[INFO] updating cached repository jeromefroe/echo-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jeromefroe/echo-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jeromefroe/echo-rs" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jeromefroe/echo-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jeromefroe/echo-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jeromefroe/echo-rs" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jeromefroe/echo-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jeromefroe/echo-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5a906a440f3edc24b95f0f257b2f66377c8a6dcb
[INFO] sha for GitHub repo jeromefroe/echo-rs: 5a906a440f3edc24b95f0f257b2f66377c8a6dcb
[INFO] validating manifest of jeromefroe/echo-rs on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jeromefroe/echo-rs on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jeromefroe/echo-rs
[INFO] finished frobbing jeromefroe/echo-rs
[INFO] frobbed toml for jeromefroe/echo-rs written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jeromefroe/echo-rs/Cargo.toml
[INFO] started frobbing jeromefroe/echo-rs
[INFO] finished frobbing jeromefroe/echo-rs
[INFO] frobbed toml for jeromefroe/echo-rs written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jeromefroe/echo-rs/Cargo.toml
[INFO] crate jeromefroe/echo-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jeromefroe/echo-rs against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-0/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jeromefroe/echo-rs:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7dc7e66182db79ca2acdea3c39a84f3762f5c5873089e6877aa920c88514d363
[INFO] running `"docker" "start" "-a" "7dc7e66182db79ca2acdea3c39a84f3762f5c5873089e6877aa920c88514d363"`
[INFO] [stderr]    Compiling openssl v0.8.3
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking futures v0.1.3
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling openssl-sys v0.7.17
[INFO] [stderr]     Checking openssl-verify v0.2.0
[INFO] [stderr]     Checking mio v0.6.0
[INFO] [stderr]     Checking tokio-core v0.1.0
[INFO] [stderr]     Checking tokio-tls v0.1.0 (https://github.com/tokio-rs/tokio-tls#3d49e52e)
[INFO] [stderr]     Checking echo-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Evented`
[INFO] [stderr]  --> src/bin/echo_mio.rs:6:48
[INFO] [stderr]   |
[INFO] [stderr] 6 | use mio::{Token, Ready, Events, Poll, PollOpt, Evented};
[INFO] [stderr]   |                                                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Evented`
[INFO] [stderr]  --> src/bin/echo_mio.rs:6:48
[INFO] [stderr]   |
[INFO] [stderr] 6 | use mio::{Token, Ready, Events, Poll, PollOpt, Evented};
[INFO] [stderr]   |                                                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `buf`
[INFO] [stderr]   --> src/bin/echo_mio.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     buf: [u8; 512],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bin/echo_mio.rs:104:25
[INFO] [stderr]     |
[INFO] [stderr] 104 |                         poll.deregister(&conn.handle);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `buf`
[INFO] [stderr]   --> src/bin/echo_mio.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     buf: [u8; 512],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bin/echo_mio.rs:104:25
[INFO] [stderr]     |
[INFO] [stderr] 104 |                         poll.deregister(&conn.handle);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.63s
[INFO] running `"docker" "inspect" "7dc7e66182db79ca2acdea3c39a84f3762f5c5873089e6877aa920c88514d363"`
[INFO] running `"docker" "rm" "-f" "7dc7e66182db79ca2acdea3c39a84f3762f5c5873089e6877aa920c88514d363"`
[INFO] [stdout] 7dc7e66182db79ca2acdea3c39a84f3762f5c5873089e6877aa920c88514d363