[INFO] cloning repository https://github.com/cvuillecard/BTree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cvuillecard/BTree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcvuillecard%2FBTree", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcvuillecard%2FBTree'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 72005f82d1b2c8dd44abc11a6f8522102c413134 [INFO] building cvuillecard/BTree against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcvuillecard%2FBTree" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cvuillecard/BTree on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cvuillecard/BTree [INFO] finished tweaking git repo https://github.com/cvuillecard/BTree [INFO] tweaked toml for git repo https://github.com/cvuillecard/BTree written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/cvuillecard/BTree 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c8adb6e7acfe945b0ba46fca3d4b4124b497643fe172e9802d9c57d57182fc83 [INFO] running `Command { std: "docker" "start" "-a" "c8adb6e7acfe945b0ba46fca3d4b4124b497643fe172e9802d9c57d57182fc83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c8adb6e7acfe945b0ba46fca3d4b4124b497643fe172e9802d9c57d57182fc83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8adb6e7acfe945b0ba46fca3d4b4124b497643fe172e9802d9c57d57182fc83", kill_on_drop: false }` [INFO] [stdout] c8adb6e7acfe945b0ba46fca3d4b4124b497643fe172e9802d9c57d57182fc83 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9e99a039bfdd61e666d6dcc241f7535039154de768578fa62c2cf278af358b60 [INFO] running `Command { std: "docker" "start" "-a" "9e99a039bfdd61e666d6dcc241f7535039154de768578fa62c2cf278af358b60", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling crossbeam-queue v0.3.2 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling crossbeam v0.8.1 [INFO] [stderr] Compiling BTree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Into` [INFO] [stdout] --> src/btree/mod.rs:7:26 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::{From, Into}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fmt` and `thread` [INFO] [stdout] --> src/btree/mod.rs:9:11 [INFO] [stdout] | [INFO] [stdout] 9 | use std::{fmt, thread}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/btree/mod.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Receiver` and `Sender` [INFO] [stdout] --> src/btree/mod.rs:11:23 [INFO] [stdout] | [INFO] [stdout] 11 | use std::sync::mpsc::{Sender, Receiver}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc` [INFO] [stdout] --> src/btree/mod.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::slice::ChunksMut` [INFO] [stdout] --> src/btree/mod.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use std::slice::ChunksMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scope` [INFO] [stdout] --> src/btree/mod.rs:135:33 [INFO] [stdout] | [INFO] [stdout] 135 | spawner.spawn(move |scope| { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ARITY` is never used [INFO] [stdout] --> src/btree/mod.rs:18:11 [INFO] [stdout] | [INFO] [stdout] 18 | pub const ARITY: usize = 2; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/btree/mod.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct Node { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 22 | data: T [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/btree/mod.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Node { [INFO] [stdout] | ----------------------------------------------------------------------- associated function in this implementation [INFO] [stdout] 26 | pub fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `root`, `left`, `right`, `parent`, `search`, and `binary_search` are never used [INFO] [stdout] --> src/btree/mod.rs:72:12 [INFO] [stdout] | [INFO] [stdout] 60 | impl VecBtree { [INFO] [stdout] | --------------------------------------------------------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 72 | pub fn root(&mut self) -> &mut Node { &mut self.buf[0] } [INFO] [stdout] | ^^^^ [INFO] [stdout] 73 | [INFO] [stdout] 74 | pub fn left(&mut self, idx: usize) -> usize { ARITY * idx + 1 } [INFO] [stdout] | ^^^^ [INFO] [stdout] 75 | [INFO] [stdout] 76 | pub fn right(&mut self, idx: usize) -> usize { ARITY * idx + 2 } [INFO] [stdout] | ^^^^^ [INFO] [stdout] 77 | [INFO] [stdout] 78 | pub fn parent(&mut self, idx: usize) -> usize { (idx - 1) / 2 } [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 85 | pub fn search(&mut self, data: &T) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 89 | fn binary_search(&mut self, data: &T, start_idx: &mut isize, end_idx: &mut isize) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `binary_search` is never used [INFO] [stdout] --> src/btree/mod.rs:105:4 [INFO] [stdout] | [INFO] [stdout] 105 | fn binary_search<'a, T: std::cmp::PartialEq + std::cmp::PartialOrd>(buf: &'a [Node], data: &'a T, start_idx: &'a isize, end_idx: &'a i... [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `search_by_chunk` is never used [INFO] [stdout] --> src/btree/mod.