[INFO] cloning repository https://github.com/MechWipf/browser-launcher-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MechWipf/browser-launcher-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMechWipf%2Fbrowser-launcher-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMechWipf%2Fbrowser-launcher-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e78a7d2ad4f766a0c0c459c0b0397fed95adf65d
[INFO] checking MechWipf/browser-launcher-rs/e78a7d2ad4f766a0c0c459c0b0397fed95adf65d against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMechWipf%2Fbrowser-launcher-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MechWipf/browser-launcher-rs on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MechWipf/browser-launcher-rs
[INFO] finished tweaking git repo https://github.com/MechWipf/browser-launcher-rs
[INFO] tweaked toml for git repo https://github.com/MechWipf/browser-launcher-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MechWipf/browser-launcher-rs 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winres v0.1.11
[INFO] [stderr]   Downloaded dtoa v0.4.6
[INFO] [stderr]   Downloaded flate2 v1.0.17
[INFO] [stderr]   Downloaded serde-value v0.6.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.13
[INFO] [stderr]   Downloaded log-mdc v0.1.0
[INFO] [stderr]   Downloaded anyhow v1.0.32
[INFO] [stderr]   Downloaded miniz_oxide v0.4.2
[INFO] [stderr]   Downloaded arc-swap v0.4.7
[INFO] [stderr]   Downloaded yaml-rust v0.4.4
[INFO] [stderr]   Downloaded log4rs v0.13.0
[INFO] [stderr]   Downloaded chrono v0.4.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28f05a3cbdacb78f7fdc1c6dea350be1d942a00ad2271bc9f8b0d979fa60642a
[INFO] running `Command { std: "docker" "start" "-a" "28f05a3cbdacb78f7fdc1c6dea350be1d942a00ad2271bc9f8b0d979fa60642a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28f05a3cbdacb78f7fdc1c6dea350be1d942a00ad2271bc9f8b0d979fa60642a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28f05a3cbdacb78f7fdc1c6dea350be1d942a00ad2271bc9f8b0d979fa60642a", kill_on_drop: false }`
[INFO] [stdout] 28f05a3cbdacb78f7fdc1c6dea350be1d942a00ad2271bc9f8b0d979fa60642a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f43b8f1359224deba2a9c78a1ea8dc1dc83447520753b5a0aa76ddff8de8335
[INFO] running `Command { std: "docker" "start" "-a" "1f43b8f1359224deba2a9c78a1ea8dc1dc83447520753b5a0aa76ddff8de8335", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling browser_launcher v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stdout] error[E0601]: `main` function not found in crate `build_script_build`
[INFO] [stdout]  --> build.rs:8:2
[INFO] [stdout]   |
[INFO] [stdout] 8 | }
[INFO] [stdout]   |  ^ consider adding a `main` function to `build.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `browser_launcher` (build script) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1f43b8f1359224deba2a9c78a1ea8dc1dc83447520753b5a0aa76ddff8de8335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f43b8f1359224deba2a9c78a1ea8dc1dc83447520753b5a0aa76ddff8de8335", kill_on_drop: false }`
[INFO] [stdout] 1f43b8f1359224deba2a9c78a1ea8dc1dc83447520753b5a0aa76ddff8de8335