[INFO] fetching crate remote-clipboard 0.4.0...
[INFO] documenting remote-clipboard-0.4.0 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate remote-clipboard 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate remote-clipboard 0.4.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate remote-clipboard 0.4.0
[INFO] finished tweaking crates.io crate remote-clipboard 0.4.0
[INFO] tweaked toml for crates.io crate remote-clipboard 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate remote-clipboard 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.71
[INFO] [stderr]   Downloaded dotenv v0.15.0
[INFO] [stderr]   Downloaded predicates-core v1.0.2
[INFO] [stderr]   Downloaded assert_cmd v1.0.3
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.21
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.71
[INFO] [stderr]   Downloaded mocktopus_macros v0.7.10
[INFO] [stderr]   Downloaded hyper v0.14.4
[INFO] [stderr]   Downloaded predicates v1.0.7
[INFO] [stderr]   Downloaded pin-project-internal v1.0.5
[INFO] [stderr]   Downloaded tokio-util v0.6.3
[INFO] [stderr]   Downloaded pin-project v1.0.5
[INFO] [stderr]   Downloaded security-framework-sys v2.1.1
[INFO] [stderr]   Downloaded web-sys v0.3.48
[INFO] [stderr]   Downloaded mio v0.7.9
[INFO] [stderr]   Downloaded predicates-tree v1.0.2
[INFO] [stderr]   Downloaded security-framework v2.1.1
[INFO] [stderr]   Downloaded serde_json v1.0.63
[INFO] [stderr]   Downloaded reqwest v0.11.1
[INFO] [stderr]   Downloaded once_cell v1.7.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.71
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.71
[INFO] [stderr]   Downloaded mocktopus v0.7.10
[INFO] [stderr]   Downloaded js-sys v0.3.48
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.71
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6aa95442bbe102bc1eece9e44eedf0f81674ee520186e76c1f38ca808e31754
[INFO] running `Command { std: "docker" "start" "-a" "f6aa95442bbe102bc1eece9e44eedf0f81674ee520186e76c1f38ca808e31754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6aa95442bbe102bc1eece9e44eedf0f81674ee520186e76c1f38ca808e31754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6aa95442bbe102bc1eece9e44eedf0f81674ee520186e76c1f38ca808e31754", kill_on_drop: false }`
[INFO] [stdout] f6aa95442bbe102bc1eece9e44eedf0f81674ee520186e76c1f38ca808e31754
[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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d06cc9a6f381d73ba9447b975bcfe69feae53859f6c6caf14d1f6086157265a
[INFO] running `Command { std: "docker" "start" "-a" "4d06cc9a6f381d73ba9447b975bcfe69feae53859f6c6caf14d1f6086157265a", 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 libc v0.2.86
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling serde_json v1.0.63
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling mocktopus_macros v0.7.10
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mocktopus_macros-0.7.10/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(proc_macro_diagnostic)]
[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 `mocktopus_macros` 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" "4d06cc9a6f381d73ba9447b975bcfe69feae53859f6c6caf14d1f6086157265a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d06cc9a6f381d73ba9447b975bcfe69feae53859f6c6caf14d1f6086157265a", kill_on_drop: false }`
[INFO] [stdout] 4d06cc9a6f381d73ba9447b975bcfe69feae53859f6c6caf14d1f6086157265a
