[INFO] fetching crate tetcore-std 2.1.2...
[INFO] checking tetcore-std-2.1.2 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate tetcore-std 2.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tetcore-std 2.1.2 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tetcore-std 2.1.2
[INFO] finished tweaking crates.io crate tetcore-std 2.1.2
[INFO] tweaked toml for crates.io crate tetcore-std 2.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b120e1a87fb89ad88b5d3b40d9dca6e136ff1c4a32c8f537fa8d47f874f070a1
[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" "b120e1a87fb89ad88b5d3b40d9dca6e136ff1c4a32c8f537fa8d47f874f070a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b120e1a87fb89ad88b5d3b40d9dca6e136ff1c4a32c8f537fa8d47f874f070a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b120e1a87fb89ad88b5d3b40d9dca6e136ff1c4a32c8f537fa8d47f874f070a1", kill_on_drop: false }`
[INFO] [stdout] b120e1a87fb89ad88b5d3b40d9dca6e136ff1c4a32c8f537fa8d47f874f070a1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bc8ab4c0575b7a3c64bd7d3c0cbb5261d366fcc48842773438a0110b9f0485c
[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" "6bc8ab4c0575b7a3c64bd7d3c0cbb5261d366fcc48842773438a0110b9f0485c", kill_on_drop: false }`
[INFO] [stderr]     Checking tetcore-std v2.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "6bc8ab4c0575b7a3c64bd7d3c0cbb5261d366fcc48842773438a0110b9f0485c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bc8ab4c0575b7a3c64bd7d3c0cbb5261d366fcc48842773438a0110b9f0485c", kill_on_drop: false }`
[INFO] [stdout] 6bc8ab4c0575b7a3c64bd7d3c0cbb5261d366fcc48842773438a0110b9f0485c