[INFO] fetching crate think_cap 0.0.1... [INFO] checking think_cap-0.0.1 against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271 [INFO] extracting crate think_cap 0.0.1 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate think_cap 0.0.1 on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate think_cap 0.0.1 [INFO] finished tweaking crates.io crate think_cap 0.0.1 [INFO] tweaked toml for crates.io crate think_cap 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+075992eda207e1647b699c8c8ada67b32ce7b115" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5cd39a8dfec8a20f81d27ed6cb1fd658e9ceedd2f33e198bfc1bb918433adcd6 [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" "5cd39a8dfec8a20f81d27ed6cb1fd658e9ceedd2f33e198bfc1bb918433adcd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5cd39a8dfec8a20f81d27ed6cb1fd658e9ceedd2f33e198bfc1bb918433adcd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5cd39a8dfec8a20f81d27ed6cb1fd658e9ceedd2f33e198bfc1bb918433adcd6", kill_on_drop: false }` [INFO] [stdout] 5cd39a8dfec8a20f81d27ed6cb1fd658e9ceedd2f33e198bfc1bb918433adcd6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3c7f4ad8f6d9390d8c38417d3256862f9c1a89b85117abe4cdc6f9c028131735 [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" "3c7f4ad8f6d9390d8c38417d3256862f9c1a89b85117abe4cdc6f9c028131735", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking think_cap v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:361:17 [INFO] [stdout] | [INFO] [stdout] 361 | let mut layer = &mut self.layers[layer_index]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:364:21 [INFO] [stdout] | [INFO] [stdout] 364 | let mut node = &mut layer[node_index]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:394:21 [INFO] [stdout] | [INFO] [stdout] 394 | let mut node_error; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:410:25 [INFO] [stdout] | [INFO] [stdout] 410 | let mut prev_layer_result; [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:361:17 [INFO] [stdout] | [INFO] [stdout] 361 | let mut layer = &mut self.layers[layer_index]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:364:21 [INFO] [stdout] | [INFO] [stdout] 364 | let mut node = &mut layer[node_index]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:394:21 [INFO] [stdout] | [INFO] [stdout] 394 | let mut node_error; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:410:25 [INFO] [stdout] | [INFO] [stdout] 410 | let mut prev_layer_result; [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.62s [INFO] running `Command { std: "docker" "inspect" "3c7f4ad8f6d9390d8c38417d3256862f9c1a89b85117abe4cdc6f9c028131735", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c7f4ad8f6d9390d8c38417d3256862f9c1a89b85117abe4cdc6f9c028131735", kill_on_drop: false }` [INFO] [stdout] 3c7f4ad8f6d9390d8c38417d3256862f9c1a89b85117abe4cdc6f9c028131735