[INFO] fetching crate inari 0.3.1...
[INFO] checking inari-0.3.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate inari 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate inari 0.3.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate inari 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate inari 0.3.1
[INFO] tweaked toml for crates.io crate inari 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate inari 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3082541054c1f92be530650201b92d816e341b29d2d32bff295679fd9bfa4e1e
[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" "3082541054c1f92be530650201b92d816e341b29d2d32bff295679fd9bfa4e1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3082541054c1f92be530650201b92d816e341b29d2d32bff295679fd9bfa4e1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3082541054c1f92be530650201b92d816e341b29d2d32bff295679fd9bfa4e1e", kill_on_drop: false }`
[INFO] [stdout] 3082541054c1f92be530650201b92d816e341b29d2d32bff295679fd9bfa4e1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 978f7c673dfb8152cf887084c91007fa56388922efdb0da58d931da58bb29f11
[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" "978f7c673dfb8152cf887084c91007fa56388922efdb0da58d931da58bb29f11", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.3.3
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.3.1
[INFO] [stderr]    Compiling rug v1.10.0
[INFO] [stderr]    Compiling hexf-parse v0.1.0
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]    Compiling proc-macro-hack v0.3.3
[INFO] [stderr]    Compiling hexf-impl v0.1.0
[INFO] [stderr]     Checking hexf v0.1.0
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking inari v0.3.1 (/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(asm)]
[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(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'tau_constant'
[INFO] [stdout]    --> src/constants.rs:147:24
[INFO] [stdout]     |
[INFO] [stdout] 147 |             check!($c, std::f64::consts::$c);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 180 |         check!(TAU);
[INFO] [stdout]     |         ------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #66770 <https://github.com/rust-lang/rust/issues/66770> for more information
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `inari`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "978f7c673dfb8152cf887084c91007fa56388922efdb0da58d931da58bb29f11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978f7c673dfb8152cf887084c91007fa56388922efdb0da58d931da58bb29f11", kill_on_drop: false }`
[INFO] [stdout] 978f7c673dfb8152cf887084c91007fa56388922efdb0da58d931da58bb29f11
