Nov 28 23:53:43.940 INFO checking hematite-nbt-0.3.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 23:53:43.941 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 23:53:44.446 INFO [stdout] 101eff4af2547f9078630d5a8e4764ea7720d6dd6be8e5ea5988e4bd0eef105e
Nov 28 23:53:44.448 INFO running `"docker" "start" "-a" "101eff4af2547f9078630d5a8e4764ea7720d6dd6be8e5ea5988e4bd0eef105e"`
Nov 28 23:53:46.871 INFO [stderr] usermod: no changes
Nov 28 23:53:46.936 INFO [stderr]     Checking hematite-nbt v0.3.0 (/source)
Nov 28 23:53:48.748 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:48.749 INFO [stderr]   --> src/blob.rs:50:24
Nov 28 23:53:48.750 INFO [stderr]    |
Nov 28 23:53:48.751 INFO [stderr] 50 |     pub fn from_reader(mut src: &mut io::Read) -> Result<Blob> {
Nov 28 23:53:48.751 INFO [stderr]    |                        ----^^^
Nov 28 23:53:48.752 INFO [stderr]    |                        |
Nov 28 23:53:48.752 INFO [stderr]    |                        help: remove this `mut`
Nov 28 23:53:48.753 INFO [stderr]    |
Nov 28 23:53:48.753 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 23:53:48.754 INFO [stderr] 
Nov 28 23:53:48.803 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:48.803 INFO [stderr]   --> src/value.rs:88:32
Nov 28 23:53:48.803 INFO [stderr]    |
Nov 28 23:53:48.803 INFO [stderr] 88 |     pub fn write_header(&self, mut dst: &mut io::Write, title: &str) -> Result<()> {
Nov 28 23:53:48.803 INFO [stderr]    |                                ----^^^
Nov 28 23:53:48.803 INFO [stderr]    |                                |
Nov 28 23:53:48.803 INFO [stderr]    |                                help: remove this `mut`
Nov 28 23:53:48.803 INFO [stderr] 
Nov 28 23:53:48.836 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:48.836 INFO [stderr]   --> src/value.rs:96:25
Nov 28 23:53:48.836 INFO [stderr]    |
Nov 28 23:53:48.836 INFO [stderr] 96 |     pub fn write(&self, mut dst: &mut io::Write) -> Result<()> {
Nov 28 23:53:48.836 INFO [stderr]    |                         ----^^^
Nov 28 23:53:48.836 INFO [stderr]    |                         |
Nov 28 23:53:48.837 INFO [stderr]    |                         help: remove this `mut`
Nov 28 23:53:48.856 INFO [stderr] 
Nov 28 23:53:48.856 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:48.856 INFO [stderr]    --> src/value.rs:155:24
Nov 28 23:53:48.856 INFO [stderr]     |
Nov 28 23:53:48.857 INFO [stderr] 155 |     pub fn read_header(mut src: &mut io::Read) -> Result<(u8, String)> {
Nov 28 23:53:48.857 INFO [stderr]     |                        ----^^^
Nov 28 23:53:48.857 INFO [stderr]     |                        |
Nov 28 23:53:48.857 INFO [stderr]     |                        help: remove this `mut`
Nov 28 23:53:48.857 INFO [stderr] 
Nov 28 23:53:48.864 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:48.864 INFO [stderr]    --> src/value.rs:170:32
Nov 28 23:53:48.864 INFO [stderr]     |
Nov 28 23:53:48.865 INFO [stderr] 170 |     pub fn from_reader(id: u8, mut src: &mut io::Read) -> Result<Value> {
Nov 28 23:53:48.865 INFO [stderr]     |                                ----^^^
Nov 28 23:53:48.865 INFO [stderr]     |                                |
Nov 28 23:53:48.865 INFO [stderr]     |                                help: remove this `mut`
Nov 28 23:53:48.876 INFO [stderr] 
Nov 28 23:53:48.901 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:48.901 INFO [stderr]    --> src/value.rs:309:14
Nov 28 23:53:48.902 INFO [stderr]     |
Nov 28 23:53:48.902 INFO [stderr] 309 | fn read_utf8(mut src: &mut io::Read, len: usize) -> Result<String> {
Nov 28 23:53:48.902 INFO [stderr]     |              ----^^^
Nov 28 23:53:48.903 INFO [stderr]     |              |
Nov 28 23:53:48.903 INFO [stderr]     |              help: remove this `mut`
Nov 28 23:53:48.903 INFO [stderr] 
