[INFO] fetching crate sc-keystore 2.0.0...
[INFO] testing sc-keystore-2.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sc-keystore 2.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sc-keystore 2.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sc-keystore 2.0.0
[INFO] finished tweaking crates.io crate sc-keystore 2.0.0
[INFO] tweaked toml for crates.io crate sc-keystore 2.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff5fd7190b6fbb0b03398448a4f0e319bcb41d3a665afb1fbf429985ef71d404
[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" "ff5fd7190b6fbb0b03398448a4f0e319bcb41d3a665afb1fbf429985ef71d404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff5fd7190b6fbb0b03398448a4f0e319bcb41d3a665afb1fbf429985ef71d404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff5fd7190b6fbb0b03398448a4f0e319bcb41d3a665afb1fbf429985ef71d404", kill_on_drop: false }`
[INFO] [stdout] ff5fd7190b6fbb0b03398448a4f0e319bcb41d3a665afb1fbf429985ef71d404
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 862e1a2e0e7f292551064bc918c05af01416d138d495c52ac1b60d0ede15da3a
[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" "862e1a2e0e7f292551064bc918c05af01416d138d495c52ac1b60d0ede15da3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling parity-scale-codec v1.3.5
[INFO] [stderr]    Compiling curve25519-dalek v2.1.0
[INFO] [stderr]    Compiling curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling tracing-subscriber v0.2.15
[INFO] [stderr]    Compiling schnorrkel v0.9.1
[INFO] [stderr]    Compiling substrate-bip39 v0.4.2
[INFO] [stderr]    Compiling impl-codec v0.4.2
[INFO] [stderr]    Compiling sp-storage v2.0.0
[INFO] [stderr]    Compiling sp-wasm-interface v2.0.0
[INFO] [stderr]    Compiling sp-tracing v2.0.0
[INFO] [stderr]    Compiling primitive-types v0.7.3
[INFO] [stderr]    Compiling sp-externalities v0.8.0
[INFO] [stderr]    Compiling parity-util-mem v0.7.0
[INFO] [stderr]    Compiling sp-runtime-interface v2.0.0
[INFO] [stderr]    Compiling memory-db v0.24.1
[INFO] [stderr]    Compiling sp-core v2.0.0
[INFO] [stderr]    Compiling sp-trie v2.0.0
[INFO] [stderr]    Compiling sp-state-machine v0.8.0
[INFO] [stderr]    Compiling sp-io v2.0.0
[INFO] [stderr]    Compiling sp-application-crypto v2.0.0
[INFO] [stderr]    Compiling sc-keystore v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "862e1a2e0e7f292551064bc918c05af01416d138d495c52ac1b60d0ede15da3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "862e1a2e0e7f292551064bc918c05af01416d138d495c52ac1b60d0ede15da3a", kill_on_drop: false }`
[INFO] [stdout] 862e1a2e0e7f292551064bc918c05af01416d138d495c52ac1b60d0ede15da3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0598fb90ef17eaf44168fbf323130f1535b9aa4884b5ba10edfdc885019dbd57
[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" "0598fb90ef17eaf44168fbf323130f1535b9aa4884b5ba10edfdc885019dbd57", kill_on_drop: false }`
[INFO] [stderr]    Compiling sc-keystore v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tempfile`
[INFO] [stdout]    --> src/lib.rs:467:6
[INFO] [stdout]     |
[INFO] [stdout] 467 |     use tempfile::TempDir;
[INFO] [stdout]     |         ^^^^^^^^ use of undeclared crate or module `tempfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sc-keystore`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0598fb90ef17eaf44168fbf323130f1535b9aa4884b5ba10edfdc885019dbd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0598fb90ef17eaf44168fbf323130f1535b9aa4884b5ba10edfdc885019dbd57", kill_on_drop: false }`
[INFO] [stdout] 0598fb90ef17eaf44168fbf323130f1535b9aa4884b5ba10edfdc885019dbd57