[INFO] fetching crate cargo-ghdoc 0.5.1-alpha.1...
[INFO] checking cargo-ghdoc-0.5.1-alpha.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cargo-ghdoc 0.5.1-alpha.1 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate cargo-ghdoc 0.5.1-alpha.1
[INFO] finished tweaking crates.io crate cargo-ghdoc 0.5.1-alpha.1
[INFO] tweaked toml for crates.io crate cargo-ghdoc 0.5.1-alpha.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-ghdoc 0.5.1-alpha.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cargo-ghdoc 0.5.1-alpha.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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fcc081c4ee80cb15f192b25c8ff06cd38e6d7f21d4439e64ad0c8fc59b0f87b
[INFO] running `Command { std: "docker" "start" "-a" "8fcc081c4ee80cb15f192b25c8ff06cd38e6d7f21d4439e64ad0c8fc59b0f87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fcc081c4ee80cb15f192b25c8ff06cd38e6d7f21d4439e64ad0c8fc59b0f87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fcc081c4ee80cb15f192b25c8ff06cd38e6d7f21d4439e64ad0c8fc59b0f87b", kill_on_drop: false }`
[INFO] [stdout] 8fcc081c4ee80cb15f192b25c8ff06cd38e6d7f21d4439e64ad0c8fc59b0f87b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27168fc577c5c97e06e530201b89f2f815103654b9da4a33403912a0bf68935c
[INFO] running `Command { std: "docker" "start" "-a" "27168fc577c5c97e06e530201b89f2f815103654b9da4a33403912a0bf68935c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling clap_derive v3.1.0
[INFO] [stderr]     Checking clap v3.1.0
[INFO] [stderr]     Checking cargo-ghdoc v0.5.1-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     /// The URL to the Pull request or repo.
[INFO] [stdout] 24 | |     ///
[INFO] [stdout] 25 | |     /// This can either by a pull request url, i.e. https://github.com/fulcrumgenomics/cargo-ghdoc/pull/1
[INFO] [stdout] 26 | |     /// Or a plain path to a repo, i.e. https://github.com/fulcrumgenomics/cargo-ghdoc
[INFO] [stdout] 27 | |     url: String,
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// If you use an ssh alias in order to use specific keys, you can specify the alias used for `github.com` here.
[INFO] [stdout] 34 | |     ///
[INFO] [stdout] 35 | |     /// See https://wiki.debian.org/SshAliases
[INFO] [stdout] 36 | |     #[clap(long, short)]
[INFO] [stdout] 37 | |     github_host_alias: Option<String>,
[INFO] [stdout]    | |_____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-ghdoc` (bin "cargo-ghdoc" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     /// The URL to the Pull request or repo.
[INFO] [stdout] 24 | |     ///
[INFO] [stdout] 25 | |     /// This can either by a pull request url, i.e. https://github.com/fulcrumgenomics/cargo-ghdoc/pull/1
[INFO] [stdout] 26 | |     /// Or a plain path to a repo, i.e. https://github.com/fulcrumgenomics/cargo-ghdoc
[INFO] [stdout] 27 | |     url: String,
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// If you use an ssh alias in order to use specific keys, you can specify the alias used for `github.com` here.
[INFO] [stdout] 34 | |     ///
[INFO] [stdout] 35 | |     /// See https://wiki.debian.org/SshAliases
[INFO] [stdout] 36 | |     #[clap(long, short)]
[INFO] [stdout] 37 | |     github_host_alias: Option<String>,
[INFO] [stdout]    | |_____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-ghdoc` (bin "cargo-ghdoc") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "27168fc577c5c97e06e530201b89f2f815103654b9da4a33403912a0bf68935c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27168fc577c5c97e06e530201b89f2f815103654b9da4a33403912a0bf68935c", kill_on_drop: false }`
[INFO] [stdout] 27168fc577c5c97e06e530201b89f2f815103654b9da4a33403912a0bf68935c