[INFO] fetching crate milter-callback 0.2.1...
[INFO] checking milter-callback-0.2.1 against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] extracting crate milter-callback 0.2.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate milter-callback 0.2.1 on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate milter-callback 0.2.1
[INFO] finished tweaking crates.io crate milter-callback 0.2.1
[INFO] tweaked toml for crates.io crate milter-callback 0.2.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "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] a756d30d8e4c4b8cc4511f39adb4ecae40a8902ef307b6de9fc2559e791e4bc8
[INFO] running `Command { std: "docker" "start" "-a" "a756d30d8e4c4b8cc4511f39adb4ecae40a8902ef307b6de9fc2559e791e4bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a756d30d8e4c4b8cc4511f39adb4ecae40a8902ef307b6de9fc2559e791e4bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a756d30d8e4c4b8cc4511f39adb4ecae40a8902ef307b6de9fc2559e791e4bc8", kill_on_drop: false }`
[INFO] [stdout] a756d30d8e4c4b8cc4511f39adb4ecae40a8902ef307b6de9fc2559e791e4bc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11ffe9308dfe56adcba5203a7de2dd7659a0f1f23433721dca109bc4d3a39ee9
[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" "11ffe9308dfe56adcba5203a7de2dd7659a0f1f23433721dca109bc4d3a39ee9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]     Checking milter-callback v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `Command { std: "docker" "inspect" "11ffe9308dfe56adcba5203a7de2dd7659a0f1f23433721dca109bc4d3a39ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ffe9308dfe56adcba5203a7de2dd7659a0f1f23433721dca109bc4d3a39ee9", kill_on_drop: false }`
[INFO] [stdout] 11ffe9308dfe56adcba5203a7de2dd7659a0f1f23433721dca109bc4d3a39ee9