[INFO] cloning repository https://github.com/ajn404/digital_garden
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ajn404/digital_garden" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajn404%2Fdigital_garden", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajn404%2Fdigital_garden'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bfb0515c0f9fdcdd9afa023ff40acb08a83db2a8
[INFO] testing ajn404/digital_garden/bfb0515c0f9fdcdd9afa023ff40acb08a83db2a8 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajn404%2Fdigital_garden" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ajn404/digital_garden on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ajn404/digital_garden
[INFO] finished tweaking git repo https://github.com/ajn404/digital_garden
[INFO] tweaked toml for git repo https://github.com/ajn404/digital_garden written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ajn404/digital_garden 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 310435dcba0f146e06222371447f8afddd03ecbe5be81d398f2169dfaac41437
[INFO] running `Command { std: "docker" "start" "-a" "310435dcba0f146e06222371447f8afddd03ecbe5be81d398f2169dfaac41437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "310435dcba0f146e06222371447f8afddd03ecbe5be81d398f2169dfaac41437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "310435dcba0f146e06222371447f8afddd03ecbe5be81d398f2169dfaac41437", kill_on_drop: false }`
[INFO] [stdout] 310435dcba0f146e06222371447f8afddd03ecbe5be81d398f2169dfaac41437
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8437c14977a8ddd4a8d159baac0383a0bcf8b7e046737699433ed4b73152138d
[INFO] running `Command { std: "docker" "start" "-a" "8437c14977a8ddd4a8d159baac0383a0bcf8b7e046737699433ed4b73152138d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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 indenter v0.3.3
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling object v0.30.3
[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" "8437c14977a8ddd4a8d159baac0383a0bcf8b7e046737699433ed4b73152138d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8437c14977a8ddd4a8d159baac0383a0bcf8b7e046737699433ed4b73152138d", kill_on_drop: false }`
[INFO] [stdout] 8437c14977a8ddd4a8d159baac0383a0bcf8b7e046737699433ed4b73152138d