[INFO] fetching crate equt-md-ext 0.2.7...
[INFO] checking equt-md-ext-0.2.7 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate equt-md-ext 0.2.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate equt-md-ext 0.2.7 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate equt-md-ext 0.2.7
[INFO] finished tweaking crates.io crate equt-md-ext 0.2.7
[INFO] tweaked toml for crates.io crate equt-md-ext 0.2.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c271257a1893349e94b3c7fb1adc0182d6471be54350fd08d27593d45173f2f
[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" "5c271257a1893349e94b3c7fb1adc0182d6471be54350fd08d27593d45173f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c271257a1893349e94b3c7fb1adc0182d6471be54350fd08d27593d45173f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c271257a1893349e94b3c7fb1adc0182d6471be54350fd08d27593d45173f2f", kill_on_drop: false }`
[INFO] [stdout] 5c271257a1893349e94b3c7fb1adc0182d6471be54350fd08d27593d45173f2f
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 51c4778c341f1a6c2b38a9514a6090f021b63baaa9ac65de2053245636a1280e
[INFO] running `Command { std: "docker" "start" "-a" "51c4778c341f1a6c2b38a9514a6090f021b63baaa9ac65de2053245636a1280e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]     Checking equt-md v0.0.1
[INFO] [stderr]    Compiling copy_dir v0.1.2
[INFO] [stderr]    Compiling libquickjs-sys v0.7.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking equt-md-frontmatter v0.1.1
[INFO] [stderr]     Checking quick-js v0.3.4
[INFO] [stderr]     Checking katex v0.2.4
[INFO] [stderr]     Checking equt-md-error v0.1.1
[INFO] [stderr]     Checking equt-md-ext v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `Command { std: "docker" "inspect" "51c4778c341f1a6c2b38a9514a6090f021b63baaa9ac65de2053245636a1280e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c4778c341f1a6c2b38a9514a6090f021b63baaa9ac65de2053245636a1280e", kill_on_drop: false }`
[INFO] [stdout] 51c4778c341f1a6c2b38a9514a6090f021b63baaa9ac65de2053245636a1280e