[INFO] cloning repository https://github.com/krgn/bufr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krgn/bufr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrgn%2Fbufr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrgn%2Fbufr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c6858cea0338ed2b253bdd668a23d21defb75f8
[INFO] checking krgn/bufr against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrgn%2Fbufr" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krgn/bufr on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krgn/bufr
[INFO] finished tweaking git repo https://github.com/krgn/bufr
[INFO] tweaked toml for git repo https://github.com/krgn/bufr written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/krgn/bufr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84fe937887db73cac9f7cf39091f1f07b17035249e936e95b27766bebe0afd36
[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" "84fe937887db73cac9f7cf39091f1f07b17035249e936e95b27766bebe0afd36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84fe937887db73cac9f7cf39091f1f07b17035249e936e95b27766bebe0afd36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84fe937887db73cac9f7cf39091f1f07b17035249e936e95b27766bebe0afd36", kill_on_drop: false }`
[INFO] [stdout] 84fe937887db73cac9f7cf39091f1f07b17035249e936e95b27766bebe0afd36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fcc18b4b144a0eaba6a28f27cb49f88a18d1f8c627cabc0c3a56e11827169a6
[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" "5fcc18b4b144a0eaba6a28f27cb49f88a18d1f8c627cabc0c3a56e11827169a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking rand_pcg v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking rand_os v0.1.1
[INFO] [stderr]     Checking rand v0.4.5
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking criterion-stats v0.3.0
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking quickcheck v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.35
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking criterion-plot v0.2.7
[INFO] [stderr]     Checking handlebars v1.0.5
[INFO] [stderr]     Checking criterion v0.2.7
[INFO] [stderr]     Checking bufr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(result_map_or_else)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(result_map_or_else)]
[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 `bufr` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5fcc18b4b144a0eaba6a28f27cb49f88a18d1f8c627cabc0c3a56e11827169a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fcc18b4b144a0eaba6a28f27cb49f88a18d1f8c627cabc0c3a56e11827169a6", kill_on_drop: false }`
[INFO] [stdout] 5fcc18b4b144a0eaba6a28f27cb49f88a18d1f8c627cabc0c3a56e11827169a6
