[INFO] updating cached repository https://github.com/abhijeetbhagat/buddy-allocator [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 8e38d8533c873ab32df161b149330a1a6f559793 [INFO] checking abhijeetbhagat/buddy-allocator against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabhijeetbhagat%2Fbuddy-allocator" "/workspace/builds/worker-11/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/abhijeetbhagat/buddy-allocator on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/abhijeetbhagat/buddy-allocator [INFO] finished tweaking git repo https://github.com/abhijeetbhagat/buddy-allocator [INFO] tweaked toml for git repo https://github.com/abhijeetbhagat/buddy-allocator written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/abhijeetbhagat/buddy-allocator already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 5b791c7f32e5099be5f8f13a4e3ad7750b4ba5a154f1edb94aef9bf49b2194d7 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "5b791c7f32e5099be5f8f13a4e3ad7750b4ba5a154f1edb94aef9bf49b2194d7"` [INFO] [stderr] Checking buddy-alloc v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/main.rs:84:9 [INFO] [stderr] | [INFO] [stderr] 83 | return self.arena[start..end + 1].as_mut_ptr() as *mut T ; [INFO] [stderr] | -------------------------------------------------------- any code following this expression is unreachable [INFO] [stderr] 84 | panic!("Out of memory exception"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:30:13 [INFO] [stderr] | [INFO] [stderr] 30 | for i in 0..heap_size { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `start` is never read [INFO] [stderr] --> src/main.rs:50:13 [INFO] [stderr] | [INFO] [stderr] 50 | let mut start = 0; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `end` is never read [INFO] [stderr] --> src/main.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | let mut end = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `start` is never read [INFO] [stderr] --> src/main.rs:74:13 [INFO] [stderr] | [INFO] [stderr] 74 | let mut start = 0; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `end` is never read [INFO] [stderr] --> src/main.rs:75:13 [INFO] [stderr] | [INFO] [stderr] 75 | let mut end = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/main.rs:135:21 [INFO] [stderr] | [INFO] [stderr] 135 | for j in 0..(1 << i){ //lateral loop [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:107:21 [INFO] [stderr] | [INFO] [stderr] 107 | let mut sib_index = [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:197:9 [INFO] [stderr] | [INFO] [stderr] 197 | let mut p = ba.alloc::(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `size` [INFO] [stderr] --> src/main.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | size : usize, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `alloc_with_size` [INFO] [stderr] --> src/main.rs:41:5 [INFO] [stderr] | [INFO] [stderr] 41 | fn alloc_with_size(&mut self, size: usize) -> *mut T{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `free` [INFO] [stderr] --> src/main.rs:87:5 [INFO] [stderr] | [INFO] [stderr] 87 | fn free(&mut self, p : *mut T){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 12 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/main.rs:84:9 [INFO] [stderr] | [INFO] [stderr] 83 | return self.arena[start..end + 1].as_mut_ptr() as *mut T ; [INFO] [stderr] | -------------------------------------------------------- any code following this expression is unreachable [INFO] [stderr] 84 | panic!("Out of memory exception"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p2` [INFO] [stderr] --> src/main.rs:286:13 [INFO] [stderr] | [INFO] [stderr] 286 | let mut p2 = ba.alloc::(); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:296:13 [INFO] [stderr] | [INFO] [stderr] 296 | let mut p = ba.alloc::(); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:30:13 [INFO] [stderr] | [INFO] [stderr] 30 | for i in 0..heap_size { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `start` is never read [INFO] [stderr] --> src/main.rs:50:13 [INFO] [stderr] | [INFO] [stderr] 50 | let mut start = 0; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `end` is never read [INFO] [stderr] --> src/main.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | let mut end = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `start` is never read [INFO] [stderr] --> src/main.rs:74:13 [INFO] [stderr] | [INFO] [stderr] 74 | let mut start = 0; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `end` is never read [INFO] [stderr] --> src/main.rs:75:13 [INFO] [stderr] | [INFO] [stderr] 75 | let mut end = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/main.rs:135:21 [INFO] [stderr] | [INFO] [stderr] 135 | for j in 0..(1 << i){ //lateral loop [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:107:21 [INFO] [stderr] | [INFO] [stderr] 107 | let mut sib_index = [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:197:9 [INFO] [stderr] | [INFO] [stderr] 197 | let mut p = ba.alloc::(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:267:13 [INFO] [stderr] | [INFO] [stderr] 267 | let mut p = ba.alloc::(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:280:13 [INFO] [stderr] | [INFO] [stderr] 280 | let mut p = ba.alloc::(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:286:13 [INFO] [stderr] | [INFO] [stderr] 286 | let mut p2 = ba.alloc::(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:296:13 [INFO] [stderr] | [INFO] [stderr] 296 | let mut p = ba.alloc::(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:306:13 [INFO] [stderr] | [INFO] [stderr] 306 | let mut p = ba.alloc::(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:310:13 [INFO] [stderr] | [INFO] [stderr] 310 | let mut p2 = ba.alloc::(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:323:13 [INFO] [stderr] | [INFO] [stderr] 323 | let mut p = ba.alloc::(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:338:13 [INFO] [stderr] | [INFO] [stderr] 338 | let mut p = ba.alloc::(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unnecessary `unsafe` block [INFO] [stderr] --> src/main.rs:295:5 [INFO] [stderr] | [INFO] [stderr] 295 | unsafe{ [INFO] [stderr] | ^^^^^^ unnecessary `unsafe` block [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary `unsafe` block [INFO] [stderr] --> src/main.rs:305:5 [INFO] [stderr] | [INFO] [stderr] 305 | unsafe{ [INFO] [stderr] | ^^^^^^ unnecessary `unsafe` block [INFO] [stderr] [INFO] [stderr] warning: unnecessary `unsafe` block [INFO] [stderr] --> src/main.rs:337:5 [INFO] [stderr] | [INFO] [stderr] 337 | unsafe{ [INFO] [stderr] | ^^^^^^ unnecessary `unsafe` block [INFO] [stderr] [INFO] [stderr] warning: field is never read: `size` [INFO] [stderr] --> src/main.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | size : usize, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `alloc_with_size` [INFO] [stderr] --> src/main.rs:41:5 [INFO] [stderr] | [INFO] [stderr] 41 | fn alloc_with_size(&mut self, size: usize) -> *mut T{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 24 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.68s [INFO] running `"docker" "inspect" "5b791c7f32e5099be5f8f13a4e3ad7750b4ba5a154f1edb94aef9bf49b2194d7"` [INFO] running `"docker" "rm" "-f" "5b791c7f32e5099be5f8f13a4e3ad7750b4ba5a154f1edb94aef9bf49b2194d7"` [INFO] [stdout] 5b791c7f32e5099be5f8f13a4e3ad7750b4ba5a154f1edb94aef9bf49b2194d7