[INFO] cloning repository https://github.com/playXE/ExVM-RS
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2FExVM-RS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52f669fa30ec3445ac8cc35e1ccae8f5c6058704
[INFO] checking playXE/ExVM-RS against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2FExVM-RS" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playXE/ExVM-RS on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2/source/Cargo.toml
[INFO] crate git repo https://github.com/playXE/ExVM-RS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c15b3e7493590704b7d65b65b901ca01fdbcb4c35d05eafe3b26636ca021116
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3c15b3e7493590704b7d65b65b901ca01fdbcb4c35d05eafe3b26636ca021116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c15b3e7493590704b7d65b65b901ca01fdbcb4c35d05eafe3b26636ca021116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c15b3e7493590704b7d65b65b901ca01fdbcb4c35d05eafe3b26636ca021116", kill_on_drop: false }`
[INFO] [stdout] 3c15b3e7493590704b7d65b65b901ca01fdbcb4c35d05eafe3b26636ca021116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17bf869c9c2c03af26011c962e4bd6b9d5041a746018ceed5893dd00a99728ac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "17bf869c9c2c03af26011c962e4bd6b9d5041a746018ceed5893dd00a99728ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking exvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::os::ProtType`
[INFO] [stdout]  --> src/gc/copying.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::os::ProtType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::os::ProtType`
[INFO] [stdout]  --> src/gc/copying.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::os::ProtType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_space`
[INFO] [stdout]    --> src/gc/copying.rs:210:58
[INFO] [stdout]     |
[INFO] [stdout] 210 |     pub fn copy(&self, from: Address, top: &mut Address, from_space: Region) -> Address {
[INFO] [stdout]     |                                                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_space`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `shrinked_ptr` is assigned to, but never used
[INFO] [stdout]    --> src/heap.rs:497:21
[INFO] [stdout]     |
[INFO] [stdout] 497 |                 let shrinked_ptr: *mut u8;
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_shrinked_ptr` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slot`
[INFO] [stdout]    --> src/heap.rs:498:21
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 let slot: *mut *mut u8;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_slot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `shrinked_ptr` is never read
[INFO] [stdout]    --> src/heap.rs:503:21
[INFO] [stdout]     |
[INFO] [stdout] 503 |                     shrinked_ptr = HNumber::tag(shrinked as i64) as *mut u8;
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_space`
[INFO] [stdout]    --> src/gc/copying.rs:210:58
[INFO] [stdout]     |
[INFO] [stdout] 210 |     pub fn copy(&self, from: Address, top: &mut Address, from_space: Region) -> Address {
[INFO] [stdout]     |                                                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_space`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `shrinked_ptr` is assigned to, but never used
[INFO] [stdout]    --> src/heap.rs:497:21
[INFO] [stdout]     |
[INFO] [stdout] 497 |                 let shrinked_ptr: *mut u8;
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_shrinked_ptr` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slot`
[INFO] [stdout]    --> src/heap.rs:498:21
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 let slot: *mut *mut u8;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_slot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `shrinked_ptr` is never read
[INFO] [stdout]    --> src/heap.rs:503:21
[INFO] [stdout]     |
[INFO] [stdout] 503 |                     shrinked_ptr = HNumber::tag(shrinked as i64) as *mut u8;
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/heap.rs:500:20
[INFO] [stdout]     |
[INFO] [stdout] 500 |                 if shrinked < 0 {
[INFO] [stdout]     |                    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `exvm::zalloc::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use exvm::zalloc::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/heap.rs:500:20
[INFO] [stdout]     |
[INFO] [stdout] 500 |                 if shrinked < 0 {
[INFO] [stdout]     |                    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `exvm::zalloc::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use exvm::zalloc::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut mbs = 0;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut mbs = 0;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `Command { std: "docker" "inspect" "17bf869c9c2c03af26011c962e4bd6b9d5041a746018ceed5893dd00a99728ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17bf869c9c2c03af26011c962e4bd6b9d5041a746018ceed5893dd00a99728ac", kill_on_drop: false }`
[INFO] [stdout] 17bf869c9c2c03af26011c962e4bd6b9d5041a746018ceed5893dd00a99728ac