[INFO] cloning repository https://github.com/mmai/activue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmai/activue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmai%2Factivue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmai%2Factivue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1de71437f20380df06b479b71529d8aa1334ad9
[INFO] testing mmai/activue against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmai%2Factivue" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmai/activue on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmai/activue
[INFO] finished tweaking git repo https://github.com/mmai/activue
[INFO] tweaked toml for git repo https://github.com/mmai/activue written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/mmai/activue already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd29375892d1bd98635d3e10f4e1d6c71b4e3fc2da73420000da096e0b665d27
[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" "dd29375892d1bd98635d3e10f4e1d6c71b4e3fc2da73420000da096e0b665d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd29375892d1bd98635d3e10f4e1d6c71b4e3fc2da73420000da096e0b665d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd29375892d1bd98635d3e10f4e1d6c71b4e3fc2da73420000da096e0b665d27", kill_on_drop: false }`
[INFO] [stdout] dd29375892d1bd98635d3e10f4e1d6c71b4e3fc2da73420000da096e0b665d27
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b91e04e311640e8f271a024c4cf35cdedd89e6c9b921cdce68e4bb0a07d87fb6
[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" "b91e04e311640e8f271a024c4cf35cdedd89e6c9b921cdce68e4bb0a07d87fb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling futures v0.1.27
[INFO] [stderr]    Compiling copyless v0.1.3
[INFO] [stderr]    Compiling ascii_utils v0.9.3
[INFO] [stderr]    Compiling gettext-utils v0.1.0 (https://github.com/Plume-org/gettext-macros/?rev=a7c605f7edd6bfbfbfe7778026bfefd88d82db10#a7c605f7)
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling libsqlite3-sys v0.12.0
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling gettext v0.3.0 (https://github.com/Plume-org/gettext/?rev=294c54d74c699fbc66502b480a37cc66c1daa7f3#294c54d7)
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling fast_chemail v0.9.6
[INFO] [stderr]    Compiling block-cipher-trait v0.6.2
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling blowfish v0.4.0
[INFO] [stderr]    Compiling http v0.1.17
[INFO] [stderr]    Compiling string v0.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling gettext-macros v0.4.0 (https://github.com/Plume-org/gettext-macros/?rev=a7c605f7edd6bfbfbfe7778026bfefd88d82db10#a7c605f7)
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/gettext-macros-217519cc29cc6df4/a7c605f/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene, proc_macro_quote, proc_macro_span, uniform_paths)]
[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 `gettext-macros`
[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" "b91e04e311640e8f271a024c4cf35cdedd89e6c9b921cdce68e4bb0a07d87fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91e04e311640e8f271a024c4cf35cdedd89e6c9b921cdce68e4bb0a07d87fb6", kill_on_drop: false }`
[INFO] [stdout] b91e04e311640e8f271a024c4cf35cdedd89e6c9b921cdce68e4bb0a07d87fb6