[INFO] cloning repository https://github.com/PtNan/blog_os_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PtNan/blog_os_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPtNan%2Fblog_os_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPtNan%2Fblog_os_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfe1fef26e0c3833c74ac94f5f46e9024f2680d9
[INFO] checking PtNan/blog_os_learning against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPtNan%2Fblog_os_learning" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PtNan/blog_os_learning on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PtNan/blog_os_learning
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/PtNan/blog_os_learning
[INFO] tweaked toml for git repo https://github.com/PtNan/blog_os_learning written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/PtNan/blog_os_learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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] 970d80b3234b8de1f63b86dc9e65f178ca68697d9d2ac5eff75d8d28a700974c
[INFO] running `Command { std: "docker" "start" "-a" "970d80b3234b8de1f63b86dc9e65f178ca68697d9d2ac5eff75d8d28a700974c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "970d80b3234b8de1f63b86dc9e65f178ca68697d9d2ac5eff75d8d28a700974c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970d80b3234b8de1f63b86dc9e65f178ca68697d9d2ac5eff75d8d28a700974c", kill_on_drop: false }`
[INFO] [stdout] 970d80b3234b8de1f63b86dc9e65f178ca68697d9d2ac5eff75d8d28a700974c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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] 48613d8e887002e4d0d9380ae59d744785955b8166ba058b103fdbac73259d4b
[INFO] running `Command { std: "docker" "start" "-a" "48613d8e887002e4d0d9380ae59d744785955b8166ba058b103fdbac73259d4b", kill_on_drop: false }`
[INFO] [stderr] error: "/opt/rustwide/rustup-home/toolchains/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/lib/rustlib/src/rust/Cargo.lock" does not exist, unable to build with the standard library, try:
[INFO] [stderr]         rustup component add rust-src
[INFO] running `Command { std: "docker" "inspect" "48613d8e887002e4d0d9380ae59d744785955b8166ba058b103fdbac73259d4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48613d8e887002e4d0d9380ae59d744785955b8166ba058b103fdbac73259d4b", kill_on_drop: false }`
[INFO] [stdout] 48613d8e887002e4d0d9380ae59d744785955b8166ba058b103fdbac73259d4b