[INFO] cloning repository https://github.com/kara-b/kbot_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kara-b/kbot_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkara-b%2Fkbot_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkara-b%2Fkbot_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01bbbec4c1ce6497e58141e0495441c5f446bd18
[INFO] testing kara-b/kbot_rust against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkara-b%2Fkbot_rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kara-b/kbot_rust 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/kara-b/kbot_rust
[INFO] finished tweaking git repo https://github.com/kara-b/kbot_rust
[INFO] tweaked toml for git repo https://github.com/kara-b/kbot_rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kara-b/kbot_rust 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] fa87e2f5e78c6af5eff8e65628e9a0e0a407f2dfa43d2bffd0d594de75fd4115
[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" "fa87e2f5e78c6af5eff8e65628e9a0e0a407f2dfa43d2bffd0d594de75fd4115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa87e2f5e78c6af5eff8e65628e9a0e0a407f2dfa43d2bffd0d594de75fd4115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa87e2f5e78c6af5eff8e65628e9a0e0a407f2dfa43d2bffd0d594de75fd4115", kill_on_drop: false }`
[INFO] [stdout] fa87e2f5e78c6af5eff8e65628e9a0e0a407f2dfa43d2bffd0d594de75fd4115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ef05cbc75e0d0518170a09b93cca36e3984f89f83101e0fab247f8447780fe84
[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" "ef05cbc75e0d0518170a09b93cca36e3984f89f83101e0fab247f8447780fe84", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling futures-core v0.3.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-sink v0.3.6
[INFO] [stderr]    Compiling futures-io v0.3.6
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.17
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling serenity v0.9.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling uwl v0.6.0
[INFO] [stderr]    Compiling typemap_rev v0.1.3
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling urlencoding v1.1.1
[INFO] [stderr]    Compiling futures-task v0.3.6
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling input_buffer v0.3.1
[INFO] [stderr]    Compiling dashmap v4.0.0-rc6
[INFO] [stderr]    Compiling futures-channel v0.3.6
[INFO] [stderr]    Compiling os_info v2.0.8
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling md-5 v0.8.0
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling flate2 v1.0.18
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling resolv-conf v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling futures-intrusive v0.3.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling tungstenite v0.11.1
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling webpki-roots v0.20.0
[INFO] [stderr]    Compiling webpki-roots v0.18.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling command_attr v0.3.0
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr] error: could not compile `rustls`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rustls --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustls-0.18.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="dangerous_configuration"' --cfg 'feature="default"' --cfg 'feature="log"' --cfg 'feature="logging"' -C metadata=a020008c16999d90 -C extra-filename=-a020008c16999d90 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-f3ec148fd12597ac.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-e85f58044ae91ffe.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-995a7fc168e31f43.rmeta --extern sct=/opt/rustwide/target/debug/deps/libsct-46470b766fd84fc7.rmeta --extern webpki=/opt/rustwide/target/debug/deps/libwebpki-45a4a80bb9228be0.rmeta --cap-lints allow --cap-lints=warn -L native=/opt/rustwide/target/debug/build/ring-acf8397b22b7e217/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ef05cbc75e0d0518170a09b93cca36e3984f89f83101e0fab247f8447780fe84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef05cbc75e0d0518170a09b93cca36e3984f89f83101e0fab247f8447780fe84", kill_on_drop: false }`
[INFO] [stdout] ef05cbc75e0d0518170a09b93cca36e3984f89f83101e0fab247f8447780fe84