[INFO] cloning repository https://github.com/thomasdelrue/rusty-mazes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomasdelrue/rusty-mazes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasdelrue%2Frusty-mazes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasdelrue%2Frusty-mazes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa5c1a29e24985e6db66afbb07c6070a6cfb04d2
[INFO] testing thomasdelrue/rusty-mazes against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasdelrue%2Frusty-mazes" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thomasdelrue/rusty-mazes
[INFO] finished tweaking git repo https://github.com/thomasdelrue/rusty-mazes
[INFO] tweaked toml for git repo https://github.com/thomasdelrue/rusty-mazes written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thomasdelrue/rusty-mazes on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thomasdelrue/rusty-mazes 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" "+9f93af291970322f4f1c6315ccde4d7078201159" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_hc v0.3.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.10
[INFO] [stderr]   Downloaded rand v0.8.3
[INFO] [stderr]   Downloaded rand_core v0.6.2
[INFO] [stderr]   Downloaded rand_chacha v0.3.0
[INFO] [stderr]   Downloaded libc v0.2.95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b08e941eee1a62874b8f79251ddc31f198e42d6cf8ba40cd4401f904f6609a
[INFO] running `Command { std: "docker" "start" "-a" "71b08e941eee1a62874b8f79251ddc31f198e42d6cf8ba40cd4401f904f6609a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b08e941eee1a62874b8f79251ddc31f198e42d6cf8ba40cd4401f904f6609a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b08e941eee1a62874b8f79251ddc31f198e42d6cf8ba40cd4401f904f6609a", kill_on_drop: false }`
[INFO] [stdout] 71b08e941eee1a62874b8f79251ddc31f198e42d6cf8ba40cd4401f904f6609a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c1db64f699315355b96e1dc10571b88ad38c3a082a8c41cf3941fe078ebf559
[INFO] running `Command { std: "docker" "start" "-a" "9c1db64f699315355b96e1dc10571b88ad38c3a082a8c41cf3941fe078ebf559", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling mazes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `links` is never read
[INFO] [stdout]  --> src/cell.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Cell {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     links: HashMap<(u8, u8), bool>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pos`, `link`, `unlink`, `links`, and `is_linked_to` are never used
[INFO] [stdout]   --> src/cell.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Cell {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn pos(&self) -> (u8, u8) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn link(&mut self, other: &mut Cell, bidi: bool) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn unlink(&mut self, other: &mut Cell, bidi: bool) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn links(&self) -> hash_map::Keys<(u8, u8), bool> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn is_linked_to(&self, other: &Cell) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `random_cell` and `size` are never used
[INFO] [stdout]   --> src/grid.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Grid {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn random_cell(&self) -> &Cell {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn size(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn links(&self) -> hash_map::Keys<(u8, u8), bool> {
[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] 41 |     pub fn links(&self) -> hash_map::Keys<'_, (u8, u8), bool> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "9c1db64f699315355b96e1dc10571b88ad38c3a082a8c41cf3941fe078ebf559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c1db64f699315355b96e1dc10571b88ad38c3a082a8c41cf3941fe078ebf559", kill_on_drop: false }`
[INFO] [stdout] 9c1db64f699315355b96e1dc10571b88ad38c3a082a8c41cf3941fe078ebf559
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8566208d0e8005843f92c5dad07bf9c7425e5177a2553c22e698216716847e14
[INFO] running `Command { std: "docker" "start" "-a" "8566208d0e8005843f92c5dad07bf9c7425e5177a2553c22e698216716847e14", kill_on_drop: false }`
[INFO] [stderr]    Compiling mazes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `unlink` and `links` are never used
[INFO] [stdout]   --> src/cell.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Cell {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn unlink(&mut self, other: &mut Cell, bidi: bool) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn links(&self) -> hash_map::Keys<(u8, u8), bool> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/grid.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Grid {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn size(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn links(&self) -> hash_map::Keys<(u8, u8), bool> {
[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] 41 |     pub fn links(&self) -> hash_map::Keys<'_, (u8, u8), bool> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "8566208d0e8005843f92c5dad07bf9c7425e5177a2553c22e698216716847e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8566208d0e8005843f92c5dad07bf9c7425e5177a2553c22e698216716847e14", kill_on_drop: false }`
[INFO] [stdout] 8566208d0e8005843f92c5dad07bf9c7425e5177a2553c22e698216716847e14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] decc9b15f77286c6a69225f2e9e2ad9c9fc72bd537698ef25df6bd027350400b
[INFO] running `Command { std: "docker" "start" "-a" "decc9b15f77286c6a69225f2e9e2ad9c9fc72bd537698ef25df6bd027350400b", kill_on_drop: false }`
[INFO] [stderr] warning: methods `unlink` and `links` are never used
[INFO] [stderr]   --> src/cell.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl Cell {
[INFO] [stderr]    | --------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 34 |     pub fn unlink(&mut self, other: &mut Cell, bidi: bool) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 41 |     pub fn links(&self) -> hash_map::Keys<(u8, u8), bool> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `size` is never used
[INFO] [stderr]   --> src/grid.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl Grid {
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 36 |     pub fn size(&self) -> usize {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/cell.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn links(&self) -> hash_map::Keys<(u8, u8), bool> {
[INFO] [stderr]    |                  ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn links(&self) -> hash_map::Keys<'_, (u8, u8), bool> {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mazes` (bin "mazes" test) generated 3 warnings (run `cargo fix --bin "mazes" -p mazes --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mazes-c3a8ebb9c91b2add)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test cell::tests::test_bidi_link ... ok
[INFO] [stdout] test cell::tests::test_pos ... ok
[INFO] [stdout] test cell::tests::test_links ... ok
[INFO] [stdout] test grid::tests::test_random_cell ... ok
[INFO] [stdout] test cell::tests::test_is_linked_to ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "decc9b15f77286c6a69225f2e9e2ad9c9fc72bd537698ef25df6bd027350400b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "decc9b15f77286c6a69225f2e9e2ad9c9fc72bd537698ef25df6bd027350400b", kill_on_drop: false }`
[INFO] [stdout] decc9b15f77286c6a69225f2e9e2ad9c9fc72bd537698ef25df6bd027350400b
