[INFO] fetching crate nightly-async-nats 0.27.1...
[INFO] checking nightly-async-nats-0.27.1 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate nightly-async-nats 0.27.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate nightly-async-nats 0.27.1 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nightly-async-nats 0.27.1
[INFO] finished tweaking crates.io crate nightly-async-nats 0.27.1
[INFO] tweaked toml for crates.io crate nightly-async-nats 0.27.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate nightly-async-nats 0.27.1 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64-url v1.4.13
[INFO] [stderr]   Downloaded nuid v0.3.2
[INFO] [stderr]   Downloaded serde_nanos v0.1.2
[INFO] [stderr]   Downloaded signatory v0.23.2
[INFO] [stderr]   Downloaded nkeys v0.2.0
[INFO] [stderr]   Downloaded subslice v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 423949f95f55c2a6a4c30c6a5e810f8e42602cb88b7068d806906eda7f64a4f1
[INFO] running `Command { std: "docker" "start" "-a" "423949f95f55c2a6a4c30c6a5e810f8e42602cb88b7068d806906eda7f64a4f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "423949f95f55c2a6a4c30c6a5e810f8e42602cb88b7068d806906eda7f64a4f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "423949f95f55c2a6a4c30c6a5e810f8e42602cb88b7068d806906eda7f64a4f1", kill_on_drop: false }`
[INFO] [stdout] 423949f95f55c2a6a4c30c6a5e810f8e42602cb88b7068d806906eda7f64a4f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a9d4deaf7517c2d278a57de19a10d9fa48e4b9431dcd01e45121a4f8bbb3034
[INFO] running `Command { std: "docker" "start" "-a" "9a9d4deaf7517c2d278a57de19a10d9fa48e4b9431dcd01e45121a4f8bbb3034", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking const-oid v0.6.2
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking base64ct v1.1.1
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]     Checking der v0.4.5
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking pem-rfc7468 v0.2.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/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]    Compiling rayon-core v1.10.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]     Checking ed25519 v1.5.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stderr]     Checking unicode-width v0.1.10
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9a9d4deaf7517c2d278a57de19a10d9fa48e4b9431dcd01e45121a4f8bbb3034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a9d4deaf7517c2d278a57de19a10d9fa48e4b9431dcd01e45121a4f8bbb3034", kill_on_drop: false }`
[INFO] [stdout] 9a9d4deaf7517c2d278a57de19a10d9fa48e4b9431dcd01e45121a4f8bbb3034
