[INFO] fetching crate forked-tarpc 0.31.1... [INFO] checking forked-tarpc-0.31.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate forked-tarpc 0.31.1 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate forked-tarpc 0.31.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-0-tc1/source/Cargo.toml [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tracing-opentelemetry v0.17.4 [INFO] [stderr] Downloaded tarpc-plugins v0.12.0 [INFO] [stderr] Downloaded enum-ordinalize v3.1.11 [INFO] [stderr] Downloaded thread_local v1.1.4 [INFO] [stderr] Downloaded ordered-float v1.1.1 [INFO] [stderr] Downloaded tokio-serde v0.8.0 [INFO] [stderr] Downloaded futures-test v0.3.21 [INFO] [stderr] Downloaded opentelemetry-semantic-conventions v0.9.0 [INFO] [stderr] Downloaded thrift v0.15.0 [INFO] [stderr] Downloaded opentelemetry-jaeger v0.16.0 [INFO] [stderr] Downloaded tracing-subscriber v0.3.14 [INFO] [stderr] Downloaded educe v0.4.19 [INFO] [stderr] Downloaded tokio-util v0.7.4 [INFO] [stderr] Downloaded tokio v1.21.2 [INFO] [stderr] Downloaded crossbeam-channel v0.5.5 [INFO] [stderr] Downloaded trybuild v1.0.63 [INFO] [stderr] Downloaded opentelemetry v0.17.0 [INFO] [stderr] Downloaded serde v1.0.139 [INFO] [stderr] Downloaded async-trait v0.1.56 [INFO] [stderr] Downloaded crossbeam-utils v0.8.10 [INFO] [stderr] Downloaded pin-project-internal v1.0.11 [INFO] [stderr] Downloaded pin-project v1.0.11 [INFO] [stderr] Downloaded serde_derive v1.0.139 [INFO] [stderr] Downloaded integer-encoding v3.0.4 [INFO] [stderr] Downloaded serde_bytes v0.11.6 [INFO] [stderr] Downloaded tracing-attributes v0.1.22 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 575bacfd8d7ac79adfb2585b788d9bf940fe0de952220af03481a9f50ef42e59 [INFO] running `Command { std: "docker" "start" "-a" "575bacfd8d7ac79adfb2585b788d9bf940fe0de952220af03481a9f50ef42e59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "575bacfd8d7ac79adfb2585b788d9bf940fe0de952220af03481a9f50ef42e59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "575bacfd8d7ac79adfb2585b788d9bf940fe0de952220af03481a9f50ef42e59", kill_on_drop: false }` [INFO] [stdout] 575bacfd8d7ac79adfb2585b788d9bf940fe0de952220af03481a9f50ef42e59 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ac297ef2bbd8949613152b5d319d3db6e1a5538e095b9616c5156dad67a5c6a7 [INFO] running `Command { std: "docker" "start" "-a" "ac297ef2bbd8949613152b5d319d3db6e1a5538e095b9616c5156dad67a5c6a7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling serde v1.0.139 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Checking slab v0.4.6 [INFO] [stderr] Compiling tokio v1.21.2 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking parking_lot_core v0.9.3 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [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_json v1.0.82 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Compiling serde_derive v1.0.139 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking mio v0.8.4 [INFO] [stderr] Compiling trybuild v1.0.63 [INFO] [stderr] Checking integer-encoding v3.0.4 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking tracing-log v0.1.3 [INFO] [stderr] Checking assert_matches v1.5.0 [INFO] [stderr] Checking crossbeam-channel v0.5.5 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Checking ordered-float v1.1.1 [INFO] [stderr] Checking thrift v0.15.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking matchers v0.1.0 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking toml v0.5.9 [INFO] [stderr] Checking serde_bytes v0.11.6 [INFO] [stderr] Compiling futures-macro v0.3.21 [INFO] [stderr] Compiling tokio-macros v1.8.0 [INFO] [stderr] Compiling pin-project-internal v1.0.11 [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 pin-project v1.0.11 [INFO] [stderr] Checking thiserror v1.0.31 [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] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/trace.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | convert::TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/client.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | convert::TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/context.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | convert::TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/server.rs:26:11 [INFO] [stdout] | [INFO] [stdout] 26 | use std::{convert::TryFrom, error::Error, fmt, marker::PhantomData, pin::Pin}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/server/limits/channels_per_key.rs:16:35 [INFO] [stdout] | [INFO] [stdout] 16 | collections::hash_map::Entry, convert::TryFrom, fmt, hash::Hash, marker::Unpin, pin::Pin, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/server/limits/channels_per_key.rs:16:70 [INFO] [stdout] | [INFO] [stdout] 16 | collections::hash_map::Entry, convert::TryFrom, fmt, hash::Hash, marker::Unpin, pin::Pin, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `PollContext` is never used [INFO] [stdout] --> src/lib.rs:392:18 [INFO] [stdout] | [INFO] [stdout] 392 | pub(crate) trait PollContext { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking opentelemetry-semantic-conventions v0.9.0 [INFO] [stderr] Checking opentelemetry-jaeger v0.16.0 [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/trace.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | convert::TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/client.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | convert::TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/client.rs:625:9 [INFO] [stdout] | [INFO] [stdout] 625 | convert::TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/context.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | convert::TryFrom, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/server.rs:26:11 [INFO] [stdout] | [INFO] [stdout] 26 | use std::{convert::TryFrom, error::Error, fmt, marker::PhantomData, pin::Pin}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/server/limits/channels_per_key.rs:16:35 [INFO] [stdout] | [INFO] [stdout] 16 | collections::hash_map::Entry, convert::TryFrom, fmt, hash::Hash, marker::Unpin, pin::Pin, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/server/limits/channels_per_key.rs:16:70 [INFO] [stdout] | [INFO] [stdout] 16 | collections::hash_map::Entry, convert::TryFrom, fmt, hash::Hash, marker::Unpin, pin::Pin, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Future` is imported redundantly [INFO] [stdout] --> src/server.rs:807:9 [INFO] [stdout] | [INFO] [stdout] 806 | prelude::*, [INFO] [stdout] | ---------- the item `Future` is already imported here [INFO] [stdout] 807 | Future, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `PollContext` is never used [INFO] [stdout] --> src/lib.rs:392:18 [INFO] [stdout] | [INFO] [stdout] 392 | pub(crate) trait PollContext { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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; [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] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.93s [INFO] running `Command { std: "docker" "inspect" "ac297ef2bbd8949613152b5d319d3db6e1a5538e095b9616c5156dad67a5c6a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac297ef2bbd8949613152b5d319d3db6e1a5538e095b9616c5156dad67a5c6a7", kill_on_drop: false }` [INFO] [stdout] ac297ef2bbd8949613152b5d319d3db6e1a5538e095b9616c5156dad67a5c6a7