[INFO] cloning repository https://github.com/davidgks/snake_game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidgks/snake_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidgks%2Fsnake_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidgks%2Fsnake_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06f580da85c02695d22ccbe06431a1c662d6a1a6
[INFO] checking davidgks/snake_game against try#3f7e3b175fda7edbf81081bcd9b91b73f2f7993f for pr-156157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidgks%2Fsnake_game" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/davidgks/snake_game
[INFO] finished tweaking git repo https://github.com/davidgks/snake_game
[INFO] tweaked toml for git repo https://github.com/davidgks/snake_game written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/davidgks/snake_game on toolchain 3f7e3b175fda7edbf81081bcd9b91b73f2f7993f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f7e3b175fda7edbf81081bcd9b91b73f2f7993f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/davidgks/snake_game 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" "+3f7e3b175fda7edbf81081bcd9b91b73f2f7993f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wee_alloc v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3f7e3b175fda7edbf81081bcd9b91b73f2f7993f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81a5495a4b4a5fe44f82f6f090ed08ad7f48e3e965d80e49266379ff99507d70
[INFO] running `Command { std: "docker" "start" "-a" "81a5495a4b4a5fe44f82f6f090ed08ad7f48e3e965d80e49266379ff99507d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81a5495a4b4a5fe44f82f6f090ed08ad7f48e3e965d80e49266379ff99507d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a5495a4b4a5fe44f82f6f090ed08ad7f48e3e965d80e49266379ff99507d70", kill_on_drop: false }`
[INFO] [stdout] 81a5495a4b4a5fe44f82f6f090ed08ad7f48e3e965d80e49266379ff99507d70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3f7e3b175fda7edbf81081bcd9b91b73f2f7993f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc8717c4607fcf1b9ba1a335fc8385d54ea9b2fdb495b683d7e76f96aa5ddb09
[INFO] running `Command { std: "docker" "start" "-a" "dc8717c4607fcf1b9ba1a335fc8385d54ea9b2fdb495b683d7e76f96aa5ddb09", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.84
[INFO] [stderr]    Compiling bumpalo v3.12.0
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling wasm-bindgen v0.2.84
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[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] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc8717c4607fcf1b9ba1a335fc8385d54ea9b2fdb495b683d7e76f96aa5ddb09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc8717c4607fcf1b9ba1a335fc8385d54ea9b2fdb495b683d7e76f96aa5ddb09", kill_on_drop: false }`
[INFO] [stdout] dc8717c4607fcf1b9ba1a335fc8385d54ea9b2fdb495b683d7e76f96aa5ddb09