[INFO] fetching crate merkle_sigs 1.7.0...
[INFO] testing merkle_sigs-1.7.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate merkle_sigs 1.7.0 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate merkle_sigs 1.7.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merkle_sigs 1.7.0
[INFO] finished tweaking crates.io crate merkle_sigs 1.7.0
[INFO] tweaked toml for crates.io crate merkle_sigs 1.7.0 written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protobuf-codegen v2.25.2
[INFO] [stderr]   Downloaded protoc v2.25.2
[INFO] [stderr]   Downloaded merkle v1.11.0
[INFO] [stderr]   Downloaded protoc-rust v2.25.2
[INFO] [stderr]   Downloaded lamport_sigs v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7468552f28ea6e1132880d5affe4b5cc9c1f15acbfe938e2ba9432c55362245
[INFO] running `Command { std: "docker" "start" "-a" "b7468552f28ea6e1132880d5affe4b5cc9c1f15acbfe938e2ba9432c55362245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7468552f28ea6e1132880d5affe4b5cc9c1f15acbfe938e2ba9432c55362245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7468552f28ea6e1132880d5affe4b5cc9c1f15acbfe938e2ba9432c55362245", kill_on_drop: false }`
[INFO] [stdout] b7468552f28ea6e1132880d5affe4b5cc9c1f15acbfe938e2ba9432c55362245
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3c999ca5cc99e73ddf7e8f3ca609b3a36ab77f6295d6adc6d0ee0c091b06aca
[INFO] running `Command { std: "docker" "start" "-a" "b3c999ca5cc99e73ddf7e8f3ca609b3a36ab77f6295d6adc6d0ee0c091b06aca", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling protobuf-codegen v2.25.2
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling protoc v2.25.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling protoc-rust v2.25.2
[INFO] [stderr]    Compiling merkle v1.11.0
[INFO] [stderr] error: failed to run custom build command for `merkle v1.11.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/merkle-a519e950c97454bd/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Build failed because merkle.rs could not find protobuf version 3.7.1
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b3c999ca5cc99e73ddf7e8f3ca609b3a36ab77f6295d6adc6d0ee0c091b06aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c999ca5cc99e73ddf7e8f3ca609b3a36ab77f6295d6adc6d0ee0c091b06aca", kill_on_drop: false }`
[INFO] [stdout] b3c999ca5cc99e73ddf7e8f3ca609b3a36ab77f6295d6adc6d0ee0c091b06aca