[INFO] crate chiter 0.4.2 is already in cache
[INFO] extracting crate chiter 0.4.2 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/chiter/0.4.2
[INFO] extracting crate chiter 0.4.2 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/chiter/0.4.2
[INFO] validating manifest of chiter-0.4.2 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chiter-0.4.2 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chiter-0.4.2
[INFO] finished frobbing chiter-0.4.2
[INFO] frobbed toml for chiter-0.4.2 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/chiter/0.4.2/Cargo.toml
[INFO] started frobbing chiter-0.4.2
[INFO] finished frobbing chiter-0.4.2
[INFO] frobbed toml for chiter-0.4.2 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/chiter/0.4.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking chiter-0.4.2 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-7/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/chiter/0.4.2:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 316d798a0cdd4223fc6904ebd883cd8aa97543cfe1bcd8889118cf7b044ec8eb
[INFO] running `"docker" "start" "-a" "316d798a0cdd4223fc6904ebd883cd8aa97543cfe1bcd8889118cf7b044ec8eb"`
[INFO] [stderr]     Checking chiter v0.4.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `add_one` is assigned to, but never used
[INFO] [stderr]  --> src/lib.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |         let add_one;
[INFO] [stderr]   |             ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]   = note: consider using `_add_one` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `get_random_number` is assigned to, but never used
[INFO] [stderr]  --> src/lib.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |         let get_random_number;
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider using `_get_random_number` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `add_one` is never read
[INFO] [stderr]   --> src/lib.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | /             chiter::make_functions! {
[INFO] [stderr] 11 | |                 0xDEADBEEF; fn add_one(i32) -> i32;
[INFO] [stderr] 12 | |                 0xDEADBEEFu32 + 70; fn get_random_number() -> i32;
[INFO] [stderr] 13 | |             }
[INFO] [stderr]    | |_____________- in this macro invocation
[INFO] [stderr] ...
[INFO] [stderr] 85 |               $fn_name = std::mem::transmute::<*const usize, fn( $($argument),* ) -> $returntype>($address as *const usize);
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `get_random_number` is never read
[INFO] [stderr]   --> src/lib.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | /             chiter::make_functions! {
[INFO] [stderr] 11 | |                 0xDEADBEEF; fn add_one(i32) -> i32;
[INFO] [stderr] 12 | |                 0xDEADBEEFu32 + 70; fn get_random_number() -> i32;
[INFO] [stderr] 13 | |             }
[INFO] [stderr]    | |_____________- in this macro invocation
[INFO] [stderr] ...
[INFO] [stderr] 85 |               $fn_name = std::mem::transmute::<*const usize, fn( $($argument),* ) -> $returntype>($address as *const usize);
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     #[macro_use]
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "316d798a0cdd4223fc6904ebd883cd8aa97543cfe1bcd8889118cf7b044ec8eb"`
[INFO] running `"docker" "rm" "-f" "316d798a0cdd4223fc6904ebd883cd8aa97543cfe1bcd8889118cf7b044ec8eb"`
[INFO] [stdout] 316d798a0cdd4223fc6904ebd883cd8aa97543cfe1bcd8889118cf7b044ec8eb