[INFO] fetching crate libreddit 0.30.1...
[INFO] testing libreddit-0.30.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate libreddit 0.30.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate libreddit 0.30.1
[INFO] finished tweaking crates.io crate libreddit 0.30.1
[INFO] tweaked toml for crates.io crate libreddit 0.30.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate libreddit 0.30.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libreddit 0.30.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_threads v0.1.6
[INFO] [stderr]   Downloaded rust-embed-utils v7.3.0
[INFO] [stderr]   Downloaded async_once v0.2.6
[INFO] [stderr]   Downloaded libflate_lz77 v1.1.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.6
[INFO] [stderr]   Downloaded serde_yaml v0.9.17
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.5
[INFO] [stderr]   Downloaded cached_proc_macro_types v0.1.0
[INFO] [stderr]   Downloaded base64 v0.21.0
[INFO] [stderr]   Downloaded askama_derive v0.11.2
[INFO] [stderr]   Downloaded build_html v2.2.0
[INFO] [stderr]   Downloaded mime_guess v2.0.4
[INFO] [stderr]   Downloaded schannel v0.1.21
[INFO] [stderr]   Downloaded libflate v1.2.0
[INFO] [stderr]   Downloaded rusty-forkfork v0.4.0
[INFO] [stderr]   Downloaded brotli-decompressor v2.3.4
[INFO] [stderr]   Downloaded tokio v1.24.2
[INFO] [stderr]   Downloaded route-recognizer v0.3.1
[INFO] [stderr]   Downloaded io-lifetimes v1.0.5
[INFO] [stderr]   Downloaded brotli v3.3.4
[INFO] [stderr]   Downloaded security-framework v2.7.0
[INFO] [stderr]   Downloaded fs_extra v1.2.0
[INFO] [stderr]   Downloaded clap_lex v0.3.1
[INFO] [stderr]   Downloaded tokio-util v0.7.4
[INFO] [stderr]   Downloaded rustls v0.20.8
[INFO] [stderr]   Downloaded h2 v0.3.15
[INFO] [stderr]   Downloaded hyper v0.14.23
[INFO] [stderr]   Downloaded rustix v0.36.8
[INFO] [stderr]   Downloaded sha2 v0.10.6
[INFO] [stderr]   Downloaded sealed_test_derive v1.0.0
[INFO] [stderr]   Downloaded async-trait v0.1.61
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.2
[INFO] [stderr]   Downloaded rust-embed-impl v6.3.1
[INFO] [stderr]   Downloaded bstr v1.1.0
[INFO] [stderr]   Downloaded globset v0.4.10
[INFO] [stderr]   Downloaded askama_shared v0.12.2
[INFO] [stderr]   Downloaded askama v0.11.1
[INFO] [stderr]   Downloaded cached_proc_macro v0.16.0
[INFO] [stderr]   Downloaded cached v0.42.0
[INFO] [stderr]   Downloaded lipsum v0.8.2
[INFO] [stderr]   Downloaded tempfile v3.4.0
[INFO] [stderr]   Downloaded url v2.3.1
[INFO] [stderr]   Downloaded web-sys v0.3.60
[INFO] [stderr]   Downloaded form_urlencoded v1.1.0
[INFO] [stderr]   Downloaded windows-targets v0.42.1
[INFO] [stderr]   Downloaded sealed_test v1.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded rust-embed v6.4.2
[INFO] [stderr]   Downloaded clap v4.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f44a3d847f3a3b36406a695c9dcdeeafbd9f3f7ae8e6f812b9a34f22dac82985
[INFO] running `Command { std: "docker" "start" "-a" "f44a3d847f3a3b36406a695c9dcdeeafbd9f3f7ae8e6f812b9a34f22dac82985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f44a3d847f3a3b36406a695c9dcdeeafbd9f3f7ae8e6f812b9a34f22dac82985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f44a3d847f3a3b36406a695c9dcdeeafbd9f3f7ae8e6f812b9a34f22dac82985", kill_on_drop: false }`
[INFO] [stdout] f44a3d847f3a3b36406a695c9dcdeeafbd9f3f7ae8e6f812b9a34f22dac82985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aefe83178907a078a3edb1aca229377616c61e1274acc8442c978f45d56e5d11
[INFO] running `Command { std: "docker" "start" "-a" "aefe83178907a078a3edb1aca229377616c61e1274acc8442c978f45d56e5d11", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[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 libc v0.2.139
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling tokio v1.24.2
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[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" "aefe83178907a078a3edb1aca229377616c61e1274acc8442c978f45d56e5d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aefe83178907a078a3edb1aca229377616c61e1274acc8442c978f45d56e5d11", kill_on_drop: false }`
[INFO] [stdout] aefe83178907a078a3edb1aca229377616c61e1274acc8442c978f45d56e5d11