[INFO] crate chewy 2.0.0 is already in cache
[INFO] testing chewy-2.0.0 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate chewy 2.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate chewy 2.0.0 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate chewy 2.0.0
[INFO] finished tweaking crates.io crate chewy 2.0.0
[INFO] tweaked toml for crates.io crate chewy 2.0.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 48a8576d3c0599aae087daa278e4b82e393fa599bc64f5bff531365ea61fb478
[INFO] running `"docker" "start" "-a" "48a8576d3c0599aae087daa278e4b82e393fa599bc64f5bff531365ea61fb478"`
[INFO] [stderr]    Compiling chewy v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]   --> src/main.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn execute1(stack: &mut Vec<i128>, op: String, b: i128) {
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[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 1.15s
[INFO] running `"docker" "inspect" "48a8576d3c0599aae087daa278e4b82e393fa599bc64f5bff531365ea61fb478"`
[INFO] running `"docker" "rm" "-f" "48a8576d3c0599aae087daa278e4b82e393fa599bc64f5bff531365ea61fb478"`
[INFO] [stdout] 48a8576d3c0599aae087daa278e4b82e393fa599bc64f5bff531365ea61fb478
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 85e7665b3391185607a6e9fec869d2b6f9f8cdc5d84a4b166b576beb73ab586b
[INFO] running `"docker" "start" "-a" "85e7665b3391185607a6e9fec869d2b6f9f8cdc5d84a4b166b576beb73ab586b"`
[INFO] [stderr]    Compiling chewy v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]   --> src/main.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn execute1(stack: &mut Vec<i128>, op: String, b: i128) {
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[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 0.86s
[INFO] running `"docker" "inspect" "85e7665b3391185607a6e9fec869d2b6f9f8cdc5d84a4b166b576beb73ab586b"`
[INFO] running `"docker" "rm" "-f" "85e7665b3391185607a6e9fec869d2b6f9f8cdc5d84a4b166b576beb73ab586b"`
[INFO] [stdout] 85e7665b3391185607a6e9fec869d2b6f9f8cdc5d84a4b166b576beb73ab586b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] bf7f201949440666e1a9a8618467eca62ed953708b6658fb4375b824c55f3c83
[INFO] running `"docker" "start" "-a" "bf7f201949440666e1a9a8618467eca62ed953708b6658fb4375b824c55f3c83"`
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]   --> src/main.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn execute1(stack: &mut Vec<i128>, op: String, b: i128) {
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[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 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chewy-fa911ef626c393bf
[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] running `"docker" "inspect" "bf7f201949440666e1a9a8618467eca62ed953708b6658fb4375b824c55f3c83"`
[INFO] running `"docker" "rm" "-f" "bf7f201949440666e1a9a8618467eca62ed953708b6658fb4375b824c55f3c83"`
[INFO] [stdout] bf7f201949440666e1a9a8618467eca62ed953708b6658fb4375b824c55f3c83