[INFO] cloning repository https://github.com/teor2345/spandoc-panic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/teor2345/spandoc-panic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteor2345%2Fspandoc-panic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteor2345%2Fspandoc-panic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4a719c169b7842279d080d7b78b3515aa7c1131
[INFO] checking teor2345/spandoc-panic against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteor2345%2Fspandoc-panic" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/teor2345/spandoc-panic on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/teor2345/spandoc-panic
[INFO] finished tweaking git repo https://github.com/teor2345/spandoc-panic
[INFO] tweaked toml for git repo https://github.com/teor2345/spandoc-panic written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/teor2345/spandoc-panic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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] be4931cf56fa33d1b702334b6adac66b3051261522b498b2b15a488b8956a2ef
[INFO] running `Command { std: "docker" "start" "-a" "be4931cf56fa33d1b702334b6adac66b3051261522b498b2b15a488b8956a2ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be4931cf56fa33d1b702334b6adac66b3051261522b498b2b15a488b8956a2ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be4931cf56fa33d1b702334b6adac66b3051261522b498b2b15a488b8956a2ef", kill_on_drop: false }`
[INFO] [stdout] be4931cf56fa33d1b702334b6adac66b3051261522b498b2b15a488b8956a2ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e06904570a1d331c3edeeb5362da1721e4b04f621267707d511e2e058824324f
[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" "e06904570a1d331c3edeeb5362da1721e4b04f621267707d511e2e058824324f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling spandoc-attribute v0.1.0
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking spandoc v0.2.0
[INFO] [stderr]     Checking spandoc-panic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[spandoc::spandoc]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/main.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[spandoc::spandoc]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[spandoc::spandoc]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/main.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[spandoc::spandoc]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/main.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | #[spandoc::spandoc]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spandoc-panic`
[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] [stdout] error: custom attribute panicked
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[spandoc::spandoc]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/main.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[spandoc::spandoc]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[spandoc::spandoc]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/main.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[spandoc::spandoc]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/main.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | #[spandoc::spandoc]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: attempt to subtract with overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `spandoc_panic`
[INFO] [stdout]   --> src/main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / #[spandoc::spandoc]
[INFO] [stdout] 2  | | fn _dont_panic_return_type_value() -> i32 {
[INFO] [stdout] 3  | |     42
[INFO] [stdout] 4  | | }
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | | fn main() {
[INFO] [stdout] 43 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e06904570a1d331c3edeeb5362da1721e4b04f621267707d511e2e058824324f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e06904570a1d331c3edeeb5362da1721e4b04f621267707d511e2e058824324f", kill_on_drop: false }`
[INFO] [stdout] e06904570a1d331c3edeeb5362da1721e4b04f621267707d511e2e058824324f