[INFO] cloning repository https://github.com/icostin/halfbit [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/icostin/halfbit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficostin%2Fhalfbit", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficostin%2Fhalfbit'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6d423c74fa07fb6ece29c99737b3e37fb8f1670c [INFO] checking icostin/halfbit against try#334963c956d25708feab489a3816ae63f639355d for pr-135216-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficostin%2Fhalfbit" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/icostin/halfbit on toolchain 334963c956d25708feab489a3816ae63f639355d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/icostin/halfbit [INFO] removed 0 missing examples [INFO] finished tweaking git repo https://github.com/icostin/halfbit [INFO] tweaked toml for git repo https://github.com/icostin/halfbit written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/icostin/halfbit 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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] abf25bef7895c2d3a649f25d9c0aa237465b3d5016fda3b6cbd0ec3acc73e8f9 [INFO] running `Command { std: "docker" "start" "-a" "abf25bef7895c2d3a649f25d9c0aa237465b3d5016fda3b6cbd0ec3acc73e8f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "abf25bef7895c2d3a649f25d9c0aa237465b3d5016fda3b6cbd0ec3acc73e8f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "abf25bef7895c2d3a649f25d9c0aa237465b3d5016fda3b6cbd0ec3acc73e8f9", kill_on_drop: false }` [INFO] [stdout] abf25bef7895c2d3a649f25d9c0aa237465b3d5016fda3b6cbd0ec3acc73e8f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de775176b3a31806b4f2324af37e8e3c9cd7d0a51bab2237dd20ea1d1c5f108e [INFO] running `Command { std: "docker" "start" "-a" "de775176b3a31806b4f2324af37e8e3c9cd7d0a51bab2237dd20ea1d1c5f108e", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.69 [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling num-derive v0.3.3 [INFO] [stderr] Checking halfbit v0.0.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/mm/box.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | #[cfg(nightly)] [INFO] [stdout] | ^^^^^^^ help: found config with similar value: `feature = "nightly"` [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows` [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/mm/box.rs:57:11 [INFO] [stdout] | [INFO] [stdout] 57 | #[cfg(nightly)] [INFO] [stdout] | ^^^^^^^ help: found config with similar value: `feature = "nightly"` [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/mm/vector.rs:265:41 [INFO] [stdout] | [INFO] [stdout] 263 | impl<'a> ByteVectorStream<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 264 | [INFO] [stdout] 265 | pub fn new(data: Vector<'a, u8>) -> ByteVectorStream { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/mm/rc.rs:53:68 [INFO] [stdout] | [INFO] [stdout] 53 | unsafe fn rc_ctl_block<'a, T:?Sized>(payload: &'a RcPayload) -> &mut RcCtlBlock<'a> { [INFO] [stdout] | -- lifetime `'a` declared here ^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/mm/box.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | #[cfg(nightly)] [INFO] [stdout] | ^^^^^^^ help: found config with similar value: `feature = "nightly"` [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows` [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/mm/box.rs:57:11 [INFO] [stdout] | [INFO] [stdout] 57 | #[cfg(nightly)] [INFO] [stdout] | ^^^^^^^ help: found config with similar value: `feature = "nightly"` [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/mm/box.rs:195:11 [INFO] [stdout] | [INFO] [stdout] 195 | #[cfg(nightly)] [INFO] [stdout] | ^^^^^^^ help: found config with similar value: `feature = "nightly"` [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/mm/box.rs:228:11 [INFO] [stdout] | [INFO] [stdout] 228 | #[cfg(nightly)] [INFO] [stdout] | ^^^^^^^ help: found config with similar value: `feature = "nightly"` [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/mm/vector.rs:265:41 [INFO] [stdout] | [INFO] [stdout] 263 | impl<'a> ByteVectorStream<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 264 | [INFO] [stdout] 265 | pub fn new(data: Vector<'a, u8>) -> ByteVectorStream { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/mm/rc.rs:53:68 [INFO] [stdout] | [INFO] [stdout] 53 | unsafe fn rc_ctl_block<'a, T:?Sized>(payload: &'a RcPayload) -> &mut RcCtlBlock<'a> { [INFO] [stdout] | -- lifetime `'a` declared here ^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `TestDynBoxTrait` is never used [INFO] [stdout] --> src/mm/box.rs:172:11 [INFO] [stdout] | [INFO] [stdout] 172 | trait TestDynBoxTrait: fmt::Debug { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TestDynBoxA` is never constructed [INFO] [stdout] --> src/mm/box.rs:178:12 [INFO] [stdout] | [INFO] [stdout] 178 | struct TestDynBoxA(u8); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TestDynBoxB` is never constructed [INFO] [stdout] --> src/mm/box.rs:184:12 [INFO] [stdout] | [INFO] [stdout] 184 | struct TestDynBoxB<'a>(&'a mut usize); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/mm/rc.rs:486:20 [INFO] [stdout] | [INFO] [stdout] 486 | struct Align64(u32); [INFO] [stdout] | ------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.60s [INFO] running `Command { std: "docker" "inspect" "de775176b3a31806b4f2324af37e8e3c9cd7d0a51bab2237dd20ea1d1c5f108e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de775176b3a31806b4f2324af37e8e3c9cd7d0a51bab2237dd20ea1d1c5f108e", kill_on_drop: false }` [INFO] [stdout] de775176b3a31806b4f2324af37e8e3c9cd7d0a51bab2237dd20ea1d1c5f108e