[INFO] cloning repository https://github.com/gopakumarce/l3l4kit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gopakumarce/l3l4kit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgopakumarce%2Fl3l4kit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgopakumarce%2Fl3l4kit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf70064b1e09855cfd5c159884bf42a3d79b4e7b
[INFO] checking gopakumarce/l3l4kit/bf70064b1e09855cfd5c159884bf42a3d79b4e7b against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgopakumarce%2Fl3l4kit" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gopakumarce/l3l4kit on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/gopakumarce/l3l4kit
[INFO] finished tweaking git repo https://github.com/gopakumarce/l3l4kit
[INFO] tweaked toml for git repo https://github.com/gopakumarce/l3l4kit written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gopakumarce/l3l4kit 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tun v0.5.4
[INFO] [stderr]   Downloaded ioctl-sys v0.6.0
[INFO] [stderr]   Downloaded defmt-parser v0.3.1
[INFO] [stderr]   Downloaded critical-section v0.2.7
[INFO] [stderr]   Downloaded riscv v0.7.0
[INFO] [stderr]   Downloaded defmt-macros v0.3.3
[INFO] [stderr]   Downloaded env_logger v0.9.1
[INFO] [stderr]   Downloaded priority-queue v1.2.3
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.10
[INFO] [stderr]   Downloaded cortex-m v0.7.6
[INFO] [stderr]   Downloaded smoltcp v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b965f83280edb22bf27dcd8d0acc92acfbc48986ea308013cf18a733490c51f1
[INFO] running `Command { std: "docker" "start" "-a" "b965f83280edb22bf27dcd8d0acc92acfbc48986ea308013cf18a733490c51f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b965f83280edb22bf27dcd8d0acc92acfbc48986ea308013cf18a733490c51f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b965f83280edb22bf27dcd8d0acc92acfbc48986ea308013cf18a733490c51f1", kill_on_drop: false }`
[INFO] [stdout] b965f83280edb22bf27dcd8d0acc92acfbc48986ea308013cf18a733490c51f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bf848d991cc026909a165a82f90880a332d1bc091e2340e7386c17d30c63e64
[INFO] running `Command { std: "docker" "start" "-a" "1bf848d991cc026909a165a82f90880a332d1bc091e2340e7386c17d30c63e64", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[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 smallvec v1.10.0
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling futures-util v0.3.24
[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" "1bf848d991cc026909a165a82f90880a332d1bc091e2340e7386c17d30c63e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bf848d991cc026909a165a82f90880a332d1bc091e2340e7386c17d30c63e64", kill_on_drop: false }`
[INFO] [stdout] 1bf848d991cc026909a165a82f90880a332d1bc091e2340e7386c17d30c63e64