[INFO] updating cached repository dashpipe/echo_pipe
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dashpipe/echo_pipe
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dashpipe/echo_pipe" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/dashpipe/echo_pipe"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/dashpipe/echo_pipe'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dashpipe/echo_pipe" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/dashpipe/echo_pipe"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/dashpipe/echo_pipe'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4f8412591cc2ab1f76d6feb016ef55813b1003f1
[INFO] sha for GitHub repo dashpipe/echo_pipe: 4f8412591cc2ab1f76d6feb016ef55813b1003f1
[INFO] validating manifest of dashpipe/echo_pipe on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dashpipe/echo_pipe on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dashpipe/echo_pipe
[INFO] finished frobbing dashpipe/echo_pipe
[INFO] frobbed toml for dashpipe/echo_pipe written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/dashpipe/echo_pipe/Cargo.toml
[INFO] started frobbing dashpipe/echo_pipe
[INFO] finished frobbing dashpipe/echo_pipe
[INFO] frobbed toml for dashpipe/echo_pipe written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/dashpipe/echo_pipe/Cargo.toml
[INFO] crate dashpipe/echo_pipe already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dashpipe/echo_pipe against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-3/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/dashpipe/echo_pipe:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 96bef0de267d67147b4df307aada1cf562e335626630ac3966650b2dd6da1ab1
[INFO] running `"docker" "start" "-a" "96bef0de267d67147b4df307aada1cf562e335626630ac3966650b2dd6da1ab1"`
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]     Checking echo_pipe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |                 Err(e) => JsonValue::new_object()
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input_type`
[INFO] [stderr]   --> src/input/mod.rs:12:18
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn get_input(input_type: &str) -> Box<Input>{
[INFO] [stderr]    |                  ^^^^^^^^^^ help: consider prefixing with an underscore: `_input_type`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `joiner`
[INFO] [stderr]   --> src/output/stdout_output.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     joiner : JoinHandle<()>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |                 Err(e) => JsonValue::new_object()
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input_type`
[INFO] [stderr]   --> src/input/mod.rs:12:18
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn get_input(input_type: &str) -> Box<Input>{
[INFO] [stderr]    |                  ^^^^^^^^^^ help: consider prefixing with an underscore: `_input_type`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `joiner`
[INFO] [stderr]   --> src/output/stdout_output.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     joiner : JoinHandle<()>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `"docker" "inspect" "96bef0de267d67147b4df307aada1cf562e335626630ac3966650b2dd6da1ab1"`
[INFO] running `"docker" "rm" "-f" "96bef0de267d67147b4df307aada1cf562e335626630ac3966650b2dd6da1ab1"`
[INFO] [stdout] 96bef0de267d67147b4df307aada1cf562e335626630ac3966650b2dd6da1ab1