[INFO] cloning repository https://github.com/xiaokyo/alfred-markdown-searcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiaokyo/alfred-markdown-searcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaokyo%2Falfred-markdown-searcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaokyo%2Falfred-markdown-searcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9836e3ff20ea945733224859a6b30dfc1fe99ae2
[INFO] testing xiaokyo/alfred-markdown-searcher against try#5a3d3b91048a0adf280e7a4e589c1dda6443f172 for pr-115235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaokyo%2Falfred-markdown-searcher" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiaokyo/alfred-markdown-searcher on toolchain 5a3d3b91048a0adf280e7a4e589c1dda6443f172
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiaokyo/alfred-markdown-searcher
[INFO] finished tweaking git repo https://github.com/xiaokyo/alfred-markdown-searcher
[INFO] tweaked toml for git repo https://github.com/xiaokyo/alfred-markdown-searcher written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/xiaokyo/alfred-markdown-searcher 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" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac3fc094d11a15a6c8daaab6e66bd68b378569cae60bbc794da706852186ea8f
[INFO] running `Command { std: "docker" "start" "-a" "ac3fc094d11a15a6c8daaab6e66bd68b378569cae60bbc794da706852186ea8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac3fc094d11a15a6c8daaab6e66bd68b378569cae60bbc794da706852186ea8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac3fc094d11a15a6c8daaab6e66bd68b378569cae60bbc794da706852186ea8f", kill_on_drop: false }`
[INFO] [stdout] ac3fc094d11a15a6c8daaab6e66bd68b378569cae60bbc794da706852186ea8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a157db8d915a049e1d7384d833e93ccc3faeaf478dd7c96c92a09c68778c5ca
[INFO] running `Command { std: "docker" "start" "-a" "8a157db8d915a049e1d7384d833e93ccc3faeaf478dd7c96c92a09c68778c5ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr] thread 'rustc' panicked at compiler/rustc_metadata/src/rmeta/encoder.rs:450:9:
[INFO] [stderr] error: could not compile `serde_json` (lib)
[INFO] running `Command { std: "docker" "inspect" "8a157db8d915a049e1d7384d833e93ccc3faeaf478dd7c96c92a09c68778c5ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a157db8d915a049e1d7384d833e93ccc3faeaf478dd7c96c92a09c68778c5ca", kill_on_drop: false }`
[INFO] [stdout] 8a157db8d915a049e1d7384d833e93ccc3faeaf478dd7c96c92a09c68778c5ca