[INFO] crate howto 0.3.1 is already in cache
[INFO] checking howto-0.3.1 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66852
[INFO] extracting crate howto 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate howto 0.3.1 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate howto 0.3.1
[INFO] finished tweaking crates.io crate howto 0.3.1
[INFO] tweaked toml for crates.io crate howto 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 579420e4fe3cf26bc25bb20a4bc68dfae30feb2715ab42260c1938698697ccd5
[INFO] running `"docker" "start" "-a" "579420e4fe3cf26bc25bb20a4bc68dfae30feb2715ab42260c1938698697ccd5"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling isahc v0.7.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.24
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]     Checking string_cache v0.7.5
[INFO] [stderr]     Checking sluice v0.4.2
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking surf v1.0.3
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]     Checking html5ever v0.22.5
[INFO] [stderr]     Checking scraper v0.10.1
[INFO] [stderr]     Checking howto v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `"docker" "inspect" "579420e4fe3cf26bc25bb20a4bc68dfae30feb2715ab42260c1938698697ccd5"`
[INFO] running `"docker" "rm" "-f" "579420e4fe3cf26bc25bb20a4bc68dfae30feb2715ab42260c1938698697ccd5"`
[INFO] [stdout] 579420e4fe3cf26bc25bb20a4bc68dfae30feb2715ab42260c1938698697ccd5