[INFO] fetching crate gypsy 0.0.0...
[INFO] checking gypsy-0.0.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate gypsy 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gypsy 0.0.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gypsy 0.0.0
[INFO] finished tweaking crates.io crate gypsy 0.0.0
[INFO] tweaked toml for crates.io crate gypsy 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5a37a70eb40b0a76eec632604e0c5bcfeadc95783a4e8e9e1ee45a8034f8c4c1
[INFO] running `Command { std: "docker" "start" "-a" "5a37a70eb40b0a76eec632604e0c5bcfeadc95783a4e8e9e1ee45a8034f8c4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a37a70eb40b0a76eec632604e0c5bcfeadc95783a4e8e9e1ee45a8034f8c4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a37a70eb40b0a76eec632604e0c5bcfeadc95783a4e8e9e1ee45a8034f8c4c1", kill_on_drop: false }`
[INFO] [stdout] 5a37a70eb40b0a76eec632604e0c5bcfeadc95783a4e8e9e1ee45a8034f8c4c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd6623a9e69b53f441794ba99586afc9f7b9ddd4377059083057260b4546c7d2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fd6623a9e69b53f441794ba99586afc9f7b9ddd4377059083057260b4546c7d2", kill_on_drop: false }`
[INFO] [stderr]     Checking gypsy v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `greeter`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `examples/greeter.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 `gypsy`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "fd6623a9e69b53f441794ba99586afc9f7b9ddd4377059083057260b4546c7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd6623a9e69b53f441794ba99586afc9f7b9ddd4377059083057260b4546c7d2", kill_on_drop: false }`
[INFO] [stdout] fd6623a9e69b53f441794ba99586afc9f7b9ddd4377059083057260b4546c7d2