[INFO] cloning repository https://github.com/tesujimath/life
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tesujimath/life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftesujimath%2Flife", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftesujimath%2Flife'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65696f79a0a7fe6585f0af9118c261bc72d53d3f
[INFO] checking tesujimath/life against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftesujimath%2Flife" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tesujimath/life
[INFO] finished tweaking git repo https://github.com/tesujimath/life
[INFO] tweaked toml for git repo https://github.com/tesujimath/life written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tesujimath/life on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tesujimath/life 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_hex v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bd9680a1a3d458165a20c2ccd41a0325810d545d96f832fa2d711fb378ca26c
[INFO] running `Command { std: "docker" "start" "-a" "3bd9680a1a3d458165a20c2ccd41a0325810d545d96f832fa2d711fb378ca26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bd9680a1a3d458165a20c2ccd41a0325810d545d96f832fa2d711fb378ca26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bd9680a1a3d458165a20c2ccd41a0325810d545d96f832fa2d711fb378ca26c", kill_on_drop: false }`
[INFO] [stdout] 3bd9680a1a3d458165a20c2ccd41a0325810d545d96f832fa2d711fb378ca26c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd8b705d824f90e3cd527a85149499a32e0d011a70f06aa890746f8c73b4e392
[INFO] running `Command { std: "docker" "start" "-a" "bd8b705d824f90e3cd527a85149499a32e0d011a70f06aa890746f8c73b4e392", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking assert_hex v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cartesian.rs:77:28
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn rows_enumerator(&self) -> ContigEnumerator<Idx, Contig<Idx, T>> {
[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] 77 |     pub fn rows_enumerator(&self) -> ContigEnumerator<'_, Idx, Contig<Idx, T>> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cartesian.rs:81:37
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn neighbourhood_enumerator(&self) -> CartesianContigNeighbourhoodEnumerator<Idx, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn neighbourhood_enumerator(&self) -> CartesianContigNeighbourhoodEnumerator<'_, Idx, T> {
[INFO] [stdout]    |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/contig.rs:101:26
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn get_neighbourhood(&self, i: Idx) -> Neighbourhood<Idx, &T> {
[INFO] [stdout]     |                          ^^^^^             ----------------------
[INFO] [stdout]     |                          |                 |                  |
[INFO] [stdout]     |                          |                 |                  the same lifetime is elided here
[INFO] [stdout]     |                          |                 the same lifetime is hidden here
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn get_neighbourhood(&self, i: Idx) -> Neighbourhood<'_, Idx, &T> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/contig.rs:319:23
[INFO] [stdout]     |
[INFO] [stdout] 319 |     pub fn enumerator(&self) -> ContigEnumerator<Idx, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 319 |     pub fn enumerator(&self) -> ContigEnumerator<'_, Idx, T> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/contig.rs:325:37
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn neighbourhood_enumerator(&self) -> ContigNeighbourhoodEnumerator<Idx, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn neighbourhood_enumerator(&self) -> ContigNeighbourhoodEnumerator<'_, Idx, T> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]    --> src/playfield.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |             let p = &packed as *const T as *mut H;
[INFO] [stdout]     |                     ----------------------------- casting happened here
[INFO] [stdout] 116 |             *p = pair.0;
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `life` (bin "life") due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cartesian.rs:77:28
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn rows_enumerator(&self) -> ContigEnumerator<Idx, Contig<Idx, T>> {
[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] 77 |     pub fn rows_enumerator(&self) -> ContigEnumerator<'_, Idx, Contig<Idx, T>> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cartesian.rs:81:37
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn neighbourhood_enumerator(&self) -> CartesianContigNeighbourhoodEnumerator<Idx, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn neighbourhood_enumerator(&self) -> CartesianContigNeighbourhoodEnumerator<'_, Idx, T> {
[INFO] [stdout]    |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/contig.rs:101:26
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn get_neighbourhood(&self, i: Idx) -> Neighbourhood<Idx, &T> {
[INFO] [stdout]     |                          ^^^^^             ----------------------
[INFO] [stdout]     |                          |                 |                  |
[INFO] [stdout]     |                          |                 |                  the same lifetime is elided here
[INFO] [stdout]     |                          |                 the same lifetime is hidden here
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn get_neighbourhood(&self, i: Idx) -> Neighbourhood<'_, Idx, &T> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/contig.rs:319:23
[INFO] [stdout]     |
[INFO] [stdout] 319 |     pub fn enumerator(&self) -> ContigEnumerator<Idx, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 319 |     pub fn enumerator(&self) -> ContigEnumerator<'_, Idx, T> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/contig.rs:325:37
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn neighbourhood_enumerator(&self) -> ContigNeighbourhoodEnumerator<Idx, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn neighbourhood_enumerator(&self) -> ContigNeighbourhoodEnumerator<'_, Idx, T> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/contig/tests.rs:196:29
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn enumerator_as_vec(c: &Contig<i32, u8>) -> Vec<Neighbourhood<i32, &u8>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^         -----------------------
[INFO] [stdout]     |                             |                        |                  |
[INFO] [stdout]     |                             |                        |                  the same lifetime is elided here
[INFO] [stdout]     |                             |                        the same lifetime is hidden here
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn enumerator_as_vec(c: &Contig<i32, u8>) -> Vec<Neighbourhood<'_, i32, &u8>> {
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]    --> src/playfield.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |             let p = &packed as *const T as *mut H;
[INFO] [stdout]     |                     ----------------------------- casting happened here
[INFO] [stdout] 116 |             *p = pair.0;
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `life` (bin "life" test) due to 1 previous error; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bd8b705d824f90e3cd527a85149499a32e0d011a70f06aa890746f8c73b4e392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8b705d824f90e3cd527a85149499a32e0d011a70f06aa890746f8c73b4e392", kill_on_drop: false }`
[INFO] [stdout] bd8b705d824f90e3cd527a85149499a32e0d011a70f06aa890746f8c73b4e392
