[INFO] fetching crate gust 0.1.4...
[INFO] checking gust-0.1.4 against beta for pr-78714
[INFO] extracting crate gust 0.1.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate gust 0.1.4 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 gust 0.1.4
[INFO] finished tweaking crates.io crate gust 0.1.4
[INFO] tweaked toml for crates.io crate gust 0.1.4 written to /workspace/builds/worker-0/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 6bf735b445363807e94f5e7a7ede988c9ea890b2cbd8b0d26c082fc0be205044
[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" "6bf735b445363807e94f5e7a7ede988c9ea890b2cbd8b0d26c082fc0be205044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bf735b445363807e94f5e7a7ede988c9ea890b2cbd8b0d26c082fc0be205044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf735b445363807e94f5e7a7ede988c9ea890b2cbd8b0d26c082fc0be205044", kill_on_drop: false }`
[INFO] [stdout] 6bf735b445363807e94f5e7a7ede988c9ea890b2cbd8b0d26c082fc0be205044
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 494ebd2c08a9201b7ece9c464d9ecb727cb5491d6ab95df0dd2a8c761606e5b3
[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" "494ebd2c08a9201b7ece9c464d9ecb727cb5491d6ab95df0dd2a8c761606e5b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bytecount v0.6.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cargo_metadata v0.10.0
[INFO] [stderr]    Compiling skeptic v0.13.5
[INFO] [stderr]    Compiling liquid v0.13.7
[INFO] [stdout] error[E0283]: type annotations needed for `std::string::String`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/liquid-0.13.7/src/compiler/parser.rs:87:80
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     Token::Identifier(ref x) => indexes.push(Index::with_key(x.as_ref())),
[INFO] [stdout]    |                                                                                ^^^^^^ cannot infer type for struct `std::string::String`
[INFO] [stdout] ...
[INFO] [stdout] 99 |                             .ok_or_else(|| Error::Parser(format!("Invalid index {}", x)))?;
[INFO] [stdout]    |                                                          ------------------------------ consider giving `res` a type
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `std::string::String: AsRef<_>`
[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 E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `liquid`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "494ebd2c08a9201b7ece9c464d9ecb727cb5491d6ab95df0dd2a8c761606e5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "494ebd2c08a9201b7ece9c464d9ecb727cb5491d6ab95df0dd2a8c761606e5b3", kill_on_drop: false }`
[INFO] [stdout] 494ebd2c08a9201b7ece9c464d9ecb727cb5491d6ab95df0dd2a8c761606e5b3