[INFO] fetching crate atsamd21j18a 0.7.0...
[INFO] checking atsamd21j18a-0.7.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate atsamd21j18a 0.7.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate atsamd21j18a 0.7.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atsamd21j18a 0.7.0
[INFO] finished tweaking crates.io crate atsamd21j18a 0.7.0
[INFO] tweaked toml for crates.io crate atsamd21j18a 0.7.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4ca5fc9308eee4cc680950ec16903e3f7052d67c315d73b1d8916dfc3077618
[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" "a4ca5fc9308eee4cc680950ec16903e3f7052d67c315d73b1d8916dfc3077618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4ca5fc9308eee4cc680950ec16903e3f7052d67c315d73b1d8916dfc3077618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4ca5fc9308eee4cc680950ec16903e3f7052d67c315d73b1d8916dfc3077618", kill_on_drop: false }`
[INFO] [stdout] a4ca5fc9308eee4cc680950ec16903e3f7052d67c315d73b1d8916dfc3077618
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36b21e21c6bcc0971b670b1af6035ef06116a0d9615e3227fe874a5bc3ef00fd
[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" "36b21e21c6bcc0971b670b1af6035ef06116a0d9615e3227fe874a5bc3ef00fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling atsamd21j18a v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.50s
[INFO] running `Command { std: "docker" "inspect" "36b21e21c6bcc0971b670b1af6035ef06116a0d9615e3227fe874a5bc3ef00fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b21e21c6bcc0971b670b1af6035ef06116a0d9615e3227fe874a5bc3ef00fd", kill_on_drop: false }`
[INFO] [stdout] 36b21e21c6bcc0971b670b1af6035ef06116a0d9615e3227fe874a5bc3ef00fd