[INFO] fetching crate libp2p-pubsub-proto 0.1.0...
[INFO] checking libp2p-pubsub-proto-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate libp2p-pubsub-proto 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate libp2p-pubsub-proto 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-pubsub-proto 0.1.0
[INFO] finished tweaking crates.io crate libp2p-pubsub-proto 0.1.0
[INFO] tweaked toml for crates.io crate libp2p-pubsub-proto 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a435281235abb9a84cd3aa26bcd8096d2134db42e0cf8faa95767f36b98aa49d
[INFO] running `Command { std: "docker" "start" "-a" "a435281235abb9a84cd3aa26bcd8096d2134db42e0cf8faa95767f36b98aa49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a435281235abb9a84cd3aa26bcd8096d2134db42e0cf8faa95767f36b98aa49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a435281235abb9a84cd3aa26bcd8096d2134db42e0cf8faa95767f36b98aa49d", kill_on_drop: false }`
[INFO] [stdout] a435281235abb9a84cd3aa26bcd8096d2134db42e0cf8faa95767f36b98aa49d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 400872cca9389e931d8c22db6041f201b37c0eb5095decbe6a874381911c7ab6
[INFO] running `Command { std: "docker" "start" "-a" "400872cca9389e931d8c22db6041f201b37c0eb5095decbe6a874381911c7ab6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling libp2p-pubsub-proto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling prost-derive v0.12.4
[INFO] [stderr]     Checking prost v0.12.4
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.82s
[INFO] running `Command { std: "docker" "inspect" "400872cca9389e931d8c22db6041f201b37c0eb5095decbe6a874381911c7ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "400872cca9389e931d8c22db6041f201b37c0eb5095decbe6a874381911c7ab6", kill_on_drop: false }`
[INFO] [stdout] 400872cca9389e931d8c22db6041f201b37c0eb5095decbe6a874381911c7ab6
[INFO] checking libp2p-pubsub-proto-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate libp2p-pubsub-proto 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate libp2p-pubsub-proto 0.1.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-pubsub-proto 0.1.0
[INFO] finished tweaking crates.io crate libp2p-pubsub-proto 0.1.0
[INFO] tweaked toml for crates.io crate libp2p-pubsub-proto 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d66199c89938a23106b0b63c3799c3946f1797d458bd813cad63b2318c319c33
[INFO] running `Command { std: "docker" "start" "-a" "d66199c89938a23106b0b63c3799c3946f1797d458bd813cad63b2318c319c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d66199c89938a23106b0b63c3799c3946f1797d458bd813cad63b2318c319c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d66199c89938a23106b0b63c3799c3946f1797d458bd813cad63b2318c319c33", kill_on_drop: false }`
[INFO] [stdout] d66199c89938a23106b0b63c3799c3946f1797d458bd813cad63b2318c319c33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac9d94320b0de03f144ddd0f553ffd3aa0a3f900c4a6014ff14450652814398a
[INFO] running `Command { std: "docker" "start" "-a" "ac9d94320b0de03f144ddd0f553ffd3aa0a3f900c4a6014ff14450652814398a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]    Compiling libp2p-pubsub-proto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling prost-derive v0.12.4
[INFO] [stderr]     Checking prost v0.12.4
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.19s
[INFO] running `Command { std: "docker" "inspect" "ac9d94320b0de03f144ddd0f553ffd3aa0a3f900c4a6014ff14450652814398a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac9d94320b0de03f144ddd0f553ffd3aa0a3f900c4a6014ff14450652814398a", kill_on_drop: false }`
[INFO] [stdout] ac9d94320b0de03f144ddd0f553ffd3aa0a3f900c4a6014ff14450652814398a