[INFO] fetching crate forked-tarpc 0.31.1...
[INFO] checking forked-tarpc-0.31.1 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate forked-tarpc 0.31.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate forked-tarpc 0.31.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate forked-tarpc 0.31.1
[INFO] tweaked toml for crates.io crate forked-tarpc 0.31.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate forked-tarpc 0.31.1 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate forked-tarpc 0.31.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ba31f735f38b5e0d41037ce08235db8a84ba8e48e003df779e60eef98db2e83
[INFO] running `Command { std: "docker" "start" "-a" "6ba31f735f38b5e0d41037ce08235db8a84ba8e48e003df779e60eef98db2e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ba31f735f38b5e0d41037ce08235db8a84ba8e48e003df779e60eef98db2e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba31f735f38b5e0d41037ce08235db8a84ba8e48e003df779e60eef98db2e83", kill_on_drop: false }`
[INFO] [stdout] 6ba31f735f38b5e0d41037ce08235db8a84ba8e48e003df779e60eef98db2e83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3ea82985b8c6251b4ae471db86d1a84ad5401569296ffb2a890a8175264b04f
[INFO] running `Command { std: "docker" "start" "-a" "a3ea82985b8c6251b4ae471db86d1a84ad5401569296ffb2a890a8175264b04f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling async-trait v0.1.56
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]    Compiling serde_derive v1.0.139
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking integer-encoding v3.0.4
[INFO] [stderr]    Compiling trybuild v1.0.63
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.5
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking thrift v0.15.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking serde_json v1.0.82
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_bytes v0.11.6
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling pin-project-internal v1.0.11
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling enum-ordinalize v3.1.11
[INFO] [stderr]    Compiling tarpc-plugins v0.12.0
[INFO] [stderr]    Compiling educe v0.4.19
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking futures-util v0.3.21
[INFO] [stderr]     Checking pin-project v1.0.11
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking tracing-subscriber v0.3.14
[INFO] [stderr]     Checking tokio-serde v0.8.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking futures-test v0.3.21
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking forked-tarpc v0.31.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking opentelemetry v0.17.0
[INFO] [stderr]     Checking opentelemetry-semantic-conventions v0.9.0
[INFO] [stdout] warning: trait `PollContext` is never used
[INFO] [stdout]    --> src/lib.rs:392:18
[INFO] [stdout]     |
[INFO] [stdout] 392 | pub(crate) trait PollContext<T> {
[INFO] [stdout]     |                  ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SpanExt` is never used
[INFO] [stdout]    --> src/context.rs:150:18
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub(crate) trait SpanExt {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking opentelemetry-jaeger v0.16.0
[INFO] [stdout] warning: trait `PollContext` is never used
[INFO] [stdout]    --> src/lib.rs:392:18
[INFO] [stdout]     |
[INFO] [stdout] 392 | pub(crate) trait PollContext<T> {
[INFO] [stdout]     |                  ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unwrap` is never used
[INFO] [stdout]    --> src/client.rs:855:12
[INFO] [stdout]     |
[INFO] [stdout] 853 |     trait PollTest {
[INFO] [stdout]     |           -------- method in this trait
[INFO] [stdout] 854 |         type T;
[INFO] [stdout] 855 |         fn unwrap(self) -> Poll<Self::T>;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SpanExt` is never used
[INFO] [stdout]    --> src/context.rs:150:18
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub(crate) trait SpanExt {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.33s
[INFO] running `Command { std: "docker" "inspect" "a3ea82985b8c6251b4ae471db86d1a84ad5401569296ffb2a890a8175264b04f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3ea82985b8c6251b4ae471db86d1a84ad5401569296ffb2a890a8175264b04f", kill_on_drop: false }`
[INFO] [stdout] a3ea82985b8c6251b4ae471db86d1a84ad5401569296ffb2a890a8175264b04f