[INFO] cloning repository https://github.com/junglie85/alloc_experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/junglie85/alloc_experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunglie85%2Falloc_experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunglie85%2Falloc_experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49f709f855371f6cd13b1140afc73e0a87510974
[INFO] testing junglie85/alloc_experiments against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunglie85%2Falloc_experiments" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/junglie85/alloc_experiments on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/junglie85/alloc_experiments
[INFO] finished tweaking git repo https://github.com/junglie85/alloc_experiments
[INFO] tweaked toml for git repo https://github.com/junglie85/alloc_experiments written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/junglie85/alloc_experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8a5616ffa06f582e0eb4eb41b1e24b09dffdfce3b17eb06ee344105a5ec4d5b6
[INFO] running `Command { std: "docker" "start" "-a" "8a5616ffa06f582e0eb4eb41b1e24b09dffdfce3b17eb06ee344105a5ec4d5b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a5616ffa06f582e0eb4eb41b1e24b09dffdfce3b17eb06ee344105a5ec4d5b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a5616ffa06f582e0eb4eb41b1e24b09dffdfce3b17eb06ee344105a5ec4d5b6", kill_on_drop: false }`
[INFO] [stdout] 8a5616ffa06f582e0eb4eb41b1e24b09dffdfce3b17eb06ee344105a5ec4d5b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9a599f690bb766cf24f6ff0665594b84663322b1a1f1bf40152f85adfb0f777d
[INFO] running `Command { std: "docker" "start" "-a" "9a599f690bb766cf24f6ff0665594b84663322b1a1f1bf40152f85adfb0f777d", kill_on_drop: false }`
[INFO] [stderr]    Compiling alloc_experiments v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::alloc`
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use std::alloc;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `write`
[INFO] [stdout]  --> src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use std::fmt::{write, Display, Formatter};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]   --> src/lib.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |         unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]   --> src/lib.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]    --> src/lib.rs:124:19
[INFO] [stdout]     |
[INFO] [stdout] 124 |         unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `system_allocated`
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         system_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arena_allocated`
[INFO] [stdout]    --> src/lib.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         arena_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arena_remaining`
[INFO] [stdout]    --> src/lib.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         arena_remaining: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pool_allocated`
[INFO] [stdout]    --> src/lib.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         pool_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pool_remaining`
[INFO] [stdout]    --> src/lib.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         pool_remaining: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "9a599f690bb766cf24f6ff0665594b84663322b1a1f1bf40152f85adfb0f777d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a599f690bb766cf24f6ff0665594b84663322b1a1f1bf40152f85adfb0f777d", kill_on_drop: false }`
[INFO] [stdout] 9a599f690bb766cf24f6ff0665594b84663322b1a1f1bf40152f85adfb0f777d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b5747de738485bb4a3c6715e2d41c5e20fdc1b7bb9cd46b3fc64ff5e1ec7de0f
[INFO] running `Command { std: "docker" "start" "-a" "b5747de738485bb4a3c6715e2d41c5e20fdc1b7bb9cd46b3fc64ff5e1ec7de0f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused import: `std::alloc`
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use std::alloc;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `write`
[INFO] [stdout]  --> src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use std::fmt::{write, Display, Formatter};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]   --> src/lib.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |         unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]   --> src/lib.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]    --> src/lib.rs:124:19
[INFO] [stdout]     |
[INFO] [stdout] 124 |         unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `system_allocated`
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         system_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arena_allocated`
[INFO] [stdout]    --> src/lib.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         arena_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arena_remaining`
[INFO] [stdout]    --> src/lib.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         arena_remaining: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling alloc_experiments v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `pool_allocated`
[INFO] [stdout]    --> src/lib.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         pool_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pool_remaining`
[INFO] [stdout]    --> src/lib.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         pool_remaining: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::alloc`
