[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 beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-williams%2Fziggurat" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matt-williams/ziggurat 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 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-6/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" "+beta-2020-07-24" "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]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/koute/stdweb.git`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/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[INFO] the lockfile is outdated, regenerating it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" "+beta-2020-07-24" "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" "+beta-2020-07-24" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded gl_generator v0.8.0
[INFO] [stderr]   Downloaded peg v0.5.7
[INFO] [stderr]   Downloaded gl v0.9.0
[INFO] [stderr]   Downloaded webgl v0.1.0
[INFO] [stderr]   Downloaded ply-rs v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2f8e8ffdc7a3b92c2d5743057812126e3f149651173ec3aca6514f74fc849c2b
[INFO] running `Command { std: "docker" "start" "-a" "2f8e8ffdc7a3b92c2d5743057812126e3f149651173ec3aca6514f74fc849c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f8e8ffdc7a3b92c2d5743057812126e3f149651173ec3aca6514f74fc849c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f8e8ffdc7a3b92c2d5743057812126e3f149651173ec3aca6514f74fc849c2b", kill_on_drop: false }`
[INFO] [stdout] 2f8e8ffdc7a3b92c2d5743057812126e3f149651173ec3aca6514f74fc849c2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f709d897dc3a9b3cde45fa5dec4703278c014829ff622873434b6b3760153c7a
[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" "f709d897dc3a9b3cde45fa5dec4703278c014829ff622873434b6b3760153c7a", 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 khronos_api v2.2.0
[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 base-x v0.2.6
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling peg v0.5.7
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling glenum v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[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 gl_generator v0.8.0
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling gl v0.9.0
[INFO] [stderr]    Compiling ply-rs v0.1.2
[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 beta 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" "f709d897dc3a9b3cde45fa5dec4703278c014829ff622873434b6b3760153c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f709d897dc3a9b3cde45fa5dec4703278c014829ff622873434b6b3760153c7a", kill_on_drop: false }`
[INFO] [stdout] f709d897dc3a9b3cde45fa5dec4703278c014829ff622873434b6b3760153c7a