[INFO] crate no_proto 0.0.0-beta.3 is already in cache
[INFO] testing no_proto-0.0.0-beta.3 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate no_proto 0.0.0-beta.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate no_proto 0.0.0-beta.3 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate no_proto 0.0.0-beta.3
[INFO] finished tweaking crates.io crate no_proto 0.0.0-beta.3
[INFO] tweaked toml for crates.io crate no_proto 0.0.0-beta.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stdout] 4243c708a96bf2077b0096872b6257ba52a1bec1bc5ec41decb664c1f4bfa67f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4243c708a96bf2077b0096872b6257ba52a1bec1bc5ec41decb664c1f4bfa67f"`
[INFO] [stderr]    Compiling no_proto v0.0.0-beta.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.53s
[INFO] running `"docker" "inspect" "4243c708a96bf2077b0096872b6257ba52a1bec1bc5ec41decb664c1f4bfa67f"`
[INFO] running `"docker" "rm" "-f" "4243c708a96bf2077b0096872b6257ba52a1bec1bc5ec41decb664c1f4bfa67f"`
[INFO] [stdout] 4243c708a96bf2077b0096872b6257ba52a1bec1bc5ec41decb664c1f4bfa67f
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a1abadb83c1f80f0e164d2415edd4fbf57c56c5f7f03dbc44c52e25a35b43c31
[INFO] running `"docker" "start" "-a" "a1abadb83c1f80f0e164d2415edd4fbf57c56c5f7f03dbc44c52e25a35b43c31"`
[INFO] [stderr]    Compiling no_proto v0.0.0-beta.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "a1abadb83c1f80f0e164d2415edd4fbf57c56c5f7f03dbc44c52e25a35b43c31"`
[INFO] running `"docker" "rm" "-f" "a1abadb83c1f80f0e164d2415edd4fbf57c56c5f7f03dbc44c52e25a35b43c31"`
[INFO] [stdout] a1abadb83c1f80f0e164d2415edd4fbf57c56c5f7f03dbc44c52e25a35b43c31
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 981f928e231263986591ae750b7654b4e0f055df40a675ab18a833070316103b
[INFO] running `"docker" "start" "-a" "981f928e231263986591ae750b7654b4e0f055df40a675ab18a833070316103b"`
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/no_proto-d162b2a0e54af92e
[INFO] [stderr]    Doc-tests no_proto
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - NP_Factory (line 182) ... ok
[INFO] [stdout] test src/lib.rs -  (line 57) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "981f928e231263986591ae750b7654b4e0f055df40a675ab18a833070316103b"`
[INFO] running `"docker" "rm" "-f" "981f928e231263986591ae750b7654b4e0f055df40a675ab18a833070316103b"`
[INFO] [stdout] 981f928e231263986591ae750b7654b4e0f055df40a675ab18a833070316103b