[INFO] cloning repository https://github.com/tanjeetsarkar/rust_autopaper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tanjeetsarkar/rust_autopaper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanjeetsarkar%2Frust_autopaper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanjeetsarkar%2Frust_autopaper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24c5912639930a5971c8fd8a38ab4d746cfd1d7d
[INFO] checking tanjeetsarkar/rust_autopaper against master#5257aee7dd163d21d32fa904578d4fb0f4c91b79 for pr-116494-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanjeetsarkar%2Frust_autopaper" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tanjeetsarkar/rust_autopaper on toolchain 5257aee7dd163d21d32fa904578d4fb0f4c91b79
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5257aee7dd163d21d32fa904578d4fb0f4c91b79" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tanjeetsarkar/rust_autopaper
[INFO] finished tweaking git repo https://github.com/tanjeetsarkar/rust_autopaper
[INFO] tweaked toml for git repo https://github.com/tanjeetsarkar/rust_autopaper written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tanjeetsarkar/rust_autopaper 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" "+5257aee7dd163d21d32fa904578d4fb0f4c91b79" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking tanjeetsarkar/rust_autopaper against try#d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8 for pr-116494-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanjeetsarkar%2Frust_autopaper" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tanjeetsarkar/rust_autopaper on toolchain d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tanjeetsarkar/rust_autopaper
[INFO] finished tweaking git repo https://github.com/tanjeetsarkar/rust_autopaper
[INFO] tweaked toml for git repo https://github.com/tanjeetsarkar/rust_autopaper written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tanjeetsarkar/rust_autopaper 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" "+d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded openssl-sys v0.9.82
[INFO] [stderr]   Downloaded openssl v0.10.47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4deee288b7fea241a9c9ccf59ae4d18e29e008cbe3b8d10069d95b4d0655bb30
[INFO] running `Command { std: "docker" "start" "-a" "4deee288b7fea241a9c9ccf59ae4d18e29e008cbe3b8d10069d95b4d0655bb30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4deee288b7fea241a9c9ccf59ae4d18e29e008cbe3b8d10069d95b4d0655bb30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4deee288b7fea241a9c9ccf59ae4d18e29e008cbe3b8d10069d95b4d0655bb30", kill_on_drop: false }`
[INFO] [stdout] 4deee288b7fea241a9c9ccf59ae4d18e29e008cbe3b8d10069d95b4d0655bb30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20d2e3321e9789fa915b8e66e2669a09992126941b7b5cd6373e7a0f62982add
[INFO] running `Command { std: "docker" "start" "-a" "20d2e3321e9789fa915b8e66e2669a09992126941b7b5cd6373e7a0f62982add", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.52/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 smallvec v1.10.0
[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" "20d2e3321e9789fa915b8e66e2669a09992126941b7b5cd6373e7a0f62982add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d2e3321e9789fa915b8e66e2669a09992126941b7b5cd6373e7a0f62982add", kill_on_drop: false }`
[INFO] [stdout] 20d2e3321e9789fa915b8e66e2669a09992126941b7b5cd6373e7a0f62982add