[INFO] cloning repository https://github.com/blue-emc2/cave
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blue-emc2/cave" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblue-emc2%2Fcave", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblue-emc2%2Fcave'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff4f1a6998da03e9067f304cf4871275a30adf9c
[INFO] checking blue-emc2/cave against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblue-emc2%2Fcave" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blue-emc2/cave on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blue-emc2/cave
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/blue-emc2/cave
[INFO] tweaked toml for git repo https://github.com/blue-emc2/cave written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/blue-emc2/cave already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derivative v1.0.4
[INFO] [stderr]   Downloaded nonzero_signed v1.0.3
[INFO] [stderr]   Downloaded crossbeam-channel v0.2.6
[INFO] [stderr]   Downloaded crossbeam-epoch v0.5.2
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded owning_ref v0.4.1
[INFO] [stderr]   Downloaded crossbeam-deque v0.5.2
[INFO] [stderr]   Downloaded parking_lot v0.6.4
[INFO] [stderr]   Downloaded crossbeam v0.4.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.5.0
[INFO] [stderr]   Downloaded shred v0.7.2
[INFO] [stderr]   Downloaded specs v0.14.3
[INFO] [stderr]   Downloaded shred-derive v0.5.1
[INFO] [stderr]   Downloaded tuple_utils v0.2.0
[INFO] [stderr]   Downloaded sdl2 v0.34.2
[INFO] [stderr]   Downloaded sdl2-sys v0.34.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.6.1
[INFO] [stderr]   Downloaded syn v1.0.36
[INFO] [stderr]   Downloaded hibitset v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caf66671bd1256e74db3206e5204491d6fcb30a287b16b1e631102e58eabdb21
[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" "caf66671bd1256e74db3206e5204491d6fcb30a287b16b1e631102e58eabdb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caf66671bd1256e74db3206e5204491d6fcb30a287b16b1e631102e58eabdb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caf66671bd1256e74db3206e5204491d6fcb30a287b16b1e631102e58eabdb21", kill_on_drop: false }`
[INFO] [stdout] caf66671bd1256e74db3206e5204491d6fcb30a287b16b1e631102e58eabdb21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f49a3fa54fd189276cf0cfab6f028d51be3e57b35f02dec2e9ae9c716212765
[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" "1f49a3fa54fd189276cf0cfab6f028d51be3e57b35f02dec2e9ae9c716212765", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling sdl2 v0.34.2
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling sdl2-sys v0.34.2
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking hibitset v0.5.4
[INFO] [stderr]     Checking shred v0.7.2
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling shred-derive v0.5.1
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]     Checking specs v0.14.3
[INFO] [stderr]     Checking cave v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.92s
[INFO] running `Command { std: "docker" "inspect" "1f49a3fa54fd189276cf0cfab6f028d51be3e57b35f02dec2e9ae9c716212765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f49a3fa54fd189276cf0cfab6f028d51be3e57b35f02dec2e9ae9c716212765", kill_on_drop: false }`
[INFO] [stdout] 1f49a3fa54fd189276cf0cfab6f028d51be3e57b35f02dec2e9ae9c716212765