[INFO] updating cached repository francescofranze/gc3c
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/francescofranze/gc3c
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/francescofranze/gc3c" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/francescofranze/gc3c"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/francescofranze/gc3c'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/francescofranze/gc3c" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/francescofranze/gc3c"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/francescofranze/gc3c'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 13e0f9aff7e04ab068230ec0d8d7c77b2b11e325
[INFO] sha for GitHub repo francescofranze/gc3c: 13e0f9aff7e04ab068230ec0d8d7c77b2b11e325
[INFO] validating manifest of francescofranze/gc3c on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of francescofranze/gc3c on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing francescofranze/gc3c
[INFO] finished frobbing francescofranze/gc3c
[INFO] frobbed toml for francescofranze/gc3c written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/francescofranze/gc3c/Cargo.toml
[INFO] started frobbing francescofranze/gc3c
[INFO] finished frobbing francescofranze/gc3c
[INFO] frobbed toml for francescofranze/gc3c written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/francescofranze/gc3c/Cargo.toml
[INFO] crate francescofranze/gc3c already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking francescofranze/gc3c against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/francescofranze/gc3c:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ab926df5676e6b9036073b363f1922d81d2a87b78d0514df6fa6210365c923ed
[INFO] running `"docker" "start" "-a" "ab926df5676e6b9036073b363f1922d81d2a87b78d0514df6fa6210365c923ed"`
[INFO] [stderr]     Checking gc3c v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:196:20
[INFO] [stderr]     |
[INFO] [stderr] 196 |     whites: Vec<Gc<Mark>>,
[INFO] [stderr]     |                    ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:197:19
[INFO] [stderr]     |
[INFO] [stderr] 197 |     greys: Vec<Gc<Mark>>,
[INFO] [stderr]     |                   ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:198:20
[INFO] [stderr]     |
[INFO] [stderr] 198 |     blacks: Vec<Gc<Mark>>,
[INFO] [stderr]     |                    ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:199:19
[INFO] [stderr]     |
[INFO] [stderr] 199 |     roots: Vec<Gc<Mark>>,
[INFO] [stderr]     |                   ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:229:33
[INFO] [stderr]     |
[INFO] [stderr] 229 |     fn movec(&mut self, obj: Gc<Mark>, color: GcColor) {
[INFO] [stderr]     |                                 ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:237:35
[INFO] [stderr]     |
[INFO] [stderr] 237 |     fn remove(&mut self, obj: &Gc<Mark>) {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:268:31
[INFO] [stderr]     |
[INFO] [stderr] 268 |     fn add(&mut self, obj: Gc<Mark>, color: GcColor) {
[INFO] [stderr]     |                               ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:302:34
[INFO] [stderr]     |
[INFO] [stderr] 302 |     fn mark_1(&mut self, obj: Gc<Mark>) {
[INFO] [stderr]     |                                  ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:308:37
[INFO] [stderr]     |
[INFO] [stderr] 308 |     fn mark_grey(&mut self, obj: Gc<Mark>) {
[INFO] [stderr]     |                                     ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:358:36
[INFO] [stderr]     |
[INFO] [stderr] 358 |     pub fn add_root(&self, obj: Gc<Mark>) {
[INFO] [stderr]     |                                    ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:367:35
[INFO] [stderr]     |
[INFO] [stderr] 367 |     pub fn rm_root(&self, obj: Gc<Mark>) {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:397:33
[INFO] [stderr]     |
[INFO] [stderr] 397 |     pub fn new_ref(&self, o: Gc<Mark>, robj: Gc<Mark>) {
[INFO] [stderr]     |                                 ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:397:49
[INFO] [stderr]     |
[INFO] [stderr] 397 |     pub fn new_ref(&self, o: Gc<Mark>, robj: Gc<Mark>) {
[INFO] [stderr]     |                                                 ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:453:31
[INFO] [stderr]     |
[INFO] [stderr] 453 |         let mut it = Vec::<Gc<Mark>>::new();
[INFO] [stderr]     |                               ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:503:26
[INFO] [stderr]     |
[INFO] [stderr] 503 |     pub fn new_ref(o: Gc<Mark>, r: Gc<Mark>) {
[INFO] [stderr]     |                          ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:503:39
[INFO] [stderr]     |
[INFO] [stderr] 503 |     pub fn new_ref(o: Gc<Mark>, r: Gc<Mark>) {
[INFO] [stderr]     |                                       ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:528:27
[INFO] [stderr]     |
[INFO] [stderr] 528 |     pub fn add_root(o: Gc<Mark>) {
