[INFO] fetching crate reparser 0.1.11...
[INFO] testing reparser-0.1.11 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate reparser 0.1.11 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate reparser 0.1.11 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 reparser 0.1.11
[INFO] finished tweaking crates.io crate reparser 0.1.11
[INFO] tweaked toml for crates.io crate reparser 0.1.11 written to /workspace/builds/worker-84/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] 45b14ed4c67ccde9da6b4b3663463417ad5952efe5bd3ba82a6cb3119b578082
[INFO] running `Command { std: "docker" "start" "-a" "45b14ed4c67ccde9da6b4b3663463417ad5952efe5bd3ba82a6cb3119b578082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45b14ed4c67ccde9da6b4b3663463417ad5952efe5bd3ba82a6cb3119b578082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45b14ed4c67ccde9da6b4b3663463417ad5952efe5bd3ba82a6cb3119b578082", kill_on_drop: false }`
[INFO] [stdout] 45b14ed4c67ccde9da6b4b3663463417ad5952efe5bd3ba82a6cb3119b578082
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] eb0de81dffea767e4078f5c781e63d09a667649299efc6bda347ee54e7a31d81
[INFO] running `Command { std: "docker" "start" "-a" "eb0de81dffea767e4078f5c781e63d09a667649299efc6bda347ee54e7a31d81", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling lalrpop-util v0.19.6
[INFO] [stderr]    Compiling reparser v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / #![feature(
[INFO] [stdout] 10 | |     box_patterns,
[INFO] [stdout] 11 | |     box_syntax,
[INFO] [stdout] 12 | |     drain_filter,
[INFO] [stdout] 13 | |     map_first_last,
[INFO] [stdout] 14 | |     btree_drain_filter
[INFO] [stdout] 15 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reparser` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "eb0de81dffea767e4078f5c781e63d09a667649299efc6bda347ee54e7a31d81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb0de81dffea767e4078f5c781e63d09a667649299efc6bda347ee54e7a31d81", kill_on_drop: false }`
[INFO] [stdout] eb0de81dffea767e4078f5c781e63d09a667649299efc6bda347ee54e7a31d81