     |                                help: remove this `mut`
Dec 18 15:12:31.592 INFO [stderr] 
Dec 18 15:12:31.608 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.608 INFO [stderr]    --> src/value.rs:309:14
Dec 18 15:12:31.608 INFO [stderr]     |
Dec 18 15:12:31.608 INFO [stderr] 309 | fn read_utf8(mut src: &mut io::Read, len: usize) -> Result<String> {
Dec 18 15:12:31.608 INFO [stderr]     |              ----^^^
Dec 18 15:12:31.608 INFO [stderr]     |              |
Dec 18 15:12:31.608 INFO [stderr]     |              help: remove this `mut`
Dec 18 15:12:31.608 INFO [stderr] 
Dec 18 15:12:31.656 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.656 INFO [stderr]   --> src/blob.rs:50:24
Dec 18 15:12:31.656 INFO [stderr]    |
Dec 18 15:12:31.656 INFO [stderr] 50 |     pub fn from_reader(mut src: &mut io::Read) -> Result<Blob> {
Dec 18 15:12:31.656 INFO [stderr]    |                        ----^^^
Dec 18 15:12:31.656 INFO [stderr]    |                        |
Dec 18 15:12:31.656 INFO [stderr]    |                        help: remove this `mut`
Dec 18 15:12:31.656 INFO [stderr]    |
Dec 18 15:12:31.656 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 15:12:31.656 INFO [stderr] 
Dec 18 15:12:31.688 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.688 INFO [stderr]   --> src/value.rs:88:32
Dec 18 15:12:31.688 INFO [stderr]    |
Dec 18 15:12:31.688 INFO [stderr] 88 |     pub fn write_header(&self, mut dst: &mut io::Write, title: &str) -> Result<()> {
Dec 18 15:12:31.688 INFO [stderr]    |                                ----^^^
Dec 18 15:12:31.688 INFO [stderr]    |                                |
Dec 18 15:12:31.688 INFO [stderr]    |                                help: remove this `mut`
Dec 18 15:12:31.688 INFO [stderr] 
Dec 18 15:12:31.696 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.696 INFO [stderr]   --> src/value.rs:96:25
Dec 18 15:12:31.696 INFO [stderr]    |
Dec 18 15:12:31.696 INFO [stderr] 96 |     pub fn write(&self, mut dst: &mut io::Write) -> Result<()> {
Dec 18 15:12:31.696 INFO [stderr]    |                         ----^^^
Dec 18 15:12:31.696 INFO [stderr]    |                         |
Dec 18 15:12:31.696 INFO [stderr]    |                         help: remove this `mut`
Dec 18 15:12:31.696 INFO [stderr] 
Dec 18 15:12:31.704 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.704 INFO [stderr]    --> src/value.rs:155:24
Dec 18 15:12:31.704 INFO [stderr]     |
Dec 18 15:12:31.704 INFO [stderr] 155 |     pub fn read_header(mut src: &mut io::Read) -> Result<(u8, String)> {
Dec 18 15:12:31.704 INFO [stderr]     |                        ----^^^
Dec 18 15:12:31.704 INFO [stderr]     |                        |
Dec 18 15:12:31.704 INFO [stderr]     |                        help: remove this `mut`
Dec 18 15:12:31.704 INFO [stderr] 
Dec 18 15:12:31.708 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.708 INFO [stderr]    --> src/value.rs:170:32
Dec 18 15:12:31.708 INFO [stderr]     |
Dec 18 15:12:31.708 INFO [stderr] 170 |     pub fn from_reader(id: u8, mut src: &mut io::Read) -> Result<Value> {
Dec 18 15:12:31.708 INFO [stderr]     |                                ----^^^
Dec 18 15:12:31.708 INFO [stderr]     |                                |
Dec 18 15:12:31.708 INFO [stderr]     |                                help: remove this `mut`
Dec 18 15:12:31.708 INFO [stderr] 
Dec 18 15:12:31.724 INFO [stderr] warning: variable does not need to be mutable
Dec 18 15:12:31.724 INFO [stderr]    --> src/value.rs:309:14
Dec 18 15:12:31.724 INFO [stderr]     |
Dec 18 15:12:31.724 INFO [stderr] 309 | fn read_utf8(mut src: &mut io::Read, len: usize) -> Result<String> {
Dec 18 15:12:31.724 INFO [stderr]     |              ----^^^
Dec 18 15:12:31.724 INFO [stderr]     |              |
Dec 18 15:12:31.724 INFO [stderr]     |              help: remove this `mut`
Dec 18 15:12:31.724 INFO [stderr] 
Dec 18 15:12:31.840 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Dec 18 15:12:32.584 INFO running `"docker" "inspect" "ad660d5d7573f3e1823710490ac43cbea20ca327d28b4ff3f85f462eb169f0ec"`
Dec 18 15:12:32.888 INFO running `"docker" "rm" "-f" "ad660d5d7573f3e1823710490ac43cbea20ca327d28b4ff3f85f462eb169f0ec"`
Dec 18 15:12:33.212 INFO [stdout] ad660d5d7573f3e1823710490ac43cbea20ca327d28b4ff3f85f462eb169f0ec