[INFO] fetching crate possibly_uninit 0.1.0... [INFO] checking possibly_uninit-0.1.0 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387 [INFO] extracting crate possibly_uninit 0.1.0 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate possibly_uninit 0.1.0 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate possibly_uninit 0.1.0 [INFO] finished tweaking crates.io crate possibly_uninit 0.1.0 [INFO] tweaked toml for crates.io crate possibly_uninit 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 184bbd865661297eb07e9f6a3171ad105a8155792161e63daab37f80da4bfb8d [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" "184bbd865661297eb07e9f6a3171ad105a8155792161e63daab37f80da4bfb8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "184bbd865661297eb07e9f6a3171ad105a8155792161e63daab37f80da4bfb8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "184bbd865661297eb07e9f6a3171ad105a8155792161e63daab37f80da4bfb8d", kill_on_drop: false }` [INFO] [stdout] 184bbd865661297eb07e9f6a3171ad105a8155792161e63daab37f80da4bfb8d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 141d8f4ab4af2824420ff0b0a6dbf28fbe43cf6d5c86d3f252687a7391b0f4bf [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" "141d8f4ab4af2824420ff0b0a6dbf28fbe43cf6d5c86d3f252687a7391b0f4bf", kill_on_drop: false }` [INFO] [stderr] Checking possibly_uninit v0.1.0 (/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/lib.rs:122:20 [INFO] [stdout] | [INFO] [stdout] 122 | self.0.assume_init_mut() [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 [INFO] [stdout] = help: call with fully qualified syntax `BorrowOut::assume_init_mut(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(maybe_uninit_ref)]` to the crate attributes to enable `MaybeUninit::::assume_init_mut` [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/lib.rs:134:20 [INFO] [stdout] | [INFO] [stdout] 134 | self.0.assume_init_mut() [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 [INFO] [stdout] = help: call with fully qualified syntax `BorrowOut::assume_init_mut(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(maybe_uninit_ref)]` to the crate attributes to enable `MaybeUninit::::assume_init_mut` [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/lib.rs:122:20 [INFO] [stdout] | [INFO] [stdout] 122 | self.0.assume_init_mut() [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 [INFO] [stdout] = help: call with fully qualified syntax `BorrowOut::assume_init_mut(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(maybe_uninit_ref)]` to the crate attributes to enable `MaybeUninit::::assume_init_mut` [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/lib.rs:134:20 [INFO] [stdout] | [INFO] [stdout] 134 | self.0.assume_init_mut() [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 [INFO] [stdout] = help: call with fully qualified syntax `BorrowOut::assume_init_mut(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(maybe_uninit_ref)]` to the crate attributes to enable `MaybeUninit::::assume_init_mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.64s [INFO] running `Command { std: "docker" "inspect" "141d8f4ab4af2824420ff0b0a6dbf28fbe43cf6d5c86d3f252687a7391b0f4bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "141d8f4ab4af2824420ff0b0a6dbf28fbe43cf6d5c86d3f252687a7391b0f4bf", kill_on_drop: false }` [INFO] [stdout] 141d8f4ab4af2824420ff0b0a6dbf28fbe43cf6d5c86d3f252687a7391b0f4bf