[INFO] cloning repository https://github.com/Sintrastes/pure-prolog-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sintrastes/pure-prolog-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSintrastes%2Fpure-prolog-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSintrastes%2Fpure-prolog-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c528eda274848e3ed19b955b0dbc2242e7ca405b [INFO] checking Sintrastes/pure-prolog-rs against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSintrastes%2Fpure-prolog-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Sintrastes/pure-prolog-rs on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Sintrastes/pure-prolog-rs [INFO] finished tweaking git repo https://github.com/Sintrastes/pure-prolog-rs [INFO] tweaked toml for git repo https://github.com/Sintrastes/pure-prolog-rs written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/Sintrastes/pure-prolog-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded mdo v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6cff47934c1effeb5ca7c3f8bdc9988ed55b96d12e8d0140e4be11b9aecb48e2 [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" "6cff47934c1effeb5ca7c3f8bdc9988ed55b96d12e8d0140e4be11b9aecb48e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6cff47934c1effeb5ca7c3f8bdc9988ed55b96d12e8d0140e4be11b9aecb48e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6cff47934c1effeb5ca7c3f8bdc9988ed55b96d12e8d0140e4be11b9aecb48e2", kill_on_drop: false }` [INFO] [stdout] 6cff47934c1effeb5ca7c3f8bdc9988ed55b96d12e8d0140e4be11b9aecb48e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 23c7dc1c82440525180f74d5a0f537d3724b9621b00c738a103ec631b3109b7f [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" "23c7dc1c82440525180f74d5a0f537d3724b9621b00c738a103ec631b3109b7f", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Checking mdo v0.3.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling derive_more v0.99.11 [INFO] [stderr] Checking bedelibry-prolog-runtime-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/main.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | #![feature(unsized_locals)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #48055 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/main.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | #![feature(unsized_locals)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #48055 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: `Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>` is not an iterator [INFO] [stdout] --> src/interp.rs:34:21 [INFO] [stdout] | [INFO] [stdout] 34 | let trees = mdo! { [INFO] [stdout] | _____________________^ [INFO] [stdout] 35 | | clause =<< program.clauses.iter(); [INFO] [stdout] 36 | | let Clause {head: clauseHead, body: clauseBody} = freshen(varsInGoal.clone(), clause); [INFO] [stdout] 37 | | ret match Term::unify(&clauseHead, &t) { [INFO] [stdout] ... | [INFO] [stdout] 52 | | } [INFO] [stdout] 53 | | }; [INFO] [stdout] | |_________^ `Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>` is not an iterator [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mdo-0.3.0/src/lib.rs:133:27 [INFO] [stdout] | [INFO] [stdout] 133 | where I: Iterator, U: Iterator, F: FnMut(::Item) -> U { [INFO] [stdout] | -------- required by this bound in `mdo::iter::bind` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::iter::Iterator` is not implemented for `Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>` [INFO] [stdout] = note: required because of the requirements on the impl of `std::iter::Iterator` for `&mut Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>` [INFO] [stdout] = note: this error originates in the macro `mdo` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: type mismatch resolving `>, &mut Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mdo-0.3.0/src/lib.rs:64:18: 64:45]> as std::iter::Iterator>::Item == tree::Tree, _>` [INFO] [stdout] --> src/interp.rs:57:31 [INFO] [stdout] | [INFO] [stdout] 57 | goal.clone(), lazy_trees [INFO] [stdout] | ^^^^^^^^^^ expected enum `tree::Tree`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `tree::Tree, _>` [INFO] [stdout] found mutable reference `&mut &tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>` [INFO] [stdout] = note: required for the cast to the object type `dyn std::iter::Iterator, _>>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0271, E0277. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0271`. [INFO] [stdout] [INFO] [stdout] error[E0277]: `Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>` is not an iterator [INFO] [stdout] --> src/interp.rs:34:21 [INFO] [stdout] | [INFO] [stdout] 34 | let trees = mdo! { [INFO] [stdout] | _____________________^ [INFO] [stdout] 35 | | clause =<< program.clauses.iter(); [INFO] [stdout] 36 | | let Clause {head: clauseHead, body: clauseBody} = freshen(varsInGoal.clone(), clause); [INFO] [stdout] 37 | | ret match Term::unify(&clauseHead, &t) { [INFO] [stdout] ... | [INFO] [stdout] 52 | | } [INFO] [stdout] 53 | | }; [INFO] [stdout] | |_________^ `Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>` is not an iterator [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mdo-0.3.0/src/lib.rs:133:27 [INFO] [stdout] | [INFO] [stdout] 133 | where I: Iterator, U: Iterator, F: FnMut(::Item) -> U { [INFO] [stdout] | -------- required by this bound in `mdo::iter::bind` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::iter::Iterator` is not implemented for `Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>` [INFO] [stdout] = note: required because of the requirements on the impl of `std::iter::Iterator` for `&mut Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>` [INFO] [stdout] = note: this error originates in the macro `mdo` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: type mismatch resolving `>, &mut Vec<&tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mdo-0.3.0/src/lib.rs:64:18: 64:45]> as std::iter::Iterator>::Item == tree::Tree, _>` [INFO] [stdout] --> src/interp.rs:57:31 [INFO] [stdout] | [INFO] [stdout] 57 | goal.clone(), lazy_trees [INFO] [stdout] | ^^^^^^^^^^ expected enum `tree::Tree`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `tree::Tree, _>` [INFO] [stdout] found mutable reference `&mut &tree::Tree, unifiable::Unifier<'_, V, term::Term<'_, T, V>>>` [INFO] [stdout] = note: required for the cast to the object type `dyn std::iter::Iterator, _>>` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `bedelibry-prolog-runtime-rs` due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0271, E0277. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0271`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "23c7dc1c82440525180f74d5a0f537d3724b9621b00c738a103ec631b3109b7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23c7dc1c82440525180f74d5a0f537d3724b9621b00c738a103ec631b3109b7f", kill_on_drop: false }` [INFO] [stdout] 23c7dc1c82440525180f74d5a0f537d3724b9621b00c738a103ec631b3109b7f