[INFO] cloning repository https://github.com/matt-williams/ziggurat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matt-williams/ziggurat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-williams%2Fziggurat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-williams%2Fziggurat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 692ab2a70039a8fde3a10db6fc3687d3fad524dc
[INFO] testing matt-williams/ziggurat against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-williams%2Fziggurat" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matt-williams/ziggurat on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matt-williams/ziggurat
[INFO] removed path dependency webgl from git repo https://github.com/matt-williams/ziggurat
[INFO] finished tweaking git repo https://github.com/matt-williams/ziggurat
[INFO] tweaked toml for git repo https://github.com/matt-williams/ziggurat written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/matt-williams/ziggurat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (webgl) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/koute/stdweb.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (webgl) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d67401714218fee1de57d5e3621b11678b6ca768b4b418002a0663163f6ddb9c
[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" "d67401714218fee1de57d5e3621b11678b6ca768b4b418002a0663163f6ddb9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d67401714218fee1de57d5e3621b11678b6ca768b4b418002a0663163f6ddb9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d67401714218fee1de57d5e3621b11678b6ca768b4b418002a0663163f6ddb9c", kill_on_drop: false }`
[INFO] [stdout] d67401714218fee1de57d5e3621b11678b6ca768b4b418002a0663163f6ddb9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] e30b10db266f771f9d3c1ae1145da16bb41e577673cb6caa93f9a1184be819df
[INFO] running `Command { std: "docker" "start" "-a" "e30b10db266f771f9d3c1ae1145da16bb41e577673cb6caa93f9a1184be819df", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (webgl) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.2 (https://github.com/koute/stdweb.git?rev=f1fc5e3#f1fc5e32)
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]    Compiling base-x v0.2.6
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling glenum v0.1.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.2 (https://github.com/koute/stdweb.git?rev=f1fc5e3#f1fc5e32)
[INFO] [stderr]    Compiling stdweb v0.4.10 (https://github.com/koute/stdweb.git?rev=f1fc5e3#f1fc5e32)
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling gl_generator v0.8.0
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling gl v0.9.0
[INFO] [stderr]    Compiling peg v0.6.3
[INFO] [stderr]    Compiling ply-rs v0.1.3
[INFO] [stderr]    Compiling stdweb-derive v0.5.1 (https://github.com/koute/stdweb.git?rev=f1fc5e3#f1fc5e32)
[INFO] [stderr]    Compiling webgl v0.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/webgl-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[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 `webgl`.
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e30b10db266f771f9d3c1ae1145da16bb41e577673cb6caa93f9a1184be819df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e30b10db266f771f9d3c1ae1145da16bb41e577673cb6caa93f9a1184be819df", kill_on_drop: false }`
[INFO] [stdout] e30b10db266f771f9d3c1ae1145da16bb41e577673cb6caa93f9a1184be819df
