[INFO] fetching crate tower-grpc 0.1.1...
[INFO] testing tower-grpc-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate tower-grpc 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tower-grpc 0.1.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-grpc 0.1.1
[INFO] finished tweaking crates.io crate tower-grpc 0.1.1
[INFO] tweaked toml for crates.io crate tower-grpc 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83d150eb5908ddf2278456272a7b8ec498fad4e1ebf1454efa7f2c5800cdbf72
[INFO] running `Command { std: "docker" "start" "-a" "83d150eb5908ddf2278456272a7b8ec498fad4e1ebf1454efa7f2c5800cdbf72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83d150eb5908ddf2278456272a7b8ec498fad4e1ebf1454efa7f2c5800cdbf72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d150eb5908ddf2278456272a7b8ec498fad4e1ebf1454efa7f2c5800cdbf72", kill_on_drop: false }`
[INFO] [stdout] 83d150eb5908ddf2278456272a7b8ec498fad4e1ebf1454efa7f2c5800cdbf72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ad2d1d424783c4648d0349192198ab14abef18d809ea6ba094b48405b89cc7a
[INFO] running `Command { std: "docker" "start" "-a" "1ad2d1d424783c4648d0349192198ab14abef18d809ea6ba094b48405b89cc7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling tower-service v0.2.0
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tower-layer v0.1.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling tower-util v0.1.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]    Compiling prost v0.5.0
[INFO] [stderr]    Compiling tower-grpc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/encoding.rs:180:14
[INFO] [stdout]     |
[INFO] [stdout] 180 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/encoding.rs:211:16
[INFO] [stdout]     |
[INFO] [stdout] 211 |         self.0.description()
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/key.rs:270:14
[INFO] [stdout]     |
[INFO] [stdout] 270 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/value.rs:531:14
[INFO] [stdout]     |
[INFO] [stdout] 531 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.83s
[INFO] running `Command { std: "docker" "inspect" "1ad2d1d424783c4648d0349192198ab14abef18d809ea6ba094b48405b89cc7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ad2d1d424783c4648d0349192198ab14abef18d809ea6ba094b48405b89cc7a", kill_on_drop: false }`
[INFO] [stdout] 1ad2d1d424783c4648d0349192198ab14abef18d809ea6ba094b48405b89cc7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f148d610041c80558bd268de51c4ee8a6f3caca69c7d4b63c57abc27bc8a9fd4
[INFO] running `Command { std: "docker" "start" "-a" "f148d610041c80558bd268de51c4ee8a6f3caca69c7d4b63c57abc27bc8a9fd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/encoding.rs:180:14
[INFO] [stdout]     |
[INFO] [stdout] 180 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/encoding.rs:211:16
[INFO] [stdout]     |
[INFO] [stdout] 211 |         self.0.description()
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/key.rs:270:14
[INFO] [stdout]     |
[INFO] [stdout] 270 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/value.rs:531:14
[INFO] [stdout]     |
[INFO] [stdout] 531 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling tower-grpc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/encoding.rs:180:14
[INFO] [stdout]     |
[INFO] [stdout] 180 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:5:24
[INFO] [stdout]     |
[INFO] [stdout] 5   | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/encoding.rs:211:16
[INFO] [stdout]     |
[INFO] [stdout] 211 |         self.0.description()
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/key.rs:270:14
[INFO] [stdout]     |
[INFO] [stdout] 270 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/metadata/value.rs:531:14
[INFO] [stdout]     |
[INFO] [stdout] 531 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.14s
[INFO] running `Command { std: "docker" "inspect" "f148d610041c80558bd268de51c4ee8a6f3caca69c7d4b63c57abc27bc8a9fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f148d610041c80558bd268de51c4ee8a6f3caca69c7d4b63c57abc27bc8a9fd4", kill_on_drop: false }`
[INFO] [stdout] f148d610041c80558bd268de51c4ee8a6f3caca69c7d4b63c57abc27bc8a9fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4117673352dd1fcaf6d0d28f537defc1e9a7da6dacba839f78cb70d24287cabc
[INFO] running `Command { std: "docker" "start" "-a" "4117673352dd1fcaf6d0d28f537defc1e9a7da6dacba839f78cb70d24287cabc", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/metadata/encoding.rs:180:14
[INFO] [stderr]     |
[INFO] [stderr] 180 |         self.description().fmt(f)
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/metadata/encoding.rs:211:16
[INFO] [stderr]     |
[INFO] [stderr] 211 |         self.0.description()
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/metadata/key.rs:270:14
[INFO] [stderr]     |
[INFO] [stderr] 270 |         self.description().fmt(f)
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/metadata/value.rs:531:14