Nov 28 23:53:49.240 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:49.241 INFO [stderr]   --> src/blob.rs:50:24
Nov 28 23:53:49.241 INFO [stderr]    |
Nov 28 23:53:49.242 INFO [stderr] 50 |     pub fn from_reader(mut src: &mut io::Read) -> Result<Blob> {
Nov 28 23:53:49.242 INFO [stderr]    |                        ----^^^
Nov 28 23:53:49.243 INFO [stderr]    |                        |
Nov 28 23:53:49.243 INFO [stderr]    |                        help: remove this `mut`
Nov 28 23:53:49.244 INFO [stderr]    |
Nov 28 23:53:49.244 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 23:53:49.245 INFO [stderr] 
Nov 28 23:53:49.271 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:49.271 INFO [stderr]   --> src/value.rs:88:32
Nov 28 23:53:49.271 INFO [stderr]    |
Nov 28 23:53:49.271 INFO [stderr] 88 |     pub fn write_header(&self, mut dst: &mut io::Write, title: &str) -> Result<()> {
Nov 28 23:53:49.271 INFO [stderr]    |                                ----^^^
Nov 28 23:53:49.271 INFO [stderr]    |                                |
Nov 28 23:53:49.271 INFO [stderr]    |                                help: remove this `mut`
Nov 28 23:53:49.271 INFO [stderr] 
Nov 28 23:53:49.280 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:49.280 INFO [stderr]   --> src/value.rs:96:25
Nov 28 23:53:49.280 INFO [stderr]    |
Nov 28 23:53:49.280 INFO [stderr] 96 |     pub fn write(&self, mut dst: &mut io::Write) -> Result<()> {
Nov 28 23:53:49.280 INFO [stderr]    |                         ----^^^
Nov 28 23:53:49.280 INFO [stderr]    |                         |
Nov 28 23:53:49.280 INFO [stderr]    |                         help: remove this `mut`
Nov 28 23:53:49.280 INFO [stderr] 
Nov 28 23:53:49.281 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:49.281 INFO [stderr]    --> src/value.rs:155:24
Nov 28 23:53:49.282 INFO [stderr]     |
Nov 28 23:53:49.282 INFO [stderr] 155 |     pub fn read_header(mut src: &mut io::Read) -> Result<(u8, String)> {
Nov 28 23:53:49.282 INFO [stderr]     |                        ----^^^
Nov 28 23:53:49.282 INFO [stderr]     |                        |
Nov 28 23:53:49.282 INFO [stderr]     |                        help: remove this `mut`
Nov 28 23:53:49.282 INFO [stderr] 
Nov 28 23:53:49.288 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:49.288 INFO [stderr]    --> src/value.rs:170:32
Nov 28 23:53:49.288 INFO [stderr]     |
Nov 28 23:53:49.288 INFO [stderr] 170 |     pub fn from_reader(id: u8, mut src: &mut io::Read) -> Result<Value> {
Nov 28 23:53:49.288 INFO [stderr]     |                                ----^^^
Nov 28 23:53:49.288 INFO [stderr]     |                                |
Nov 28 23:53:49.288 INFO [stderr]     |                                help: remove this `mut`
Nov 28 23:53:49.288 INFO [stderr] 
Nov 28 23:53:49.303 INFO [stderr] warning: variable does not need to be mutable
Nov 28 23:53:49.303 INFO [stderr]    --> src/value.rs:309:14
Nov 28 23:53:49.304 INFO [stderr]     |
Nov 28 23:53:49.304 INFO [stderr] 309 | fn read_utf8(mut src: &mut io::Read, len: usize) -> Result<String> {
Nov 28 23:53:49.304 INFO [stderr]     |              ----^^^
Nov 28 23:53:49.304 INFO [stderr]     |              |
Nov 28 23:53:49.304 INFO [stderr]     |              help: remove this `mut`
Nov 28 23:53:49.304 INFO [stderr] 
Nov 28 23:53:49.412 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
Nov 28 23:53:49.415 INFO [stderr] su: No module specific data is present
Nov 28 23:53:50.428 INFO running `"docker" "inspect" "101eff4af2547f9078630d5a8e4764ea7720d6dd6be8e5ea5988e4bd0eef105e"`
Nov 28 23:53:50.703 INFO running `"docker" "rm" "-f" "101eff4af2547f9078630d5a8e4764ea7720d6dd6be8e5ea5988e4bd0eef105e"`
Nov 28 23:53:50.953 INFO [stdout] 101eff4af2547f9078630d5a8e4764ea7720d6dd6be8e5ea5988e4bd0eef105e