[INFO] fetching crate mapgen 0.4.2...
[INFO] checking mapgen-0.4.2 against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] extracting crate mapgen 0.4.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mapgen 0.4.2 on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mapgen 0.4.2
[INFO] finished tweaking crates.io crate mapgen 0.4.2
[INFO] tweaked toml for crates.io crate mapgen 0.4.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate mapgen 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1bc009e8e3105b90b0bd59854993e829f378b14d61516c3b1f55f16263c1726
[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" "d1bc009e8e3105b90b0bd59854993e829f378b14d61516c3b1f55f16263c1726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1bc009e8e3105b90b0bd59854993e829f378b14d61516c3b1f55f16263c1726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1bc009e8e3105b90b0bd59854993e829f378b14d61516c3b1f55f16263c1726", kill_on_drop: false }`
[INFO] [stdout] d1bc009e8e3105b90b0bd59854993e829f378b14d61516c3b1f55f16263c1726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "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] adc691f1e434e328455be87077f53e3434d2d350a964e5e7509e27ff00fea6a1
[INFO] running `Command { std: "docker" "start" "-a" "adc691f1e434e328455be87077f53e3434d2d350a964e5e7509e27ff00fea6a1", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking getrandom v0.2.1
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking mapgen v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.20s
[INFO] running `Command { std: "docker" "inspect" "adc691f1e434e328455be87077f53e3434d2d350a964e5e7509e27ff00fea6a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adc691f1e434e328455be87077f53e3434d2d350a964e5e7509e27ff00fea6a1", kill_on_drop: false }`
[INFO] [stdout] adc691f1e434e328455be87077f53e3434d2d350a964e5e7509e27ff00fea6a1