[INFO] fetching crate grpc-web-client 0.1.2...
[INFO] checking grpc-web-client-0.1.2 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate grpc-web-client 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate grpc-web-client 0.1.2 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23328bc60e17466e77e977ce69f1d5836a1b8614d882883b330b5e79cb849b21
[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" "23328bc60e17466e77e977ce69f1d5836a1b8614d882883b330b5e79cb849b21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23328bc60e17466e77e977ce69f1d5836a1b8614d882883b330b5e79cb849b21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23328bc60e17466e77e977ce69f1d5836a1b8614d882883b330b5e79cb849b21", kill_on_drop: false }`
[INFO] [stdout] 23328bc60e17466e77e977ce69f1d5836a1b8614d882883b330b5e79cb849b21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c098d5649458192cf9643941cd54380156705979f0e330f24105bcf6f2415b94
[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" "c098d5649458192cf9643941cd54380156705979f0e330f24105bcf6f2415b94", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.74
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
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[INFO] [stderr]     Checking tracing-core v0.1.18
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[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking tokio-util v0.6.7
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[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
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[INFO] [stderr]    Compiling async-stream-impl v0.3.2
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[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]     Checking async-stream v0.3.2
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[INFO] [stderr]     Checking web-sys v0.3.51
[INFO] [stderr]     Checking wasm-streams v0.1.2
[INFO] [stderr]     Checking 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] 
[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: 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: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "c098d5649458192cf9643941cd54380156705979f0e330f24105bcf6f2415b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c098d5649458192cf9643941cd54380156705979f0e330f24105bcf6f2415b94", kill_on_drop: false }`
[INFO] [stdout] c098d5649458192cf9643941cd54380156705979f0e330f24105bcf6f2415b94