[INFO] cloning repository https://github.com/leetie/closure-cacher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leetie/closure-cacher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetie%2Fclosure-cacher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetie%2Fclosure-cacher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2419e4809808df32781f0af984bb1a69d1ae2575
[INFO] testing leetie/closure-cacher against master#9e136a30a965bf4e63f03095c57df7257bf96fd6 for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetie%2Fclosure-cacher" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leetie/closure-cacher on toolchain 9e136a30a965bf4e63f03095c57df7257bf96fd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leetie/closure-cacher
[INFO] finished tweaking git repo https://github.com/leetie/closure-cacher
[INFO] tweaked toml for git repo https://github.com/leetie/closure-cacher written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/leetie/closure-cacher already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d98d03288a1a9ac057a64f516e461fe592a8a2bc5e3515a997b52d3b22e5833
[INFO] running `Command { std: "docker" "start" "-a" "1d98d03288a1a9ac057a64f516e461fe592a8a2bc5e3515a997b52d3b22e5833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d98d03288a1a9ac057a64f516e461fe592a8a2bc5e3515a997b52d3b22e5833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d98d03288a1a9ac057a64f516e461fe592a8a2bc5e3515a997b52d3b22e5833", kill_on_drop: false }`
[INFO] [stdout] 1d98d03288a1a9ac057a64f516e461fe592a8a2bc5e3515a997b52d3b22e5833
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5304c86e981d5d25316c51afbfced16b9f3ea08ff2bef7bad895c89fba2ef951
[INFO] running `Command { std: "docker" "start" "-a" "5304c86e981d5d25316c51afbfced16b9f3ea08ff2bef7bad895c89fba2ef951", kill_on_drop: false }`
[INFO] [stderr]    Compiling closure-cacher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `core::num::<impl u32>::is_power_of_two` that must be used
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         arg.is_power_of_two(); // bool type!
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let _ = arg.is_power_of_two(); // bool type!
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "5304c86e981d5d25316c51afbfced16b9f3ea08ff2bef7bad895c89fba2ef951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5304c86e981d5d25316c51afbfced16b9f3ea08ff2bef7bad895c89fba2ef951", kill_on_drop: false }`
[INFO] [stdout] 5304c86e981d5d25316c51afbfced16b9f3ea08ff2bef7bad895c89fba2ef951
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26ae7d1d58cb308577d4b8fecc938e293e9b5a0df671c30469534091264a0803
[INFO] running `Command { std: "docker" "start" "-a" "26ae7d1d58cb308577d4b8fecc938e293e9b5a0df671c30469534091264a0803", kill_on_drop: false }`
[INFO] [stderr]    Compiling closure-cacher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `core::num::<impl u32>::is_power_of_two` that must be used
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         arg.is_power_of_two(); // bool type!
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let _ = arg.is_power_of_two(); // bool type!
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "26ae7d1d58cb308577d4b8fecc938e293e9b5a0df671c30469534091264a0803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26ae7d1d58cb308577d4b8fecc938e293e9b5a0df671c30469534091264a0803", kill_on_drop: false }`
[INFO] [stdout] 26ae7d1d58cb308577d4b8fecc938e293e9b5a0df671c30469534091264a0803
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 17165165a385eaee15463f1950ba9c5169fe47fa0f39bdd5cb3dae4bc5907b83
[INFO] running `Command { std: "docker" "start" "-a" "17165165a385eaee15463f1950ba9c5169fe47fa0f39bdd5cb3dae4bc5907b83", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `core::num::<impl u32>::is_power_of_two` that must be used
[INFO] [stderr]    --> src/main.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         arg.is_power_of_two(); // bool type!
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 142 |         let _ = arg.is_power_of_two(); // bool type!
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `closure-cacher` (bin "closure-cacher" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/closure_cacher-679e9c86d67ef691)
[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" "17165165a385eaee15463f1950ba9c5169fe47fa0f39bdd5cb3dae4bc5907b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17165165a385eaee15463f1950ba9c5169fe47fa0f39bdd5cb3dae4bc5907b83", kill_on_drop: false }`
[INFO] [stdout] 17165165a385eaee15463f1950ba9c5169fe47fa0f39bdd5cb3dae4bc5907b83