[INFO] cloning repository https://github.com/hydro-project/hydroflow [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hydro-project/hydroflow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhydro-project%2Fhydroflow", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhydro-project%2Fhydroflow'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ae5580a9cc2a841a226523dc41eeceef13145242 [INFO] checking hydro-project/hydroflow against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhydro-project%2Fhydroflow" "/workspace/builds/worker-64/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hydro-project/hydroflow on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hydro-project/hydroflow [INFO] finished tweaking git repo https://github.com/hydro-project/hydroflow [INFO] tweaked toml for git repo https://github.com/hydro-project/hydroflow written to /workspace/builds/worker-64/source/Cargo.toml [INFO] crate git repo https://github.com/hydro-project/hydroflow already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded std_collection_traits v0.1.2 [INFO] [stderr] Downloaded static-rc v0.4.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e0710fdc98833e066ac2ecc670587e1c0753a3b1565795c47f4bf2226a20ef2f [INFO] running `Command { std: "docker" "start" "-a" "e0710fdc98833e066ac2ecc670587e1c0753a3b1565795c47f4bf2226a20ef2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e0710fdc98833e066ac2ecc670587e1c0753a3b1565795c47f4bf2226a20ef2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0710fdc98833e066ac2ecc670587e1c0753a3b1565795c47f4bf2226a20ef2f", kill_on_drop: false }` [INFO] [stdout] e0710fdc98833e066ac2ecc670587e1c0753a3b1565795c47f4bf2226a20ef2f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 745ba5346619e827a6502a4367f5c12a385c926e673c994e53ff6b9ea61cf749 [INFO] running `Command { std: "docker" "start" "-a" "745ba5346619e827a6502a4367f5c12a385c926e673c994e53ff6b9ea61cf749", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling ref-cast v1.0.6 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Checking std_collection_traits v0.1.2 [INFO] [stderr] Checking static-rc v0.4.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling ref-cast-impl v1.0.6 [INFO] [stderr] Checking hydroflow v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/typeset.rs:42:50 [INFO] [stdout] | [INFO] [stdout] 42 | let z: <(u16, ()) as Exclude>::Output = "hello"; //(0_u16, ()); //(0_u16, ()); [INFO] [stdout] | ----------------------------------- ^^^^^^^ expected associated type, found `&str` [INFO] [stdout] | | [INFO] [stdout] | expected due to this [INFO] [stdout] | [INFO] [stdout] = note: expected associated type `<(u16, ()) as Exclude>::Output` [INFO] [stdout] found reference `&'static str` [INFO] [stdout] = help: consider constraining the associated type `<(u16, ()) as Exclude>::Output` to `&'static str` or calling a method that returns `<(u16, ()) as Exclude>::Output` [INFO] [stdout] = note: for more information, visit https://doc.rust-lang.org/book/ch19-03-advanced-traits.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/typeset.rs:43:20 [INFO] [stdout] | [INFO] [stdout] 43 | let xyz: XYZ = (0_u8, (0_u16, (0_u32, ()))); [INFO] [stdout] | --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected associated type, found tuple [INFO] [stdout] | | [INFO] [stdout] | expected due to this [INFO] [stdout] | [INFO] [stdout] = note: expected associated type `<(u8, (i16, (u16, (u32, ())))) as Exclude>::Output` [INFO] [stdout] found tuple `(u8, (u16, (u32, ())))` [INFO] [stdout] = help: consider constraining the associated type `<(u8, (i16, (u16, (u32, ())))) as Exclude>::Output` to `(u8, (u16, (u32, ())))` or calling a method that returns `<(u8, (i16, (u16, (u32, ())))) as Exclude>::Output` [INFO] [stdout] = note: for more information, visit https://doc.rust-lang.org/book/ch19-03-advanced-traits.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `hydroflow` due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/typeset.rs:42:50 [INFO] [stdout] | [INFO] [stdout] 42 | let z: <(u16, ()) as Exclude>::Output = "hello"; //(0_u16, ()); //(0_u16, ()); [INFO] [stdout] | ----------------------------------- ^^^^^^^ expected associated type, found `&str` [INFO] [stdout] | | [INFO] [stdout] | expected due to this [INFO] [stdout] | [INFO] [stdout] = note: expected associated type `<(u16, ()) as Exclude>::Output` [INFO] [stdout] found reference `&'static str` [INFO] [stdout] = help: consider constraining the associated type `<(u16, ()) as Exclude>::Output` to `&'static str` or calling a method that returns `<(u16, ()) as Exclude>::Output` [INFO] [stdout] = note: for more information, visit https://doc.rust-lang.org/book/ch19-03-advanced-traits.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/typeset.rs:43:20 [INFO] [stdout] | [INFO] [stdout] 43 | let xyz: XYZ = (0_u8, (0_u16, (0_u32, ()))); [INFO] [stdout] | --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected associated type, found tuple [INFO] [stdout] | | [INFO] [stdout] | expected due to this [INFO] [stdout] | [INFO] [stdout] = note: expected associated type `<(u8, (i16, (u16, (u32, ())))) as Exclude>::Output` [INFO] [stdout] found tuple `(u8, (u16, (u32, ())))` [INFO] [stdout] = help: consider constraining the associated type `<(u8, (i16, (u16, (u32, ())))) as Exclude>::Output` to `(u8, (u16, (u32, ())))` or calling a method that returns `<(u8, (i16, (u16, (u32, ())))) as Exclude>::Output` [INFO] [stdout] = note: for more information, visit https://doc.rust-lang.org/book/ch19-03-advanced-traits.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "745ba5346619e827a6502a4367f5c12a385c926e673c994e53ff6b9ea61cf749", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "745ba5346619e827a6502a4367f5c12a385c926e673c994e53ff6b9ea61cf749", kill_on_drop: false }` [INFO] [stdout] 745ba5346619e827a6502a4367f5c12a385c926e673c994e53ff6b9ea61cf749