[INFO] cloning repository https://github.com/xenzh/loader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xenzh/loader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxenzh%2Floader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxenzh%2Floader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f78ec065bf979291c08bbdd899a5365470c9766
[INFO] testing xenzh/loader 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%2Fxenzh%2Floader" "/workspace/builds/worker-111/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xenzh/loader 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/xenzh/loader
[INFO] finished tweaking git repo https://github.com/xenzh/loader
[INFO] tweaked toml for git repo https://github.com/xenzh/loader written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate git repo https://github.com/xenzh/loader 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] ade9f95688879c00dbb664324ab5ea2038a3143777d9160af1ca4f1dae52c5ee
[INFO] running `Command { std: "docker" "start" "-a" "ade9f95688879c00dbb664324ab5ea2038a3143777d9160af1ca4f1dae52c5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ade9f95688879c00dbb664324ab5ea2038a3143777d9160af1ca4f1dae52c5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ade9f95688879c00dbb664324ab5ea2038a3143777d9160af1ca4f1dae52c5ee", kill_on_drop: false }`
[INFO] [stdout] ade9f95688879c00dbb664324ab5ea2038a3143777d9160af1ca4f1dae52c5ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] f4a2bd9749e32ad7b191c9013f598371a2498524eafd5b9516cfc2f45b0a675c
[INFO] running `Command { std: "docker" "start" "-a" "f4a2bd9749e32ad7b191c9013f598371a2498524eafd5b9516cfc2f45b0a675c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling rust-ini v0.12.2
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling syn v0.15.21
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling simple_logger v1.0.1
[INFO] [stderr]    Compiling toml v0.4.9
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling config v0.9.1
[INFO] [stderr]    Compiling package v0.1.0 (/opt/rustwide/workdir/package)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> package/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(decl_macro)]
[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 `package` 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" "f4a2bd9749e32ad7b191c9013f598371a2498524eafd5b9516cfc2f45b0a675c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4a2bd9749e32ad7b191c9013f598371a2498524eafd5b9516cfc2f45b0a675c", kill_on_drop: false }`
[INFO] [stdout] f4a2bd9749e32ad7b191c9013f598371a2498524eafd5b9516cfc2f45b0a675c