[INFO] fetching crate possibly_uninit 0.1.0... [INFO] testing possibly_uninit-0.1.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] extracting crate possibly_uninit 0.1.0 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate possibly_uninit 0.1.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cb383f6a896d75c9b9783b0df0f6fc140e7affcc7219c4cd11903bd492df16e2 [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" "cb383f6a896d75c9b9783b0df0f6fc140e7affcc7219c4cd11903bd492df16e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cb383f6a896d75c9b9783b0df0f6fc140e7affcc7219c4cd11903bd492df16e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb383f6a896d75c9b9783b0df0f6fc140e7affcc7219c4cd11903bd492df16e2", kill_on_drop: false }` [INFO] [stdout] cb383f6a896d75c9b9783b0df0f6fc140e7affcc7219c4cd11903bd492df16e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1d7539fae63c225d2890543cd9c5cceeda2fd2e4f6e5108d56fabf75bbd73624 [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" "1d7539fae63c225d2890543cd9c5cceeda2fd2e4f6e5108d56fabf75bbd73624", kill_on_drop: false }` [INFO] [stderr] Compiling 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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.85s [INFO] running `Command { std: "docker" "inspect" "1d7539fae63c225d2890543cd9c5cceeda2fd2e4f6e5108d56fabf75bbd73624", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d7539fae63c225d2890543cd9c5cceeda2fd2e4f6e5108d56fabf75bbd73624", kill_on_drop: false }` [INFO] [stdout] 1d7539fae63c225d2890543cd9c5cceeda2fd2e4f6e5108d56fabf75bbd73624 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] f02d01060d0c3cee09bd53b9a6ca3be14c0b7f89e95a12950f63732f26d2e466 [INFO] running `Command { std: "docker" "start" "-a" "f02d01060d0c3cee09bd53b9a6ca3be14c0b7f89e95a12950f63732f26d2e466", kill_on_drop: false }` [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] [stderr] Compiling 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: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: 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] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.63s [INFO] running `Command { std: "docker" "inspect" "f02d01060d0c3cee09bd53b9a6ca3be14c0b7f89e95a12950f63732f26d2e466", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f02d01060d0c3cee09bd53b9a6ca3be14c0b7f89e95a12950f63732f26d2e466", kill_on_drop: false }` [INFO] [stdout] f02d01060d0c3cee09bd53b9a6ca3be14c0b7f89e95a12950f63732f26d2e466 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] dc60c53bd2704380af4f45ab609f1ab2dbc786cb655e957518633da4f33f9772 [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" "dc60c53bd2704380af4f45ab609f1ab2dbc786cb655e957518633da4f33f9772", kill_on_drop: false }` [INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future [INFO] [stderr] --> src/lib.rs:122:20 [INFO] [stderr] | [INFO] [stderr] 122 | self.0.assume_init_mut() [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stderr] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stderr] = note: for more information, see issue #48919 [INFO] [stderr] = help: call with fully qualified syntax `BorrowOut::assume_init_mut(...)` to keep using the current method [INFO] [stderr] = help: add `#![feature(maybe_uninit_ref)]` to the crate attributes to enable `MaybeUninit::::assume_init_mut` [INFO] [stderr] [INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future [INFO] [stderr] --> src/lib.rs:134:20 [INFO] [stderr] | [INFO] [stderr] 134 | self.0.assume_init_mut() [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stderr] = note: for more information, see issue #48919 [INFO] [stderr] = help: call with fully qualified syntax `BorrowOut::assume_init_mut(...)` to keep using the current method [INFO] [stderr] = help: add `#![feature(maybe_uninit_ref)]` to the crate attributes to enable `MaybeUninit::::assume_init_mut` [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future [INFO] [stderr] --> src/lib.rs:122:20 [INFO] [stderr] | [INFO] [stderr] 122 | self.0.assume_init_mut() [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stderr] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stderr] = note: for more information, see issue #48919 [INFO] [stderr] = help: call with fully qualified syntax `BorrowOut::assume_init_mut(...)` to keep using the current method [INFO] [stderr] = help: add `#![feature(maybe_uninit_ref)]` to the crate attributes to enable `MaybeUninit::::assume_init_mut` [INFO] [stderr] [INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future [INFO] [stderr] --> src/lib.rs:134:20 [INFO] [stderr] | [INFO] [stderr] 134 | self.0.assume_init_mut() [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stderr] = note: for more information, see issue #48919 [INFO] [stderr] = help: call with fully qualified syntax `BorrowOut::assume_init_mut(...)` to keep using the current method [INFO] [stderr] = help: add `#![feature(maybe_uninit_ref)]` to the crate attributes to enable `MaybeUninit::::assume_init_mut` [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/possibly_uninit-ac78e7417a77485b) [INFO] [stdout] running 2 tests [INFO] [stdout] test slice::cursor::test::slice ... ok [INFO] [stdout] test slice::cursor::test::arr ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests possibly_uninit [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/slice/mod.rs - slice::OutSlice (line 51) ... ok [INFO] [stdout] test src/lib.rs - Out (line 48) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.14s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "dc60c53bd2704380af4f45ab609f1ab2dbc786cb655e957518633da4f33f9772", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc60c53bd2704380af4f45ab609f1ab2dbc786cb655e957518633da4f33f9772", kill_on_drop: false }` [INFO] [stdout] dc60c53bd2704380af4f45ab609f1ab2dbc786cb655e957518633da4f33f9772