[INFO] cloning repository https://github.com/MakotoE/rust-fah-pauser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MakotoE/rust-fah-pauser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMakotoE%2Frust-fah-pauser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMakotoE%2Frust-fah-pauser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba60a7dcef995a2b563415a8201769c263d5cd59
[INFO] testing MakotoE/rust-fah-pauser 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%2FMakotoE%2Frust-fah-pauser" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MakotoE/rust-fah-pauser 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/MakotoE/rust-fah-pauser
[INFO] finished tweaking git repo https://github.com/MakotoE/rust-fah-pauser
[INFO] tweaked toml for git repo https://github.com/MakotoE/rust-fah-pauser written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/MakotoE/rust-fah-pauser 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b698654303c7f47c779c7a1016355a0a9d169850ce21e3fee2e5b0f33219dfcd
[INFO] running `Command { std: "docker" "start" "-a" "b698654303c7f47c779c7a1016355a0a9d169850ce21e3fee2e5b0f33219dfcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b698654303c7f47c779c7a1016355a0a9d169850ce21e3fee2e5b0f33219dfcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b698654303c7f47c779c7a1016355a0a9d169850ce21e3fee2e5b0f33219dfcd", kill_on_drop: false }`
[INFO] [stdout] b698654303c7f47c779c7a1016355a0a9d169850ce21e3fee2e5b0f33219dfcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 0ec89794f303b4e0fb03dddf4927ba9ddf59fb014ea6571f9664d3fb5460aa35
[INFO] running `Command { std: "docker" "start" "-a" "0ec89794f303b4e0fb03dddf4927ba9ddf59fb014ea6571f9664d3fb5460aa35", 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] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling cc v1.0.55
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling bytes v0.5.5
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling dirs v3.0.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling backtrace v0.3.41
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling parse_duration v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling fahapi v0.1.1
[INFO] [stderr]    Compiling fah-pauser 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(test)]
[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 `fah-pauser` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0ec89794f303b4e0fb03dddf4927ba9ddf59fb014ea6571f9664d3fb5460aa35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec89794f303b4e0fb03dddf4927ba9ddf59fb014ea6571f9664d3fb5460aa35", kill_on_drop: false }`
[INFO] [stdout] 0ec89794f303b4e0fb03dddf4927ba9ddf59fb014ea6571f9664d3fb5460aa35