[INFO] cloning repository https://github.com/WilliamVenner/viaduct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WilliamVenner/viaduct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fviaduct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fviaduct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80cdc4526ec9b9cb9981d146a4849a9c01de3f20
[INFO] checking WilliamVenner/viaduct against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fviaduct" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/WilliamVenner/viaduct
[INFO] finished tweaking git repo https://github.com/WilliamVenner/viaduct
[INFO] tweaked toml for git repo https://github.com/WilliamVenner/viaduct written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/WilliamVenner/viaduct 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 git repo https://github.com/WilliamVenner/viaduct 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1c4caba8def3c3b0e5bea54a6afc592198370585b1ab5fe1a59554a005672528
[INFO] running `Command { std: "docker" "start" "-a" "1c4caba8def3c3b0e5bea54a6afc592198370585b1ab5fe1a59554a005672528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c4caba8def3c3b0e5bea54a6afc592198370585b1ab5fe1a59554a005672528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4caba8def3c3b0e5bea54a6afc592198370585b1ab5fe1a59554a005672528", kill_on_drop: false }`
[INFO] [stdout] 1c4caba8def3c3b0e5bea54a6afc592198370585b1ab5fe1a59554a005672528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 41a881bf45b372586e618283e9dbca7f8a65025981d1c9a51c2b7999f71fdc02
[INFO] running `Command { std: "docker" "start" "-a" "41a881bf45b372586e618283e9dbca7f8a65025981d1c9a51c2b7999f71fdc02", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.142
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling serde v1.0.142
[INFO] [stderr]     Checking bytemuck v1.11.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking interprocess v1.1.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking viaduct v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `ci_test`
[INFO] [stdout]    --> src/lib.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 | #![cfg_attr(ci_test, deny(warnings))]
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(ci_test)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(ci_test)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<doctest::Result<T, E>, Infallible>
[INFO] [stdout]   --> src/doctest.rs:39:75
[INFO] [stdout]    |
[INFO] [stdout] 39 |       fn from_pipeable(bytes: &[u8]) -> std::result::Result<Self, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 40 | |         unimplemented!()
[INFO] [stdout] 41 | |     }
[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: std::result::Result<FrontflipError, Infallible>
[INFO] [stdout]   --> src/doctest.rs:58:75
[INFO] [stdout]    |
[INFO] [stdout] 58 |       fn from_pipeable(bytes: &[u8]) -> std::result::Result<Self, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 59 | |         unimplemented!()
[INFO] [stdout] 60 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<BackflipError, Infallible>
[INFO] [stdout]   --> src/doctest.rs:77:75
[INFO] [stdout]    |
[INFO] [stdout] 77 |       fn from_pipeable(bytes: &[u8]) -> std::result::Result<Self, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 78 | |         unimplemented!()
[INFO] [stdout] 79 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<ExampleRpc, Infallible>
[INFO] [stdout]   --> src/doctest.rs:94:75
[INFO] [stdout]    |
[INFO] [stdout] 94 |       fn from_pipeable(bytes: &[u8]) -> std::result::Result<Self, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 95 | |         unimplemented!()
[INFO] [stdout] 96 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<ExampleRequest, Infallible>
[INFO] [stdout]    --> src/doctest.rs:111:75
[INFO] [stdout]     |
[INFO] [stdout] 111 |       fn from_pipeable(bytes: &[u8]) -> std::result::Result<Self, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________________________________^
[INFO] [stdout] 112 | |         unimplemented!()
[INFO] [stdout] 113 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `viaduct` (lib) due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "41a881bf45b372586e618283e9dbca7f8a65025981d1c9a51c2b7999f71fdc02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41a881bf45b372586e618283e9dbca7f8a65025981d1c9a51c2b7999f71fdc02", kill_on_drop: false }`
[INFO] [stdout] 41a881bf45b372586e618283e9dbca7f8a65025981d1c9a51c2b7999f71fdc02
