[INFO] cloning repository https://github.com/conradludgate/rust-basics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/conradludgate/rust-basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Frust-basics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Frust-basics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c96e509cbc4e131237f4988555ba8889cc308ffb
[INFO] checking conradludgate/rust-basics against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Frust-basics" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/conradludgate/rust-basics on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/conradludgate/rust-basics
[INFO] finished tweaking git repo https://github.com/conradludgate/rust-basics
[INFO] tweaked toml for git repo https://github.com/conradludgate/rust-basics written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/conradludgate/rust-basics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2023dff6763d5d150ff4b1315bf2650fd3e8aa6051d703b6fa04bd4d405ce7d8
[INFO] running `Command { std: "docker" "start" "-a" "2023dff6763d5d150ff4b1315bf2650fd3e8aa6051d703b6fa04bd4d405ce7d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2023dff6763d5d150ff4b1315bf2650fd3e8aa6051d703b6fa04bd4d405ce7d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2023dff6763d5d150ff4b1315bf2650fd3e8aa6051d703b6fa04bd4d405ce7d8", kill_on_drop: false }`
[INFO] [stdout] 2023dff6763d5d150ff4b1315bf2650fd3e8aa6051d703b6fa04bd4d405ce7d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e46b9ab1d3f724f380a37099e7d2beab1650c20f3a95d5df1ba982a9bf98abd
[INFO] running `Command { std: "docker" "start" "-a" "9e46b9ab1d3f724f380a37099e7d2beab1650c20f3a95d5df1ba982a9bf98abd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking errors v0.1.0 (/opt/rustwide/workdir/08-errors)
[INFO] [stderr]     Checking control-flow v0.1.0 (/opt/rustwide/workdir/07-control-flow)
[INFO] [stderr]     Checking modules v0.1.0 (/opt/rustwide/workdir/09-modules)
[INFO] [stderr]     Checking hello-world v0.1.0 (/opt/rustwide/workdir/01-hello-world)
[INFO] [stderr]     Checking arrays v0.1.0 (/opt/rustwide/workdir/04-arrays)
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir/05-functions)
[INFO] [stderr]     Checking variables v0.1.0 (/opt/rustwide/workdir/02-variables)
[INFO] [stderr]     Checking iterators v0.1.0 (/opt/rustwide/workdir/12-iterators)
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir/03-strings)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/06-ownership)
[INFO] [stderr]     Checking types v0.1.0 (/opt/rustwide/workdir/10-types)
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/11-traits)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "9e46b9ab1d3f724f380a37099e7d2beab1650c20f3a95d5df1ba982a9bf98abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e46b9ab1d3f724f380a37099e7d2beab1650c20f3a95d5df1ba982a9bf98abd", kill_on_drop: false }`
[INFO] [stdout] 9e46b9ab1d3f724f380a37099e7d2beab1650c20f3a95d5df1ba982a9bf98abd