[INFO] fetching crate urcl-rs 0.1.2...
[INFO] testing urcl-rs-0.1.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate urcl-rs 0.1.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate urcl-rs 0.1.2
[INFO] finished tweaking crates.io crate urcl-rs 0.1.2
[INFO] tweaked toml for crates.io crate urcl-rs 0.1.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate urcl-rs 0.1.2 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 urcl-rs 0.1.2 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 proc-macro2 v1.0.49
[INFO] [stderr]   Downloaded uwl v0.6.0
[INFO] [stderr]   Downloaded socket2 v0.4.7
[INFO] [stderr]   Downloaded mio v0.8.5
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.85
[INFO] [stderr]   Downloaded futures-core v0.3.25
[INFO] [stderr]   Downloaded time-core v0.1.0
[INFO] [stderr]   Downloaded time-macros v0.2.6
[INFO] [stderr]   Downloaded utf8-width v0.1.6
[INFO] [stderr]   Downloaded async-trait v0.1.60
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.85
[INFO] [stderr]   Downloaded png v0.17.7
[INFO] [stderr]   Downloaded cxx-build v1.0.85
[INFO] [stderr]   Downloaded flate2 v1.0.25
[INFO] [stderr]   Downloaded security-framework v2.7.0
[INFO] [stderr]   Downloaded http v0.2.8
[INFO] [stderr]   Downloaded chrono v0.4.23
[INFO] [stderr]   Downloaded h2 v0.3.15
[INFO] [stderr]   Downloaded hyper v0.14.23
[INFO] [stderr]   Downloaded reqwest v0.11.13
[INFO] [stderr]   Downloaded futures-util v0.3.25
[INFO] [stderr]   Downloaded serde_json v1.0.91
[INFO] [stderr]   Downloaded indexmap v1.9.2
[INFO] [stderr]   Downloaded time v0.3.17
[INFO] [stderr]   Downloaded tokio v1.23.0
[INFO] [stderr]   Downloaded futures v0.3.25
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.1
[INFO] [stderr]   Downloaded serenity v0.11.5
[INFO] [stderr]   Downloaded tokio-util v0.7.4
[INFO] [stderr]   Downloaded miniz_oxide v0.6.2
[INFO] [stderr]   Downloaded schannel v0.1.20
[INFO] [stderr]   Downloaded futures-sink v0.3.25
[INFO] [stderr]   Downloaded ryu v1.0.12
[INFO] [stderr]   Downloaded getrandom v0.2.8
[INFO] [stderr]   Downloaded block-buffer v0.10.3
[INFO] [stderr]   Downloaded generic-array v0.14.6
[INFO] [stderr]   Downloaded thiserror-impl v1.0.38
[INFO] [stderr]   Downloaded async-tungstenite v0.17.2
[INFO] [stderr]   Downloaded scratch v1.0.3
[INFO] [stderr]   Downloaded command_attr v0.4.1
[INFO] [stderr]   Downloaded parking_lot_core v0.9.5
[INFO] [stderr]   Downloaded cxx v1.0.85
[INFO] [stderr]   Downloaded futures-channel v0.3.25
[INFO] [stderr]   Downloaded futures-task v0.3.25
[INFO] [stderr]   Downloaded slab v0.4.7
[INFO] [stderr]   Downloaded ipnet v2.7.0
[INFO] [stderr]   Downloaded security-framework-sys v2.6.1
[INFO] [stderr]   Downloaded tokio-native-tls v0.3.0
[INFO] [stderr]   Downloaded ordered-float v2.10.0
[INFO] [stderr]   Downloaded itoa v1.0.5
[INFO] [stderr]   Downloaded tracing-attributes v0.1.23
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[INFO] [stderr]   Downloaded thiserror v1.0.38
[INFO] [stderr]   Downloaded iana-time-zone v0.1.53
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.33
[INFO] [stderr]   Downloaded tracing-core v0.1.30
[INFO] [stderr]   Downloaded typemap_rev v0.1.5
[INFO] [stderr]   Downloaded levenshtein v1.0.5
[INFO] [stderr]   Downloaded futures-io v0.3.25
[INFO] [stderr]   Downloaded toml v0.5.10
[INFO] [stderr]   Downloaded rustversion v1.0.11
[INFO] [stderr]   Downloaded tokio-macros v1.8.2
[INFO] [stderr]   Downloaded encoding_rs v0.8.31
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d7b980bb3b41b690bcd41df3564d89dc0c40eb55ce49d9450dc2fc4d0ada0d0
[INFO] running `Command { std: "docker" "start" "-a" "5d7b980bb3b41b690bcd41df3564d89dc0c40eb55ce49d9450dc2fc4d0ada0d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d7b980bb3b41b690bcd41df3564d89dc0c40eb55ce49d9450dc2fc4d0ada0d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d7b980bb3b41b690bcd41df3564d89dc0c40eb55ce49d9450dc2fc4d0ada0d0", kill_on_drop: false }`
[INFO] [stdout] 5d7b980bb3b41b690bcd41df3564d89dc0c40eb55ce49d9450dc2fc4d0ada0d0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7278b418cf652d5663cf42721d0463cd653ef8044e24afac68c0b21435492e24
[INFO] running `Command { std: "docker" "start" "-a" "7278b418cf652d5663cf42721d0463cd653ef8044e24afac68c0b21435492e24", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.83
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling bumpalo v3.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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]    Compiling wasm-bindgen v0.2.83
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling utf8-width v0.1.6
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling strum v0.24.1
[INFO] [stderr]    Compiling html-escape v0.2.13
[INFO] [stderr]    Compiling num-traits v0.2.15
[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" "7278b418cf652d5663cf42721d0463cd653ef8044e24afac68c0b21435492e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7278b418cf652d5663cf42721d0463cd653ef8044e24afac68c0b21435492e24", kill_on_drop: false }`
[INFO] [stdout] 7278b418cf652d5663cf42721d0463cd653ef8044e24afac68c0b21435492e24