[INFO] cloning repository https://github.com/phodal/rust-llvm-practises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phodal/rust-llvm-practises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Frust-llvm-practises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Frust-llvm-practises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85a100bf148108802f3740b124d0e78a3361ac45
[INFO] checking phodal/rust-llvm-practises against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Frust-llvm-practises" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/phodal/rust-llvm-practises on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/phodal/rust-llvm-practises
[INFO] finished tweaking git repo https://github.com/phodal/rust-llvm-practises
[INFO] tweaked toml for git repo https://github.com/phodal/rust-llvm-practises written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/phodal/rust-llvm-practises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded llvm-sys v110.0.0
[INFO] [stderr]   Downloaded inkwell_internals v0.2.0
[INFO] [stderr]   Downloaded llvm-sys v100.2.0
[INFO] [stderr]   Downloaded inkwell v0.1.0-llvm10sample
[INFO] [stderr]   Downloaded once_cell v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4501b4db4fb678769957c81a52ba4f285c28e65238a4c8b0e9819c4ccdde9318
[INFO] running `Command { std: "docker" "start" "-a" "4501b4db4fb678769957c81a52ba4f285c28e65238a4c8b0e9819c4ccdde9318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4501b4db4fb678769957c81a52ba4f285c28e65238a4c8b0e9819c4ccdde9318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4501b4db4fb678769957c81a52ba4f285c28e65238a4c8b0e9819c4ccdde9318", kill_on_drop: false }`
[INFO] [stdout] 4501b4db4fb678769957c81a52ba4f285c28e65238a4c8b0e9819c4ccdde9318
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 091b3b95b7d92581b325b385c84eb24a7db985122db69c9af150267c2454bfce
[INFO] running `Command { std: "docker" "start" "-a" "091b3b95b7d92581b325b385c84eb24a7db985122db69c9af150267c2454bfce", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking once_cell v1.5.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling inkwell v0.1.0-llvm10sample
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=master#4e8c101e)
[INFO] [stderr]     Checking pass v0.1.0 (/opt/rustwide/workdir/pass)
[INFO] [stderr]     Checking llvm-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stdout] error[E0601]: `main` function not found in crate `llvm_rust`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `llvm-rust`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "091b3b95b7d92581b325b385c84eb24a7db985122db69c9af150267c2454bfce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091b3b95b7d92581b325b385c84eb24a7db985122db69c9af150267c2454bfce", kill_on_drop: false }`
[INFO] [stdout] 091b3b95b7d92581b325b385c84eb24a7db985122db69c9af150267c2454bfce