[INFO] fetching crate possibly_uninit 0.1.0... [INFO] checking possibly_uninit-0.1.0 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312 [INFO] extracting crate possibly_uninit 0.1.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate possibly_uninit 0.1.0 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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] e7eefa49576773ad8d40ed6fa44f6c222f089a2105ccd8f5fd53254c9efeba34 [INFO] running `Command { std: "docker" "start" "-a" "e7eefa49576773ad8d40ed6fa44f6c222f089a2105ccd8f5fd53254c9efeba34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e7eefa49576773ad8d40ed6fa44f6c222f089a2105ccd8f5fd53254c9efeba34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e7eefa49576773ad8d40ed6fa44f6c222f089a2105ccd8f5fd53254c9efeba34", kill_on_drop: false }` [INFO] [stdout] e7eefa49576773ad8d40ed6fa44f6c222f089a2105ccd8f5fd53254c9efeba34 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d1338ddae5913a6a9dd4cb9b63f75ca11eb396c25b4e2204032afb5231d7b5f [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" "7d1338ddae5913a6a9dd4cb9b63f75ca11eb396c25b4e2204032afb5231d7b5f", 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: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: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 1.19s [INFO] running `Command { std: "docker" "inspect" "7d1338ddae5913a6a9dd4cb9b63f75ca11eb396c25b4e2204032afb5231d7b5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d1338ddae5913a6a9dd4cb9b63f75ca11eb396c25b4e2204032afb5231d7b5f", kill_on_drop: false }` [INFO] [stdout] 7d1338ddae5913a6a9dd4cb9b63f75ca11eb396c25b4e2204032afb5231d7b5f