[INFO] cloning repository https://github.com/bsinglet/goncharov [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bsinglet/goncharov" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsinglet%2Fgoncharov", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsinglet%2Fgoncharov'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1f20e3ea6e9d988edc09fd76b470d578d4bfd847 [INFO] checking bsinglet/goncharov against try#bac5816c5f3d02cebd0599070af62d1782530294 for pr-150408 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsinglet%2Fgoncharov" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/bsinglet/goncharov [INFO] finished tweaking git repo https://github.com/bsinglet/goncharov [INFO] tweaked toml for git repo https://github.com/bsinglet/goncharov written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/bsinglet/goncharov on toolchain bac5816c5f3d02cebd0599070af62d1782530294 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/bsinglet/goncharov 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" "+bac5816c5f3d02cebd0599070af62d1782530294" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded parking_lot_core v0.7.3 [INFO] [stderr] Downloaded signal-hook v0.1.17 [INFO] [stderr] Downloaded crossterm_winapi v0.6.2 [INFO] [stderr] Downloaded crossterm v0.16.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7aaa0b3330bdb7171d7191fab485ed396339b2bd4ec95c9f01d457beeff5a786 [INFO] running `Command { std: "docker" "start" "-a" "7aaa0b3330bdb7171d7191fab485ed396339b2bd4ec95c9f01d457beeff5a786", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7aaa0b3330bdb7171d7191fab485ed396339b2bd4ec95c9f01d457beeff5a786", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7aaa0b3330bdb7171d7191fab485ed396339b2bd4ec95c9f01d457beeff5a786", kill_on_drop: false }` [INFO] [stdout] 7aaa0b3330bdb7171d7191fab485ed396339b2bd4ec95c9f01d457beeff5a786 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 790a5b128a2125d62d6723014f250d25c1e7ab31309796740efb3de99b1006a6 [INFO] running `Command { std: "docker" "start" "-a" "790a5b128a2125d62d6723014f250d25c1e7ab31309796740efb3de99b1006a6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.152 [INFO] [stderr] Checking smallvec v1.13.1 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking parking_lot_core v0.7.3 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking signal-hook v0.1.17 [INFO] [stderr] Checking crossterm v0.16.0 [INFO] [stderr] Checking goncharov v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:91:17 [INFO] [stdout] | [INFO] [stdout] 91 | fn _delete_text(mut piece_table: PieceTable, delete_start: usize, delete_end: usize) -> PieceTable { [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:91:17 [INFO] [stdout] | [INFO] [stdout] 91 | fn _delete_text(mut piece_table: PieceTable, delete_start: usize, delete_end: usize) -> PieceTable { [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `delete_start` [INFO] [stdout] --> src/main.rs:91:46 [INFO] [stdout] | [INFO] [stdout] 91 | fn _delete_text(mut piece_table: PieceTable, delete_start: usize, delete_end: usize) -> PieceTable { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delete_start` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `delete_end` [INFO] [stdout] --> src/main.rs:91:67 [INFO] [stdout] | [INFO] [stdout] 91 | fn _delete_text(mut piece_table: PieceTable, delete_start: usize, delete_end: usize) -> PieceTable { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delete_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `delete_start` [INFO] [stdout] --> src/main.rs:91:46 [INFO] [stdout] | [INFO] [stdout] 91 | fn _delete_text(mut piece_table: PieceTable, delete_start: usize, delete_end: usize) -> PieceTable { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delete_start` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `delete_end` [INFO] [stdout] --> src/main.rs:91:67 [INFO] [stdout] | [INFO] [stdout] 91 | fn _delete_text(mut piece_table: PieceTable, delete_start: usize, delete_end: usize) -> PieceTable { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delete_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Original` is never constructed [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 15 | enum Buffer { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 16 | Add, [INFO] [stdout] 17 | Original, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Buffer` 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 `dev` profile [unoptimized + debuginfo] target(s) in 3.51s [INFO] running `Command { std: "docker" "inspect" "790a5b128a2125d62d6723014f250d25c1e7ab31309796740efb3de99b1006a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "790a5b128a2125d62d6723014f250d25c1e7ab31309796740efb3de99b1006a6", kill_on_drop: false }` [INFO] [stdout] 790a5b128a2125d62d6723014f250d25c1e7ab31309796740efb3de99b1006a6