[INFO] fetching crate doubly-linked-list 0.2.0... [INFO] testing doubly-linked-list-0.2.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7 [INFO] extracting crate doubly-linked-list 0.2.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate doubly-linked-list 0.2.0 [INFO] finished tweaking crates.io crate doubly-linked-list 0.2.0 [INFO] tweaked toml for crates.io crate doubly-linked-list 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate doubly-linked-list 0.2.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 1 package to latest compatible version [INFO] [stderr] Adding volatile v0.4.6 (available: v0.6.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5a444b60ea15eaee805e289a08651f2992dd18c3a077ab333b59d03116efb054 [INFO] running `Command { std: "docker" "start" "-a" "5a444b60ea15eaee805e289a08651f2992dd18c3a077ab333b59d03116efb054", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5a444b60ea15eaee805e289a08651f2992dd18c3a077ab333b59d03116efb054", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5a444b60ea15eaee805e289a08651f2992dd18c3a077ab333b59d03116efb054", kill_on_drop: false }` [INFO] [stdout] 5a444b60ea15eaee805e289a08651f2992dd18c3a077ab333b59d03116efb054 [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9779396949bed4bf9d4302db835190b6910b39eb6fab761d5a6e2dd82a4fbd17 [INFO] running `Command { std: "docker" "start" "-a" "9779396949bed4bf9d4302db835190b6910b39eb6fab761d5a6e2dd82a4fbd17", kill_on_drop: false }` [INFO] [stderr] Compiling volatile v0.4.6 [INFO] [stderr] Compiling doubly-linked-list v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(core_intrinsics)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: using it is strongly discouraged [INFO] [stdout] = note: `#[warn(internal_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:198:17 [INFO] [stdout] | [INFO] [stdout] 198 | pub fn iter(&self)->Iter{ [INFO] [stdout] | ^^^^^ ^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 198 | pub fn iter(&self)->Iter<'_>{ [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "9779396949bed4bf9d4302db835190b6910b39eb6fab761d5a6e2dd82a4fbd17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9779396949bed4bf9d4302db835190b6910b39eb6fab761d5a6e2dd82a4fbd17", kill_on_drop: false }` [INFO] [stdout] 9779396949bed4bf9d4302db835190b6910b39eb6fab761d5a6e2dd82a4fbd17 [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 320c514b6bd43d7d76deecdc851a1bce7f705e9af50aa09e71dc049053831abe [INFO] running `Command { std: "docker" "start" "-a" "320c514b6bd43d7d76deecdc851a1bce7f705e9af50aa09e71dc049053831abe", kill_on_drop: false }` [INFO] [stderr] Compiling doubly-linked-list v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(core_intrinsics)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: using it is strongly discouraged [INFO] [stdout] = note: `#[warn(internal_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:198:17 [INFO] [stdout] | [INFO] [stdout] 198 | pub fn iter(&self)->Iter{ [INFO] [stdout] | ^^^^^ ^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 198 | pub fn iter(&self)->Iter<'_>{ [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(core_intrinsics)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: using it is strongly discouraged [INFO] [stdout] = note: `#[warn(internal_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `list_head_init` and `list_head` [INFO] [stdout] --> src/lib.rs:241:17 [INFO] [stdout] | [INFO] [stdout] 241 | use super::{list_head, list_head_init}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:198:17 [INFO] [stdout] | [INFO] [stdout] 198 | pub fn iter(&self)->Iter{ [INFO] [stdout] | ^^^^^ ^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 198 | pub fn iter(&self)->Iter<'_>{ [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell` [INFO] [stdout] --> src/lib.rs:161:14 [INFO] [stdout] | [INFO] [stdout] 161 | *$entry = ListHead { [INFO] [stdout] | ______________^ [INFO] [stdout] 162 | | prev: core::ptr::null_mut(), [INFO] [stdout] 163 | | next: core::ptr::null_mut(), [INFO] [stdout] 164 | | }; [INFO] [stdout] | |_____________^ [INFO] [stdout] ... [INFO] [stdout] 354 | list_del!(to_list_head_ptr!(demo2.list_head)); [INFO] [stdout] | --------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] = note: `#[deny(invalid_reference_casting)]` on by default [INFO] [stdout] = note: this error originates in the macro `list_del` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell` [INFO] [stdout] --> src/lib.rs:161:14 [INFO] [stdout] | [INFO] [stdout] 161 | *$entry = ListHead { [INFO] [stdout] | ______________^ [INFO] [stdout] 162 | | prev: core::ptr::null_mut(), [INFO] [stdout] 163 | | next: core::ptr::null_mut(), [INFO] [stdout] 164 | | }; [INFO] [stdout] | |_____________^ [INFO] [stdout] ... [INFO] [stdout] 361 | list_del!(to_list_head_ptr!(demo1.list_head)); [INFO] [stdout] | --------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] = note: this error originates in the macro `list_del` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `doubly-linked-list` (lib test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "320c514b6bd43d7d76deecdc851a1bce7f705e9af50aa09e71dc049053831abe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "320c514b6bd43d7d76deecdc851a1bce7f705e9af50aa09e71dc049053831abe", kill_on_drop: false }` [INFO] [stdout] 320c514b6bd43d7d76deecdc851a1bce7f705e9af50aa09e71dc049053831abe