[INFO] cloning repository https://github.com/KanishkKhurana/Rust-Backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KanishkKhurana/Rust-Backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKanishkKhurana%2FRust-Backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKanishkKhurana%2FRust-Backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae7cf9d0ef88ea7b12f3f85390bbbb0544752b64
[INFO] checking KanishkKhurana/Rust-Backend against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKanishkKhurana%2FRust-Backend" "/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/KanishkKhurana/Rust-Backend on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KanishkKhurana/Rust-Backend
[INFO] finished tweaking git repo https://github.com/KanishkKhurana/Rust-Backend
[INFO] tweaked toml for git repo https://github.com/KanishkKhurana/Rust-Backend written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KanishkKhurana/Rust-Backend 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" "+8f359beca4e58bc3ae795a666301a8f47023044c" "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 KanishkKhurana/Rust-Backend against try#7ee76453dd3eae6de6c1351f26482bed63b01beb for pr-121545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKanishkKhurana%2FRust-Backend" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KanishkKhurana/Rust-Backend on toolchain 7ee76453dd3eae6de6c1351f26482bed63b01beb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7ee76453dd3eae6de6c1351f26482bed63b01beb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KanishkKhurana/Rust-Backend
[INFO] finished tweaking git repo https://github.com/KanishkKhurana/Rust-Backend
[INFO] tweaked toml for git repo https://github.com/KanishkKhurana/Rust-Backend written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KanishkKhurana/Rust-Backend 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" "+7ee76453dd3eae6de6c1351f26482bed63b01beb" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+7ee76453dd3eae6de6c1351f26482bed63b01beb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e31e435819a1c1358b13bb0b0066c4d31a9db42e0022003d4a3797fb3b4e02b3
[INFO] running `Command { std: "docker" "start" "-a" "e31e435819a1c1358b13bb0b0066c4d31a9db42e0022003d4a3797fb3b4e02b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e31e435819a1c1358b13bb0b0066c4d31a9db42e0022003d4a3797fb3b4e02b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31e435819a1c1358b13bb0b0066c4d31a9db42e0022003d4a3797fb3b4e02b3", kill_on_drop: false }`
[INFO] [stdout] e31e435819a1c1358b13bb0b0066c4d31a9db42e0022003d4a3797fb3b4e02b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+7ee76453dd3eae6de6c1351f26482bed63b01beb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39c2291d423fe902163ade17a2989bdea06417ddaa3a46a19feaed95e9a66c4a
[INFO] running `Command { std: "docker" "start" "-a" "39c2291d423fe902163ade17a2989bdea06417ddaa3a46a19feaed95e9a66c4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.145
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling zstd-safe v6.0.5+zstd.1.5.4
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]     Checking local-waker v0.1.3
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.59/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 time-core v0.1.1
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[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" "39c2291d423fe902163ade17a2989bdea06417ddaa3a46a19feaed95e9a66c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39c2291d423fe902163ade17a2989bdea06417ddaa3a46a19feaed95e9a66c4a", kill_on_drop: false }`
[INFO] [stdout] 39c2291d423fe902163ade17a2989bdea06417ddaa3a46a19feaed95e9a66c4a