[INFO] fetching crate ubuntu-version 0.2.2...
[INFO] checking ubuntu-version-0.2.2 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate ubuntu-version 0.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ubuntu-version 0.2.2 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ubuntu-version 0.2.2
[INFO] finished tweaking crates.io crate ubuntu-version 0.2.2
[INFO] tweaked toml for crates.io crate ubuntu-version 0.2.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate ubuntu-version 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfd66d41231d01ba8b3ec0fd1808fe8488dd15375fe119e0ff59dab571250754
[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" "dfd66d41231d01ba8b3ec0fd1808fe8488dd15375fe119e0ff59dab571250754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfd66d41231d01ba8b3ec0fd1808fe8488dd15375fe119e0ff59dab571250754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfd66d41231d01ba8b3ec0fd1808fe8488dd15375fe119e0ff59dab571250754", kill_on_drop: false }`
[INFO] [stdout] dfd66d41231d01ba8b3ec0fd1808fe8488dd15375fe119e0ff59dab571250754
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 40e2b2ce3a4c2cf243726a7daa373e474d921a776b23d9eaadaa5e03cc9e3bc9
[INFO] running `Command { std: "docker" "start" "-a" "40e2b2ce3a4c2cf243726a7daa373e474d921a776b23d9eaadaa5e03cc9e3bc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking os-release v0.1.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking ubuntu-version v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.26s
[INFO] running `Command { std: "docker" "inspect" "40e2b2ce3a4c2cf243726a7daa373e474d921a776b23d9eaadaa5e03cc9e3bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40e2b2ce3a4c2cf243726a7daa373e474d921a776b23d9eaadaa5e03cc9e3bc9", kill_on_drop: false }`
[INFO] [stdout] 40e2b2ce3a4c2cf243726a7daa373e474d921a776b23d9eaadaa5e03cc9e3bc9