[INFO] fetching crate iref-enum 1.1.0...
[INFO] checking iref-enum-1.1.0 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate iref-enum 1.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate iref-enum 1.1.0 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iref-enum 1.1.0
[INFO] finished tweaking crates.io crate iref-enum 1.1.0
[INFO] tweaked toml for crates.io crate iref-enum 1.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate iref-enum 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfa2d40538d5c6335955a11d9ac8e192d630eddc7486a6cf5f7200bceffe3841
[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" "dfa2d40538d5c6335955a11d9ac8e192d630eddc7486a6cf5f7200bceffe3841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfa2d40538d5c6335955a11d9ac8e192d630eddc7486a6cf5f7200bceffe3841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa2d40538d5c6335955a11d9ac8e192d630eddc7486a6cf5f7200bceffe3841", kill_on_drop: false }`
[INFO] [stdout] dfa2d40538d5c6335955a11d9ac8e192d630eddc7486a6cf5f7200bceffe3841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] d6cf9a5183711943eb4591fe27913ade9e8894a32070f9a67192f2b29212b1c6
[INFO] running `Command { std: "docker" "start" "-a" "d6cf9a5183711943eb4591fe27913ade9e8894a32070f9a67192f2b29212b1c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]    Compiling pct-str v1.0.2
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]     Checking iref v1.1.5
[INFO] [stderr]    Compiling static-iref v1.0.0
[INFO] [stderr]     Checking quote v1.0.3
[INFO] [stderr]     Checking iref-enum v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.85s
[INFO] running `Command { std: "docker" "inspect" "d6cf9a5183711943eb4591fe27913ade9e8894a32070f9a67192f2b29212b1c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6cf9a5183711943eb4591fe27913ade9e8894a32070f9a67192f2b29212b1c6", kill_on_drop: false }`
[INFO] [stdout] d6cf9a5183711943eb4591fe27913ade9e8894a32070f9a67192f2b29212b1c6