[INFO] crate tokio-stdin-stdout 0.1.5 is already in cache
[INFO] extracting crate tokio-stdin-stdout 0.1.5 into work/ex/beta-1.38-1/sources/1.37.0/reg/tokio-stdin-stdout/0.1.5
[INFO] extracting crate tokio-stdin-stdout 0.1.5 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tokio-stdin-stdout/0.1.5
[INFO] validating manifest of tokio-stdin-stdout-0.1.5 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tokio-stdin-stdout-0.1.5 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tokio-stdin-stdout-0.1.5
[INFO] finished frobbing tokio-stdin-stdout-0.1.5
[INFO] frobbed toml for tokio-stdin-stdout-0.1.5 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tokio-stdin-stdout/0.1.5/Cargo.toml
[INFO] started frobbing tokio-stdin-stdout-0.1.5
[INFO] finished frobbing tokio-stdin-stdout-0.1.5
[INFO] frobbed toml for tokio-stdin-stdout-0.1.5 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tokio-stdin-stdout/0.1.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tokio-stdin-stdout-0.1.5 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tokio-stdin-stdout/0.1.5:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] adbe185e01abb277fbd7d43be61059781788012a2764479f358fa3c6ab83d811
[INFO] running `"docker" "start" "-a" "adbe185e01abb277fbd7d43be61059781788012a2764479f358fa3c6ab83d811"`
[INFO] [stderr]    Compiling tokio-stdin-stdout v0.1.5 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |             Err(e) => {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "adbe185e01abb277fbd7d43be61059781788012a2764479f358fa3c6ab83d811"`
[INFO] running `"docker" "rm" "-f" "adbe185e01abb277fbd7d43be61059781788012a2764479f358fa3c6ab83d811"`
[INFO] [stdout] adbe185e01abb277fbd7d43be61059781788012a2764479f358fa3c6ab83d811
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tokio-stdin-stdout/0.1.5:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] ad11bc9e8c698b683bc79bc48d56e4d3054213868f5eb6bc9083b5ca444fa513
[INFO] running `"docker" "start" "-a" "ad11bc9e8c698b683bc79bc48d56e4d3054213868f5eb6bc9083b5ca444fa513"`
[INFO] [stderr]    Compiling tokio-stdin-stdout v0.1.5 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |             Err(e) => {
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/line-by-line.rs:10:35
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn async_op(input: String) -> Box<Future<Item = String, Error = ()> + Send> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = ()> + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `"docker" "inspect" "ad11bc9e8c698b683bc79bc48d56e4d3054213868f5eb6bc9083b5ca444fa513"`
[INFO] running `"docker" "rm" "-f" "ad11bc9e8c698b683bc79bc48d56e4d3054213868f5eb6bc9083b5ca444fa513"`
[INFO] [stdout] ad11bc9e8c698b683bc79bc48d56e4d3054213868f5eb6bc9083b5ca444fa513
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tokio-stdin-stdout/0.1.5:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] f2592634000f239e684c15aa919f70d42484a4d2568cdc2116764574ac6ee395
[INFO] running `"docker" "start" "-a" "f2592634000f239e684c15aa919f70d42484a4d2568cdc2116764574ac6ee395"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tokio_stdin_stdout-2a33155089ca3c2d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tokio-stdin-stdout
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f2592634000f239e684c15aa919f70d42484a4d2568cdc2116764574ac6ee395"`
[INFO] running `"docker" "rm" "-f" "f2592634000f239e684c15aa919f70d42484a4d2568cdc2116764574ac6ee395"`
[INFO] [stdout] f2592634000f239e684c15aa919f70d42484a4d2568cdc2116764574ac6ee395