[INFO] updating cached repository ejlangev/rust_os
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ejlangev/rust_os
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ejlangev/rust_os" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ejlangev/rust_os"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ejlangev/rust_os'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ejlangev/rust_os" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ejlangev/rust_os"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ejlangev/rust_os'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c103789ef4f17e09976108402bc57b5fe09534b6
[INFO] sha for GitHub repo ejlangev/rust_os: c103789ef4f17e09976108402bc57b5fe09534b6
[INFO] validating manifest of ejlangev/rust_os on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ejlangev/rust_os on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ejlangev/rust_os
[INFO] finished frobbing ejlangev/rust_os
[INFO] frobbed toml for ejlangev/rust_os written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ejlangev/rust_os/Cargo.toml
[INFO] started frobbing ejlangev/rust_os
[INFO] finished frobbing ejlangev/rust_os
[INFO] frobbed toml for ejlangev/rust_os written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ejlangev/rust_os/Cargo.toml
[INFO] crate ejlangev/rust_os already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking ejlangev/rust_os against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ejlangev/rust_os:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b35b840e860dd407d3ddc986048ca558d5f38de55aa6de03c9c268dcc3aeb92f
[INFO] running `"docker" "start" "-a" "b35b840e860dd407d3ddc986048ca558d5f38de55aa6de03c9c268dcc3aeb92f"`
[INFO] [stderr]     Checking volatile v0.2.5
[INFO] [stderr]     Checking x86_64 v0.2.14
[INFO] [stderr]     Checking array-init v0.0.3
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling skeptic v0.5.0
[INFO] [stderr]    Compiling fixedvec v0.2.3
[INFO] [stderr]     Checking bootloader v0.3.7
[INFO] [stderr]     Checking ethan_os v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vga_buffer/mod.rs:75:50
[INFO] [stderr]    |
[INFO] [stderr] 75 |   fn with_color(&mut self, color: ColorCode, f: &Fn(&mut Self)) {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Self)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/vga_buffer/mod.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         0x20...0x7e | b'\n' => self.write_byte(byte),
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vga_buffer/mod.rs:75:50
[INFO] [stderr]    |
[INFO] [stderr] 75 |   fn with_color(&mut self, color: ColorCode, f: &Fn(&mut Self)) {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Self)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/vga_buffer/mod.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         0x20...0x7e | b'\n' => self.write_byte(byte),
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.64s
[INFO] running `"docker" "inspect" "b35b840e860dd407d3ddc986048ca558d5f38de55aa6de03c9c268dcc3aeb92f"`
[INFO] running `"docker" "rm" "-f" "b35b840e860dd407d3ddc986048ca558d5f38de55aa6de03c9c268dcc3aeb92f"`
[INFO] [stdout] b35b840e860dd407d3ddc986048ca558d5f38de55aa6de03c9c268dcc3aeb92f