[INFO] fetching crate slackbot 0.2.0...
[INFO] testing slackbot-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate slackbot 0.2.0 into /workspace/builds/worker-62/source
[INFO] validating manifest of crates.io crate slackbot 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-62/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a038a6301603bb147ebcd5d876527a0dcd25116d37977703a234eefe17aecf0
[INFO] running `Command { std: "docker" "start" "-a" "0a038a6301603bb147ebcd5d876527a0dcd25116d37977703a234eefe17aecf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a038a6301603bb147ebcd5d876527a0dcd25116d37977703a234eefe17aecf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a038a6301603bb147ebcd5d876527a0dcd25116d37977703a234eefe17aecf0", kill_on_drop: false }`
[INFO] [stdout] 0a038a6301603bb147ebcd5d876527a0dcd25116d37977703a234eefe17aecf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abce42ee4c622b4b77fea468c65572ac42f463ec9c746db9140f9f321ade770b
[INFO] running `Command { std: "docker" "start" "-a" "abce42ee4c622b4b77fea468c65572ac42f463ec9c746db9140f9f321ade770b", 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"` of package `openssl v0.6.7`
[INFO] [stderr]     ... which satisfies dependency `openssl = "=0.6.7"` of package `cookie v0.1.21`
[INFO] [stderr]     ... which satisfies dependency `cookie = "=0.1.21"` of package `hyper v0.6.16`
[INFO] [stderr]     ... which satisfies dependency `hyper = "=0.6.16"` of package `slack v0.8.3`
[INFO] [stderr]     ... which satisfies dependency `slack = "=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 v0.9.66`
[INFO] [stderr]     ... which satisfies dependency `ffi = "=0.9.66"` of package `openssl v0.10.36`
[INFO] [stderr]     ... which satisfies dependency `openssl = "=0.10.36"` of package `websocket v0.12.2`
[INFO] [stderr]     ... which satisfies dependency `websocket = "=0.12.2"` of package `slack v0.8.3`
[INFO] [stderr]     ... which satisfies dependency `slack = "=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" "abce42ee4c622b4b77fea468c65572ac42f463ec9c746db9140f9f321ade770b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abce42ee4c622b4b77fea468c65572ac42f463ec9c746db9140f9f321ade770b", kill_on_drop: false }`
[INFO] [stdout] abce42ee4c622b4b77fea468c65572ac42f463ec9c746db9140f9f321ade770b