[INFO] fetching crate fgr-rs 0.1.0...
[INFO] checking fgr-rs-0.1.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate fgr-rs 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate fgr-rs 0.1.0 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 fgr-rs 0.1.0
[INFO] finished tweaking crates.io crate fgr-rs 0.1.0
[INFO] tweaked toml for crates.io crate fgr-rs 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate fgr-rs 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.87
[INFO] [stderr]   Downloaded dot-writer v0.1.3
[INFO] [stderr]   Downloaded nnf v0.1.0
[INFO] [stderr]   Downloaded ctrlc v3.2.4
[INFO] [stderr]   Downloaded kanal v0.1.0-pre8
[INFO] [stderr]   Downloaded infer v0.12.0
[INFO] [stderr]   Downloaded uuid v1.2.2
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.87
[INFO] [stderr]   Downloaded bstr v1.1.0
[INFO] [stderr]   Downloaded cxx-build v1.0.87
[INFO] [stderr]   Downloaded cxx v1.0.87
[INFO] [stderr]   Downloaded timeout-readwrite v0.3.3
[INFO] [stderr]   Downloaded unix_mode v0.1.3
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7815b9206ca32efc11e35748787b2bdd918f9c2c5e7fbc1a4974b3cca73e2b28
[INFO] running `Command { std: "docker" "start" "-a" "7815b9206ca32efc11e35748787b2bdd918f9c2c5e7fbc1a4974b3cca73e2b28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7815b9206ca32efc11e35748787b2bdd918f9c2c5e7fbc1a4974b3cca73e2b28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7815b9206ca32efc11e35748787b2bdd918f9c2c5e7fbc1a4974b3cca73e2b28", kill_on_drop: false }`
[INFO] [stdout] 7815b9206ca32efc11e35748787b2bdd918f9c2c5e7fbc1a4974b3cca73e2b28
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcbc31630ff19c4462d7d40e1784fffdb3872c34562165eb22daa7df9e751087
[INFO] running `Command { std: "docker" "start" "-a" "fcbc31630ff19c4462d7d40e1784fffdb3872c34562165eb22daa7df9e751087", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling io-lifetimes v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustix v0.36.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]     Checking bstr v1.1.0
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking uuid v1.2.2
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking clap_lex v0.3.1
[INFO] [stderr]     Checking iana-time-zone v0.1.53
[INFO] [stderr]     Checking dot-writer v0.1.3
[INFO] [stderr]     Checking cfb v0.7.3
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking kanal v0.1.0-pre8
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking nnf v0.1.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking unix_mode v0.1.3
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/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 tempfile v3.3.0
[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" "fcbc31630ff19c4462d7d40e1784fffdb3872c34562165eb22daa7df9e751087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcbc31630ff19c4462d7d40e1784fffdb3872c34562165eb22daa7df9e751087", kill_on_drop: false }`
[INFO] [stdout] fcbc31630ff19c4462d7d40e1784fffdb3872c34562165eb22daa7df9e751087
