[INFO] cloning repository https://github.com/rschmukler/rust-cassandra-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rschmukler/rust-cassandra-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frschmukler%2Frust-cassandra-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frschmukler%2Frust-cassandra-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5163450df6a72919f33537944a1c8dfd53eafe0f
[INFO] checking rschmukler/rust-cassandra-playground against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frschmukler%2Frust-cassandra-playground" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rschmukler/rust-cassandra-playground 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 git repo https://github.com/rschmukler/rust-cassandra-playground
[INFO] finished tweaking git repo https://github.com/rschmukler/rust-cassandra-playground
[INFO] tweaked toml for git repo https://github.com/rschmukler/rust-cassandra-playground written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/rschmukler/rust-cassandra-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[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]     Updating git repository `https://github.com/tupshin/cassandra-rs`
[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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a20ca66d3bc005705f1110c3ad4de1d618f0132aa184c4fe7425dbdbeadf30a
[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" "2a20ca66d3bc005705f1110c3ad4de1d618f0132aa184c4fe7425dbdbeadf30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a20ca66d3bc005705f1110c3ad4de1d618f0132aa184c4fe7425dbdbeadf30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a20ca66d3bc005705f1110c3ad4de1d618f0132aa184c4fe7425dbdbeadf30a", kill_on_drop: false }`
[INFO] [stdout] 2a20ca66d3bc005705f1110c3ad4de1d618f0132aa184c4fe7425dbdbeadf30a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a3417c4b38599a636f26f11690a0d6ab6d4d7124705ae3ec160cbe756da32a0
[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" "9a3417c4b38599a636f26f11690a0d6ab6d4d7124705ae3ec160cbe756da32a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling decimal v0.2.0
[INFO] [stderr]     Checking error-chain v0.7.2
[INFO] [stderr]    Compiling syntex_syntax v0.24.0
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking cassandra-sys v0.8.7
[INFO] [stdout] error: to use a constant of type `Span` in a pattern, `Span` must be annotated with `#[derive(PartialEq, Eq)]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.24.0/src/errors/emitter.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 |             Some(COMMAND_LINE_SP) => self.emit_(FileLine(COMMAND_LINE_SP), msg, code, lvl),
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntex_syntax`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "9a3417c4b38599a636f26f11690a0d6ab6d4d7124705ae3ec160cbe756da32a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a3417c4b38599a636f26f11690a0d6ab6d4d7124705ae3ec160cbe756da32a0", kill_on_drop: false }`
[INFO] [stdout] 9a3417c4b38599a636f26f11690a0d6ab6d4d7124705ae3ec160cbe756da32a0