[INFO] fetching crate chip8_vm 0.4.0...
[INFO] checking chip8_vm-0.4.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate chip8_vm 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate chip8_vm 0.4.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate chip8_vm 0.4.0
[INFO] finished tweaking crates.io crate chip8_vm 0.4.0
[INFO] tweaked toml for crates.io crate chip8_vm 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] b90197c5cf087b77f39b71c4ee981bc257697291300d824ed8c54bcb67fc0850
[INFO] running `"docker" "start" "-a" "b90197c5cf087b77f39b71c4ee981bc257697291300d824ed8c54bcb67fc0850"`
[INFO] [stderr]     Checking chip8_vm v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/vm.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         try!(reader.read_to_end(&mut rom));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/vm.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         try!(ram.write_all(rom.as_ref()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[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/vm.rs:116:45
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn load_rom(&mut self, reader: &mut Read) -> Result<usize, Chip8Error> {
[INFO] [stderr]     |                                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm.rs:133:41
[INFO] [stderr]     |
[INFO] [stderr] 133 |     pub fn dump_ram(&self, writer: &mut Write) {
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/vm.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         try!(reader.read_to_end(&mut rom));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/vm.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         try!(ram.write_all(rom.as_ref()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[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/vm.rs:116:45
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn load_rom(&mut self, reader: &mut Read) -> Result<usize, Chip8Error> {
[INFO] [stderr]     |                                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm.rs:133:41
[INFO] [stderr]     |
[INFO] [stderr] 133 |     pub fn dump_ram(&self, writer: &mut Write) {
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/vm.rs:341:21
[INFO] [stderr]     |
[INFO] [stderr] 341 |                 let mut dst = &mut self.ram[i..i+vx+1];
[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/vm.rs:341:21
[INFO] [stderr]     |
[INFO] [stderr] 341 |                 let mut dst = &mut self.ram[i..i+vx+1];
[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 0.35s
[INFO] running `"docker" "inspect" "b90197c5cf087b77f39b71c4ee981bc257697291300d824ed8c54bcb67fc0850"`
[INFO] running `"docker" "rm" "-f" "b90197c5cf087b77f39b71c4ee981bc257697291300d824ed8c54bcb67fc0850"`
[INFO] [stdout] b90197c5cf087b77f39b71c4ee981bc257697291300d824ed8c54bcb67fc0850