[INFO] cloning repository https://github.com/Nyrox/experimental-lang [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nyrox/experimental-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrox%2Fexperimental-lang", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrox%2Fexperimental-lang'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3c613f5124c6340a360ba5a788c2ffd5602e3ff9 [INFO] checking Nyrox/experimental-lang against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrox%2Fexperimental-lang" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Nyrox/experimental-lang on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Nyrox/experimental-lang [INFO] finished tweaking git repo https://github.com/Nyrox/experimental-lang [INFO] tweaked toml for git repo https://github.com/Nyrox/experimental-lang written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/Nyrox/experimental-lang already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 270eaaf1fb0332ccd184bbc5af770d29f68f009694ae1ec16c1b5b221b7a3fbe [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" "270eaaf1fb0332ccd184bbc5af770d29f68f009694ae1ec16c1b5b221b7a3fbe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "270eaaf1fb0332ccd184bbc5af770d29f68f009694ae1ec16c1b5b221b7a3fbe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "270eaaf1fb0332ccd184bbc5af770d29f68f009694ae1ec16c1b5b221b7a3fbe", kill_on_drop: false }` [INFO] [stdout] 270eaaf1fb0332ccd184bbc5af770d29f68f009694ae1ec16c1b5b221b7a3fbe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a5a77432a59ea77bb7ec2eb6f410c29cfd729d7f7fb389562a494dd8f86b62d [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" "2a5a77432a59ea77bb7ec2eb6f410c29cfd729d7f7fb389562a494dd8f86b62d", kill_on_drop: false }` [INFO] [stderr] Checking experimental-lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `let_chains` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(let_chains)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #53667 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `let_chains` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(let_chains)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #53667 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TypeDeclaration` is imported redundantly [INFO] [stdout] --> src/typecheck.rs:518:9 [INFO] [stdout] | [INFO] [stdout] 2 | ast::untyped::{Expr, TypeDeclaration}, [INFO] [stdout] | --------------- the item `TypeDeclaration` is already imported here [INFO] [stdout] ... [INFO] [stdout] 518 | use untyped::TypeDeclaration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TypeDeclaration` is imported redundantly [INFO] [stdout] --> src/typecheck.rs:518:9 [INFO] [stdout] | [INFO] [stdout] 2 | ast::untyped::{Expr, TypeDeclaration}, [INFO] [stdout] | --------------- the item `TypeDeclaration` is already imported here [INFO] [stdout] ... [INFO] [stdout] 518 | use untyped::TypeDeclaration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map, [closure@src/ast/untyped.rs:138:22: 138:34]>` in the current scope [INFO] [stdout] --> src/ast/untyped.rs:139:18 [INFO] [stdout] | [INFO] [stdout] 139 | .fold_first(|s1, s2| s1.encompass(s2)) [INFO] [stdout] | ^^^^^^^^^^ method not found in `Map, [closure@src/ast/untyped.rs:138:22: 138:34]>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map, [closure@src/ast/untyped.rs:138:22: 138:34]>` in the current scope [INFO] [stdout] --> src/ast/untyped.rs:139:18 [INFO] [stdout] | [INFO] [stdout] 139 | .fold_first(|s1, s2| s1.encompass(s2)) [INFO] [stdout] | ^^^^^^^^^^ method not found in `Map, [closure@src/ast/untyped.rs:138:22: 138:34]>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: could not compile `experimental-lang` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "2a5a77432a59ea77bb7ec2eb6f410c29cfd729d7f7fb389562a494dd8f86b62d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a5a77432a59ea77bb7ec2eb6f410c29cfd729d7f7fb389562a494dd8f86b62d", kill_on_drop: false }` [INFO] [stdout] 2a5a77432a59ea77bb7ec2eb6f410c29cfd729d7f7fb389562a494dd8f86b62d