[INFO] fetching crate mathml 0.4.4...
[INFO] checking mathml-0.4.4 against try#5d9095c550fcec9e458ce8d6b0c04a217641db66 for pr-77153
[INFO] extracting crate mathml 0.4.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mathml 0.4.4 on toolchain 5d9095c550fcec9e458ce8d6b0c04a217641db66
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mathml 0.4.4
[INFO] finished tweaking crates.io crate mathml 0.4.4
[INFO] tweaked toml for crates.io crate mathml 0.4.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded roxmltree v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1bad3ef0518089b39d24a7bbcb67b654a5f21559a6a400b06a3b72dd5eb9fc4
[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" "b1bad3ef0518089b39d24a7bbcb67b654a5f21559a6a400b06a3b72dd5eb9fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1bad3ef0518089b39d24a7bbcb67b654a5f21559a6a400b06a3b72dd5eb9fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1bad3ef0518089b39d24a7bbcb67b654a5f21559a6a400b06a3b72dd5eb9fc4", kill_on_drop: false }`
[INFO] [stdout] b1bad3ef0518089b39d24a7bbcb67b654a5f21559a6a400b06a3b72dd5eb9fc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 964954f3c1adffeac7fd8a79d84ca6bb6f4a5e1bb2b504b7da23c6cc8c020fca
[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" "964954f3c1adffeac7fd8a79d84ca6bb6f4a5e1bb2b504b7da23c6cc8c020fca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.22
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking roxmltree v0.10.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking serde_plain v0.3.0
[INFO] [stderr]     Checking mathml v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.02s
[INFO] running `Command { std: "docker" "inspect" "964954f3c1adffeac7fd8a79d84ca6bb6f4a5e1bb2b504b7da23c6cc8c020fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964954f3c1adffeac7fd8a79d84ca6bb6f4a5e1bb2b504b7da23c6cc8c020fca", kill_on_drop: false }`
[INFO] [stdout] 964954f3c1adffeac7fd8a79d84ca6bb6f4a5e1bb2b504b7da23c6cc8c020fca