[INFO] fetching crate stager 0.3.4...
[INFO] testing stager-0.3.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate stager 0.3.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate stager 0.3.4 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 stager 0.3.4
[INFO] finished tweaking crates.io crate stager 0.3.4
[INFO] tweaked toml for crates.io crate stager 0.3.4 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 44ace1c0bf9e8fba5bc455c69e12be5290178eb604b27962bf73d9f8663e9fef
[INFO] running `Command { std: "docker" "start" "-a" "44ace1c0bf9e8fba5bc455c69e12be5290178eb604b27962bf73d9f8663e9fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44ace1c0bf9e8fba5bc455c69e12be5290178eb604b27962bf73d9f8663e9fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44ace1c0bf9e8fba5bc455c69e12be5290178eb604b27962bf73d9f8663e9fef", kill_on_drop: false }`
[INFO] [stdout] 44ace1c0bf9e8fba5bc455c69e12be5290178eb604b27962bf73d9f8663e9fef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 7eea8cd646dfc0a883207c7f4e2e8919e37c44001d18f8a5ccfd7fbf3f1ddb37
[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" "7eea8cd646dfc0a883207c7f4e2e8919e37c44001d18f8a5ccfd7fbf3f1ddb37", kill_on_drop: false }`
[INFO] [stderr]    Compiling globset v0.4.6
[INFO] [stderr]    Compiling liquid v0.14.3
[INFO] [stderr]    Compiling ignore v0.4.17
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/liquid-0.14.3/src/compiler/parser.rs:88:80
[INFO] [stdout]    |
[INFO] [stdout] 88 |                     Token::Identifier(ref x) => indexes.push(Index::with_key(x.as_ref())),
[INFO] [stdout]    |                                                                              --^^^^^^--
[INFO] [stdout]    |                                                                              | |
[INFO] [stdout]    |                                                                              | cannot infer type for type parameter `T` declared on the trait `AsRef`
[INFO] [stdout]    |                                                                              this method call resolves to `&T`
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7eea8cd646dfc0a883207c7f4e2e8919e37c44001d18f8a5ccfd7fbf3f1ddb37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eea8cd646dfc0a883207c7f4e2e8919e37c44001d18f8a5ccfd7fbf3f1ddb37", kill_on_drop: false }`
[INFO] [stdout] 7eea8cd646dfc0a883207c7f4e2e8919e37c44001d18f8a5ccfd7fbf3f1ddb37