[INFO] cloning repository https://github.com/ImprobabilityCast/rbtree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ImprobabilityCast/rbtree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImprobabilityCast%2Frbtree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImprobabilityCast%2Frbtree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad2e801c674a760729f052054e472ab6cbae1075
[INFO] checking ImprobabilityCast/rbtree against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImprobabilityCast%2Frbtree" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ImprobabilityCast/rbtree on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ImprobabilityCast/rbtree
[INFO] finished tweaking git repo https://github.com/ImprobabilityCast/rbtree
[INFO] tweaked toml for git repo https://github.com/ImprobabilityCast/rbtree written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ImprobabilityCast/rbtree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 2c2f03d6ac336d3a534088fea05dc330c5cb9ac64af9cc4fb189308cb6c62381
[INFO] running `Command { std: "docker" "start" "-a" "2c2f03d6ac336d3a534088fea05dc330c5cb9ac64af9cc4fb189308cb6c62381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c2f03d6ac336d3a534088fea05dc330c5cb9ac64af9cc4fb189308cb6c62381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c2f03d6ac336d3a534088fea05dc330c5cb9ac64af9cc4fb189308cb6c62381", kill_on_drop: false }`
[INFO] [stdout] 2c2f03d6ac336d3a534088fea05dc330c5cb9ac64af9cc4fb189308cb6c62381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 340eabf3dd70874848cc854fa4edd9ca01d66734f9f5ce7f54f6142b5b144efd
[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" "340eabf3dd70874848cc854fa4edd9ca01d66734f9f5ce7f54f6142b5b144efd", kill_on_drop: false }`
[INFO] [stderr]     Checking rbtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "340eabf3dd70874848cc854fa4edd9ca01d66734f9f5ce7f54f6142b5b144efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "340eabf3dd70874848cc854fa4edd9ca01d66734f9f5ce7f54f6142b5b144efd", kill_on_drop: false }`
[INFO] [stdout] 340eabf3dd70874848cc854fa4edd9ca01d66734f9f5ce7f54f6142b5b144efd