[INFO] fetching crate grpc 0.8.3...
[INFO] checking grpc-0.8.3 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate grpc 0.8.3 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate grpc 0.8.3 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grpc 0.8.3
[INFO] finished tweaking crates.io crate grpc 0.8.3
[INFO] tweaked toml for crates.io crate grpc 0.8.3 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 9738ea898e25c1acce690be05e017d30c90d6df7fd0988c985b5ace8538e406a
[INFO] running `Command { std: "docker" "start" "-a" "9738ea898e25c1acce690be05e017d30c90d6df7fd0988c985b5ace8538e406a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9738ea898e25c1acce690be05e017d30c90d6df7fd0988c985b5ace8538e406a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9738ea898e25c1acce690be05e017d30c90d6df7fd0988c985b5ace8538e406a", kill_on_drop: false }`
[INFO] [stdout] 9738ea898e25c1acce690be05e017d30c90d6df7fd0988c985b5ace8538e406a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--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] 390a8f3a408e6b0f5de85282de2fe81c54c78e740d3f0b280d98f8e848b51201
[INFO] running `Command { std: "docker" "start" "-a" "390a8f3a408e6b0f5de85282de2fe81c54c78e740d3f0b280d98f8e848b51201", kill_on_drop: false }`
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling log-ndc-env-logger v0.2.0
[INFO] [stderr]     Checking grpc v0.8.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stdout] warning: field is never read: `conf`
[INFO] [stdout]   --> src/server/mod.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     conf: ServerConf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]   --> src/req.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     sender: Option<mpsc::Sender<T>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/client.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |         assert!(result.is_err(), result);
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 29 |         assert!(result.is_err(), "{}", result);
[INFO] [stdout]    |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/client.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |         assert!(result.is_err(), result);
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 52 |         assert!(result.is_err(), "{}", result);
[INFO] [stdout]    |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `conf`
[INFO] [stdout]   --> src/server/mod.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     conf: ServerConf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]   --> src/req.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     sender: Option<mpsc::Sender<T>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "390a8f3a408e6b0f5de85282de2fe81c54c78e740d3f0b280d98f8e848b51201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390a8f3a408e6b0f5de85282de2fe81c54c78e740d3f0b280d98f8e848b51201", kill_on_drop: false }`
[INFO] [stdout] 390a8f3a408e6b0f5de85282de2fe81c54c78e740d3f0b280d98f8e848b51201