[INFO] cloning repository https://github.com/ANtlord/system_ladder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ANtlord/system_ladder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FANtlord%2Fsystem_ladder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FANtlord%2Fsystem_ladder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44b3e901bcfed342ce69b974defef244f8170d6d
[INFO] testing ANtlord/system_ladder against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FANtlord%2Fsystem_ladder" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ANtlord/system_ladder
[INFO] finished tweaking git repo https://github.com/ANtlord/system_ladder
[INFO] tweaked toml for git repo https://github.com/ANtlord/system_ladder written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ANtlord/system_ladder on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ANtlord/system_ladder 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1925d74e00ec20c8c1f49a8a395e9e78589e951ca832cef86d1bd807828ff8d5
[INFO] running `Command { std: "docker" "start" "-a" "1925d74e00ec20c8c1f49a8a395e9e78589e951ca832cef86d1bd807828ff8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1925d74e00ec20c8c1f49a8a395e9e78589e951ca832cef86d1bd807828ff8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1925d74e00ec20c8c1f49a8a395e9e78589e951ca832cef86d1bd807828ff8d5", kill_on_drop: false }`
[INFO] [stdout] 1925d74e00ec20c8c1f49a8a395e9e78589e951ca832cef86d1bd807828ff8d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39c8b69095849a843635f47d67499e375b1defca3f31f58a8bf2c0ea7eb037f6
[INFO] running `Command { std: "docker" "start" "-a" "39c8b69095849a843635f47d67499e375b1defca3f31f58a8bf2c0ea7eb037f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling system_ladder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/list/mod.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn cursor(&mut self) -> Cursor<T> {
[INFO] [stdout]    |                   ^^^^^^^^^     --------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn cursor(&mut self) -> Cursor<'_, T> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/list/mod.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]    |                 ^^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/container/heap/indexed_heap.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         drop(index);
[INFO] [stdout]    |         ^^^^^-----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 93 -         drop(index);
[INFO] [stdout] 93 +         let _ = index;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/graph/shortest_path/dijkstra.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn path_to(&self, target: usize) -> EdgeIter {
[INFO] [stdout]    |                ^^^^^                    -------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn path_to(&self, target: usize) -> EdgeIter<'_> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/graph/shortest_path/monotonic.rs:139:16
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn path_to(&self, vertex: usize) -> EdgeLinkIter {
[INFO] [stdout]     |                ^^^^^                    ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                |
[INFO] [stdout]     |                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn path_to(&self, vertex: usize) -> EdgeLinkIter<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/graph/shortest_path/kshortestpaths.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn path_to(&self, vertex: usize, path_order: usize) -> KShortestPathsIter {
[INFO] [stdout]    |                ^^^^^ this lifetime flows to the output     ------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn path_to(&self, vertex: usize, path_order: usize) -> KShortestPathsIter<'_> {
[INFO] [stdout]    |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "39c8b69095849a843635f47d67499e375b1defca3f31f58a8bf2c0ea7eb037f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39c8b69095849a843635f47d67499e375b1defca3f31f58a8bf2c0ea7eb037f6", kill_on_drop: false }`
[INFO] [stdout] 39c8b69095849a843635f47d67499e375b1defca3f31f58a8bf2c0ea7eb037f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dcd0a7b610cb7ea5e7b6e8dde3fb7bcf63bfc71697c1f19458d5a57baa80a3f
[INFO] running `Command { std: "docker" "start" "-a" "5dcd0a7b610cb7ea5e7b6e8dde3fb7bcf63bfc71697c1f19458d5a57baa80a3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling system_ladder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `suffixtree::Node<'_>` doesn't implement `Debug`
[INFO] [stdout]    --> src/str/suffixtree.rs:460:28
[INFO] [stdout]     |
[INFO] [stdout] 460 |                     return dbg!(left.as_ref()) == dbg!(right.as_ref());
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^ the trait `Debug` is not implemented for `suffixtree::Node<'_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: add `#[derive(Debug)]` to `suffixtree::Node<'_>` or manually `impl Debug for suffixtree::Node<'_>`
[INFO] [stdout]     = note: this error originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `suffixtree::Node<'_>` doesn't implement `Debug`
[INFO] [stdout]    --> src/str/suffixtree.rs:460:51
[INFO] [stdout]     |
[INFO] [stdout] 460 |                     return dbg!(left.as_ref()) == dbg!(right.as_ref());
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^ the trait `Debug` is not implemented for `suffixtree::Node<'_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: add `#[derive(Debug)]` to `suffixtree::Node<'_>` or manually `impl Debug for suffixtree::Node<'_>`
[INFO] [stdout]     = note: this error originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `suffixtree::Node<'_>` doesn't implement `Debug`
[INFO] [stdout]    --> src/str/suffixtree.rs:496:13
[INFO] [stdout]     |
[INFO] [stdout] 496 |             assert_eq!(actual[i].0, expected[i].0, "key: {}", key as char);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Debug` is not implemented for `suffixtree::Node<'_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: add `#[derive(Debug)]` to `suffixtree::Node<'_>` or manually `impl Debug for suffixtree::Node<'_>`
[INFO] [stdout]     = help: the trait `Debug` is implemented for `Option<T>`
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `suffixtree::Node<'_>` doesn't implement `Debug`
[INFO] [stdout]    --> src/str/suffixtree.rs:496:13
[INFO] [stdout]     |
[INFO] [stdout] 496 |             assert_eq!(actual[i].0, expected[i].0, "key: {}", key as char);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Debug` is not implemented for `suffixtree::Node<'_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: add `#[derive(Debug)]` to `suffixtree::Node<'_>` or manually `impl Debug for suffixtree::Node<'_>`
[INFO] [stdout]     = help: the trait `Debug` is implemented for `Option<T>`
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `system_ladder` (bin "system_ladder" test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "5dcd0a7b610cb7ea5e7b6e8dde3fb7bcf63bfc71697c1f19458d5a57baa80a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dcd0a7b610cb7ea5e7b6e8dde3fb7bcf63bfc71697c1f19458d5a57baa80a3f", kill_on_drop: false }`
[INFO] [stdout] 5dcd0a7b610cb7ea5e7b6e8dde3fb7bcf63bfc71697c1f19458d5a57baa80a3f
