[INFO] cloning repository https://github.com/toftt/aoc-2020 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/toftt/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoftt%2Faoc-2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoftt%2Faoc-2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 08d8872c05eb7cd0e83f47fa39e7ed15b67f904a [INFO] testing toftt/aoc-2020 against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoftt%2Faoc-2020" "/workspace/builds/worker-105/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/toftt/aoc-2020 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/toftt/aoc-2020 [INFO] finished tweaking git repo https://github.com/toftt/aoc-2020 [INFO] tweaked toml for git repo https://github.com/toftt/aoc-2020 written to /workspace/builds/worker-105/source/Cargo.toml [INFO] crate git repo https://github.com/toftt/aoc-2020 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 16c55b463d95d1ac1c41664c97aeae0f25a07741d7021c1fbf3bd372529eb489 [INFO] running `Command { std: "docker" "start" "-a" "16c55b463d95d1ac1c41664c97aeae0f25a07741d7021c1fbf3bd372529eb489", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "16c55b463d95d1ac1c41664c97aeae0f25a07741d7021c1fbf3bd372529eb489", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16c55b463d95d1ac1c41664c97aeae0f25a07741d7021c1fbf3bd372529eb489", kill_on_drop: false }` [INFO] [stdout] 16c55b463d95d1ac1c41664c97aeae0f25a07741d7021c1fbf3bd372529eb489 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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=warn" "-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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c026904e9846802f62d87c51f8eafb464d3eb5c4a8e83806b15608364e16c48d [INFO] running `Command { std: "docker" "start" "-a" "c026904e9846802f62d87c51f8eafb464d3eb5c4a8e83806b15608364e16c48d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.53 [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling serde_json v1.0.59 [INFO] [stderr] Compiling ahash v0.2.19 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling itoa v0.4.6 [INFO] [stderr] Compiling quick-error v2.0.0 [INFO] [stderr] Compiling hex v0.4.2 [INFO] [stderr] Compiling dot v0.1.4 [INFO] [stderr] Compiling rand_isaac v0.2.0 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling hashbrown v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling pest_meta v2.1.3 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling graphlib v0.6.2 [INFO] [stderr] Compiling pest_generator v2.1.3 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Compiling handlebars v3.5.1 [INFO] [stderr] Compiling aoc_2020 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(iterator_fold_self)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/main.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(destructuring_assignment)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/main.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(iter_advance_by)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map` in the current scope [INFO] [stdout] --> src/solutions/day06.rs:30:22 [INFO] [stdout] | [INFO] [stdout] 30 | .fold_first(|acc: HashSet, set| acc.union(&set).cloned().collect()) [INFO] [stdout] | ^^^^^^^^^^ method not found in `Map, [closure@src/solutions/day06.rs:29:26: 29:63]>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map` in the current scope [INFO] [stdout] --> src/solutions/day06.rs:44:22 [INFO] [stdout] | [INFO] [stdout] 44 | .fold_first(|acc: HashSet, set| acc.intersection(&set).cloned().collect()) [INFO] [stdout] | ^^^^^^^^^^ method not found in `Map, [closure@src/solutions/day06.rs:43:26: 43:63]>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0554, E0599. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `aoc_2020` due to 6 previous errors [INFO] running `Command { std: "docker" "inspect" "c026904e9846802f62d87c51f8eafb464d3eb5c4a8e83806b15608364e16c48d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c026904e9846802f62d87c51f8eafb464d3eb5c4a8e83806b15608364e16c48d", kill_on_drop: false }` [INFO] [stdout] c026904e9846802f62d87c51f8eafb464d3eb5c4a8e83806b15608364e16c48d