[INFO] fetching crate pattern-3 0.5.0... [INFO] testing pattern-3-0.5.0 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate pattern-3 0.5.0 into /workspace/builds/worker-91/source [INFO] validating manifest of crates.io crate pattern-3 0.5.0 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 crates.io crate pattern-3 0.5.0 [INFO] finished tweaking crates.io crate pattern-3 0.5.0 [INFO] tweaked toml for crates.io crate pattern-3 0.5.0 written to /workspace/builds/worker-91/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] c61dbb6eb4196f599c07451aa00524066b0c06b37b5e2d5bdf354844b4408bd6 [INFO] running `Command { std: "docker" "start" "-a" "c61dbb6eb4196f599c07451aa00524066b0c06b37b5e2d5bdf354844b4408bd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c61dbb6eb4196f599c07451aa00524066b0c06b37b5e2d5bdf354844b4408bd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c61dbb6eb4196f599c07451aa00524066b0c06b37b5e2d5bdf354844b4408bd6", kill_on_drop: false }` [INFO] [stdout] c61dbb6eb4196f599c07451aa00524066b0c06b37b5e2d5bdf354844b4408bd6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 49194765b88d4b78ece9899e4c3ce97cefdc81f2cd515dcb8dbd8a8cc1976fe7 [INFO] running `Command { std: "docker" "start" "-a" "49194765b88d4b78ece9899e4c3ce97cefdc81f2cd515dcb8dbd8a8cc1976fe7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling pattern-3 v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | / #![feature( [INFO] [stdout] 2 | | specialization, [INFO] [stdout] 3 | | // used in two places: [INFO] [stdout] 4 | | // 1. to support using the same two-way algorithm for non-Ord slices [INFO] [stdout] ... | [INFO] [stdout] 17 | | // some useful library features [INFO] [stdout] 18 | | )] [INFO] [stdout] | |__^ [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:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | 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: `...` range patterns are deprecated [INFO] [stdout] --> src/omgwtf8/wtf8.rs:193:21 [INFO] [stdout] | [INFO] [stdout] 193 | 0xf00000...0xffffffff => { [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/omgwtf8/wtf8.rs:196:21 [INFO] [stdout] | [INFO] [stdout] 196 | 0x800000...0xbfffff => self.0 & 0x3f | self.0 >> 2 & 0x3c0 | 0xdc00, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/omgwtf8/wtf8.rs:323:31 [INFO] [stdout] | [INFO] [stdout] 323 | ascii_byte @ 0x00 ... 0x7F => ascii_byte, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `pattern-3` due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "49194765b88d4b78ece9899e4c3ce97cefdc81f2cd515dcb8dbd8a8cc1976fe7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49194765b88d4b78ece9899e4c3ce97cefdc81f2cd515dcb8dbd8a8cc1976fe7", kill_on_drop: false }` [INFO] [stdout] 49194765b88d4b78ece9899e4c3ce97cefdc81f2cd515dcb8dbd8a8cc1976fe7