[INFO] fetching crate stringify-attr 1.0.0...
[INFO] checking stringify-attr-1.0.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate stringify-attr 1.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate stringify-attr 1.0.0 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 stringify-attr 1.0.0
[INFO] finished tweaking crates.io crate stringify-attr 1.0.0
[INFO] tweaked toml for crates.io crate stringify-attr 1.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate stringify-attr 1.0.0 already has a lockfile, it will not be regenerated
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c0c32214ca3d656f85d35be04aa81f53bb25ca4fd6256acbe18e492c4c3bfc2
[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" "1c0c32214ca3d656f85d35be04aa81f53bb25ca4fd6256acbe18e492c4c3bfc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c0c32214ca3d656f85d35be04aa81f53bb25ca4fd6256acbe18e492c4c3bfc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c0c32214ca3d656f85d35be04aa81f53bb25ca4fd6256acbe18e492c4c3bfc2", kill_on_drop: false }`
[INFO] [stdout] 1c0c32214ca3d656f85d35be04aa81f53bb25ca4fd6256acbe18e492c4c3bfc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05ec3f737877e6749a42de1c6f42d02638a38b393fc36577ad7c2c699a5dc81a
[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" "05ec3f737877e6749a42de1c6f42d02638a38b393fc36577ad7c2c699a5dc81a", kill_on_drop: false }`
[INFO] [stderr]     Checking proc-macro2 v1.0.9
[INFO] [stderr]     Checking quote v1.0.3
[INFO] [stderr]     Checking stringify-attr v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "05ec3f737877e6749a42de1c6f42d02638a38b393fc36577ad7c2c699a5dc81a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ec3f737877e6749a42de1c6f42d02638a38b393fc36577ad7c2c699a5dc81a", kill_on_drop: false }`
[INFO] [stdout] 05ec3f737877e6749a42de1c6f42d02638a38b393fc36577ad7c2c699a5dc81a