[INFO] fetching crate alloc_buddy_simple2 0.1.2...
[INFO] checking alloc_buddy_simple2-0.1.2 against 1.55.0 for beta-1.56-3
[INFO] extracting crate alloc_buddy_simple2 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate alloc_buddy_simple2 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alloc_buddy_simple2 0.1.2
[INFO] finished tweaking crates.io crate alloc_buddy_simple2 0.1.2
[INFO] tweaked toml for crates.io crate alloc_buddy_simple2 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ae4443bbf1d6bb23a66bea7fa9e0706edb5d9363a82b28fa778d509201f8293
[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" "6ae4443bbf1d6bb23a66bea7fa9e0706edb5d9363a82b28fa778d509201f8293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ae4443bbf1d6bb23a66bea7fa9e0706edb5d9363a82b28fa778d509201f8293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ae4443bbf1d6bb23a66bea7fa9e0706edb5d9363a82b28fa778d509201f8293", kill_on_drop: false }`
[INFO] [stdout] 6ae4443bbf1d6bb23a66bea7fa9e0706edb5d9363a82b28fa778d509201f8293
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad1c0c6b234f7ac8bd151cfff466f786842f5303c1e1ad2c90424494aa651acc
[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" "ad1c0c6b234f7ac8bd151cfff466f786842f5303c1e1ad2c90424494aa651acc", kill_on_drop: false }`
[INFO] [stderr]     Checking alloc_buddy_simple2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/heap.rs:121:49
[INFO] [stdout]     |
[INFO] [stdout] 121 |             min_block_size_log2: min_block_size.log2(),
[INFO] [stdout]     |                                                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `PowersOf2::log2(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/heap.rs:169:16
[INFO] [stdout]     |
[INFO] [stdout] 169 |             (s.log2() - self.min_block_size_log2) as usize
[INFO] [stdout]     |                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `PowersOf2::log2(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/heap.rs:121:49
[INFO] [stdout]     |
[INFO] [stdout] 121 |             min_block_size_log2: min_block_size.log2(),
[INFO] [stdout]     |                                                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `PowersOf2::log2(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/heap.rs:169:16
[INFO] [stdout]     |
[INFO] [stdout] 169 |             (s.log2() - self.min_block_size_log2) as usize
[INFO] [stdout]     |                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `PowersOf2::log2(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "ad1c0c6b234f7ac8bd151cfff466f786842f5303c1e1ad2c90424494aa651acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad1c0c6b234f7ac8bd151cfff466f786842f5303c1e1ad2c90424494aa651acc", kill_on_drop: false }`
[INFO] [stdout] ad1c0c6b234f7ac8bd151cfff466f786842f5303c1e1ad2c90424494aa651acc
