[INFO] fetching crate identify-tts 0.1.0...
[INFO] checking identify-tts-0.1.0 against beta for pr-78714
[INFO] extracting crate identify-tts 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate identify-tts 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate identify-tts 0.1.0
[INFO] finished tweaking crates.io crate identify-tts 0.1.0
[INFO] tweaked toml for crates.io crate identify-tts 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f76f41dfc17c05a98c2e8f7d502d11c6ed84ef46b39cd229b014f6e7ccf3b3c
[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" "8f76f41dfc17c05a98c2e8f7d502d11c6ed84ef46b39cd229b014f6e7ccf3b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f76f41dfc17c05a98c2e8f7d502d11c6ed84ef46b39cd229b014f6e7ccf3b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f76f41dfc17c05a98c2e8f7d502d11c6ed84ef46b39cd229b014f6e7ccf3b3c", kill_on_drop: false }`
[INFO] [stdout] 8f76f41dfc17c05a98c2e8f7d502d11c6ed84ef46b39cd229b014f6e7ccf3b3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b31a17e9037da44f97ca420f279c997fa60ed39be97680ed2ed647b6e945643b
[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" "b31a17e9037da44f97ca420f279c997fa60ed39be97680ed2ed647b6e945643b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking syn v1.0.48
[INFO] [stderr]     Checking identify-tts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.35s
[INFO] running `Command { std: "docker" "inspect" "b31a17e9037da44f97ca420f279c997fa60ed39be97680ed2ed647b6e945643b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31a17e9037da44f97ca420f279c997fa60ed39be97680ed2ed647b6e945643b", kill_on_drop: false }`
[INFO] [stdout] b31a17e9037da44f97ca420f279c997fa60ed39be97680ed2ed647b6e945643b