[INFO] fetching crate sake 0.0.1...
[INFO] checking sake-0.0.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate sake 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate sake 0.0.1
[INFO] finished tweaking crates.io crate sake 0.0.1
[INFO] tweaked toml for crates.io crate sake 0.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sake 0.0.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sake 0.0.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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 integer-encoding v1.1.7
[INFO] [stderr]   Downloaded thrift v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acca19a50602664d8c9e6f473d6e01a416143e71c59bd5800c9e758b6974cd08
[INFO] running `Command { std: "docker" "start" "-a" "acca19a50602664d8c9e6f473d6e01a416143e71c59bd5800c9e758b6974cd08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acca19a50602664d8c9e6f473d6e01a416143e71c59bd5800c9e758b6974cd08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acca19a50602664d8c9e6f473d6e01a416143e71c59bd5800c9e758b6974cd08", kill_on_drop: false }`
[INFO] [stdout] acca19a50602664d8c9e6f473d6e01a416143e71c59bd5800c9e758b6974cd08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1227d7da1d83e67659941e1055e42fa3070a689b9a799d21117fd3cadbaff33
[INFO] running `Command { std: "docker" "start" "-a" "f1227d7da1d83e67659941e1055e42fa3070a689b9a799d21117fd3cadbaff33", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking integer-encoding v1.1.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking thrift v0.13.0
[INFO] [stderr]     Checking sake v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `example`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `examples/example.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sake` (example "example") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f1227d7da1d83e67659941e1055e42fa3070a689b9a799d21117fd3cadbaff33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1227d7da1d83e67659941e1055e42fa3070a689b9a799d21117fd3cadbaff33", kill_on_drop: false }`
[INFO] [stdout] f1227d7da1d83e67659941e1055e42fa3070a689b9a799d21117fd3cadbaff33