[INFO] fetching crate fn_mut 0.1.0...
[INFO] checking fn_mut-0.1.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate fn_mut 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate fn_mut 0.1.0 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 fn_mut 0.1.0
[INFO] finished tweaking crates.io crate fn_mut 0.1.0
[INFO] tweaked toml for crates.io crate fn_mut 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] e442a01f59d16c39b30afdb5c7c681b73f26ce9ae3e3e577373d95bac883800e
[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" "e442a01f59d16c39b30afdb5c7c681b73f26ce9ae3e3e577373d95bac883800e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e442a01f59d16c39b30afdb5c7c681b73f26ce9ae3e3e577373d95bac883800e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e442a01f59d16c39b30afdb5c7c681b73f26ce9ae3e3e577373d95bac883800e", kill_on_drop: false }`
[INFO] [stdout] e442a01f59d16c39b30afdb5c7c681b73f26ce9ae3e3e577373d95bac883800e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 491590f3a6ebeb3250ef1c92f2cbc4848543b4d54517177adbd8c823c22b3c08
[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" "491590f3a6ebeb3250ef1c92f2cbc4848543b4d54517177adbd8c823c22b3c08", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking fn_mut 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:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #![feature(proc_macro)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/config.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / lazy_static! {
[INFO] [stdout] 11 | |     static ref RE1: Regex = Regex::new(r#"([a-zA-Z0-9_]+)( = "([a-zA-Z0-9,_]*)")?"#).unwrap();
[INFO] [stdout] 12 | |     static ref RE2: Regex = Regex::new(r#"[a-zA-Z0-9_]*"#).unwrap();
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/config.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / lazy_static! {
[INFO] [stdout] 11 | |     static ref RE1: Regex = Regex::new(r#"([a-zA-Z0-9_]+)( = "([a-zA-Z0-9,_]*)")?"#).unwrap();
[INFO] [stdout] 12 | |     static ref RE2: Regex = Regex::new(r#"[a-zA-Z0-9_]*"#).unwrap();
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #![feature(proc_macro)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/config.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / lazy_static! {
[INFO] [stdout] 11 | |     static ref RE1: Regex = Regex::new(r#"([a-zA-Z0-9_]+)( = "([a-zA-Z0-9,_]*)")?"#).unwrap();
[INFO] [stdout] 12 | |     static ref RE2: Regex = Regex::new(r#"[a-zA-Z0-9_]*"#).unwrap();
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/config.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / lazy_static! {
[INFO] [stdout] 11 | |     static ref RE1: Regex = Regex::new(r#"([a-zA-Z0-9_]+)( = "([a-zA-Z0-9,_]*)")?"#).unwrap();
[INFO] [stdout] 12 | |     static ref RE2: Regex = Regex::new(r#"[a-zA-Z0-9_]*"#).unwrap();
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning 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; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fn_mut`.
[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 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "491590f3a6ebeb3250ef1c92f2cbc4848543b4d54517177adbd8c823c22b3c08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "491590f3a6ebeb3250ef1c92f2cbc4848543b4d54517177adbd8c823c22b3c08", kill_on_drop: false }`
[INFO] [stdout] 491590f3a6ebeb3250ef1c92f2cbc4848543b4d54517177adbd8c823c22b3c08
