[INFO] fetching crate slab_tree 0.3.2...
[INFO] checking slab_tree-0.3.2 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate slab_tree 0.3.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate slab_tree 0.3.2 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slab_tree 0.3.2
[INFO] finished tweaking crates.io crate slab_tree 0.3.2
[INFO] tweaked toml for crates.io crate slab_tree 0.3.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate slab_tree 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snowflake v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25b898a7845e880f8ba3376b7fea19425c68ebd6db91649433a528d7619ca877
[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" "25b898a7845e880f8ba3376b7fea19425c68ebd6db91649433a528d7619ca877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25b898a7845e880f8ba3376b7fea19425c68ebd6db91649433a528d7619ca877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b898a7845e880f8ba3376b7fea19425c68ebd6db91649433a528d7619ca877", kill_on_drop: false }`
[INFO] [stdout] 25b898a7845e880f8ba3376b7fea19425c68ebd6db91649433a528d7619ca877
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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] c15ffa328ca87997f9ab5bccce69a51dd0d944001c62c229c5c794e386327f40
[INFO] running `Command { std: "docker" "start" "-a" "c15ffa328ca87997f9ab5bccce69a51dd0d944001c62c229c5c794e386327f40", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking slab_tree v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "c15ffa328ca87997f9ab5bccce69a51dd0d944001c62c229c5c794e386327f40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15ffa328ca87997f9ab5bccce69a51dd0d944001c62c229c5c794e386327f40", kill_on_drop: false }`
[INFO] [stdout] c15ffa328ca87997f9ab5bccce69a51dd0d944001c62c229c5c794e386327f40