[INFO] [stderr]     |
[INFO] [stderr] 531 |         self.description().fmt(f)
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/metadata/encoding.rs:180:14
[INFO] [stderr]     |
[INFO] [stderr] 180 |         self.description().fmt(f)
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:5:24
[INFO] [stderr]     |
[INFO] [stderr] 5   | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/metadata/encoding.rs:211:16
[INFO] [stderr]     |
[INFO] [stderr] 211 |         self.0.description()
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/metadata/key.rs:270:14
[INFO] [stderr]     |
[INFO] [stderr] 270 |         self.description().fmt(f)
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/metadata/value.rs:531:14
[INFO] [stderr]     |
[INFO] [stderr] 531 |         self.description().fmt(f)
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tower_grpc-352626b6c5c67db4)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test metadata::map::tests::test_from_headers_takes_http_headers ... ok
[INFO] [stdout] test metadata::map::tests::test_keys_categorizes_binary_entries ... ok
[INFO] [stdout] test metadata::map::tests::test_values_mut_categorizes_binary_entries ... ok
[INFO] [stdout] test metadata::value::from_isize ... ok
[INFO] [stdout] test metadata::value::test_debug ... ok
[INFO] [stdout] test metadata::value::from_i16 ... ok
[INFO] [stdout] test metadata::value::from_u32 ... ok
[INFO] [stdout] test metadata::value::from_i64 ... ok
[INFO] [stdout] test metadata::value::test_value_eq_str ... ok
[INFO] [stdout] test metadata::value::test_is_empty ... ok
[INFO] [stdout] test metadata::value::test_from_shared_base64_encodes ... ok
[INFO] [stdout] test status::tests::code_from_i32 ... ok
[INFO] [stdout] test metadata::value::from_u64 ... ok
[INFO] [stdout] test metadata::map::tests::test_iter_mut_categorizes_ascii_entries ... ok
[INFO] [stderr]    Doc-tests tower-grpc
[INFO] [stdout] test metadata::value::test_value_eq_bytes ... ok
[INFO] [stdout] test metadata::map::tests::test_iter_categorizes_binary_entries ... ok
[INFO] [stdout] test metadata::map::tests::test_iter_categorizes_ascii_entries ... ok
[INFO] [stdout] test metadata::map::tests::test_values_categorizes_ascii_entries ... ok
[INFO] [stdout] test metadata::map::tests::test_iter_mut_categorizes_binary_entries ... ok
[INFO] [stdout] test metadata::map::tests::test_values_mut_categorizes_ascii_entries ... ok
[INFO] [stdout] test metadata::value::from_metadata_value_tests::it_can_insert_metadata_key_as_metadata_value ... ok
[INFO] [stdout] test metadata::map::tests::test_values_categorizes_binary_entries ... ok
[INFO] [stdout] test metadata::value::from_i32 ... ok
[INFO] [stdout] test metadata::value::from_usize ... ok
[INFO] [stdout] test metadata::map::tests::test_keys_categorizes_ascii_entries ... ok
[INFO] [stdout] test metadata::map::tests::test_to_headers_encoding ... ok
[INFO] [stdout] test metadata::value::from_u16 ... ok
[INFO] [stdout] test metadata::value::test_value_eq_value ... ok
[INFO] [stdout] test status::tests::from_error_h2 ... ok
[INFO] [stdout] test status::tests::from_error_unknown ... ok
[INFO] [stdout] test status::tests::from_error_nested ... ok
[INFO] [stdout] test status::tests::from_error_status ... ok
[INFO] [stdout] test status::tests::to_h2_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 83 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name tower_grpc --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-f88f2e0650c11f5d.rlib --extern bytes=/opt/rustwide/target/debug/deps/libbytes-0c2efba6fec26a09.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-44f5add10d51ca07.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-f092d5027b43482b.rlib --extern h2=/opt/rustwide/target/debug/deps/libh2-7c2f65936153a87c.rlib --extern http=/opt/rustwide/target/debug/deps/libhttp-8504dbee6fd3ac66.rlib --extern http_body=/opt/rustwide/target/debug/deps/libhttp_body-e500c87cde827620.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-c7a6438e9780af3a.rlib --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-94f4b792093520e3.rlib --extern prost=/opt/rustwide/target/debug/deps/libprost-09a50f0039ca8fce.rlib --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-4460e6bb2c848117.rlib --extern tower_grpc=/opt/rustwide/target/debug/deps/libtower_grpc-9a17f616d153c6aa.rlib --extern tower_service=/opt/rustwide/target/debug/deps/libtower_service-f92ffd3a425ce8c6.rlib --extern tower_util=/opt/rustwide/target/debug/deps/libtower_util-ae8ee46a753bef02.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="prost"' --cfg 'feature="protobuf"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "4117673352dd1fcaf6d0d28f537defc1e9a7da6dacba839f78cb70d24287cabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4117673352dd1fcaf6d0d28f537defc1e9a7da6dacba839f78cb70d24287cabc", kill_on_drop: false }`
[INFO] [stdout] 4117673352dd1fcaf6d0d28f537defc1e9a7da6dacba839f78cb70d24287cabc
