[INFO] fetching crate slack-rust 0.0.1-alpha...
[INFO] testing slack-rust-0.0.1-alpha against 1.59.0 for beta-1.60-1
[INFO] extracting crate slack-rust 0.0.1-alpha into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate slack-rust 0.0.1-alpha on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slack-rust 0.0.1-alpha
[INFO] finished tweaking crates.io crate slack-rust 0.0.1-alpha
[INFO] tweaked toml for crates.io crate slack-rust 0.0.1-alpha written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate slack-rust 0.0.1-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0b981786df6f2fa0ca3c5eff25f211e9f1ba3918eb142ad23dea8ff0f39b3c1
[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" "d0b981786df6f2fa0ca3c5eff25f211e9f1ba3918eb142ad23dea8ff0f39b3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0b981786df6f2fa0ca3c5eff25f211e9f1ba3918eb142ad23dea8ff0f39b3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b981786df6f2fa0ca3c5eff25f211e9f1ba3918eb142ad23dea8ff0f39b3c1", kill_on_drop: false }`
[INFO] [stdout] d0b981786df6f2fa0ca3c5eff25f211e9f1ba3918eb142ad23dea8ff0f39b3c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "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] 0ee42b8e365cc3e5f56ce3d2c2e5fba7004e08fd0c3564b9d87607a6b2462899
[INFO] running `Command { std: "docker" "start" "-a" "0ee42b8e365cc3e5f56ce3d2c2e5fba7004e08fd0c3564b9d87607a6b2462899", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling fastrand v1.6.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling bumpalo v3.8.0
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling curl v0.4.41
[INFO] [stderr]    Compiling isahc v0.9.14
[INFO] [stderr]    Compiling http-types v2.12.0
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling infer v0.2.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.7+1.45.0
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.51+curl-7.80.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]    Compiling spinning_top v0.2.4
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling flume v0.9.2
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling sluice v0.5.5
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling universal-hash v0.4.1
[INFO] [stderr]    Compiling crypto-mac v0.10.1
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling polyval v0.4.5
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling aes-soft v0.6.4
[INFO] [stderr]    Compiling ctr v0.6.0
[INFO] [stderr]    Compiling blocking v1.1.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling hkdf v0.10.0
[INFO] [stderr]    Compiling ghash v0.3.1
[INFO] [stderr]    Compiling aes v0.6.0
[INFO] [stderr]    Compiling aes-gcm v0.8.0
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.1
[INFO] [stderr]    Compiling webpki-roots v0.21.1
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling pin-project-internal v1.0.9
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling serde_with_macros v1.5.1
[INFO] [stderr]    Compiling pin-project v1.0.9
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling polling v2.2.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling rustls v0.19.1
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]    Compiling async-tls v0.11.0
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling js-sys v0.3.55
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling serde_qs v0.8.5
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling serde_with v1.11.0
[INFO] [stderr]    Compiling web-sys v0.3.55
[INFO] [stderr]    Compiling tungstenite v0.16.0
[INFO] [stderr]    Compiling async-tungstenite v0.16.1
[INFO] [stderr]    Compiling http-client v6.5.1
[INFO] [stderr]    Compiling surf v2.3.2
[INFO] [stderr]    Compiling slack-rust v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 28s
[INFO] running `Command { std: "docker" "inspect" "0ee42b8e365cc3e5f56ce3d2c2e5fba7004e08fd0c3564b9d87607a6b2462899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ee42b8e365cc3e5f56ce3d2c2e5fba7004e08fd0c3564b9d87607a6b2462899", kill_on_drop: false }`
[INFO] [stdout] 0ee42b8e365cc3e5f56ce3d2c2e5fba7004e08fd0c3564b9d87607a6b2462899
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25485924ce7c6f67ad27b74a4996db3bcb0aea6430017f1c6e516124923b36b2
[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" "25485924ce7c6f67ad27b74a4996db3bcb0aea6430017f1c6e516124923b36b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling downcast v0.11.0
[INFO] [stderr]    Compiling fragile v1.0.0
[INFO] [stderr]    Compiling mockall_derive v0.11.0
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling mockall v0.11.0
[INFO] [stderr]    Compiling slack-rust v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `slack-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name socket_mode --edition=2018 examples/socket_mode.rs --error-format=json --json=diagnostic-rendered-ansi,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=c41227f588f9fe40 -C extra-filename=-c41227f588f9fe40 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-14851d1136824090.rlib --extern async_tls=/opt/rustwide/target/debug/deps/libasync_tls-a6815c94626faebe.rlib --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-e5acb12a82394482.so --extern async_tungstenite=/opt/rustwide/target/debug/deps/libasync_tungstenite-cf7908ce84b13622.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-0a792e90aaf96100.rlib --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-a3a57fd989d68495.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-6a60882635a6e83c.rlib --extern mockall=/opt/rustwide/target/debug/deps/libmockall-51b112879fe8db2b.rlib --extern rustls=/opt/rustwide/target/debug/deps/librustls-13fd3c6c2cf91ac8.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-da69dc182cada6f8.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-73f7bbf76e48f2ca.rlib --extern serde_with=/opt/rustwide/target/debug/deps/libserde_with-67d4edae1ae5ed97.rlib --extern slack_rust=/opt/rustwide/target/debug/deps/libslack_rust-843b272599060876.rlib --extern surf=/opt/rustwide/target/debug/deps/libsurf-10ba83883932db7e.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-d3447cb8c337c625.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/ring-178e22f1334d5110/out -L native=/opt/rustwide/target/debug/build/curl-sys-bbd2d1e5132959f1/out/build -L native=/opt/rustwide/target/debug/build/libnghttp2-sys-94d9ef6cd72fd6d4/out/i/lib` (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" "25485924ce7c6f67ad27b74a4996db3bcb0aea6430017f1c6e516124923b36b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25485924ce7c6f67ad27b74a4996db3bcb0aea6430017f1c6e516124923b36b2", kill_on_drop: false }`
[INFO] [stdout] 25485924ce7c6f67ad27b74a4996db3bcb0aea6430017f1c6e516124923b36b2