[INFO] cloning repository https://github.com/tikv/skiplist-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tikv/skiplist-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikv%2Fskiplist-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikv%2Fskiplist-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbb04cffa14033a8e8bfddf245501db517f0f87b
[INFO] testing tikv/skiplist-rs against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikv%2Fskiplist-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tikv/skiplist-rs
[INFO] finished tweaking git repo https://github.com/tikv/skiplist-rs
[INFO] tweaked toml for git repo https://github.com/tikv/skiplist-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tikv/skiplist-rs on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tikv/skiplist-rs 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.11
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.17
[INFO] [stderr]   Downloaded libc v0.2.151
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4
[INFO] running `Command { std: "docker" "start" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling skiplist-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]     --> src/base.rs:2115:28
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^---------^^^^^^^^^^
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              this raw pointer has type `*mut Node<K, V>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Tower<K, V>`
[INFO] [stdout]     --> src/base.rs:2115:28
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (&(*self.node).tower)[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ++                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]     --> src/base.rs:2146:28
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^---------^^^^^^^^^^
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              this raw pointer has type `*mut Node<K, V>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Tower<K, V>`
[INFO] [stdout]     --> src/base.rs:2146:28
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (&(*self.node).tower)[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ++                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]     --> src/base.rs:2115:28
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^---------^^^^^^^^^^
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              this raw pointer has type `*mut Node<K, V>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Tower<K, V>`
[INFO] [stdout]     --> src/base.rs:2115:28
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (&(*self.node).tower)[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ++                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]     --> src/base.rs:2146:28
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^---------^^^^^^^^^^
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              this raw pointer has type `*mut Node<K, V>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Tower<K, V>`
[INFO] [stdout]     --> src/base.rs:2146:28
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (&(*self.node).tower)[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ++                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling skiplist-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crossbeam_skiplist`
[INFO] [stdout]  --> tests/set.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crossbeam_skiplist::SkipSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `crossbeam_skiplist`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 1 - use crossbeam_skiplist::SkipSet;
[INFO] [stdout] 1 + use crossbeam_utils::SkipSet;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crossbeam_skiplist`
[INFO] [stdout]  --> tests/map.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crossbeam_skiplist::SkipMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `crossbeam_skiplist`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 3 - use crossbeam_skiplist::SkipMap;
[INFO] [stdout] 3 + use crossbeam_utils::SkipMap;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `skiplist-rs` (test "set") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `skiplist-rs` (test "map") due to 1 previous error
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]     --> src/base.rs:2115:28
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^---------^^^^^^^^^^
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              this raw pointer has type `*mut Node<K, V>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Tower<K, V>`
[INFO] [stdout]     --> src/base.rs:2115:28
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]      |
[INFO] [stdout] 2115 |                 let next = (&(*self.node).tower)[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ++                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]     --> src/base.rs:2146:28
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^---------^^^^^^^^^^
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              this raw pointer has type `*mut Node<K, V>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Tower<K, V>`
[INFO] [stdout]     --> src/base.rs:2146:28
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (*self.node).tower[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 let next = (&(*self.node).tower)[0].load(Ordering::Relaxed, epoch::unprotected());
[INFO] [stdout]      |                            ++                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4", kill_on_drop: false }`
[INFO] [stdout] 3efd176539059b9ab856443f57d973d54b2f870dff080f45bd6d3fda349e8be4
