[INFO] fetching crate rusty-os 0.1.0...
[INFO] checking rusty-os-0.1.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate rusty-os 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rusty-os 0.1.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusty-os 0.1.0
[INFO] finished tweaking crates.io crate rusty-os 0.1.0
[INFO] tweaked toml for crates.io crate rusty-os 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rusty-os 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] 11db2c5fc74ad6c24044202bbf176d45555ef83f541b932fc47a1be716eef4af
[INFO] running `Command { std: "docker" "start" "-a" "11db2c5fc74ad6c24044202bbf176d45555ef83f541b932fc47a1be716eef4af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11db2c5fc74ad6c24044202bbf176d45555ef83f541b932fc47a1be716eef4af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11db2c5fc74ad6c24044202bbf176d45555ef83f541b932fc47a1be716eef4af", kill_on_drop: false }`
[INFO] [stdout] 11db2c5fc74ad6c24044202bbf176d45555ef83f541b932fc47a1be716eef4af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1366aaa03f409ab1a188020610fb039e0324971ba62e6e6e2b0fc4078ea5dba
[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" "c1366aaa03f409ab1a188020610fb039e0324971ba62e6e6e2b0fc4078ea5dba", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty-os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "c1366aaa03f409ab1a188020610fb039e0324971ba62e6e6e2b0fc4078ea5dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1366aaa03f409ab1a188020610fb039e0324971ba62e6e6e2b0fc4078ea5dba", kill_on_drop: false }`
[INFO] [stdout] c1366aaa03f409ab1a188020610fb039e0324971ba62e6e6e2b0fc4078ea5dba