[INFO] cloning repository https://github.com/davidpeklak/rust-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidpeklak/rust-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpeklak%2Frust-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpeklak%2Frust-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9db2d5ac0cfbfe409792033d26d8f4c8aaa3e872
[INFO] testing davidpeklak/rust-algorithms against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpeklak%2Frust-algorithms" "/workspace/builds/worker-116/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidpeklak/rust-algorithms on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davidpeklak/rust-algorithms
[INFO] finished tweaking git repo https://github.com/davidpeklak/rust-algorithms
[INFO] tweaked toml for git repo https://github.com/davidpeklak/rust-algorithms written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] crate git repo https://github.com/davidpeklak/rust-algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76b96fd7521ff2f1628545edd09a457c09fb63472760dc67a2c8449674870de2
[INFO] running `Command { std: "docker" "start" "-a" "76b96fd7521ff2f1628545edd09a457c09fb63472760dc67a2c8449674870de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76b96fd7521ff2f1628545edd09a457c09fb63472760dc67a2c8449674870de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b96fd7521ff2f1628545edd09a457c09fb63472760dc67a2c8449674870de2", kill_on_drop: false }`
[INFO] [stdout] 76b96fd7521ff2f1628545edd09a457c09fb63472760dc67a2c8449674870de2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9cbc7d742a048b8a11874fbc3ab998c1a79e8415f8185b0a736006976b3ee6a
[INFO] running `Command { std: "docker" "start" "-a" "a9cbc7d742a048b8a11874fbc3ab998c1a79e8415f8185b0a736006976b3ee6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling libc v0.2.41
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rand_core v0.2.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling rand v0.5.0
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=Self::Item>>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=Self::Item>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     l: &'a LinkedList<Item=T>
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:56:41
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=T>> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:65:28
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl<T> LinkedList for Box<LinkedList<Item=T>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:72:38
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn tail<'a>(&'a self) -> Option<&LinkedList<Item=T>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:88:41
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=T>> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/lib/red_black_bst_2.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         mem::replace(&mut self.top, top);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "a9cbc7d742a048b8a11874fbc3ab998c1a79e8415f8185b0a736006976b3ee6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9cbc7d742a048b8a11874fbc3ab998c1a79e8415f8185b0a736006976b3ee6a", kill_on_drop: false }`
[INFO] [stdout] a9cbc7d742a048b8a11874fbc3ab998c1a79e8415f8185b0a736006976b3ee6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e6caa660e6016d39597263ea71404754d428e593f8b9e4f0343e09c8c7e0648
[INFO] running `Command { std: "docker" "start" "-a" "2e6caa660e6016d39597263ea71404754d428e593f8b9e4f0343e09c8c7e0648", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=Self::Item>>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=Self::Item>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     l: &'a LinkedList<Item=T>
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:56:41
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=T>> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:65:28
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl<T> LinkedList for Box<LinkedList<Item=T>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:72:38
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn tail<'a>(&'a self) -> Option<&LinkedList<Item=T>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:88:41
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=T>> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/lib/red_black_bst_2.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         mem::replace(&mut self.top, top);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=Self::Item>>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=Self::Item>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     l: &'a LinkedList<Item=T>
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:56:41
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=T>> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:65:28
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl<T> LinkedList for Box<LinkedList<Item=T>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:72:38
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn tail<'a>(&'a self) -> Option<&LinkedList<Item=T>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib/linked_list.rs:88:41
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=T>> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib/linked_list.rs:134:34
