[INFO] cloning repository https://github.com/paddymac83/space_invaders
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paddymac83/space_invaders" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaddymac83%2Fspace_invaders", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaddymac83%2Fspace_invaders'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64ae4b79c74d1e546b12edb5a08750800ba56274
[INFO] building paddymac83/space_invaders against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaddymac83%2Fspace_invaders" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/paddymac83/space_invaders
[INFO] finished tweaking git repo https://github.com/paddymac83/space_invaders
[INFO] tweaked toml for git repo https://github.com/paddymac83/space_invaders written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/paddymac83/space_invaders on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/paddymac83/space_invaders 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 515e56d7d4e4fb73db504ef034cdd0e34f2da534be5ca4f3dfc07f814fe416d3
[INFO] running `Command { std: "docker" "start" "-a" "515e56d7d4e4fb73db504ef034cdd0e34f2da534be5ca4f3dfc07f814fe416d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "515e56d7d4e4fb73db504ef034cdd0e34f2da534be5ca4f3dfc07f814fe416d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "515e56d7d4e4fb73db504ef034cdd0e34f2da534be5ca4f3dfc07f814fe416d3", kill_on_drop: false }`
[INFO] [stdout] 515e56d7d4e4fb73db504ef034cdd0e34f2da534be5ca4f3dfc07f814fe416d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7c2cd5a30f20043bbfda921dc0c9f623f268023d8d3cbd4cf11e9e9d80a0291
[INFO] running `Command { std: "docker" "start" "-a" "b7c2cd5a30f20043bbfda921dc0c9f623f268023d8d3cbd4cf11e9e9d80a0291", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]    Compiling ogg v0.8.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling claxon v0.4.3
[INFO] [stderr]    Compiling hound v3.5.0
[INFO] [stderr]    Compiling rusty_time v0.11.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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]    Compiling lewton v0.10.2
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[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" "b7c2cd5a30f20043bbfda921dc0c9f623f268023d8d3cbd4cf11e9e9d80a0291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7c2cd5a30f20043bbfda921dc0c9f623f268023d8d3cbd4cf11e9e9d80a0291", kill_on_drop: false }`
[INFO] [stdout] b7c2cd5a30f20043bbfda921dc0c9f623f268023d8d3cbd4cf11e9e9d80a0291