[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 try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Frust-fannkuch-js-and-wasm" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexcrichton/rust-fannkuch-js-and-wasm on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7a5d26ed1314f4f9bcf4b4b08f27219aa0c0d697c653fc0278b5e40c2cc9b19
[INFO] running `Command { std: "docker" "start" "-a" "d7a5d26ed1314f4f9bcf4b4b08f27219aa0c0d697c653fc0278b5e40c2cc9b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7a5d26ed1314f4f9bcf4b4b08f27219aa0c0d697c653fc0278b5e40c2cc9b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7a5d26ed1314f4f9bcf4b4b08f27219aa0c0d697c653fc0278b5e40c2cc9b19", kill_on_drop: false }`
[INFO] [stdout] d7a5d26ed1314f4f9bcf4b4b08f27219aa0c0d697c653fc0278b5e40c2cc9b19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ced5ce620e2c68b3185a0258468437650d9714c8255229944cab02b21105fa6
[INFO] running `Command { std: "docker" "start" "-a" "5ced5ce620e2c68b3185a0258468437650d9714c8255229944cab02b21105fa6", 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 0.47s
[INFO] running `Command { std: "docker" "inspect" "5ced5ce620e2c68b3185a0258468437650d9714c8255229944cab02b21105fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ced5ce620e2c68b3185a0258468437650d9714c8255229944cab02b21105fa6", kill_on_drop: false }`
[INFO] [stdout] 5ced5ce620e2c68b3185a0258468437650d9714c8255229944cab02b21105fa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8afd4a63cd92fa8a0f39f48d6d5a29e655a7de2ca9e3b9ac791e23128b26aea
[INFO] running `Command { std: "docker" "start" "-a" "a8afd4a63cd92fa8a0f39f48d6d5a29e655a7de2ca9e3b9ac791e23128b26aea", 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 0.47s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a8afd4a63cd92fa8a0f39f48d6d5a29e655a7de2ca9e3b9ac791e23128b26aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8afd4a63cd92fa8a0f39f48d6d5a29e655a7de2ca9e3b9ac791e23128b26aea", kill_on_drop: false }`
[INFO] [stdout] a8afd4a63cd92fa8a0f39f48d6d5a29e655a7de2ca9e3b9ac791e23128b26aea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c871f6d7d91534d70f942b11002de8849b80ac465519561233fba65da3b391d5
[INFO] running `Command { std: "docker" "start" "-a" "c871f6d7d91534d70f942b11002de8849b80ac465519561233fba65da3b391d5", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `checksum`
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/lib.rs:125:10
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stdout] 
[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 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_fannkuch_js_and_wasm-d3bf1ec9b0fa2e79)
[INFO] running `Command { std: "docker" "inspect" "c871f6d7d91534d70f942b11002de8849b80ac465519561233fba65da3b391d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c871f6d7d91534d70f942b11002de8849b80ac465519561233fba65da3b391d5", kill_on_drop: false }`
[INFO] [stdout] c871f6d7d91534d70f942b11002de8849b80ac465519561233fba65da3b391d5