[INFO] fetching crate download-async 0.10.10...
[INFO] checking download-async-0.10.10 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate download-async 0.10.10 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate download-async 0.10.10 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate download-async 0.10.10
[INFO] removed 2 missing examples
[INFO] finished tweaking crates.io crate download-async 0.10.10
[INFO] tweaked toml for crates.io crate download-async 0.10.10 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate download-async 0.10.10 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures v0.3.27
[INFO] [stderr]   Downloaded futures-executor v0.3.27
[INFO] [stderr]   Downloaded futures-io v0.3.27
[INFO] [stderr]   Downloaded futures-macro v0.3.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e302b66ade1b062f6c59261ba30b0136dec2b1bb95894d094324ca606ce9f7af
[INFO] running `Command { std: "docker" "start" "-a" "e302b66ade1b062f6c59261ba30b0136dec2b1bb95894d094324ca606ce9f7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e302b66ade1b062f6c59261ba30b0136dec2b1bb95894d094324ca606ce9f7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e302b66ade1b062f6c59261ba30b0136dec2b1bb95894d094324ca606ce9f7af", kill_on_drop: false }`
[INFO] [stdout] e302b66ade1b062f6c59261ba30b0136dec2b1bb95894d094324ca606ce9f7af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccc015c1df435e44b2b9513b07ab58dac468e6fb3f513fddccb3fba73ecebe73
[INFO] running `Command { std: "docker" "start" "-a" "ccc015c1df435e44b2b9513b07ab58dac468e6fb3f513fddccb3fba73ecebe73", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]     Checking futures-sink v0.3.27
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]     Checking futures-io v0.3.27
[INFO] [stderr]    Compiling openssl v0.10.48
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking brotli-decompressor v2.3.4
[INFO] [stderr]    Compiling openssl-sys v0.9.83
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.54/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ccc015c1df435e44b2b9513b07ab58dac468e6fb3f513fddccb3fba73ecebe73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccc015c1df435e44b2b9513b07ab58dac468e6fb3f513fddccb3fba73ecebe73", kill_on_drop: false }`
[INFO] [stdout] ccc015c1df435e44b2b9513b07ab58dac468e6fb3f513fddccb3fba73ecebe73
