[INFO] fetching crate cttw 0.0.10...
[INFO] checking cttw-0.0.10 against beta for pr-78714
[INFO] extracting crate cttw 0.0.10 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cttw 0.0.10 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 crates.io crate cttw 0.0.10
[INFO] finished tweaking crates.io crate cttw 0.0.10
[INFO] tweaked toml for crates.io crate cttw 0.0.10 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b804eb44ca8e27e5fec81901cfd5c5d919101726dd1734ca6c748c4e0a0c136
[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" "1b804eb44ca8e27e5fec81901cfd5c5d919101726dd1734ca6c748c4e0a0c136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b804eb44ca8e27e5fec81901cfd5c5d919101726dd1734ca6c748c4e0a0c136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b804eb44ca8e27e5fec81901cfd5c5d919101726dd1734ca6c748c4e0a0c136", kill_on_drop: false }`
[INFO] [stdout] 1b804eb44ca8e27e5fec81901cfd5c5d919101726dd1734ca6c748c4e0a0c136
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f07ebf6d1c06781a85cf7229cb648ac126d98f21f33ab95b731b0e58bf3247c
[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" "4f07ebf6d1c06781a85cf7229cb648ac126d98f21f33ab95b731b0e58bf3247c", 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] [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 v0.7.17`
[INFO] [stderr]     ... which is depended on by `curl v0.3.11`
[INFO] [stderr]     ... which is depended on by `oauth-client v0.1.4`
[INFO] [stderr]     ... which is depended on by `cttw v0.0.10 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `openssl`
[INFO] [stderr] 
[INFO] [stderr] package `openssl-sys v0.9.58`
[INFO] [stderr]     ... which is depended on by `openssl v0.9.24`
[INFO] [stderr]     ... which is depended on by `native-tls v0.1.5`
[INFO] [stderr]     ... which is depended on by `hyper-native-tls v0.2.4`
[INFO] [stderr]     ... which is depended on by `reqwest v0.5.2`
[INFO] [stderr]     ... which is depended on by `oauth-client v0.2.0`
[INFO] [stderr]     ... which is depended on by `twitter-api v0.2.1`
[INFO] [stderr]     ... which is depended on by `cttw v0.0.10 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `openssl`
[INFO] running `Command { std: "docker" "inspect" "4f07ebf6d1c06781a85cf7229cb648ac126d98f21f33ab95b731b0e58bf3247c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f07ebf6d1c06781a85cf7229cb648ac126d98f21f33ab95b731b0e58bf3247c", kill_on_drop: false }`
[INFO] [stdout] 4f07ebf6d1c06781a85cf7229cb648ac126d98f21f33ab95b731b0e58bf3247c