[INFO] fetching crate cfg-expr 0.4.1...
[INFO] checking cfg-expr-0.4.1 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate cfg-expr 0.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cfg-expr 0.4.1 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cfg-expr 0.4.1
[INFO] finished tweaking crates.io crate cfg-expr 0.4.1
[INFO] tweaked toml for crates.io crate cfg-expr 0.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cfg-expr 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2f9f14bdaa657e846ee0dc2e41ed7f6a41796e8ba5f97d3d7d659b5b67cb040
[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" "c2f9f14bdaa657e846ee0dc2e41ed7f6a41796e8ba5f97d3d7d659b5b67cb040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2f9f14bdaa657e846ee0dc2e41ed7f6a41796e8ba5f97d3d7d659b5b67cb040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2f9f14bdaa657e846ee0dc2e41ed7f6a41796e8ba5f97d3d7d659b5b67cb040", kill_on_drop: false }`
[INFO] [stdout] c2f9f14bdaa657e846ee0dc2e41ed7f6a41796e8ba5f97d3d7d659b5b67cb040
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb4b33a6a492514ff1e4f32a03664369d26a0bcb3cc2be7552bee136842edb37
[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" "eb4b33a6a492514ff1e4f32a03664369d26a0bcb3cc2be7552bee136842edb37", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking cfg-expr v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "eb4b33a6a492514ff1e4f32a03664369d26a0bcb3cc2be7552bee136842edb37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb4b33a6a492514ff1e4f32a03664369d26a0bcb3cc2be7552bee136842edb37", kill_on_drop: false }`
[INFO] [stdout] eb4b33a6a492514ff1e4f32a03664369d26a0bcb3cc2be7552bee136842edb37