[INFO] fetching crate cargo-rx 0.3.0...
[INFO] checking cargo-rx-0.3.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate cargo-rx 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cargo-rx 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cargo-rx 0.3.0
[INFO] tweaked toml for crates.io crate cargo-rx 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-rx 0.3.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cargo-rx 0.3.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shellwords v1.1.0
[INFO] [stderr]   Downloaded cargo-options v0.1.4
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.92
[INFO] [stderr]   Downloaded defer-drop v1.3.0
[INFO] [stderr]   Downloaded cargo_toml v0.11.8
[INFO] [stderr]   Downloaded terminal_size v0.2.5
[INFO] [stderr]   Downloaded home v0.5.4
[INFO] [stderr]   Downloaded vte v0.9.0
[INFO] [stderr]   Downloaded derive_builder v0.9.0
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.92
[INFO] [stderr]   Downloaded cxx-build v1.0.92
[INFO] [stderr]   Downloaded skim v0.9.4
[INFO] [stderr]   Downloaded serde_derive v1.0.155
[INFO] [stderr]   Downloaded unicode-bidi v0.3.11
[INFO] [stderr]   Downloaded tuikit v0.4.6
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] [stderr]   Downloaded sensible-env-logger v0.2.0
[INFO] [stderr]   Downloaded nix v0.19.1
[INFO] [stderr]   Downloaded cxx v1.0.92
[INFO] [stderr]   Downloaded derive_builder_core v0.9.0
[INFO] [stderr]   Downloaded timer v0.2.0
[INFO] [stderr]   Downloaded version-sync v0.9.4
[INFO] [stderr]   Downloaded thiserror-impl v1.0.39
[INFO] [stderr]   Downloaded thiserror v1.0.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84b0fc1349d8e76d9e67b12bff28bcd4f98fcf1c7134888cf0c9b71b29c753b9
[INFO] running `Command { std: "docker" "start" "-a" "84b0fc1349d8e76d9e67b12bff28bcd4f98fcf1c7134888cf0c9b71b29c753b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84b0fc1349d8e76d9e67b12bff28bcd4f98fcf1c7134888cf0c9b71b29c753b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b0fc1349d8e76d9e67b12bff28bcd4f98fcf1c7134888cf0c9b71b29c753b9", kill_on_drop: false }`
[INFO] [stdout] 84b0fc1349d8e76d9e67b12bff28bcd4f98fcf1c7134888cf0c9b71b29c753b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fad0dfe6e44c2d5c05f0106883a029b74de24442cc34891a1225f64b7105f012
[INFO] running `Command { std: "docker" "start" "-a" "fad0dfe6e44c2d5c05f0106883a029b74de24442cc34891a1225f64b7105f012", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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]     Checking termcolor v1.2.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.155
[INFO] [stderr]    Compiling rustix v0.36.9
[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" "fad0dfe6e44c2d5c05f0106883a029b74de24442cc34891a1225f64b7105f012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fad0dfe6e44c2d5c05f0106883a029b74de24442cc34891a1225f64b7105f012", kill_on_drop: false }`
[INFO] [stdout] fad0dfe6e44c2d5c05f0106883a029b74de24442cc34891a1225f64b7105f012