[INFO] updating cached repository https://github.com/qq1197977022/learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b120db5a7a9db87333d3fe9d5e5b46ab0a9c51c4
[INFO] checking qq1197977022/learn_rust against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqq1197977022%2Flearn_rust" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qq1197977022/learn_rust on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qq1197977022/learn_rust
[INFO] finished tweaking git repo https://github.com/qq1197977022/learn_rust
[INFO] tweaked toml for git repo https://github.com/qq1197977022/learn_rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/qq1197977022/learn_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abe777e3ce42bf61dfcbcb081938938427a56965bbe8d850fcc271fc02b6fff2
[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" "abe777e3ce42bf61dfcbcb081938938427a56965bbe8d850fcc271fc02b6fff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abe777e3ce42bf61dfcbcb081938938427a56965bbe8d850fcc271fc02b6fff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abe777e3ce42bf61dfcbcb081938938427a56965bbe8d850fcc271fc02b6fff2", kill_on_drop: false }`
[INFO] [stdout] abe777e3ce42bf61dfcbcb081938938427a56965bbe8d850fcc271fc02b6fff2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8be56367667c0d1ca4a24eb47c80df3b9cca04ead2d296d9a83df6b21c87d2fd
[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" "8be56367667c0d1ca4a24eb47c80df3b9cca04ead2d296d9a83df6b21c87d2fd", kill_on_drop: false }`
[INFO] [stderr]     Checking learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "8be56367667c0d1ca4a24eb47c80df3b9cca04ead2d296d9a83df6b21c87d2fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be56367667c0d1ca4a24eb47c80df3b9cca04ead2d296d9a83df6b21c87d2fd", kill_on_drop: false }`
[INFO] [stdout] 8be56367667c0d1ca4a24eb47c80df3b9cca04ead2d296d9a83df6b21c87d2fd