[INFO] fetching crate tf-bindgen 0.1.0...
[INFO] testing tf-bindgen-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate tf-bindgen 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate tf-bindgen 0.1.0
[INFO] finished tweaking crates.io crate tf-bindgen 0.1.0
[INFO] tweaked toml for crates.io crate tf-bindgen 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tf-bindgen 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tf-bindgen 0.1.0 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tf-bindgen-core v0.1.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.6
[INFO] [stderr]   Downloaded derive_builder v0.12.0
[INFO] [stderr]   Downloaded darling v0.14.4
[INFO] [stderr]   Downloaded darling_core v0.14.4
[INFO] [stderr]   Downloaded derive_builder_macro v0.12.0
[INFO] [stderr]   Downloaded derive_builder_core v0.12.0
[INFO] [stderr]   Downloaded tf-bindgen-codegen v0.1.0
[INFO] [stderr]   Downloaded anyhow v1.0.70
[INFO] [stderr]   Downloaded semver v1.0.16
[INFO] [stderr]   Downloaded serde_json v1.0.95
[INFO] [stderr]   Downloaded toml v0.7.2
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] [stderr]   Downloaded digest v0.10.6
[INFO] [stderr]   Downloaded itoa v1.0.5
[INFO] [stderr]   Downloaded serde v1.0.152
[INFO] [stderr]   Downloaded nom8 v0.2.0
[INFO] [stderr]   Downloaded toml_edit v0.19.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.53
[INFO] [stderr]   Downloaded tf-bindgen-cli v0.1.0
[INFO] [stderr]   Downloaded libc v0.2.140
[INFO] [stderr]   Downloaded typenum v1.16.0
[INFO] [stderr]   Downloaded tf-bindgen-schema v0.1.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.6
[INFO] [stderr]   Downloaded serde_spanned v0.6.1
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded serde_derive v1.0.152
[INFO] [stderr]   Downloaded either v1.8.1
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded darling_macro v0.14.4
[INFO] [stderr]   Downloaded heck v0.4.1
[INFO] [stderr]   Downloaded ryu v1.0.12
[INFO] [stderr]   Downloaded indexmap v1.9.2
[INFO] [stderr]   Downloaded toml_datetime v0.6.1
[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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 638e0ac8eaec3a14f3a5625970549dcede193bf8877132b6378d350b5395f47d
[INFO] running `Command { std: "docker" "start" "-a" "638e0ac8eaec3a14f3a5625970549dcede193bf8877132b6378d350b5395f47d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "638e0ac8eaec3a14f3a5625970549dcede193bf8877132b6378d350b5395f47d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "638e0ac8eaec3a14f3a5625970549dcede193bf8877132b6378d350b5395f47d", kill_on_drop: false }`
[INFO] [stdout] 638e0ac8eaec3a14f3a5625970549dcede193bf8877132b6378d350b5395f47d
[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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fad750eb2dd70aaa25f83f8c03646315d0f1869bf66e8c05386f68e8a2ac539a
[INFO] running `Command { std: "docker" "start" "-a" "fad750eb2dd70aaa25f83f8c03646315d0f1869bf66e8c05386f68e8a2ac539a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.95
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cpufeatures v0.2.6
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.53/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 nom8 v0.2.0
[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" "fad750eb2dd70aaa25f83f8c03646315d0f1869bf66e8c05386f68e8a2ac539a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fad750eb2dd70aaa25f83f8c03646315d0f1869bf66e8c05386f68e8a2ac539a", kill_on_drop: false }`
[INFO] [stdout] fad750eb2dd70aaa25f83f8c03646315d0f1869bf66e8c05386f68e8a2ac539a