[INFO] cloning repository https://github.com/adamtysonsmith/rust_variables
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamtysonsmith/rust_variables" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamtysonsmith%2Frust_variables", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamtysonsmith%2Frust_variables'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 472f7c4452a7dad212525681cdba7eded848495a
[INFO] checking adamtysonsmith/rust_variables against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamtysonsmith%2Frust_variables" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamtysonsmith/rust_variables on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adamtysonsmith/rust_variables
[INFO] finished tweaking git repo https://github.com/adamtysonsmith/rust_variables
[INFO] tweaked toml for git repo https://github.com/adamtysonsmith/rust_variables written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/adamtysonsmith/rust_variables already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbb664bd89b7d2e8cf6cccb65054dc7ad0e76e908fea6d0449e838c69af6de6a
[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" "cbb664bd89b7d2e8cf6cccb65054dc7ad0e76e908fea6d0449e838c69af6de6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbb664bd89b7d2e8cf6cccb65054dc7ad0e76e908fea6d0449e838c69af6de6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb664bd89b7d2e8cf6cccb65054dc7ad0e76e908fea6d0449e838c69af6de6a", kill_on_drop: false }`
[INFO] [stdout] cbb664bd89b7d2e8cf6cccb65054dc7ad0e76e908fea6d0449e838c69af6de6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76b402efdc3c625db345a0b0e6e31b9cb61be4b95f759baa43b01de7e6f9013a
[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" "76b402efdc3c625db345a0b0e6e31b9cb61be4b95f759baa43b01de7e6f9013a", kill_on_drop: false }`
[INFO] [stderr]     Checking hello_rust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "76b402efdc3c625db345a0b0e6e31b9cb61be4b95f759baa43b01de7e6f9013a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b402efdc3c625db345a0b0e6e31b9cb61be4b95f759baa43b01de7e6f9013a", kill_on_drop: false }`
[INFO] [stdout] 76b402efdc3c625db345a0b0e6e31b9cb61be4b95f759baa43b01de7e6f9013a