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn some_linked_list() -> Box<LinkedList<Item=i32>> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=i32>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib/linked_list.rs:153:41
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn prepend_some<'a, L>(l: L) -> Box<LinkedList<Item=i32> + 'a>
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=i32> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/lib/red_black_bst_2.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         mem::replace(&mut self.top, top);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "2e6caa660e6016d39597263ea71404754d428e593f8b9e4f0343e09c8c7e0648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e6caa660e6016d39597263ea71404754d428e593f8b9e4f0343e09c8c7e0648", kill_on_drop: false }`
[INFO] [stdout] 2e6caa660e6016d39597263ea71404754d428e593f8b9e4f0343e09c8c7e0648
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 16922068fa0ff4088019cd6e97920fe2abe619342310632ea174ace1bd1693da
[INFO] running `Command { std: "docker" "start" "-a" "16922068fa0ff4088019cd6e97920fe2abe619342310632ea174ace1bd1693da", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/linked_list.rs:29:41
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=Self::Item>>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=Self::Item>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/linked_list.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     l: &'a LinkedList<Item=T>
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/linked_list.rs:56:41
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=T>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/linked_list.rs:65:28
[INFO] [stderr]    |
[INFO] [stderr] 65 | impl<T> LinkedList for Box<LinkedList<Item=T>> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/linked_list.rs:72:38
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn tail<'a>(&'a self) -> Option<&LinkedList<Item=T>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/linked_list.rs:88:41
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn tail<'a>(&'a self) -> Option<&'a LinkedList<Item=T>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/lib/red_black_bst_2.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         mem::replace(&mut self.top, top);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/linked_list.rs:134:34
[INFO] [stderr]     |
[INFO] [stderr] 134 |     fn some_linked_list() -> Box<LinkedList<Item=i32>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=i32>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/linked_list.rs:153:41
[INFO] [stderr]     |
[INFO] [stderr] 153 |     fn prepend_some<'a, L>(l: L) -> Box<LinkedList<Item=i32> + 'a>
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList<Item=i32> + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `algorithms` (lib) generated 7 warnings
[INFO] [stderr] warning: `algorithms` (lib test) generated 9 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algorithms-aff82fc552af537a)
[INFO] [stdout] 
[INFO] [stdout] running 83 tests
[INFO] [stdout] test deque::tests::add_first_and_query ... ok
[INFO] [stdout] test deque::tests::add_last_and_query ... ok
[INFO] [stdout] test deque::tests::box_to_non_null_to_box ... ok
[INFO] [stdout] test deque::tests::construct_deque_and_query ... ok
[INFO] [stdout] test deque::tests::filo_left ... ok
[INFO] [stdout] test deque::tests::filo_right ... ok
[INFO] [stdout] test deque::tests::iter ... ok
[INFO] [stdout] test deque::tests::sizes ... ok
[INFO] [stdout] test graph::tests::test_number_of_vertices ... ok
[INFO] [stdout] test graph::tests::test_number_of_edges ... ok
[INFO] [stdout] test graph_alg::tests::test_breadth_is_visted ... ok
[INFO] [stdout] test graph_alg::tests::test_depth_is_visted ... ok
[INFO] [stdout] test deque::tests::fifo_right ... ok
[INFO] [stdout] test deque::tests::fifo_left ... ok
[INFO] [stdout] test linked_list::tests::heap_construction ... ok
[INFO] [stdout] test index_ops::test::vec_length ... ok
[INFO] [stdout] test graph_alg::tests::test_breadth_path_to ... ok
[INFO] [stdout] test insertion_sort::test::small_example ... ok
[INFO] [stdout] test graph::tests::test_adj ... ok
[INFO] [stdout] test graph_alg::tests::test_depth_path_to ... ok
[INFO] [stdout] test is_sorted::test_is_sorted ... ok
[INFO] [stdout] test linked_list::tests::iter_loop ... ok
[INFO] [stdout] test linked_list::tests::iter_stack ... ok
[INFO] [stdout] test max_pq::tests::test_manual_sinking ... ok
[INFO] [stdout] test max_pq::tests::test_del_max ... ok
[INFO] [stdout] test max_pq::tests::test_heap_sort ... ok
[INFO] [stdout] test linked_list::tests::stack_construction ... ok
[INFO] [stdout] test merge_sort::test::merge_sort_is_sorted ... ok
[INFO] [stdout] test percolation::tests::new_percolation_is_full ... ok
[INFO] [stdout] test percolation::tests::open_once ... ok
[INFO] [stdout] test merge_sort::test::merge_some ... ok
[INFO] [stdout] test linked_list::tests::mixed_construction ... ok
[INFO] [stdout] test max_pq::tests::test_is_binary_heap ... ok
[INFO] [stdout] test percolation::tests::open_twice ... ok
[INFO] [stdout] test max_pq::tests::test_insert ... ok
[INFO] [stdout] test max_pq::tests::test_make_heap ... ok
