[INFO] cloning repository https://github.com/AlexCreamer/Bootstrap-Rust-Calendar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlexCreamer/Bootstrap-Rust-Calendar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexCreamer%2FBootstrap-Rust-Calendar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexCreamer%2FBootstrap-Rust-Calendar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1376bdcdc9fe1e59576dc9d678d889c2985c8d8d
[INFO] testing AlexCreamer/Bootstrap-Rust-Calendar against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexCreamer%2FBootstrap-Rust-Calendar" "/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/AlexCreamer/Bootstrap-Rust-Calendar on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlexCreamer/Bootstrap-Rust-Calendar
[INFO] finished tweaking git repo https://github.com/AlexCreamer/Bootstrap-Rust-Calendar
[INFO] tweaked toml for git repo https://github.com/AlexCreamer/Bootstrap-Rust-Calendar written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/AlexCreamer/Bootstrap-Rust-Calendar already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (rocket_contrib) 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 num-iter v0.1.32
[INFO] [stderr]   Downloaded vec_map v0.4.0
[INFO] [stderr]   Downloaded num-bigint v0.1.35
[INFO] [stderr]   Downloaded error-chain v0.7.2
[INFO] [stderr]   Downloaded chrono v0.2.25
[INFO] [stderr]   Downloaded rusty-cheddar v0.3.3
[INFO] [stderr]   Downloaded uuid v0.1.18
[INFO] [stderr]   Downloaded num v0.1.36
[INFO] [stderr]   Downloaded gcc v0.3.43
[INFO] [stderr]   Downloaded ip v1.1.1
[INFO] [stderr]   Downloaded num-integer v0.1.32
[INFO] [stderr]   Downloaded term v0.2.14
[INFO] [stderr]   Downloaded toml v0.1.30
[INFO] [stderr]   Downloaded serde_json v0.9.6
[INFO] [stderr]   Downloaded num-rational v0.1.35
[INFO] [stderr]   Downloaded traitobject v0.0.1
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded version_check v0.1.0
[INFO] [stderr]   Downloaded matches v0.1.4
[INFO] [stderr]   Downloaded syntex_syntax v0.24.0
[INFO] [stderr]   Downloaded unicode-xid v0.0.3
[INFO] [stderr]   Downloaded strsim v0.4.1
[INFO] [stderr]   Downloaded serde_codegen_internals v0.13.0
[INFO] [stderr]   Downloaded clap v1.5.5
[INFO] [stderr]   Downloaded rustc-demangle v0.1.3
[INFO] [stderr]   Downloaded lazy_static v0.2.2
[INFO] [stderr]   Downloaded backtrace v0.3.0
[INFO] [stderr]   Downloaded num-traits v0.1.36
[INFO] [stderr]   Downloaded unicode-normalization v0.1.4
[INFO] [stderr]   Downloaded httparse v1.2.1
[INFO] [stderr]   Downloaded term-painter v0.2.3
[INFO] [stderr]   Downloaded hyper v0.10.4
[INFO] [stderr]   Downloaded cassandra-sys v0.8.7
[INFO] [stderr]   Downloaded rocket_contrib v0.2.0
[INFO] [stderr]   Downloaded cookie v0.6.0
[INFO] [stderr]   Downloaded url v1.4.0
[INFO] [stderr]   Downloaded mime v0.2.2
[INFO] [stderr]   Downloaded cassandra v0.8.1
[INFO] [stderr]   Downloaded serde v0.9.7
[INFO] [stderr]   Downloaded quote v0.3.12
[INFO] [stderr]   Downloaded unicode-bidi v0.2.5
[INFO] [stderr]   Downloaded decimal v0.2.0
[INFO] [stderr]   Downloaded state v0.2.0
[INFO] [stderr]   Downloaded rocket v0.2.0
[INFO] [stderr]   Downloaded unicase v1.4.0
[INFO] [stderr]   Downloaded syn v0.11.4
[INFO] [stderr]   Downloaded rocket_codegen v0.2.0
[INFO] [stderr]   Downloaded term v0.4.5
[INFO] [stderr]   Downloaded serde_derive v0.9.7
[INFO] [stderr]   Downloaded backtrace-sys v0.1.9
[INFO] [stderr]   Downloaded num-complex v0.1.35
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9964dc7226bb802045fe52d1e79be098a1d4583c653d28c89f66a736be46f325
[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" "9964dc7226bb802045fe52d1e79be098a1d4583c653d28c89f66a736be46f325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9964dc7226bb802045fe52d1e79be098a1d4583c653d28c89f66a736be46f325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9964dc7226bb802045fe52d1e79be098a1d4583c653d28c89f66a736be46f325", kill_on_drop: false }`
[INFO] [stdout] 9964dc7226bb802045fe52d1e79be098a1d4583c653d28c89f66a736be46f325
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb12573f13edb08c12e1c63d303cca008abf3df0e57eb85aff0e1dea59059a41
[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" "bb12573f13edb08c12e1c63d303cca008abf3df0e57eb85aff0e1dea59059a41", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (rocket_contrib) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling version_check v0.1.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling ansi_term v0.7.5
[INFO] [stderr]    Compiling vec_map v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]    Compiling httparse v1.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling cassandra-sys v0.8.7
[INFO] [stderr]    Compiling state v0.2.0
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling dtoa v0.4.1
[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/state-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling serde v0.9.7
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lazy_static v0.2.2
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `state`
[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" "bb12573f13edb08c12e1c63d303cca008abf3df0e57eb85aff0e1dea59059a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb12573f13edb08c12e1c63d303cca008abf3df0e57eb85aff0e1dea59059a41", kill_on_drop: false }`
[INFO] [stdout] bb12573f13edb08c12e1c63d303cca008abf3df0e57eb85aff0e1dea59059a41