[INFO] fetching crate chip8_vm 0.4.0...
[INFO] checking chip8_vm-0.4.0 against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] extracting crate chip8_vm 0.4.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate chip8_vm 0.4.0 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc8cbadba206176c276033a8db5ae3cda0b83b91f66b99c88c383927e321324b
[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" "bc8cbadba206176c276033a8db5ae3cda0b83b91f66b99c88c383927e321324b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc8cbadba206176c276033a8db5ae3cda0b83b91f66b99c88c383927e321324b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc8cbadba206176c276033a8db5ae3cda0b83b91f66b99c88c383927e321324b", kill_on_drop: false }`
[INFO] [stdout] bc8cbadba206176c276033a8db5ae3cda0b83b91f66b99c88c383927e321324b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b02f3e1c6bfb6dc782fb69327ade29778bfcf39e20adf70014d91034ded8bb43
[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" "b02f3e1c6bfb6dc782fb69327ade29778bfcf39e20adf70014d91034ded8bb43", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking chip8_vm v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/vm.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         try!(reader.read_to_end(&mut rom));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/vm.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         try!(ram.write_all(rom.as_ref()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm.rs:116:45
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn load_rom(&mut self, reader: &mut Read) -> Result<usize, Chip8Error> {
[INFO] [stdout]     |                                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm.rs:133:41
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn dump_ram(&self, writer: &mut Write) {
[INFO] [stdout]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/vm.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         try!(reader.read_to_end(&mut rom));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/vm.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         try!(ram.write_all(rom.as_ref()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm.rs:116:45
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn load_rom(&mut self, reader: &mut Read) -> Result<usize, Chip8Error> {
[INFO] [stdout]     |                                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm.rs:133:41
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn dump_ram(&self, writer: &mut Write) {
[INFO] [stdout]     |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:17:39
[INFO] [stdout]    |
[INFO] [stdout] 17 |         return write!(fmt, "{}", self.description())
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:17:39
[INFO] [stdout]    |
[INFO] [stdout] 17 |         return write!(fmt, "{}", self.description())
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:341:21
[INFO] [stdout]     |
[INFO] [stdout] 341 |                 let mut dst = &mut self.ram[i..i+vx+1];
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:341:21
[INFO] [stdout]     |
[INFO] [stdout] 341 |                 let mut dst = &mut self.ram[i..i+vx+1];
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.39s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b02f3e1c6bfb6dc782fb69327ade29778bfcf39e20adf70014d91034ded8bb43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02f3e1c6bfb6dc782fb69327ade29778bfcf39e20adf70014d91034ded8bb43", kill_on_drop: false }`
[INFO] [stdout] b02f3e1c6bfb6dc782fb69327ade29778bfcf39e20adf70014d91034ded8bb43
