[INFO] cloning repository https://github.com/wattlebirdaz/bufferpool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wattlebirdaz/bufferpool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Fbufferpool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Fbufferpool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2489e6db4b96973ee07af0eb790a895329cbd76
[INFO] checking wattlebirdaz/bufferpool against master#0e517d38ad0e72f93c734b14fabd4bb9b7441de6 for pr-140557-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Fbufferpool" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wattlebirdaz/bufferpool on toolchain 0e517d38ad0e72f93c734b14fabd4bb9b7441de6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/wattlebirdaz/bufferpool
[INFO] finished tweaking git repo https://github.com/wattlebirdaz/bufferpool
[INFO] tweaked toml for git repo https://github.com/wattlebirdaz/bufferpool written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wattlebirdaz/bufferpool 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" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30404311184d203b5641b5d2e5a3b841a330d4810a79460c864c5ed73c9129e4
[INFO] running `Command { std: "docker" "start" "-a" "30404311184d203b5641b5d2e5a3b841a330d4810a79460c864c5ed73c9129e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30404311184d203b5641b5d2e5a3b841a330d4810a79460c864c5ed73c9129e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30404311184d203b5641b5d2e5a3b841a330d4810a79460c864c5ed73c9129e4", kill_on_drop: false }`
[INFO] [stdout] 30404311184d203b5641b5d2e5a3b841a330d4810a79460c864c5ed73c9129e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44feaf254a9f6c818ad2691579c1edbae8b1fc9561fca745a1fd9ec6a682db4e
[INFO] running `Command { std: "docker" "start" "-a" "44feaf254a9f6c818ad2691579c1edbae8b1fc9561fca745a1fd9ec6a682db4e", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `cell::UnsafeCell`
[INFO] [stdout]   --> src/bp/frame_guards.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     cell::UnsafeCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_some`, `is_none`, `is_some`, `take`, and `try_claim_empty` are never used
[INFO] [stdout]   --> src/bp/frame_guards.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl AtomicOptionKey {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn new_some(k: PageKey) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn is_none(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn is_some(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn take(&self) -> Option<PageKey> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn try_claim_empty(&self, key: PageKey) -> Result<(), Option<PageKey>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VMCACHE_MAX_PAGES` is never used
[INFO] [stdout]    --> src/bp/mem_pool_trait.rs:127:11
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub const VMCACHE_MAX_PAGES: u32 = 1 << 25; // 2^25 pages
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_some`, `is_none`, `is_some`, `take`, and `try_claim_empty` are never used
[INFO] [stdout]   --> src/bp/frame_guards.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl AtomicOptionKey {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn new_some(k: PageKey) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn is_none(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn is_some(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn take(&self) -> Option<PageKey> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn try_claim_empty(&self, key: PageKey) -> Result<(), Option<PageKey>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VMCACHE_MAX_PAGES` is never used
[INFO] [stdout]    --> src/bp/mem_pool_trait.rs:127:11
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub const VMCACHE_MAX_PAGES: u32 = 1 << 25; // 2^25 pages
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "44feaf254a9f6c818ad2691579c1edbae8b1fc9561fca745a1fd9ec6a682db4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44feaf254a9f6c818ad2691579c1edbae8b1fc9561fca745a1fd9ec6a682db4e", kill_on_drop: false }`
[INFO] [stdout] 44feaf254a9f6c818ad2691579c1edbae8b1fc9561fca745a1fd9ec6a682db4e