[INFO] fetching crate rustwrap 1.0.5...
[INFO] testing rustwrap-1.0.5 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate rustwrap 1.0.5 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rustwrap 1.0.5
[INFO] finished tweaking crates.io crate rustwrap 1.0.5
[INFO] tweaked toml for crates.io crate rustwrap 1.0.5 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustwrap 1.0.5 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustwrap 1.0.5 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_derive v2.5.6
[INFO] [stderr]   Downloaded serde_variant v0.1.2
[INFO] [stderr]   Downloaded shared_child v1.0.0
[INFO] [stderr]   Downloaded xz v0.1.0
[INFO] [stderr]   Downloaded tracing-tree v0.2.2
[INFO] [stderr]   Downloaded filetime v0.2.20
[INFO] [stderr]   Downloaded xattr v0.2.3
[INFO] [stderr]   Downloaded duct v0.13.6
[INFO] [stderr]   Downloaded base64 v0.20.0
[INFO] [stderr]   Downloaded tar v0.4.38
[INFO] [stderr]   Downloaded zip v0.6.4
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.7
[INFO] [stderr]   Downloaded hyper v0.14.24
[INFO] [stderr]   Downloaded pest_meta v2.5.6
[INFO] [stderr]   Downloaded serde_yaml v0.9.19
[INFO] [stderr]   Downloaded decompress v0.1.0
[INFO] [stderr]   Downloaded insta v1.18.2
[INFO] [stderr]   Downloaded os_pipe v1.1.3
[INFO] [stderr]   Downloaded pest_generator v2.5.6
[INFO] [stderr]   Downloaded pest v2.5.6
[INFO] [stderr]   Downloaded similar v2.2.1
[INFO] [stderr]   Downloaded jobserver v0.1.26
[INFO] [stderr]   Downloaded zstd-sys v2.0.7+zstd.1.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9735bec6eaedcff2c54d2306f88564081b9a0d8e0a4307405b7eb4b529142b2e
[INFO] running `Command { std: "docker" "start" "-a" "9735bec6eaedcff2c54d2306f88564081b9a0d8e0a4307405b7eb4b529142b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9735bec6eaedcff2c54d2306f88564081b9a0d8e0a4307405b7eb4b529142b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9735bec6eaedcff2c54d2306f88564081b9a0d8e0a4307405b7eb4b529142b2e", kill_on_drop: false }`
[INFO] [stdout] 9735bec6eaedcff2c54d2306f88564081b9a0d8e0a4307405b7eb4b529142b2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a71093ae53c6d19f8913c0e1fdbce53257d3ee9a1cd05f730d7e8daef99647c
[INFO] running `Command { std: "docker" "start" "-a" "0a71093ae53c6d19f8913c0e1fdbce53257d3ee9a1cd05f730d7e8daef99647c", kill_on_drop: false }`
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling futures-sink v0.3.26
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 native-tls v0.2.11
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[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" "0a71093ae53c6d19f8913c0e1fdbce53257d3ee9a1cd05f730d7e8daef99647c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a71093ae53c6d19f8913c0e1fdbce53257d3ee9a1cd05f730d7e8daef99647c", kill_on_drop: false }`
[INFO] [stdout] 0a71093ae53c6d19f8913c0e1fdbce53257d3ee9a1cd05f730d7e8daef99647c