[INFO] fetching crate rgb 0.8.19-rc...
[INFO] checking rgb-0.8.19-rc against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] extracting crate rgb 0.8.19-rc into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rgb 0.8.19-rc on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rgb 0.8.19-rc
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rgb 0.8.19-rc
[INFO] tweaked toml for crates.io crate rgb 0.8.19-rc written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate rgb 0.8.19-rc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecc376ce5381388eeae17c4688ee2cea76385385b73e2038a23f209badd81f8e
[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" "ecc376ce5381388eeae17c4688ee2cea76385385b73e2038a23f209badd81f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecc376ce5381388eeae17c4688ee2cea76385385b73e2038a23f209badd81f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc376ce5381388eeae17c4688ee2cea76385385b73e2038a23f209badd81f8e", kill_on_drop: false }`
[INFO] [stdout] ecc376ce5381388eeae17c4688ee2cea76385385b73e2038a23f209badd81f8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b61a859449717b34b3b100abdd4b67b641e920109f442d453865ed1d68691a33
[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" "b61a859449717b34b3b100abdd4b67b641e920109f442d453865ed1d68691a33", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking rgb v0.8.19-rc (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.86s
[INFO] running `Command { std: "docker" "inspect" "b61a859449717b34b3b100abdd4b67b641e920109f442d453865ed1d68691a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61a859449717b34b3b100abdd4b67b641e920109f442d453865ed1d68691a33", kill_on_drop: false }`
[INFO] [stdout] b61a859449717b34b3b100abdd4b67b641e920109f442d453865ed1d68691a33