[INFO] fetching crate twiggy-ir 0.6.0...
[INFO] checking twiggy-ir-0.6.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate twiggy-ir 0.6.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate twiggy-ir 0.6.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twiggy-ir 0.6.0
[INFO] finished tweaking crates.io crate twiggy-ir 0.6.0
[INFO] tweaked toml for crates.io crate twiggy-ir 0.6.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89822cc5744f54d70750bde95ee9559d67ec8bf9c2fb7664968c158037f624a8
[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" "89822cc5744f54d70750bde95ee9559d67ec8bf9c2fb7664968c158037f624a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89822cc5744f54d70750bde95ee9559d67ec8bf9c2fb7664968c158037f624a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89822cc5744f54d70750bde95ee9559d67ec8bf9c2fb7664968c158037f624a8", kill_on_drop: false }`
[INFO] [stdout] 89822cc5744f54d70750bde95ee9559d67ec8bf9c2fb7664968c158037f624a8
[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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5419946ff5df1c50458c2d39307dde4c568b32bef033565ab7cdcad4070ee539
[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" "5419946ff5df1c50458c2d39307dde4c568b32bef033565ab7cdcad4070ee539", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking frozen v1.0.0
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]    Compiling cpp_demangle v0.2.16
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking twiggy-ir v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.89s
[INFO] running `Command { std: "docker" "inspect" "5419946ff5df1c50458c2d39307dde4c568b32bef033565ab7cdcad4070ee539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5419946ff5df1c50458c2d39307dde4c568b32bef033565ab7cdcad4070ee539", kill_on_drop: false }`
[INFO] [stdout] 5419946ff5df1c50458c2d39307dde4c568b32bef033565ab7cdcad4070ee539