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn search_by_chunk(btree: &mut VecBtree, data: &T, chunk_size: usize) -> Optio... [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/btree/mod.rs:129:5 [INFO] [stdout] | [INFO] [stdout] 129 | / crossbeam::scope(|spawner| { [INFO] [stdout] 130 | | for (i, line) in lines.into_iter().enumerate() { [INFO] [stdout] 131 | | if !r.is_empty() { [INFO] [stdout] 132 | | break; [INFO] [stdout] ... | [INFO] [stdout] 142 | | }); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 129 | let _ = crossbeam::scope(|spawner| { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/btree/mod.rs:138:21 [INFO] [stdout] | [INFO] [stdout] 138 | sender.send((i, *v)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 138 | let _ = sender.send((i, *v)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.44s [INFO] running `Command { std: "docker" "inspect" "9e99a039bfdd61e666d6dcc241f7535039154de768578fa62c2cf278af358b60", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e99a039bfdd61e666d6dcc241f7535039154de768578fa62c2cf278af358b60", kill_on_drop: false }` [INFO] [stdout] 9e99a039bfdd61e666d6dcc241f7535039154de768578fa62c2cf278af358b60 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f0fe267a3efb68b62173209d67974d041d908a27fba6a911cf74bcaf94ba08fc [INFO] running `Command { std: "docker" "start" "-a" "f0fe267a3efb68b62173209d67974d041d908a27fba6a911cf74bcaf94ba08fc", kill_on_drop: false }` [INFO] [stderr] Compiling BTree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Into` [INFO] [stdout] --> src/btree/mod.rs:7:26 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::{From, Into}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fmt` and `thread` [INFO] [stdout] --> src/btree/mod.rs:9:11 [INFO] [stdout] | [INFO] [stdout] 9 | use std::{fmt, thread}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/btree/mod.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Receiver` and `Sender` [INFO] [stdout] --> src/btree/mod.rs:11:23 [INFO] [stdout] | [INFO] [stdout] 11 | use std::sync::mpsc::{Sender, Receiver}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc` [INFO] [stdout] --> src/btree/mod.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::slice::ChunksMut` [INFO] [stdout] --> src/btree/mod.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use std::slice::ChunksMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scope` [INFO] [stdout] --> src/btree/mod.rs:135:33 [INFO] [stdout] | [INFO] [stdout] 135 | spawner.spawn(move |scope| { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/btree/mod.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Node { [INFO] [stdout] | ----------------------------------------------------------------------- associated function in this implementation [INFO] [stdout] 26 | pub fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/btree/mod.rs:129:5 [INFO] [stdout] | [INFO] [stdout] 129 | / crossbeam::scope(|spawner| { [INFO] [stdout] 130 | | for (i, line) in lines.into_iter().enumerate() { [INFO] [stdout] 131 | | if !r.is_empty() { [INFO] [stdout] 132 | | break; [INFO] [stdout] ... | [INFO] [stdout] 142 | | }); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 129 | let _ = crossbeam::scope(|spawner| { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/btree/mod.rs:138:21 [INFO] [stdout] | [INFO] [stdout] 138 | sender.send((i, *v)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 138 | let _ = sender.send((i, *v)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s [INFO] running `Command { std: "docker" "inspect" "f0fe267a3efb68b62173209d67974d041d908a27fba6a911cf74bcaf94ba08fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0fe267a3efb68b62173209d67974d041d908a27fba6a911cf74bcaf94ba08fc", kill_on_drop: false }` [INFO] [stdout] f0fe267a3efb68b62173209d67974d041d908a27fba6a911cf74bcaf94ba08fc