[INFO] [stdout] test percolation::tests::percolate_3_s ... ok
[INFO] [stdout] test percolation::tests::percolate_1 ... ok
[INFO] [stdout] test quick_find::tests::test_3 ... ok
[INFO] [stdout] test percolation::tests::percolate_3_z ... ok
[INFO] [stdout] test quick_find::tests::test_3_c ... ok
[INFO] [stdout] test quick_sort::tests::partition_some ... ok
[INFO] [stdout] test quick_union::tests::test_3 ... ok
[INFO] [stdout] test quick_union::tests::test_3_c ... ok
[INFO] [stdout] test red_black_bst_2::tests::multiple_insertion_results_in_bst ... ok
[INFO] [stdout] test quick_sort::tests::three_way_partition_some ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_black_depth ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_color_flip ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_big_tree ... ok
[INFO] [stdout] test quick_sort::tests::test_quick_select ... ok
[INFO] [stdout] test quick_sort::tests::quick_sort_some ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_from_iter ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_insert_2 ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_has_consecutive_red_links ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_rotate_right ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_size ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_total_depth ... ok
[INFO] [stdout] test selection_sort::test::vec_swap ... ok
[INFO] [stdout] test shell_sort::test::h_generation ... ok
[INFO] [stdout] test shell_sort::test::handwritten ... ok
[INFO] [stdout] test step::test::len ... ok
[INFO] [stdout] test shell_sort::test::sorted_step ... ok
[INFO] [stdout] test step::test::index ... ok
[INFO] [stdout] test step::test::index_offset ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_insert_1 ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_rotate_left ... ok
[INFO] [stdout] test weighted_quick_union::tests::test_3 ... ok
[INFO] [stdout] test weighted_quick_union::tests::test_3_c ... ok
[INFO] [stdout] test step::test::len_offset ... ok
[INFO] [stdout] test shell_sort::test::example_from_course ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_insert_3 ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_contains ... ok
[INFO] [stdout] test shell_sort::test::small_example ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_iter ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_has_right_leaning_red_links ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_into_iter ... ok
[INFO] [stdout] test step::test::index_mut ... ok
[INFO] [stdout] test quick_sort::tests::three_way_quick_sort_some ... ok
[INFO] [stdout] test red_black_bst_2::tests::test_is_bst ... ok
[INFO] [stdout] test merge_sort::test::merge_sort_some ... ok
[INFO] [stdout] test insertion_sort::test::insertion_sort_some ... ok
[INFO] [stdout] test selection_sort::test::selection_sort_some ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algorithms-7f4acd2d047f443e)
[INFO] [stdout] test shell_sort::test::shell_sort_some ... ok
[INFO] [stderr]      Running tests/performance_deque.rs (/opt/rustwide/target/debug/deps/performance_deque-b02942c116531f22)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 83 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/performance_heap_sort.rs (/opt/rustwide/target/debug/deps/performance_heap_sort-ecf4f3e1212a2f91)
[INFO] [stdout] test test_performance ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.69s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/performance_insertion_sort.rs (/opt/rustwide/target/debug/deps/performance_insertion_sort-9589b7557e56b378)
[INFO] [stdout] test test_performance ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.56s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_performance ... FAILED
[INFO] [stdout] test test_performance_partially_sorted ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_performance stdout ----
[INFO] [stdout] Size: 1, elapsed milliseconds: 0
[INFO] [stdout] Size: 2, elapsed milliseconds: 0
[INFO] [stdout] Size: 4, elapsed milliseconds: 0
[INFO] [stdout] Size: 8, elapsed milliseconds: 0
[INFO] [stdout] Size: 16, elapsed milliseconds: 0
[INFO] [stdout] Size: 32, elapsed milliseconds: 0
[INFO] [stdout] Size: 64, elapsed milliseconds: 0
[INFO] [stdout] Size: 128, elapsed milliseconds: 1
[INFO] [stdout] Size: 256, elapsed milliseconds: 7
[INFO] [stdout] Ratio: 7
[INFO] [stdout] Size: 512, elapsed milliseconds: 12
[INFO] [stdout] Ratio: 1.7142857142857142
[INFO] [stdout] Size: 1024, elapsed milliseconds: 53
[INFO] [stdout] Ratio: 4.416666666666667
[INFO] [stdout] Size: 2048, elapsed milliseconds: 198
[INFO] [stdout] Ratio: 3.7358490566037736
[INFO] [stdout] Size: 4096, elapsed milliseconds: 836
[INFO] [stdout] Ratio: 4.222222222222222
[INFO] [stdout] Size: 8192, elapsed milliseconds: 3258
[INFO] [stdout] Ratio: 3.897129186602871
[INFO] [stderr] error: test failed, to rerun pass '--test performance_insertion_sort'
[INFO] [stdout] Size: 16384, elapsed milliseconds: 10193
[INFO] [stdout] Ratio: 3.128606507059546
[INFO] [stdout] Factor insertion sort = 3.128606507059546
