[INFO] fetching crate cmb 0.0.2...
[INFO] checking cmb-0.0.2 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate cmb 0.0.2 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate cmb 0.0.2 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cmb 0.0.2
[INFO] finished tweaking crates.io crate cmb 0.0.2
[INFO] tweaked toml for crates.io crate cmb 0.0.2 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate crates.io crate cmb 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bac0058ac18f25b714b3ba68ce1b86e6d6010db54694a6236d6092c88d2be7ff
[INFO] running `Command { std: "docker" "start" "-a" "bac0058ac18f25b714b3ba68ce1b86e6d6010db54694a6236d6092c88d2be7ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bac0058ac18f25b714b3ba68ce1b86e6d6010db54694a6236d6092c88d2be7ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bac0058ac18f25b714b3ba68ce1b86e6d6010db54694a6236d6092c88d2be7ff", kill_on_drop: false }`
[INFO] [stdout] bac0058ac18f25b714b3ba68ce1b86e6d6010db54694a6236d6092c88d2be7ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d3959e1cec1106d14844935d428cf0e792d8124946fb6b02756a74eb09010a4
[INFO] running `Command { std: "docker" "start" "-a" "2d3959e1cec1106d14844935d428cf0e792d8124946fb6b02756a74eb09010a4", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cmb v0.0.2 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/app.rs from 2018 edition to 2021
[INFO] [stdout] error[E0601]: `main` function not found in crate `app`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `examples/app.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 `cmb` due to 2 previous errors
[INFO] [stderr] error: failed to migrate to next edition
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "2d3959e1cec1106d14844935d428cf0e792d8124946fb6b02756a74eb09010a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d3959e1cec1106d14844935d428cf0e792d8124946fb6b02756a74eb09010a4", kill_on_drop: false }`
[INFO] [stdout] 2d3959e1cec1106d14844935d428cf0e792d8124946fb6b02756a74eb09010a4