[INFO] updating cached repository sourcepirate/pichu
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sourcepirate/pichu
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sourcepirate/pichu" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/sourcepirate/pichu"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/sourcepirate/pichu'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sourcepirate/pichu" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/sourcepirate/pichu"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/sourcepirate/pichu'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d58b90e27b87ea5dc1d778d8238a2287e6e29db0
[INFO] sha for GitHub repo sourcepirate/pichu: d58b90e27b87ea5dc1d778d8238a2287e6e29db0
[INFO] validating manifest of sourcepirate/pichu on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sourcepirate/pichu on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sourcepirate/pichu
[INFO] finished frobbing sourcepirate/pichu
[INFO] frobbed toml for sourcepirate/pichu written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/sourcepirate/pichu/Cargo.toml
[INFO] started frobbing sourcepirate/pichu
[INFO] finished frobbing sourcepirate/pichu
[INFO] frobbed toml for sourcepirate/pichu written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/sourcepirate/pichu/Cargo.toml
[INFO] crate sourcepirate/pichu already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sourcepirate/pichu against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/sourcepirate/pichu:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 276ba9a3429dcbda3e1be878231243248c715291ce910e38ab4da2b85377cbb5
[INFO] running `"docker" "start" "-a" "276ba9a3429dcbda3e1be878231243248c715291ce910e38ab4da2b85377cbb5"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking pichu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/core.rs:2:33
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Error, BufReader, Read, Write};
[INFO] [stderr]   |                                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/core.rs:2:33
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Error, BufReader, Read, Write};
[INFO] [stderr]   |                                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/core.rs:2:39
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Error, BufReader, Read, Write};
[INFO] [stderr]   |                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/core.rs:2:39
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Error, BufReader, Read, Write};
[INFO] [stderr]   |                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `written`
[INFO] [stderr]   --> src/core.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |                     let written = self.shipper.send(sop.unwrap())?;
[INFO] [stderr]    |                         ^^^^^^^ help: consider prefixing with an underscore: `_written`
[INFO] [stderr] warning: unused variable: `written`
[INFO] [stderr]   --> src/core.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |                     let written = self.shipper.send(sop.unwrap())?;
[INFO] [stderr]    |                         ^^^^^^^ help: consider prefixing with an underscore: `_written`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut lresult = core::LogListener::new(file_path_input.to_str().unwrap(), address);
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut lresult = core::LogListener::new(file_path_input.to_str().unwrap(), address);
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut file = File::open(fp)?;
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut file = File::open(fp)?;
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut reader = BufReader::new(file);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let mut shipper = TcpShipper::new(url.to_owned())?;
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut reader = BufReader::new(file);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let mut shipper = TcpShipper::new(url.to_owned())?;
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "276ba9a3429dcbda3e1be878231243248c715291ce910e38ab4da2b85377cbb5"`
[INFO] running `"docker" "rm" "-f" "276ba9a3429dcbda3e1be878231243248c715291ce910e38ab4da2b85377cbb5"`
[INFO] [stdout] 276ba9a3429dcbda3e1be878231243248c715291ce910e38ab4da2b85377cbb5