[INFO] cloning repository https://github.com/nbrendler/keybase-chat-tui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nbrendler/keybase-chat-tui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbrendler%2Fkeybase-chat-tui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbrendler%2Fkeybase-chat-tui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94486f0e7f79c3cbd30ca4e47d155be5f21b103d
[INFO] checking nbrendler/keybase-chat-tui against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbrendler%2Fkeybase-chat-tui" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nbrendler/keybase-chat-tui on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nbrendler/keybase-chat-tui
[INFO] finished tweaking git repo https://github.com/nbrendler/keybase-chat-tui
[INFO] tweaked toml for git repo https://github.com/nbrendler/keybase-chat-tui written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/nbrendler/keybase-chat-tui already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-13/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[INFO] the lockfile is outdated, regenerating it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" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39d5555f1fea0a6a16895ab2c411092401798220328c821ca142d664eeea4351
[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" "39d5555f1fea0a6a16895ab2c411092401798220328c821ca142d664eeea4351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d5555f1fea0a6a16895ab2c411092401798220328c821ca142d664eeea4351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d5555f1fea0a6a16895ab2c411092401798220328c821ca142d664eeea4351", kill_on_drop: false }`
[INFO] [stdout] 39d5555f1fea0a6a16895ab2c411092401798220328c821ca142d664eeea4351
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9a8ada1456118329b902aaaa66a675cd877136c5053fa7053ff4eacbcd2cf71
[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" "a9a8ada1456118329b902aaaa66a675cd877136c5053fa7053ff4eacbcd2cf71", kill_on_drop: false }`
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling mockall_derive v0.8.3
[INFO] [stderr]    Compiling darling_macro v0.10.2
[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/mockall_derive-0.8.3/src/lib.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![cfg_attr(feature = "nightly_derive", feature(proc_macro_diagnostic))]
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking enum-map v0.6.4
[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 `mockall_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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a9a8ada1456118329b902aaaa66a675cd877136c5053fa7053ff4eacbcd2cf71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a8ada1456118329b902aaaa66a675cd877136c5053fa7053ff4eacbcd2cf71", kill_on_drop: false }`
[INFO] [stdout] a9a8ada1456118329b902aaaa66a675cd877136c5053fa7053ff4eacbcd2cf71