[INFO] [stderr]     |                           ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:534:26
[INFO] [stderr]     |
[INFO] [stderr] 534 |     pub fn rm_root(o: Gc<Mark>) {
[INFO] [stderr]     |                          ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:196:20
[INFO] [stderr]     |
[INFO] [stderr] 196 |     whites: Vec<Gc<Mark>>,
[INFO] [stderr]     |                    ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:197:19
[INFO] [stderr]     |
[INFO] [stderr] 197 |     greys: Vec<Gc<Mark>>,
[INFO] [stderr]     |                   ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:198:20
[INFO] [stderr]     |
[INFO] [stderr] 198 |     blacks: Vec<Gc<Mark>>,
[INFO] [stderr]     |                    ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:199:19
[INFO] [stderr]     |
[INFO] [stderr] 199 |     roots: Vec<Gc<Mark>>,
[INFO] [stderr]     |                   ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:229:33
[INFO] [stderr]     |
[INFO] [stderr] 229 |     fn movec(&mut self, obj: Gc<Mark>, color: GcColor) {
[INFO] [stderr]     |                                 ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:237:35
[INFO] [stderr]     |
[INFO] [stderr] 237 |     fn remove(&mut self, obj: &Gc<Mark>) {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:268:31
[INFO] [stderr]     |
[INFO] [stderr] 268 |     fn add(&mut self, obj: Gc<Mark>, color: GcColor) {
[INFO] [stderr]     |                               ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:302:34
[INFO] [stderr]     |
[INFO] [stderr] 302 |     fn mark_1(&mut self, obj: Gc<Mark>) {
[INFO] [stderr]     |                                  ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:308:37
[INFO] [stderr]     |
[INFO] [stderr] 308 |     fn mark_grey(&mut self, obj: Gc<Mark>) {
[INFO] [stderr]     |                                     ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:358:36
[INFO] [stderr]     |
[INFO] [stderr] 358 |     pub fn add_root(&self, obj: Gc<Mark>) {
[INFO] [stderr]     |                                    ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:367:35
[INFO] [stderr]     |
[INFO] [stderr] 367 |     pub fn rm_root(&self, obj: Gc<Mark>) {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:397:33
[INFO] [stderr]     |
[INFO] [stderr] 397 |     pub fn new_ref(&self, o: Gc<Mark>, robj: Gc<Mark>) {
[INFO] [stderr]     |                                 ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:397:49
[INFO] [stderr]     |
[INFO] [stderr] 397 |     pub fn new_ref(&self, o: Gc<Mark>, robj: Gc<Mark>) {
[INFO] [stderr]     |                                                 ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:453:31
[INFO] [stderr]     |
[INFO] [stderr] 453 |         let mut it = Vec::<Gc<Mark>>::new();
[INFO] [stderr]     |                               ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:503:26
[INFO] [stderr]     |
[INFO] [stderr] 503 |     pub fn new_ref(o: Gc<Mark>, r: Gc<Mark>) {
[INFO] [stderr]     |                          ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:503:39
[INFO] [stderr]     |
[INFO] [stderr] 503 |     pub fn new_ref(o: Gc<Mark>, r: Gc<Mark>) {
[INFO] [stderr]     |                                       ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:528:27
[INFO] [stderr]     |
[INFO] [stderr] 528 |     pub fn add_root(o: Gc<Mark>) {
[INFO] [stderr]     |                           ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:534:26
[INFO] [stderr]     |
[INFO] [stderr] 534 |     pub fn rm_root(o: Gc<Mark>) {
[INFO] [stderr]     |                          ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:601:42
[INFO] [stderr]     |
[INFO] [stderr] 601 |     fn assert_is_white(gc: &GcEnv, o: Gc<Mark>) {
[INFO] [stderr]     |                                          ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:607:42
[INFO] [stderr]     |
[INFO] [stderr] 607 |     fn assert_is_black(gc: &GcEnv, o: Gc<Mark>) {
[INFO] [stderr]     |                                          ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:613:41
[INFO] [stderr]     |
[INFO] [stderr] 613 |     fn assert_is_grey(gc: &GcEnv, o: Gc<Mark>) {
[INFO] [stderr]     |                                         ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:618:42
[INFO] [stderr]     |
[INFO] [stderr] 618 |     fn assert_released(gc: &GcEnv, o: Gc<Mark>) {
[INFO] [stderr]     |                                          ^^^^ help: use `dyn`: `dyn Mark`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(alloc)]
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(alloc)]
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "ab926df5676e6b9036073b363f1922d81d2a87b78d0514df6fa6210365c923ed"`
[INFO] running `"docker" "rm" "-f" "ab926df5676e6b9036073b363f1922d81d2a87b78d0514df6fa6210365c923ed"`
[INFO] [stdout] ab926df5676e6b9036073b363f1922d81d2a87b78d0514df6fa6210365c923ed