[INFO] fetching crate flowgger 0.3.1...
[INFO] checking flowgger-0.3.1 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate flowgger 0.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate flowgger 0.3.1 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flowgger 0.3.1
[INFO] finished tweaking crates.io crate flowgger 0.3.1
[INFO] tweaked toml for crates.io crate flowgger 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate flowgger 0.3.1 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-xml-rs v0.5.1
[INFO] [stderr]   Downloaded net2 v0.2.38
[INFO] [stderr]   Downloaded fsevent-sys v2.0.1
[INFO] [stderr]   Downloaded ref_slice v1.2.1
[INFO] [stderr]   Downloaded build_const v0.2.2
[INFO] [stderr]   Downloaded fsevent v0.4.0
[INFO] [stderr]   Downloaded phf_codegen v0.10.0
[INFO] [stderr]   Downloaded core_affinity v0.7.6
[INFO] [stderr]   Downloaded generator v0.7.2
[INFO] [stderr]   Downloaded capnpc v0.10.2
[INFO] [stderr]   Downloaded crc v1.8.1
[INFO] [stderr]   Downloaded capnp v0.10.3
[INFO] [stderr]   Downloaded capnp v0.14.11
[INFO] [stderr]   Downloaded object v0.30.0
[INFO] [stderr]   Downloaded time-tz v0.3.1
[INFO] [stderr]   Downloaded kafka v0.8.0
[INFO] [stderr]   Downloaded gimli v0.27.0
[INFO] [stderr]   Downloaded may v0.3.31
[INFO] [stderr]   Downloaded redis v0.21.7
[INFO] [stderr]   Downloaded may_queue v0.1.10
[INFO] [stderr]   Downloaded miow v0.5.0
[INFO] [stderr]   Downloaded filetime v0.2.19
[INFO] [stderr]   Downloaded inotify v0.7.1
[INFO] [stderr]   Downloaded notify v4.0.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de308c4a18183897c64cb360d35abc0771d1bf5568b96084b4b8e26b6f8f07dc
[INFO] running `Command { std: "docker" "start" "-a" "de308c4a18183897c64cb360d35abc0771d1bf5568b96084b4b8e26b6f8f07dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de308c4a18183897c64cb360d35abc0771d1bf5568b96084b4b8e26b6f8f07dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de308c4a18183897c64cb360d35abc0771d1bf5568b96084b4b8e26b6f8f07dc", kill_on_drop: false }`
[INFO] [stdout] de308c4a18183897c64cb360d35abc0771d1bf5568b96084b4b8e26b6f8f07dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfc5eeb84b2321e09f607e7dda7b1d6da1006645c30572e6b803ea43054dc23c
[INFO] running `Command { std: "docker" "start" "-a" "bfc5eeb84b2321e09f607e7dda7b1d6da1006645c30572e6b803ea43054dc23c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[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 cc v1.0.78
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/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 thiserror v1.0.38
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stdout] error: aborting due to 1 previous error
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bfc5eeb84b2321e09f607e7dda7b1d6da1006645c30572e6b803ea43054dc23c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc5eeb84b2321e09f607e7dda7b1d6da1006645c30572e6b803ea43054dc23c", kill_on_drop: false }`
[INFO] [stdout] bfc5eeb84b2321e09f607e7dda7b1d6da1006645c30572e6b803ea43054dc23c
