[INFO] fetching crate pug 0.2.0...
[INFO] testing pug-0.2.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate pug 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate pug 0.2.0
[INFO] finished tweaking crates.io crate pug 0.2.0
[INFO] tweaked toml for crates.io crate pug 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pug 0.2.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pug 0.2.0 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" "+562dee4820c458d823175268e41601d4c060588a" "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 quote v0.6.10
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded proc-macro2 v0.4.24
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.31
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.31
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.31
[INFO] [stderr]   Downloaded generic-array v0.14.6
[INFO] [stderr]   Downloaded cpufeatures v0.2.5
[INFO] [stderr]   Downloaded thiserror-impl v1.0.38
[INFO] [stderr]   Downloaded block-buffer v0.10.3
[INFO] [stderr]   Downloaded sha2 v0.10.6
[INFO] [stderr]   Downloaded thiserror v1.0.38
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded typenum v1.16.0
[INFO] [stderr]   Downloaded pest v2.5.5
[INFO] [stderr]   Downloaded syn v0.15.24
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.31
[INFO] [stderr]   Downloaded pest_meta v2.5.5
[INFO] [stderr]   Downloaded unicode-ident v1.0.6
[INFO] [stderr]   Downloaded pest_generator v2.5.5
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.31
[INFO] [stderr]   Downloaded ucd-trie v0.1.5
[INFO] [stderr]   Downloaded digest v0.10.6
[INFO] [stderr]   Downloaded quote v1.0.23
[INFO] [stderr]   Downloaded log v0.4.6
[INFO] [stderr]   Downloaded pest_derive v2.5.5
[INFO] [stderr]   Downloaded version_check v0.9.4
[INFO] [stderr]   Downloaded cfg-if v0.1.6
[INFO] [stderr]   Downloaded lazy_static v1.2.0
[INFO] [stderr]   Downloaded libc v0.2.139
[INFO] [stderr]   Downloaded once_cell v1.17.1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 437f497fa037f720e52926a9abaa26c8661f69bb36eab678e3d16bc318b99838
[INFO] running `Command { std: "docker" "start" "-a" "437f497fa037f720e52926a9abaa26c8661f69bb36eab678e3d16bc318b99838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "437f497fa037f720e52926a9abaa26c8661f69bb36eab678e3d16bc318b99838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "437f497fa037f720e52926a9abaa26c8661f69bb36eab678e3d16bc318b99838", kill_on_drop: false }`
[INFO] [stdout] 437f497fa037f720e52926a9abaa26c8661f69bb36eab678e3d16bc318b99838
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ab939bc3dff40e6007cff257112f44c2b354b3084d685eb3e043fe6badbaac2
[INFO] running `Command { std: "docker" "start" "-a" "7ab939bc3dff40e6007cff257112f44c2b354b3084d685eb3e043fe6badbaac2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling once_cell v1.17.1
[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] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[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] running `Command { std: "docker" "inspect" "7ab939bc3dff40e6007cff257112f44c2b354b3084d685eb3e043fe6badbaac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ab939bc3dff40e6007cff257112f44c2b354b3084d685eb3e043fe6badbaac2", kill_on_drop: false }`
[INFO] [stdout] 7ab939bc3dff40e6007cff257112f44c2b354b3084d685eb3e043fe6badbaac2