[INFO] cloning repository https://github.com/alexcrichton/rust-fannkuch-js-and-wasm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexcrichton/rust-fannkuch-js-and-wasm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Frust-fannkuch-js-and-wasm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Frust-fannkuch-js-and-wasm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e82d00a96f292d5faa66aebdb87978c0aa8c3caf
[INFO] testing alexcrichton/rust-fannkuch-js-and-wasm against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Frust-fannkuch-js-and-wasm" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexcrichton/rust-fannkuch-js-and-wasm on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexcrichton/rust-fannkuch-js-and-wasm
[INFO] finished tweaking git repo https://github.com/alexcrichton/rust-fannkuch-js-and-wasm
[INFO] tweaked toml for git repo https://github.com/alexcrichton/rust-fannkuch-js-and-wasm written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/alexcrichton/rust-fannkuch-js-and-wasm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa841320831ae55c7b186ee8554644783fe9155b42e3539e3b25604e3b8ee35e
[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" "fa841320831ae55c7b186ee8554644783fe9155b42e3539e3b25604e3b8ee35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa841320831ae55c7b186ee8554644783fe9155b42e3539e3b25604e3b8ee35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa841320831ae55c7b186ee8554644783fe9155b42e3539e3b25604e3b8ee35e", kill_on_drop: false }`
[INFO] [stdout] fa841320831ae55c7b186ee8554644783fe9155b42e3539e3b25604e3b8ee35e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] f6f68b7dd79f2977d65c6c1a2011f42bc52345d2ce6ed4973b801230680a90ae
[INFO] running `Command { std: "docker" "start" "-a" "f6f68b7dd79f2977d65c6c1a2011f42bc52345d2ce6ed4973b801230680a90ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-fannkuch-js-and-wasm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `checksum`
[INFO] [stdout]    --> src/lib.rs:125:10
[INFO] [stdout]     |
[INFO] [stdout] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stdout]     |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_checksum`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `maxflips`
[INFO] [stdout]    --> src/lib.rs:125:20
[INFO] [stdout]     |
[INFO] [stdout] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_maxflips`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "f6f68b7dd79f2977d65c6c1a2011f42bc52345d2ce6ed4973b801230680a90ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6f68b7dd79f2977d65c6c1a2011f42bc52345d2ce6ed4973b801230680a90ae", kill_on_drop: false }`
[INFO] [stdout] f6f68b7dd79f2977d65c6c1a2011f42bc52345d2ce6ed4973b801230680a90ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e9032c1a93e93bb68adaca2511e6a68f934a7d08028ac7249d146918a4f428d
[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" "7e9032c1a93e93bb68adaca2511e6a68f934a7d08028ac7249d146918a4f428d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-fannkuch-js-and-wasm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `checksum`
[INFO] [stdout]    --> src/lib.rs:125:10
[INFO] [stdout]     |
[INFO] [stdout] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stdout]     |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_checksum`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `maxflips`
[INFO] [stdout]    --> src/lib.rs:125:20
[INFO] [stdout]     |
[INFO] [stdout] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_maxflips`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7e9032c1a93e93bb68adaca2511e6a68f934a7d08028ac7249d146918a4f428d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e9032c1a93e93bb68adaca2511e6a68f934a7d08028ac7249d146918a4f428d", kill_on_drop: false }`
[INFO] [stdout] 7e9032c1a93e93bb68adaca2511e6a68f934a7d08028ac7249d146918a4f428d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3266dfadba1ce93c2a6ca1d494e8921e183459e18ec768c8860e17ba321a37e4
[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" "3266dfadba1ce93c2a6ca1d494e8921e183459e18ec768c8860e17ba321a37e4", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `checksum`
[INFO] [stderr]    --> src/lib.rs:125:10
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stderr]     |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_checksum`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `maxflips`
[INFO] [stderr]    --> src/lib.rs:125:20
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stderr]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_maxflips`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_fannkuch_js_and_wasm-efe4e5378460d5a3
[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 `Command { std: "docker" "inspect" "3266dfadba1ce93c2a6ca1d494e8921e183459e18ec768c8860e17ba321a37e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3266dfadba1ce93c2a6ca1d494e8921e183459e18ec768c8860e17ba321a37e4", kill_on_drop: false }`
[INFO] [stdout] 3266dfadba1ce93c2a6ca1d494e8921e183459e18ec768c8860e17ba321a37e4
