[INFO] fetching crate ring-digest 0.1.0...
[INFO] checking ring-digest-0.1.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate ring-digest 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ring-digest 0.1.0 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 ring-digest 0.1.0
[INFO] finished tweaking crates.io crate ring-digest 0.1.0
[INFO] tweaked toml for crates.io crate ring-digest 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", 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] a2cc52126bb5af322f9874693bc31d77e4b72d28597cbee27ccc5977d017f240
[INFO] running `Command { std: "docker" "start" "-a" "a2cc52126bb5af322f9874693bc31d77e4b72d28597cbee27ccc5977d017f240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2cc52126bb5af322f9874693bc31d77e4b72d28597cbee27ccc5977d017f240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2cc52126bb5af322f9874693bc31d77e4b72d28597cbee27ccc5977d017f240", kill_on_drop: false }`
[INFO] [stdout] a2cc52126bb5af322f9874693bc31d77e4b72d28597cbee27ccc5977d017f240
[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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] 6e3afbcf2741ce19eb4ef34f2fce62d637c0391498f787d0fb6e6c0446a3615c
[INFO] running `Command { std: "docker" "start" "-a" "6e3afbcf2741ce19eb4ef34f2fce62d637c0391498f787d0fb6e6c0446a3615c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking blobby v0.1.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking ring-digest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.97s
[INFO] running `Command { std: "docker" "inspect" "6e3afbcf2741ce19eb4ef34f2fce62d637c0391498f787d0fb6e6c0446a3615c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e3afbcf2741ce19eb4ef34f2fce62d637c0391498f787d0fb6e6c0446a3615c", kill_on_drop: false }`
[INFO] [stdout] 6e3afbcf2741ce19eb4ef34f2fce62d637c0391498f787d0fb6e6c0446a3615c