[INFO] fetching crate rash 0.6.0...
[INFO] testing rash-0.6.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rash 0.6.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rash 0.6.0 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 crates.io crate rash 0.6.0
[INFO] finished tweaking crates.io crate rash 0.6.0
[INFO] tweaked toml for crates.io crate rash 0.6.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded sha-1 v0.7.0
[INFO] [stderr]   Downloaded environment v0.1.1
[INFO] [stderr]   Downloaded assert_cli v0.6.3
[INFO] [stderr]   Downloaded md-5 v0.7.0
[INFO] [stderr]   Downloaded ripemd160 v0.7.0
[INFO] [stderr]   Downloaded sha3 v0.7.3
[INFO] [stderr]   Downloaded block-buffer v0.2.0-tmp
[INFO] [stderr]   Downloaded groestl v0.7.0
[INFO] [stderr]   Downloaded whirlpool v0.7.1
[INFO] [stderr]   Downloaded test-case-derive v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 50140a8270e3fe1e3cd729312db4dc756fe87076a603aaa67af5f911228ca9ad
[INFO] running `Command { std: "docker" "start" "-a" "50140a8270e3fe1e3cd729312db4dc756fe87076a603aaa67af5f911228ca9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50140a8270e3fe1e3cd729312db4dc756fe87076a603aaa67af5f911228ca9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50140a8270e3fe1e3cd729312db4dc756fe87076a603aaa67af5f911228ca9ad", kill_on_drop: false }`
[INFO] [stdout] 50140a8270e3fe1e3cd729312db4dc756fe87076a603aaa67af5f911228ca9ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 78079626ea36296335362a5ec6593829d5d20fbac316b08a4b0b0bfe91e2248a
[INFO] running `Command { std: "docker" "start" "-a" "78079626ea36296335362a5ec6593829d5d20fbac316b08a4b0b0bfe91e2248a", kill_on_drop: false }`
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling block-buffer v0.2.0-tmp
[INFO] [stderr]    Compiling crypto-mac v0.5.2
[INFO] [stderr]    Compiling groestl v0.7.0
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling blake2 v0.7.1
[INFO] [stderr]    Compiling whirlpool v0.7.1
[INFO] [stderr]    Compiling sha3 v0.7.3
[INFO] [stderr]    Compiling ripemd160 v0.7.0
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling sha-1 v0.7.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling rash v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.37s
[INFO] running `Command { std: "docker" "inspect" "78079626ea36296335362a5ec6593829d5d20fbac316b08a4b0b0bfe91e2248a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78079626ea36296335362a5ec6593829d5d20fbac316b08a4b0b0bfe91e2248a", kill_on_drop: false }`
[INFO] [stdout] 78079626ea36296335362a5ec6593829d5d20fbac316b08a4b0b0bfe91e2248a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] b9414a445b553510d0a19cdeda080f584e7007b80de5f8dd9ef66dee9e42f2b2
[INFO] running `Command { std: "docker" "start" "-a" "b9414a445b553510d0a19cdeda080f584e7007b80de5f8dd9ef66dee9e42f2b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling environment v0.1.1
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling test-case-derive v0.2.3
[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/test-case-derive-0.2.3/src/lib.rs:221:1
[INFO] [stdout]     |
[INFO] [stdout] 221 | #![feature(proc_macro)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-case-derive`
[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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "b9414a445b553510d0a19cdeda080f584e7007b80de5f8dd9ef66dee9e42f2b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9414a445b553510d0a19cdeda080f584e7007b80de5f8dd9ef66dee9e42f2b2", kill_on_drop: false }`
[INFO] [stdout] b9414a445b553510d0a19cdeda080f584e7007b80de5f8dd9ef66dee9e42f2b2