[INFO] [stdout] thread 'test_performance' panicked at 'assertion failed: factor > 3.5', tests/performance_insertion_sort.rs:32:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x555f1844d150 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x555f1844d150 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x555f1844d150 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x555f1844d150 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x555f1846f97c - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x555f18449fd5 - std::io::Write::write_fmt::h5f34a676f60246b5
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stdout]    6:     0x555f1844f2cb - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x555f1844f2cb - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x555f1844f2cb - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x555f1844eddc - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x555f1844f994 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x555f1844f447 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:517:13
[INFO] [stdout]   12:     0x555f1844d62c - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x555f1844f3d9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x555f183ce3b1 - core::panicking::panic_fmt::hf9de31d4acbce4db
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x555f183ce2fd - core::panicking::panic::h8a6bc58a21c6c095
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/panicking.rs:50:5
[INFO] [stdout]   16:     0x555f183d061f - performance_insertion_sort::test_performance::hd8f48585dee4eda1
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/performance_insertion_sort.rs:32:5
[INFO] [stdout]   17:     0x555f183d052a - performance_insertion_sort::test_performance::{{closure}}::h97ca7e94f03e526e
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/performance_insertion_sort.rs:28:1
[INFO] [stdout]   18:     0x555f183d133e - core::ops::function::FnOnce::call_once::hfb4e113f4b7b8a35
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   19:     0x555f18404613 - core::ops::function::FnOnce::call_once::hbb52c4519d3137b0
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x555f18404613 - test::__rust_begin_short_backtrace::h86fe3a2a5a5121af
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:578:5
[INFO] [stdout]   21:     0x555f184030c8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfd956bc3d57399be
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   22:     0x555f184030c8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40dc93e0ddb5938a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   23:     0x555f184030c8 - std::panicking::try::do_call::h90d07750cb47c562
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   24:     0x555f184030c8 - std::panicking::try::h063c84733ad2a629
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   25:     0x555f184030c8 - std::panic::catch_unwind::h0c464836a84e7c08
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   26:     0x555f184030c8 - test::run_test_in_process::h5cb06ef620b157fc
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:601:18
[INFO] [stdout]   27:     0x555f184030c8 - test::run_test::run_test_inner::{{closure}}::h76f677f4b93f9828
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:493:39
[INFO] [stdout]   28:     0x555f183d185d - test::run_test::run_test_inner::{{closure}}::h366d01fe04f4d67a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:520:37
[INFO] [stdout]   29:     0x555f183d185d - std::sys_common::backtrace::__rust_begin_short_backtrace::h7dfa0de4eb395af2
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   30:     0x555f183d6028 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf0a74bb58798037f
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   31:     0x555f183d6028 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb024e854818586ac
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   32:     0x555f183d6028 - std::panicking::try::do_call::hb2dd9f1d0d48e41d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   33:     0x555f183d6028 - std::panicking::try::h4717ae7bac8b2bf3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   34:     0x555f183d6028 - std::panic::catch_unwind::h0dc8a061326ce8d8
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   35:     0x555f183d6028 - std::thread::Builder::spawn_unchecked::{{closure}}::haa369e2d6fd00aa1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   36:     0x555f183d6028 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h36dcf3de8b056f17
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   37:     0x555f18454567 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   38:     0x555f18454567 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   39:     0x555f18454567 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stdout]   40:     0x7f33960c7609 - start_thread
[INFO] [stdout]   41:     0x7f3395e99293 - clone
[INFO] [stdout]   42:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_performance
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 16.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "16922068fa0ff4088019cd6e97920fe2abe619342310632ea174ace1bd1693da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16922068fa0ff4088019cd6e97920fe2abe619342310632ea174ace1bd1693da", kill_on_drop: false }`
[INFO] [stdout] 16922068fa0ff4088019cd6e97920fe2abe619342310632ea174ace1bd1693da
