[INFO] cloning repository https://github.com/fabian-braun/slack-sig-verify
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fabian-braun/slack-sig-verify" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabian-braun%2Fslack-sig-verify", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabian-braun%2Fslack-sig-verify'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 132a70f46b871832e7f3963b6ce09be303214e10
[INFO] checking fabian-braun/slack-sig-verify against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabian-braun%2Fslack-sig-verify" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fabian-braun/slack-sig-verify
[INFO] finished tweaking git repo https://github.com/fabian-braun/slack-sig-verify
[INFO] tweaked toml for git repo https://github.com/fabian-braun/slack-sig-verify written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fabian-braun/slack-sig-verify on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fabian-braun/slack-sig-verify 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 318ac7054aacbd77712b48888f9f1a65f17b5fb5af77f72bd9a28a2e9526eef1
[INFO] running `Command { std: "docker" "start" "-a" "318ac7054aacbd77712b48888f9f1a65f17b5fb5af77f72bd9a28a2e9526eef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "318ac7054aacbd77712b48888f9f1a65f17b5fb5af77f72bd9a28a2e9526eef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "318ac7054aacbd77712b48888f9f1a65f17b5fb5af77f72bd9a28a2e9526eef1", kill_on_drop: false }`
[INFO] [stdout] 318ac7054aacbd77712b48888f9f1a65f17b5fb5af77f72bd9a28a2e9526eef1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a41bff90869c8df263a41393b7e5cdc64f26dc7aeacf879fb1c672e4f34c6292
[INFO] running `Command { std: "docker" "start" "-a" "a41bff90869c8df263a41393b7e5cdc64f26dc7aeacf879fb1c672e4f34c6292", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking slack-sig-verify v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `actual` in this scope
[INFO] [stdout]   --> src/main.rs:34:30
[INFO] [stdout]    |
[INFO] [stdout] 34 |         assert_eq!(expected, actual);
[INFO] [stdout]    |                              ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/main.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn test_verify_signature_raw_works_for_slack_example() {
[INFO] [stdout]    |     ------------------------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 31 |         hmac::verify(&signing_key, &input, &expected_sig)?;
[INFO] [stdout]    |                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 10 ~     fn test_verify_signature_raw_works_for_slack_example() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 11 |         // See example here: https://api.slack.com/authentication/verifying-requests-from-slack
[INFO] [stdout] ...
[INFO] [stdout] 34 |         assert_eq!(expected, actual);
[INFO] [stdout] 35 ~         Ok(())
[INFO] [stdout] 36 ~     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `slack-sig-verify` (bin "slack-sig-verify" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a41bff90869c8df263a41393b7e5cdc64f26dc7aeacf879fb1c672e4f34c6292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a41bff90869c8df263a41393b7e5cdc64f26dc7aeacf879fb1c672e4f34c6292", kill_on_drop: false }`
[INFO] [stdout] a41bff90869c8df263a41393b7e5cdc64f26dc7aeacf879fb1c672e4f34c6292