[INFO] fetching crate praiya 0.4.0...
[INFO] testing praiya-0.4.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate praiya 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate praiya 0.4.0
[INFO] finished tweaking crates.io crate praiya 0.4.0
[INFO] tweaked toml for crates.io crate praiya 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate praiya 0.4.0 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 praiya 0.4.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.74
[INFO] [stderr]   Downloaded uuid v1.2.1
[INFO] [stderr]   Downloaded socket2 v0.4.7
[INFO] [stderr]   Downloaded futures-sink v0.3.25
[INFO] [stderr]   Downloaded futures-core v0.3.25
[INFO] [stderr]   Downloaded slugify v0.1.0
[INFO] [stderr]   Downloaded serde_qs v0.10.1
[INFO] [stderr]   Downloaded rustls-native-certs v0.6.2
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.1
[INFO] [stderr]   Downloaded paste v1.0.9
[INFO] [stderr]   Downloaded futures-task v0.3.25
[INFO] [stderr]   Downloaded futures-channel v0.3.25
[INFO] [stderr]   Downloaded futures-io v0.3.25
[INFO] [stderr]   Downloaded ct-logs v0.9.0
[INFO] [stderr]   Downloaded hyper-rustls v0.23.0
[INFO] [stderr]   Downloaded arrayvec v0.7.2
[INFO] [stderr]   Downloaded phf_codegen v0.11.1
[INFO] [stderr]   Downloaded chrono-tz-build v0.0.3
[INFO] [stderr]   Downloaded env_logger v0.9.1
[INFO] [stderr]   Downloaded uncased v0.9.7
[INFO] [stderr]   Downloaded unidecode v0.3.0
[INFO] [stderr]   Downloaded mio v0.8.5
[INFO] [stderr]   Downloaded tokio-util v0.7.4
[INFO] [stderr]   Downloaded security-framework v2.7.0
[INFO] [stderr]   Downloaded futures-macro v0.3.25
[INFO] [stderr]   Downloaded webpki-roots v0.22.5
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded futures-util v0.3.25
[INFO] [stderr]   Downloaded hyper v0.14.22
[INFO] [stderr]   Downloaded chrono-tz v0.6.3
[INFO] [stderr]   Downloaded praiya-macro v0.1.1
[INFO] [stderr]   Downloaded rustls v0.20.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 86ae1aab17b3f4c33bb43eb85a66bd0283c986dd47af91fb84646b049bd269a3
[INFO] running `Command { std: "docker" "start" "-a" "86ae1aab17b3f4c33bb43eb85a66bd0283c986dd47af91fb84646b049bd269a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86ae1aab17b3f4c33bb43eb85a66bd0283c986dd47af91fb84646b049bd269a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86ae1aab17b3f4c33bb43eb85a66bd0283c986dd47af91fb84646b049bd269a3", kill_on_drop: false }`
[INFO] [stdout] 86ae1aab17b3f4c33bb43eb85a66bd0283c986dd47af91fb84646b049bd269a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9ffe95a600bef3fef4e8034b2cbfc2f06a4acfb08d7c1970919d91e33e0bcec0
[INFO] running `Command { std: "docker" "start" "-a" "9ffe95a600bef3fef4e8034b2cbfc2f06a4acfb08d7c1970919d91e33e0bcec0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling uncased v0.9.7
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 rand_core v0.6.4
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling phf_shared v0.11.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling itoa v1.0.4
[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" "9ffe95a600bef3fef4e8034b2cbfc2f06a4acfb08d7c1970919d91e33e0bcec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ffe95a600bef3fef4e8034b2cbfc2f06a4acfb08d7c1970919d91e33e0bcec0", kill_on_drop: false }`
[INFO] [stdout] 9ffe95a600bef3fef4e8034b2cbfc2f06a4acfb08d7c1970919d91e33e0bcec0