[INFO] cloning repository https://github.com/playXE/ExVM-RS
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playXE/ExVM-RS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2FExVM-RS"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2FExVM-RS'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52f669fa30ec3445ac8cc35e1ccae8f5c6058704
[INFO] checking playXE/ExVM-RS against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2FExVM-RS" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playXE/ExVM-RS on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/playXE/ExVM-RS
[INFO] finished tweaking git repo https://github.com/playXE/ExVM-RS
[INFO] tweaked toml for git repo https://github.com/playXE/ExVM-RS written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/playXE/ExVM-RS already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b6a273949f461d94db52891f23a58e1155bafb084b5f3747af539e9b5e022274
[INFO] running `"docker" "start" "-a" "b6a273949f461d94db52891f23a58e1155bafb084b5f3747af539e9b5e022274"`
[INFO] [stderr]     Checking exvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::os::ProtType`
[INFO] [stderr]  --> src/gc/copying.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::os::ProtType;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::os::ProtType`
[INFO] [stderr]  --> src/gc/copying.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::os::ProtType;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `from_space`
[INFO] [stderr]    --> src/gc/copying.rs:210:58
[INFO] [stderr]     |
[INFO] [stderr] 210 |     pub fn copy(&self, from: Address, top: &mut Address, from_space: Region) -> Address {
[INFO] [stderr]     |                                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_from_space`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `shrinked_ptr` is assigned to, but never used
[INFO] [stderr]    --> src/heap.rs:497:21
[INFO] [stderr]     |
[INFO] [stderr] 497 |                 let shrinked_ptr: *mut u8;
[INFO] [stderr]     |                     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_shrinked_ptr` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `slot`
[INFO] [stderr]    --> src/heap.rs:498:21
[INFO] [stderr]     |
[INFO] [stderr] 498 |                 let slot: *mut *mut u8;
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_slot`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `shrinked_ptr` is never read
[INFO] [stderr]    --> src/heap.rs:503:21
[INFO] [stderr]     |
[INFO] [stderr] 503 |                     shrinked_ptr = HNumber::tag(shrinked as i64) as *mut u8;
[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: unused variable: `from_space`
[INFO] [stderr]    --> src/gc/copying.rs:210:58
[INFO] [stderr]     |
[INFO] [stderr] 210 |     pub fn copy(&self, from: Address, top: &mut Address, from_space: Region) -> Address {
[INFO] [stderr]     |                                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_from_space`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `shrinked_ptr` is assigned to, but never used
[INFO] [stderr]    --> src/heap.rs:497:21
[INFO] [stderr]     |
[INFO] [stderr] 497 |                 let shrinked_ptr: *mut u8;
[INFO] [stderr]     |                     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_shrinked_ptr` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `slot`
[INFO] [stderr]    --> src/heap.rs:498:21
[INFO] [stderr]     |
[INFO] [stderr] 498 |                 let slot: *mut *mut u8;
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_slot`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `shrinked_ptr` is never read
[INFO] [stderr]    --> src/heap.rs:503:21
[INFO] [stderr]     |
[INFO] [stderr] 503 |                     shrinked_ptr = HNumber::tag(shrinked as i64) as *mut u8;
[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: comparison is useless due to type limits
[INFO] [stderr]    --> src/heap.rs:500:20
[INFO] [stderr]     |
[INFO] [stderr] 500 |                 if shrinked < 0 {
[INFO] [stderr]     |                    ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/heap.rs:500:20
[INFO] [stderr]     |
[INFO] [stderr] 500 |                 if shrinked < 0 {
[INFO] [stderr]     |                    ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `exvm::zalloc::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use exvm::zalloc::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut mbs = 0;
[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: unused import: `exvm::zalloc::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use exvm::zalloc::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut mbs = 0;
[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 3.31s
[INFO] running `"docker" "inspect" "b6a273949f461d94db52891f23a58e1155bafb084b5f3747af539e9b5e022274"`
[INFO] running `"docker" "rm" "-f" "b6a273949f461d94db52891f23a58e1155bafb084b5f3747af539e9b5e022274"`
[INFO] [stdout] b6a273949f461d94db52891f23a58e1155bafb084b5f3747af539e9b5e022274