[INFO] fetching crate grpc-web-client 0.1.2...
[INFO] checking grpc-web-client-0.1.2 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate grpc-web-client 0.1.2 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate grpc-web-client 0.1.2 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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-45/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded wasm-streams v0.1.2
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[INFO] [stdout] 7c5abd99630265543e2aa41c0b1fedcdce744e48d63390dee52ec23c719497eb
[INFO] running `Command { std: "docker" "start" "-a" "7c5abd99630265543e2aa41c0b1fedcdce744e48d63390dee52ec23c719497eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c5abd99630265543e2aa41c0b1fedcdce744e48d63390dee52ec23c719497eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5abd99630265543e2aa41c0b1fedcdce744e48d63390dee52ec23c719497eb", kill_on_drop: false }`
[INFO] [stdout] 7c5abd99630265543e2aa41c0b1fedcdce744e48d63390dee52ec23c719497eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9fb184d323427f25a53c95076b15a47749a01a14ec25c27a820b06f63ef8942
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[INFO] [stderr]     Checking grpc-web-client v0.1.2 (/opt/rustwide/workdir)
[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] 
[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: 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] 
[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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.03s
[INFO] running `Command { std: "docker" "inspect" "b9fb184d323427f25a53c95076b15a47749a01a14ec25c27a820b06f63ef8942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9fb184d323427f25a53c95076b15a47749a01a14ec25c27a820b06f63ef8942", kill_on_drop: false }`
[INFO] [stdout] b9fb184d323427f25a53c95076b15a47749a01a14ec25c27a820b06f63ef8942