[INFO] fetching crate muto 0.1.0... [INFO] building muto-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2 [INFO] extracting crate muto 0.1.0 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate muto 0.1.0 [INFO] finished tweaking crates.io crate muto 0.1.0 [INFO] tweaked toml for crates.io crate muto 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate muto 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate muto 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3ee29016bed89430807f60f6e59ce2ee4fe77f9f02a850b60bb896cbf17ac1a4 [INFO] running `Command { std: "docker" "start" "-a" "3ee29016bed89430807f60f6e59ce2ee4fe77f9f02a850b60bb896cbf17ac1a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3ee29016bed89430807f60f6e59ce2ee4fe77f9f02a850b60bb896cbf17ac1a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ee29016bed89430807f60f6e59ce2ee4fe77f9f02a850b60bb896cbf17ac1a4", kill_on_drop: false }` [INFO] [stdout] 3ee29016bed89430807f60f6e59ce2ee4fe77f9f02a850b60bb896cbf17ac1a4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 44d6db4ec7fdca0ff8ceddc5748f32641e1b48bb17970b2c982d7b5a82d81ff7 [INFO] running `Command { std: "docker" "start" "-a" "44d6db4ec7fdca0ff8ceddc5748f32641e1b48bb17970b2c982d7b5a82d81ff7", kill_on_drop: false }` [INFO] [stderr] Compiling muto v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::mem::take` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::mem::take; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `prev_task` and `next_task` are never read [INFO] [stdout] --> src/lib.rs:236:2 [INFO] [stdout] | [INFO] [stdout] 235 | struct InsertionData { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 236 | prev_task: Task, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 237 | next_task: Task, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InsertionData` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `solutions` [INFO] [stdout] --> src/main.rs:38:6 [INFO] [stdout] | [INFO] [stdout] 38 | let solutions = muto.solve(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_solutions` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s [INFO] running `Command { std: "docker" "inspect" "44d6db4ec7fdca0ff8ceddc5748f32641e1b48bb17970b2c982d7b5a82d81ff7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44d6db4ec7fdca0ff8ceddc5748f32641e1b48bb17970b2c982d7b5a82d81ff7", kill_on_drop: false }` [INFO] [stdout] 44d6db4ec7fdca0ff8ceddc5748f32641e1b48bb17970b2c982d7b5a82d81ff7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4672fc18e2a0df161ecbddc396de8dc03eea385333021eeebeed00363b49a568 [INFO] running `Command { std: "docker" "start" "-a" "4672fc18e2a0df161ecbddc396de8dc03eea385333021eeebeed00363b49a568", kill_on_drop: false }` [INFO] [stderr] Compiling muto v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::mem::take` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::mem::take; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `prev_task` and `next_task` are never read [INFO] [stdout] --> src/lib.rs:236:2 [INFO] [stdout] | [INFO] [stdout] 235 | struct InsertionData { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 236 | prev_task: Task, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 237 | next_task: Task, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InsertionData` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem::take` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::mem::take; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `solutions` [INFO] [stdout] --> src/main.rs:38:6 [INFO] [stdout] | [INFO] [stdout] 38 | let solutions = muto.solve(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_solutions` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `prev_task` and `next_task` are never read [INFO] [stdout] --> src/lib.rs:236:2 [INFO] [stdout] | [INFO] [stdout] 235 | struct InsertionData { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 236 | prev_task: Task, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 237 | next_task: Task, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InsertionData` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s [INFO] running `Command { std: "docker" "inspect" "4672fc18e2a0df161ecbddc396de8dc03eea385333021eeebeed00363b49a568", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4672fc18e2a0df161ecbddc396de8dc03eea385333021eeebeed00363b49a568", kill_on_drop: false }` [INFO] [stdout] 4672fc18e2a0df161ecbddc396de8dc03eea385333021eeebeed00363b49a568