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use std::alloc;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `write`
[INFO] [stdout]  --> src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use std::fmt::{write, Display, Formatter};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]   --> src/lib.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |         unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]   --> src/lib.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]    --> src/lib.rs:124:19
[INFO] [stdout]     |
[INFO] [stdout] 124 |         unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `system_allocated`
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         system_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arena_allocated`
[INFO] [stdout]    --> src/lib.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         arena_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arena_remaining`
[INFO] [stdout]    --> src/lib.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         arena_remaining: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pool_allocated`
[INFO] [stdout]    --> src/lib.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         pool_allocated: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pool_remaining`
[INFO] [stdout]    --> src/lib.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         pool_remaining: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.47s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/alloc_experiments-b536abb314d90db8)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/alloc_experiments-78d76200dee90ea6)
[INFO] running `Command { std: "docker" "inspect" "b5747de738485bb4a3c6715e2d41c5e20fdc1b7bb9cd46b3fc64ff5e1ec7de0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5747de738485bb4a3c6715e2d41c5e20fdc1b7bb9cd46b3fc64ff5e1ec7de0f", kill_on_drop: false }`
[INFO] [stdout] b5747de738485bb4a3c6715e2d41c5e20fdc1b7bb9cd46b3fc64ff5e1ec7de0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ccb63ae7febd676ea84bbea68429200ab5a2dffa3e7ee77532a6e7d3ea55246
[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" "2ccb63ae7febd676ea84bbea68429200ab5a2dffa3e7ee77532a6e7d3ea55246", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::alloc`
[INFO] [stderr]  --> src/lib.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     use std::alloc;
[INFO] [stderr]   |         ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Display`, `Formatter`, `write`
[INFO] [stderr]  --> src/lib.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     use std::fmt::{write, Display, Formatter};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dealloc`
[INFO] [stderr]   --> src/lib.rs:33:19
[INFO] [stderr]    |
[INFO] [stderr] 33 |         unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dealloc`
[INFO] [stderr]   --> src/lib.rs:80:19
[INFO] [stderr]    |
[INFO] [stderr] 80 |         unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dealloc`
[INFO] [stderr]    --> src/lib.rs:124:19
[INFO] [stderr]     |
[INFO] [stderr] 124 |         unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
[INFO] [stderr]     |                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `system_allocated`
[INFO] [stderr]    --> src/lib.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 |         system_allocated: usize,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:197:14
[INFO] [stderr]     |
[INFO] [stderr] 197 |     #[derive(Debug)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `arena_allocated`
[INFO] [stderr]    --> src/lib.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         arena_allocated: usize,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:197:14
[INFO] [stderr]     |
[INFO] [stderr] 197 |     #[derive(Debug)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `arena_remaining`
[INFO] [stderr]    --> src/lib.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         arena_remaining: usize,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:197:14
[INFO] [stderr]     |
[INFO] [stderr] 197 |     #[derive(Debug)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pool_allocated`
[INFO] [stderr]    --> src/lib.rs:202:9
[INFO] [stderr]     |
[INFO] [stderr] 202 |         pool_allocated: usize,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:197:14
[INFO] [stderr]     |
[INFO] [stderr] 197 |     #[derive(Debug)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pool_remaining`
[INFO] [stderr]    --> src/lib.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |         pool_remaining: usize,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `AllocationInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:197:14
[INFO] [stderr]     |
[INFO] [stderr] 197 |     #[derive(Debug)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `alloc_experiments` (lib) generated 10 warnings
[INFO] [stderr] warning: `alloc_experiments` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/alloc_experiments-b536abb314d90db8)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/alloc_experiments-78d76200dee90ea6)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests alloc_experiments
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ccb63ae7febd676ea84bbea68429200ab5a2dffa3e7ee77532a6e7d3ea55246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ccb63ae7febd676ea84bbea68429200ab5a2dffa3e7ee77532a6e7d3ea55246", kill_on_drop: false }`
[INFO] [stdout] 2ccb63ae7febd676ea84bbea68429200ab5a2dffa3e7ee77532a6e7d3ea55246