[INFO] fetching crate nomino 0.4.6...
[INFO] checking nomino-0.4.6 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate nomino 0.4.6 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate nomino 0.4.6 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nomino 0.4.6
[INFO] finished tweaking crates.io crate nomino 0.4.6
[INFO] tweaked toml for crates.io crate nomino 0.4.6 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate nomino 0.4.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7496d5a48f50e4bfbfe99e59c27712d255ef42564ed8e0e0f3813f74c4b79cbc
[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" "7496d5a48f50e4bfbfe99e59c27712d255ef42564ed8e0e0f3813f74c4b79cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7496d5a48f50e4bfbfe99e59c27712d255ef42564ed8e0e0f3813f74c4b79cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7496d5a48f50e4bfbfe99e59c27712d255ef42564ed8e0e0f3813f74c4b79cbc", kill_on_drop: false }`
[INFO] [stdout] 7496d5a48f50e4bfbfe99e59c27712d255ef42564ed8e0e0f3813f74c4b79cbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50981a9125f810791d670b61c104d4246dd52947d6afb48621896889aba0cbd7
[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" "50981a9125f810791d670b61c104d4246dd52947d6afb48621896889aba0cbd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking once_cell v1.6.0
[INFO] [stderr]    Compiling nomino v0.4.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr] error: failed to run custom build command for `nomino v0.4.6 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nomino-dad91dad2d831b1a/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "50981a9125f810791d670b61c104d4246dd52947d6afb48621896889aba0cbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50981a9125f810791d670b61c104d4246dd52947d6afb48621896889aba0cbd7", kill_on_drop: false }`
[INFO] [stdout] 50981a9125f810791d670b61c104d4246dd52947d6afb48621896889aba0cbd7