[INFO] fetching crate slackbot 0.2.0...
[INFO] testing slackbot-0.2.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate slackbot 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate slackbot 0.2.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slackbot 0.2.0
[INFO] finished tweaking crates.io crate slackbot 0.2.0
[INFO] tweaked toml for crates.io crate slackbot 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded websocket v0.12.2
[INFO] [stderr]   Downloaded slack v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fc2e5b54f830db637ce938ab1ff02b93d0ea7cb8e232cbec8531ccdce0fad7e
[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" "1fc2e5b54f830db637ce938ab1ff02b93d0ea7cb8e232cbec8531ccdce0fad7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fc2e5b54f830db637ce938ab1ff02b93d0ea7cb8e232cbec8531ccdce0fad7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc2e5b54f830db637ce938ab1ff02b93d0ea7cb8e232cbec8531ccdce0fad7e", kill_on_drop: false }`
[INFO] [stdout] 1fc2e5b54f830db637ce938ab1ff02b93d0ea7cb8e232cbec8531ccdce0fad7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47e46297f6c1aeec39ea3eb8dc8e3c8469b0f8c41be588871346e8136edb62b3
[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" "47e46297f6c1aeec39ea3eb8dc8e3c8469b0f8c41be588871346e8136edb62b3", kill_on_drop: false }`
[INFO] [stderr] error: multiple packages link to native library `openssl`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `openssl-sys v0.6.7`
[INFO] [stderr]     ... which satisfies dependency `openssl-sys = "^0.6.7"` (locked to 0.6.7) of package `openssl v0.6.7`
[INFO] [stderr]     ... which satisfies dependency `openssl = "^0.6.0"` (locked to 0.6.7) of package `cookie v0.1.21`
[INFO] [stderr]     ... which satisfies dependency `cookie = "^0.1"` (locked to 0.1.21) of package `hyper v0.6.16`
[INFO] [stderr]     ... which satisfies dependency `hyper = "~0.6.14"` (locked to 0.6.16) of package `slack v0.8.3`
[INFO] [stderr]     ... which satisfies dependency `slack = "^0.8.2"` (locked to 0.8.3) of package `slackbot v0.2.0 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `openssl`
[INFO] [stderr] 
[INFO] [stderr] package `openssl-sys v0.9.72`
[INFO] [stderr]     ... which satisfies dependency `ffi = "^0.9.69"` (locked to 0.9.72) of package `openssl v0.10.38`
[INFO] [stderr]     ... which satisfies dependency `openssl = "*"` (locked to 0.10.38) of package `websocket v0.12.2`
[INFO] [stderr]     ... which satisfies dependency `websocket = "~0.12.2"` (locked to 0.12.2) of package `slack v0.8.3`
[INFO] [stderr]     ... which satisfies dependency `slack = "^0.8.2"` (locked to 0.8.3) of package `slackbot v0.2.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `openssl`
[INFO] running `Command { std: "docker" "inspect" "47e46297f6c1aeec39ea3eb8dc8e3c8469b0f8c41be588871346e8136edb62b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47e46297f6c1aeec39ea3eb8dc8e3c8469b0f8c41be588871346e8136edb62b3", kill_on_drop: false }`
[INFO] [stdout] 47e46297f6c1aeec39ea3eb8dc8e3c8469b0f8c41be588871346e8136edb62b3