[INFO] cloning repository https://github.com/duckinator/chewy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duckinator/chewy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduckinator%2Fchewy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduckinator%2Fchewy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33bf85de6c360500aac0144c6d6fa07fd115b620
[INFO] testing duckinator/chewy against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduckinator%2Fchewy" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/duckinator/chewy on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/duckinator/chewy
[INFO] finished tweaking git repo https://github.com/duckinator/chewy
[INFO] tweaked toml for git repo https://github.com/duckinator/chewy written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/duckinator/chewy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 1143f68ad1bc5d61e5a4ba308e72a822fc9e23292534bd7e73bb7fd9566bf3f8
[INFO] running `Command { std: "docker" "start" "-a" "1143f68ad1bc5d61e5a4ba308e72a822fc9e23292534bd7e73bb7fd9566bf3f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1143f68ad1bc5d61e5a4ba308e72a822fc9e23292534bd7e73bb7fd9566bf3f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1143f68ad1bc5d61e5a4ba308e72a822fc9e23292534bd7e73bb7fd9566bf3f8", kill_on_drop: false }`
[INFO] [stdout] 1143f68ad1bc5d61e5a4ba308e72a822fc9e23292534bd7e73bb7fd9566bf3f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", 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] d544aab4d2d718b578e64e4c0ece59b666ca2c2123ed2c70de6e60b071057e33
[INFO] running `Command { std: "docker" "start" "-a" "d544aab4d2d718b578e64e4c0ece59b666ca2c2123ed2c70de6e60b071057e33", kill_on_drop: false }`
[INFO] [stderr]    Compiling chewy v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]   --> src/main.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn execute1(stack: &mut Vec<i128>, op: String, b: i128) {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "d544aab4d2d718b578e64e4c0ece59b666ca2c2123ed2c70de6e60b071057e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d544aab4d2d718b578e64e4c0ece59b666ca2c2123ed2c70de6e60b071057e33", kill_on_drop: false }`
[INFO] [stdout] d544aab4d2d718b578e64e4c0ece59b666ca2c2123ed2c70de6e60b071057e33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", 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] c7db293c2b3e5be365f59bcb837f361d8fa6ca996d784a5784dd1d0d485e0832
[INFO] running `Command { std: "docker" "start" "-a" "c7db293c2b3e5be365f59bcb837f361d8fa6ca996d784a5784dd1d0d485e0832", kill_on_drop: false }`
[INFO] [stderr]    Compiling chewy v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]   --> src/main.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn execute1(stack: &mut Vec<i128>, op: String, b: i128) {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "c7db293c2b3e5be365f59bcb837f361d8fa6ca996d784a5784dd1d0d485e0832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7db293c2b3e5be365f59bcb837f361d8fa6ca996d784a5784dd1d0d485e0832", kill_on_drop: false }`
[INFO] [stdout] c7db293c2b3e5be365f59bcb837f361d8fa6ca996d784a5784dd1d0d485e0832
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", 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] 4818f2df918c0a2b2edba71a1e55f03cd6d341ecac315d5e210b30265b899c4b
[INFO] running `Command { std: "docker" "start" "-a" "4818f2df918c0a2b2edba71a1e55f03cd6d341ecac315d5e210b30265b899c4b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: `chewy` (bin "chewy" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chewy-3d8a858942d427a7)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4818f2df918c0a2b2edba71a1e55f03cd6d341ecac315d5e210b30265b899c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4818f2df918c0a2b2edba71a1e55f03cd6d341ecac315d5e210b30265b899c4b", kill_on_drop: false }`
[INFO] [stdout] 4818f2df918c0a2b2edba71a1e55f03cd6d341ecac315d5e210b30265b899c4b