[INFO] crate jobsteal 0.5.1 is already in cache
[INFO] extracting crate jobsteal 0.5.1 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/jobsteal/0.5.1
[INFO] extracting crate jobsteal 0.5.1 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/jobsteal/0.5.1
[INFO] validating manifest of jobsteal-0.5.1 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 jobsteal-0.5.1 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 jobsteal-0.5.1
[INFO] finished frobbing jobsteal-0.5.1
[INFO] frobbed toml for jobsteal-0.5.1 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/jobsteal/0.5.1/Cargo.toml
[INFO] started frobbing jobsteal-0.5.1
[INFO] finished frobbing jobsteal-0.5.1
[INFO] frobbed toml for jobsteal-0.5.1 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/jobsteal/0.5.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 jobsteal-0.5.1 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/jobsteal/0.5.1:/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] 956ce728cb52df2f17b37f6cc31ba071ffba07e6ab87f1d61b35fe20905c8fc7
[INFO] running `"docker" "start" "-a" "956ce728cb52df2f17b37f6cc31ba071ffba07e6ab87f1d61b35fe20905c8fc7"`
[INFO] [stderr]     Checking jobsteal v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/job.rs:63:14
[INFO] [stderr]    |
[INFO] [stderr] 63 |     Heap(Box<Thunk>),
[INFO] [stderr]    |              ^^^^^ help: use `dyn`: `dyn Thunk`
[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/job.rs:88:34
[INFO] [stderr]    |
[INFO] [stderr] 88 |             let static_code: Box<Thunk> = unsafe { mem::transmute(Box::new(code) as Box<Thunk + 'a>) };
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn Thunk`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/job.rs:88:89
[INFO] [stderr]    |
[INFO] [stderr] 88 |             let static_code: Box<Thunk> = unsafe { mem::transmute(Box::new(code) as Box<Thunk + 'a>) };
[INFO] [stderr]    |                                                                                         ^^^^^^^^^^ help: use `dyn`: `dyn Thunk + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/job.rs:101:31
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let fat_ptr: *mut Thunk = code_ptr;
[INFO] [stderr]     |                               ^^^^^ help: use `dyn`: `dyn Thunk`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/job.rs:129:36
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let code_ptr: *mut Thunk = mem::transmute(t_obj);
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Thunk`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/job.rs:63:14
[INFO] [stderr]    |
[INFO] [stderr] 63 |     Heap(Box<Thunk>),
[INFO] [stderr]    |              ^^^^^ help: use `dyn`: `dyn Thunk`
[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/job.rs:88:34
[INFO] [stderr]    |
[INFO] [stderr] 88 |             let static_code: Box<Thunk> = unsafe { mem::transmute(Box::new(code) as Box<Thunk + 'a>) };
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn Thunk`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/job.rs:88:89
[INFO] [stderr]    |
[INFO] [stderr] 88 |             let static_code: Box<Thunk> = unsafe { mem::transmute(Box::new(code) as Box<Thunk + 'a>) };
[INFO] [stderr]    |                                                                                         ^^^^^^^^^^ help: use `dyn`: `dyn Thunk + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/job.rs:101:31
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let fat_ptr: *mut Thunk = code_ptr;
[INFO] [stderr]     |                               ^^^^^ help: use `dyn`: `dyn Thunk`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/job.rs:129:36
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let code_ptr: *mut Thunk = mem::transmute(t_obj);
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Thunk`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arena.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut buf = self.buf.get();
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/arena.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut buf = self.buf.get();
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `"docker" "inspect" "956ce728cb52df2f17b37f6cc31ba071ffba07e6ab87f1d61b35fe20905c8fc7"`
[INFO] running `"docker" "rm" "-f" "956ce728cb52df2f17b37f6cc31ba071ffba07e6ab87f1d61b35fe20905c8fc7"`
[INFO] [stdout] 956ce728cb52df2f17b37f6cc31ba071ffba07e6ab87f1d61b35fe20905c8fc7