[INFO] fetching crate cargo-nag 0.1.0...
[INFO] checking cargo-nag-0.1.0 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate cargo-nag 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate cargo-nag 0.1.0 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-nag 0.1.0
[INFO] finished tweaking crates.io crate cargo-nag 0.1.0
[INFO] tweaked toml for crates.io crate cargo-nag 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-nag 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded color-spantrace v0.2.0
[INFO] [stderr]   Downloaded object v0.30.2
[INFO] [stderr]   Downloaded gimli v0.27.0
[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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f3f73abf4d8f179a35dd0dea327f5d730ec0785b960993ccc1989c7191b4172
[INFO] running `Command { std: "docker" "start" "-a" "6f3f73abf4d8f179a35dd0dea327f5d730ec0785b960993ccc1989c7191b4172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f3f73abf4d8f179a35dd0dea327f5d730ec0785b960993ccc1989c7191b4172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3f73abf4d8f179a35dd0dea327f5d730ec0785b960993ccc1989c7191b4172", kill_on_drop: false }`
[INFO] [stdout] 6f3f73abf4d8f179a35dd0dea327f5d730ec0785b960993ccc1989c7191b4172
[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" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3b47bd9b6c5be80ed121edce3cf43d487e5186d9f913e4a74f520d571d748c1
[INFO] running `Command { std: "docker" "start" "-a" "b3b47bd9b6c5be80ed121edce3cf43d487e5186d9f913e4a74f520d571d748c1", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking gimli v0.27.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking ryu v1.0.12
[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]     Checking tracing v0.1.37
[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" "b3b47bd9b6c5be80ed121edce3cf43d487e5186d9f913e4a74f520d571d748c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3b47bd9b6c5be80ed121edce3cf43d487e5186d9f913e4a74f520d571d748c1", kill_on_drop: false }`
[INFO] [stdout] b3b47bd9b6c5be80ed121edce3cf43d487e5186d9f913e4a74f520d571d748c1
