[INFO] fetching crate prost-amino 0.6.0...
[INFO] checking prost-amino-0.6.0 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate prost-amino 0.6.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate prost-amino 0.6.0 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prost-amino 0.6.0
[INFO] finished tweaking crates.io crate prost-amino 0.6.0
[INFO] tweaked toml for crates.io crate prost-amino 0.6.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a85fca08f3a9ec4647d4c11636b99e78c1dbe2b58ef69219dcd3fa5e12fe7b7
[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" "6a85fca08f3a9ec4647d4c11636b99e78c1dbe2b58ef69219dcd3fa5e12fe7b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a85fca08f3a9ec4647d4c11636b99e78c1dbe2b58ef69219dcd3fa5e12fe7b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a85fca08f3a9ec4647d4c11636b99e78c1dbe2b58ef69219dcd3fa5e12fe7b7", kill_on_drop: false }`
[INFO] [stdout] 6a85fca08f3a9ec4647d4c11636b99e78c1dbe2b58ef69219dcd3fa5e12fe7b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17b0f8289aa4e957605eab6ec96051ef992a325f1d24a2f2a8d433b31801aebb
[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" "17b0f8289aa4e957605eab6ec96051ef992a325f1d24a2f2a8d433b31801aebb", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling object v0.20.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking prost-amino v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]    Compiling prost-amino-derive v0.6.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.56s
[INFO] running `Command { std: "docker" "inspect" "17b0f8289aa4e957605eab6ec96051ef992a325f1d24a2f2a8d433b31801aebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b0f8289aa4e957605eab6ec96051ef992a325f1d24a2f2a8d433b31801aebb", kill_on_drop: false }`
[INFO] [stdout] 17b0f8289aa4e957605eab6ec96051ef992a325f1d24a2f2a8d433b31801aebb