[INFO] fetching crate synapse-rpc 0.1.20...
[INFO] checking synapse-rpc-0.1.20 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate synapse-rpc 0.1.20 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate synapse-rpc 0.1.20 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synapse-rpc 0.1.20
[INFO] finished tweaking crates.io crate synapse-rpc 0.1.20
[INFO] tweaked toml for crates.io crate synapse-rpc 0.1.20 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1338bff5bf634842e8daef10ed943b736d7d4cad3f44321de42de7b77370041a
[INFO] running `Command { std: "docker" "start" "-a" "1338bff5bf634842e8daef10ed943b736d7d4cad3f44321de42de7b77370041a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1338bff5bf634842e8daef10ed943b736d7d4cad3f44321de42de7b77370041a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1338bff5bf634842e8daef10ed943b736d7d4cad3f44321de42de7b77370041a", kill_on_drop: false }`
[INFO] [stdout] 1338bff5bf634842e8daef10ed943b736d7d4cad3f44321de42de7b77370041a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed80416cdf607b60f25cb55138b495487e66ee648a5d5e2bdbfafe48c8f3f9dd
[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" "ed80416cdf607b60f25cb55138b495487e66ee648a5d5e2bdbfafe48c8f3f9dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking synapse-rpc v0.1.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.50s
[INFO] running `Command { std: "docker" "inspect" "ed80416cdf607b60f25cb55138b495487e66ee648a5d5e2bdbfafe48c8f3f9dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed80416cdf607b60f25cb55138b495487e66ee648a5d5e2bdbfafe48c8f3f9dd", kill_on_drop: false }`
[INFO] [stdout] ed80416cdf607b60f25cb55138b495487e66ee648a5d5e2bdbfafe48c8f3f9dd