[INFO] fetching crate grpc-web-client 0.1.2...
[INFO] building grpc-web-client-0.1.2 against master#a7f375789bab1a4e4a291c963081a8ca7d2b6bd7 for pr-93180
[INFO] extracting crate grpc-web-client 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate grpc-web-client 0.1.2 on toolchain a7f375789bab1a4e4a291c963081a8ca7d2b6bd7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grpc-web-client 0.1.2
[INFO] finished tweaking crates.io crate grpc-web-client 0.1.2
[INFO] tweaked toml for crates.io crate grpc-web-client 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f3bac868baec4e171a8a0fa0e752cef54cdc6269cb967e21d8816eea27d67900
[INFO] running `Command { std: "docker" "start" "-a" "f3bac868baec4e171a8a0fa0e752cef54cdc6269cb967e21d8816eea27d67900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3bac868baec4e171a8a0fa0e752cef54cdc6269cb967e21d8816eea27d67900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3bac868baec4e171a8a0fa0e752cef54cdc6269cb967e21d8816eea27d67900", kill_on_drop: false }`
[INFO] [stdout] f3bac868baec4e171a8a0fa0e752cef54cdc6269cb967e21d8816eea27d67900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 492b90f45028372e0720cfe2de9f4b521b3855438b9fb56e1c29a45fc21ec8e3
[INFO] running `Command { std: "docker" "start" "-a" "492b90f45028372e0720cfe2de9f4b521b3855438b9fb56e1c29a45fc21ec8e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.79
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.79
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling tokio v1.16.1
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tokio-stream v0.1.8
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.79
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.79
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.79
[INFO] [stderr]    Compiling async-stream v0.3.2
[INFO] [stderr]    Compiling pin-project v1.0.10
[INFO] [stderr]    Compiling js-sys v0.3.56
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling futures-executor v0.3.19
[INFO] [stderr]    Compiling tonic v0.4.3
[INFO] [stderr]    Compiling hyper v0.14.16
[INFO] [stderr]    Compiling futures v0.3.19
[INFO] [stderr]    Compiling web-sys v0.3.56
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.29
[INFO] [stderr]    Compiling wasm-streams v0.1.2
[INFO] [stderr]    Compiling grpc-web-client v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `GRPC_WEB`
[INFO] [stdout]   --> src/call.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub(crate) const GRPC_WEB: &str = "application/grpc-web";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_grpc_web`
[INFO] [stdout]   --> src/call.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub(crate) fn is_grpc_web(headers: &HeaderMap) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `content_type`
[INFO] [stdout]   --> src/call.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn content_type(headers: &HeaderMap) -> Option<&str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Encode`
[INFO] [stdout]   --> src/call.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Encode,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Mode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/call.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[derive(Copy, Clone, PartialEq, Debug)]
[INFO] [stdout]    |                ^^^^^             ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `server_request`
[INFO] [stdout]   --> src/call.rs:85:19
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub(crate) fn server_request(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `server_response`
[INFO] [stdout]   --> src/call.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn server_response(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `client_request`
[INFO] [stdout]   --> src/call.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub(crate) fn client_request(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_accept`
[INFO] [stdout]    --> src/call.rs:402:19
[INFO] [stdout]     |
[INFO] [stdout] 402 |     pub(crate) fn from_accept(headers: &HeaderMap) -> Encoding {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "492b90f45028372e0720cfe2de9f4b521b3855438b9fb56e1c29a45fc21ec8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "492b90f45028372e0720cfe2de9f4b521b3855438b9fb56e1c29a45fc21ec8e3", kill_on_drop: false }`
[INFO] [stdout] 492b90f45028372e0720cfe2de9f4b521b3855438b9fb56e1c29a45fc21ec8e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2dc52f01e3111199fde821e8f6343ead06c4ae64fef23ee0f71ab51cf40be3f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c2dc52f01e3111199fde821e8f6343ead06c4ae64fef23ee0f71ab51cf40be3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling grpc-web-client v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `GRPC_WEB`
[INFO] [stdout]   --> src/call.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub(crate) const GRPC_WEB: &str = "application/grpc-web";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_grpc_web`
[INFO] [stdout]   --> src/call.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub(crate) fn is_grpc_web(headers: &HeaderMap) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `content_type`
[INFO] [stdout]   --> src/call.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn content_type(headers: &HeaderMap) -> Option<&str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Encode`
[INFO] [stdout]   --> src/call.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Encode,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Mode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/call.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[derive(Copy, Clone, PartialEq, Debug)]
[INFO] [stdout]    |                ^^^^^             ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `server_request`
[INFO] [stdout]   --> src/call.rs:85:19
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub(crate) fn server_request(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `server_response`
[INFO] [stdout]   --> src/call.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn server_response(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `client_request`
[INFO] [stdout]   --> src/call.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub(crate) fn client_request(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_accept`
[INFO] [stdout]    --> src/call.rs:402:19
[INFO] [stdout]     |
[INFO] [stdout] 402 |     pub(crate) fn from_accept(headers: &HeaderMap) -> Encoding {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_grpc_web`
[INFO] [stdout]   --> src/call.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub(crate) fn is_grpc_web(headers: &HeaderMap) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `content_type`
[INFO] [stdout]   --> src/call.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn content_type(headers: &HeaderMap) -> Option<&str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Encode`
[INFO] [stdout]   --> src/call.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Encode,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Mode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/call.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[derive(Copy, Clone, PartialEq, Debug)]
[INFO] [stdout]    |                ^^^^^             ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `server_request`
[INFO] [stdout]   --> src/call.rs:85:19
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub(crate) fn server_request(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `server_response`
[INFO] [stdout]   --> src/call.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn server_response(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `client_request`
[INFO] [stdout]   --> src/call.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub(crate) fn client_request(inner: B, encoding: Encoding) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "c2dc52f01e3111199fde821e8f6343ead06c4ae64fef23ee0f71ab51cf40be3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2dc52f01e3111199fde821e8f6343ead06c4ae64fef23ee0f71ab51cf40be3f", kill_on_drop: false }`
[INFO] [stdout] c2dc52f01e3111199fde821e8f6343ead06c4ae64fef23ee0f71ab51cf40be3f