[INFO] crate cobweb 0.2.2 is already in cache [INFO] testing cobweb-0.2.2 against beta-2020-07-24 for beta-1.46-1 [INFO] extracting crate cobweb 0.2.2 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate cobweb 0.2.2 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 crates.io crate cobweb 0.2.2 [INFO] finished tweaking crates.io crate cobweb 0.2.2 [INFO] tweaked toml for crates.io crate cobweb 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml [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] 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: only one of `license` or `license-file` is necessary [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" "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] [stdout] 6e833bc2de2c212ba6cdd2242817dfb8c0a8833ec851ab133dfe45bc6363b50d [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" "6e833bc2de2c212ba6cdd2242817dfb8c0a8833ec851ab133dfe45bc6363b50d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6e833bc2de2c212ba6cdd2242817dfb8c0a8833ec851ab133dfe45bc6363b50d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e833bc2de2c212ba6cdd2242817dfb8c0a8833ec851ab133dfe45bc6363b50d", kill_on_drop: false }` [INFO] [stdout] 6e833bc2de2c212ba6cdd2242817dfb8c0a8833ec851ab133dfe45bc6363b50d [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" "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] f31f3a21f8abf15906f1c8960de691a04c8cbadc74b7179a074855cf2414e5a2 [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" "f31f3a21f8abf15906f1c8960de691a04c8cbadc74b7179a074855cf2414e5a2", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] Compiling futures v0.1.29 [INFO] [stderr] Compiling constant_time_eq v0.1.5 [INFO] [stderr] Compiling cc v1.0.58 [INFO] [stderr] Compiling byte-tools v0.2.0 [INFO] [stderr] Compiling arrayref v0.3.6 [INFO] [stderr] Compiling subtle v1.0.0 [INFO] [stderr] Compiling scoped-tls v0.1.2 [INFO] [stderr] Compiling zeroize v0.5.2 [INFO] [stderr] Compiling subtle v2.2.3 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.34 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling base64 v0.9.3 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling syn v1.0.38 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling block-buffer v0.3.3 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling mio-uds v0.6.8 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling generic-array v0.9.0 [INFO] [stderr] Compiling tun-tap v0.1.2 [INFO] [stderr] Compiling tun-tap-mac v0.1.2 [INFO] [stderr] Compiling digest v0.7.6 [INFO] [stderr] Compiling crypto-mac v0.6.2 [INFO] [stderr] Compiling crypto-mac v0.5.2 [INFO] [stderr] Compiling block-cipher-trait v0.6.2 [INFO] [stderr] Compiling dbl v0.2.1 [INFO] [stderr] Compiling crypto-mac v0.7.0 [INFO] [stderr] Compiling stream-cipher v0.3.2 [INFO] [stderr] Compiling sha2 v0.7.1 [INFO] [stderr] Compiling hmac v0.6.3 [INFO] [stderr] Compiling blake2 v0.7.1 [INFO] [stderr] Compiling aes-soft v0.3.3 [INFO] [stderr] Compiling cmac v0.2.0 [INFO] [stderr] Compiling pmac v0.2.0 [INFO] [stderr] Compiling ctr v0.3.2 [INFO] [stderr] Compiling tokio-executor v0.1.10 [INFO] [stderr] Compiling tokio-io v0.1.13 [INFO] [stderr] Compiling tokio-sync v0.1.8 [INFO] [stderr] Compiling pbkdf2 v0.2.3 [INFO] [stderr] Compiling tokio-threadpool v0.1.18 [INFO] [stderr] Compiling tokio-timer v0.2.13 [INFO] [stderr] Compiling tokio-current-thread v0.1.7 [INFO] [stderr] Compiling aes v0.3.2 [INFO] [stderr] Compiling miscreant v0.4.2 [INFO] [stderr] Compiling tokio-codec v0.1.2 [INFO] [stderr] Compiling tokio-reactor v0.1.12 [INFO] [stderr] Compiling tokio-fs v0.1.7 [INFO] [stderr] Compiling tokio-udp v0.1.6 [INFO] [stderr] Compiling tokio-uds v0.2.7 [INFO] [stderr] Compiling tokio-tcp v0.1.4 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling tokio-core v0.1.17 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling keybob v0.3.1 [INFO] [stderr] Compiling cobweb v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(trivial_bounds)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(unboxed_closures)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(fn_traits)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `cobweb`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "f31f3a21f8abf15906f1c8960de691a04c8cbadc74b7179a074855cf2414e5a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f31f3a21f8abf15906f1c8960de691a04c8cbadc74b7179a074855cf2414e5a2", kill_on_drop: false }` [INFO] [stdout] f31f3a21f8abf15906f1c8960de691a04c8cbadc74b7179a074855cf2414e5a2