[INFO] cloning repository https://github.com/SpiralP/rust-classicube-cef-loader-plugin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SpiralP/rust-classicube-cef-loader-plugin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpiralP%2Frust-classicube-cef-loader-plugin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpiralP%2Frust-classicube-cef-loader-plugin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1effb85c0279a23102fd2b711bbfb154b039c230
[INFO] testing SpiralP/rust-classicube-cef-loader-plugin against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpiralP%2Frust-classicube-cef-loader-plugin" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SpiralP/rust-classicube-cef-loader-plugin on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/SpiralP/rust-classicube-cef-loader-plugin
[INFO] finished tweaking git repo https://github.com/SpiralP/rust-classicube-cef-loader-plugin
[INFO] tweaked toml for git repo https://github.com/SpiralP/rust-classicube-cef-loader-plugin written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/SpiralP/rust-classicube-cef-loader-plugin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2426ac63712f10847012f85177a32bcbf367a2e0f886d3cf81d65bb6272ee605
[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" "2426ac63712f10847012f85177a32bcbf367a2e0f886d3cf81d65bb6272ee605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2426ac63712f10847012f85177a32bcbf367a2e0f886d3cf81d65bb6272ee605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2426ac63712f10847012f85177a32bcbf367a2e0f886d3cf81d65bb6272ee605", kill_on_drop: false }`
[INFO] [stdout] 2426ac63712f10847012f85177a32bcbf367a2e0f886d3cf81d65bb6272ee605
[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=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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 94120c58caf757949f58deb4be416fa4b156dd4fff998d7530c71aa71fe68863
[INFO] running `Command { std: "docker" "start" "-a" "94120c58caf757949f58deb4be416fa4b156dd4fff998d7530c71aa71fe68863", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling futures-sink v0.3.13
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling futures-io v0.3.13
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling bzip2-sys v0.1.10+1.0.8
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling http v0.2.3
[INFO] [stderr]    Compiling tinyvec v1.1.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling clang-sys v1.1.1
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling mio v0.7.9
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling idna v0.2.2
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling http-body v0.4.0
[INFO] [stderr]    Compiling tar v0.4.33
[INFO] [stderr]    Compiling backtrace v0.3.56
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]    Compiling bzip2 v0.4.2
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tracing-attributes v0.1.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling pin-project v1.0.5
[INFO] [stderr]    Compiling tracing v0.1.25
[INFO] [stderr]    Compiling classicube-sys v1.2.3 (https://github.com/SpiralP/rust-classicube-sys.git#0a39c621)
[INFO] [stderr]    Compiling futures-executor v0.3.13
[INFO] [stderr]    Compiling tokio-util v0.6.3
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling futures v0.3.13
[INFO] [stderr]    Compiling async-dispatcher v0.1.0 (https://github.com/SpiralP/rust-async-dispatcher.git#63dffd4d)
[INFO] [stderr]    Compiling h2 v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling hyper v0.14.4
[INFO] [stderr]    Compiling tracing-subscriber v0.2.16
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rust-classicube-sys-db50d2c321df658a/0a39c62/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(external_doc)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rust-classicube-sys-db50d2c321df658a/0a39c62/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(external_doc)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `classicube-sys` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "94120c58caf757949f58deb4be416fa4b156dd4fff998d7530c71aa71fe68863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94120c58caf757949f58deb4be416fa4b156dd4fff998d7530c71aa71fe68863", kill_on_drop: false }`
[INFO] [stdout] 94120c58caf757949f58deb4be416fa4b156dd4fff998d7530c71aa71fe68863