[INFO] fetching crate mailgun_v3 0.14.0... [INFO] checking mailgun_v3-0.14.0 against master#52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6 for pr-127907 [INFO] extracting crate mailgun_v3 0.14.0 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate mailgun_v3 0.14.0 on toolchain 52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mailgun_v3 0.14.0 [INFO] finished tweaking crates.io crate mailgun_v3 0.14.0 [INFO] tweaked toml for crates.io crate mailgun_v3 0.14.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate crates.io crate mailgun_v3 0.14.0 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" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] warning: spurious network error (3 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 4803 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (3 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 4803 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (3 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 4803 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (3 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 4803 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (3 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 4803 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (2 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (2 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (2 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (2 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (2 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (1 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (1 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (1 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (1 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] warning: spurious network error (1 tries remaining): [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [INFO] [stderr] error: failed to download from `https://static.crates.io/crates/cxx-build/1.0.85/download` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] [7] Couldn't connect to server (Failed to connect to static.crates.io port 443 after 0 ms: Couldn't connect to server) [ERROR] this task or one of its parent failed! [ERROR] command failed: exit status: 101 [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking mailgun_v3-0.14.0 against try#6223d840318ac1f9c8b6bf3aef24c3ff67683479 for pr-127907 [INFO] extracting crate mailgun_v3 0.14.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate mailgun_v3 0.14.0 on toolchain 6223d840318ac1f9c8b6bf3aef24c3ff67683479 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6223d840318ac1f9c8b6bf3aef24c3ff67683479" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mailgun_v3 0.14.0 [INFO] finished tweaking crates.io crate mailgun_v3 0.14.0 [INFO] tweaked toml for crates.io crate mailgun_v3 0.14.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate mailgun_v3 0.14.0 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" "+6223d840318ac1f9c8b6bf3aef24c3ff67683479" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cxxbridge-flags v1.0.85 [INFO] [stderr] Downloaded assert-json-diff v2.0.1 [INFO] [stderr] Downloaded cxx-build v1.0.85 [INFO] [stderr] Downloaded cxxbridge-macro v1.0.85 [INFO] [stderr] Downloaded cxx v1.0.85 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6223d840318ac1f9c8b6bf3aef24c3ff67683479" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1be908df01c8ad99071d4561133789402ad17d1ca9b254188cc016d691e440e1 [INFO] running `Command { std: "docker" "start" "-a" "1be908df01c8ad99071d4561133789402ad17d1ca9b254188cc016d691e440e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1be908df01c8ad99071d4561133789402ad17d1ca9b254188cc016d691e440e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1be908df01c8ad99071d4561133789402ad17d1ca9b254188cc016d691e440e1", kill_on_drop: false }` [INFO] [stdout] 1be908df01c8ad99071d4561133789402ad17d1ca9b254188cc016d691e440e1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6223d840318ac1f9c8b6bf3aef24c3ff67683479" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7bb6dffe1169fb3f6610cea5c34a481951a66dbd5e5576504c79183756192d26 [INFO] running `Command { std: "docker" "start" "-a" "7bb6dffe1169fb3f6610cea5c34a481951a66dbd5e5576504c79183756192d26", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling proc-macro2 v1.0.49 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling pkg-config v0.3.24 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling parking_lot_core v0.9.1 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Checking pin-project-lite v0.2.8 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling tokio v1.23.0 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Checking lock_api v0.4.6 [INFO] [stderr] Compiling indexmap v1.8.0 [INFO] [stderr] Compiling httparse v1.6.0 [INFO] [stderr] Checking matches v0.1.9 [INFO] [stderr] Compiling openssl v0.10.38 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Checking tracing-core v0.1.23 [INFO] [stderr] Checking slab v0.4.5 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking http v0.2.6 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking once_cell v1.10.0 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Checking tinyvec v1.5.1 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 try-lock v0.2.3 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking httpdate v1.0.2 [INFO] [stderr] Checking unicode-bidi v0.3.7 [INFO] [stderr] Compiling encoding_rs v0.8.30 [INFO] [stderr] Compiling mime_guess v2.0.4 [INFO] [stderr] Checking tracing v0.1.32 [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" "7bb6dffe1169fb3f6610cea5c34a481951a66dbd5e5576504c79183756192d26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7bb6dffe1169fb3f6610cea5c34a481951a66dbd5e5576504c79183756192d26", kill_on_drop: false }` [INFO] [stdout] 7bb6dffe1169fb3f6610cea5c34a481951a66dbd5e5576504c79183756192d26