[INFO] cloning repository https://github.com/kunerd/koppeln
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kunerd/koppeln" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunerd%2Fkoppeln", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunerd%2Fkoppeln'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a973e7e41c9abbb3003773e88252698b164e8bd9
[INFO] checking kunerd/koppeln against master#9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9 for pr-124108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunerd%2Fkoppeln" "/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/kunerd/koppeln on toolchain 9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kunerd/koppeln
[INFO] finished tweaking git repo https://github.com/kunerd/koppeln
[INFO] tweaked toml for git repo https://github.com/kunerd/koppeln written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kunerd/koppeln 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" "+9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9" "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 kunerd/koppeln against try#2e5b7739e5167b731ad5eb628f04a54f932f1fe2 for pr-124108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunerd%2Fkoppeln" "/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/kunerd/koppeln on toolchain 2e5b7739e5167b731ad5eb628f04a54f932f1fe2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kunerd/koppeln
[INFO] finished tweaking git repo https://github.com/kunerd/koppeln
[INFO] tweaked toml for git repo https://github.com/kunerd/koppeln written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kunerd/koppeln 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" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "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 security-framework-sys v2.6.0
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86f4fe049a5ee5ef3b42d5482340bc9aedd04fcad5549194b06416e958a7b16f
[INFO] running `Command { std: "docker" "start" "-a" "86f4fe049a5ee5ef3b42d5482340bc9aedd04fcad5549194b06416e958a7b16f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86f4fe049a5ee5ef3b42d5482340bc9aedd04fcad5549194b06416e958a7b16f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f4fe049a5ee5ef3b42d5482340bc9aedd04fcad5549194b06416e958a7b16f", kill_on_drop: false }`
[INFO] [stdout] 86f4fe049a5ee5ef3b42d5482340bc9aedd04fcad5549194b06416e958a7b16f
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f0b760a72ff3413b81e641556acc7169bf7352b54579310cb4474dfb7d9d8e4
[INFO] running `Command { std: "docker" "start" "-a" "8f0b760a72ff3413b81e641556acc7169bf7352b54579310cb4474dfb7d9d8e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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 itoa v1.0.1
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling futures-util v0.3.19
[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" "8f0b760a72ff3413b81e641556acc7169bf7352b54579310cb4474dfb7d9d8e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f0b760a72ff3413b81e641556acc7169bf7352b54579310cb4474dfb7d9d8e4", kill_on_drop: false }`
[INFO] [stdout] 8f0b760a72ff3413b81e641556acc7169bf7352b54579310cb4474dfb7d9d8e4