[INFO] fetching crate watchlog 1.250.0...
[INFO] testing watchlog-1.250.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate watchlog 1.250.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate watchlog 1.250.0
[INFO] finished tweaking crates.io crate watchlog 1.250.0
[INFO] tweaked toml for crates.io crate watchlog 1.250.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate watchlog 1.250.0 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 watchlog 1.250.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.31
[INFO] [stderr]   Downloaded home v0.5.3
[INFO] [stderr]   Downloaded string-error v0.1.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.31
[INFO] [stderr]   Downloaded standard_paths v2.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.82
[INFO] [stderr]   Downloaded result v1.0.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.82
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.92
[INFO] [stderr]   Downloaded serde_ini v0.2.0
[INFO] [stderr]   Downloaded log v0.4.16
[INFO] [stderr]   Downloaded once_cell v1.13.0
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.92
[INFO] [stderr]   Downloaded cxx-build v1.0.92
[INFO] [stderr]   Downloaded js-sys v0.3.59
[INFO] [stderr]   Downloaded cxx v1.0.92
[INFO] [stderr]   Downloaded serde_derive v1.0.155
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.82
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.82
[INFO] [stderr]   Downloaded syn v1.0.104
[INFO] [stderr]   Downloaded simple_config v0.134.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.82
[INFO] [stderr]   Downloaded humanize-rs v0.1.5
[INFO] [stderr]   Downloaded serde-humanize-rs v0.1.1
[INFO] [stderr]   Downloaded bstr v1.9.1
[INFO] [stderr]   Downloaded regex-automata v0.4.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 17c68172691c1d43b812d30eed7ad4a5eedf2528eca8c4d2835a3bafc3b32b9b
[INFO] running `Command { std: "docker" "start" "-a" "17c68172691c1d43b812d30eed7ad4a5eedf2528eca8c4d2835a3bafc3b32b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17c68172691c1d43b812d30eed7ad4a5eedf2528eca8c4d2835a3bafc3b32b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17c68172691c1d43b812d30eed7ad4a5eedf2528eca8c4d2835a3bafc3b32b9b", kill_on_drop: false }`
[INFO] [stdout] 17c68172691c1d43b812d30eed7ad4a5eedf2528eca8c4d2835a3bafc3b32b9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a124450fca6a94db12f2ff3d178509d4a75d70d4f48b1e2e4f538fb5ad209c43
[INFO] running `Command { std: "docker" "start" "-a" "a124450fca6a94db12f2ff3d178509d4a75d70d4f48b1e2e4f538fb5ad209c43", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.104
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling serde v1.0.155
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.155
[INFO] [stderr]    Compiling iana-time-zone v0.1.53
[INFO] [stderr]    Compiling humanize-rs v0.1.5
[INFO] [stderr]    Compiling result v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling string-error v0.1.0
[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] [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" "a124450fca6a94db12f2ff3d178509d4a75d70d4f48b1e2e4f538fb5ad209c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a124450fca6a94db12f2ff3d178509d4a75d70d4f48b1e2e4f538fb5ad209c43", kill_on_drop: false }`
[INFO] [stdout] a124450fca6a94db12f2ff3d178509d4a75d70d4f48b1e2e4f538fb5ad209c43