Dec 19 20:26:08.329 INFO checking anurse/ArborOS against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:26:08.329 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/anurse/ArborOS:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:26:08.882 INFO [stdout] add77b1ecd4a0e7c709c132380cee13793b24b875fdacfd8d1518e18726dd279
Dec 19 20:26:08.884 INFO running `"docker" "start" "-a" "add77b1ecd4a0e7c709c132380cee13793b24b875fdacfd8d1518e18726dd279"`
Dec 19 20:26:11.175 INFO [stderr]     Checking spin v0.4.9
Dec 19 20:26:11.176 INFO [stderr]     Checking volatile v0.2.4
Dec 19 20:26:11.176 INFO [stderr]    Compiling lazy_static v1.1.0
Dec 19 20:26:11.180 INFO [stderr]     Checking array-init v0.0.3
Dec 19 20:26:13.104 INFO [stderr]     Checking arbor_os v0.1.0 (/opt/crater/workdir)
Dec 19 20:26:14.032 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.032 INFO [stderr]    --> src/vga/writer.rs:162:13
Dec 19 20:26:14.032 INFO [stderr]     |
Dec 19 20:26:14.032 INFO [stderr] 162 |             writeln!(&mut writer, "Line {}", i);
Dec 19 20:26:14.032 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.032 INFO [stderr]     |
Dec 19 20:26:14.032 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 20:26:14.032 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.032 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.032 INFO [stderr] 
Dec 19 20:26:14.032 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.032 INFO [stderr]    --> src/vga/writer.rs:182:13
Dec 19 20:26:14.032 INFO [stderr]     |
Dec 19 20:26:14.032 INFO [stderr] 182 |             writeln!(&mut writer, "Line {}", i);
Dec 19 20:26:14.032 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.032 INFO [stderr]     |
Dec 19 20:26:14.032 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.032 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.032 INFO [stderr] 
Dec 19 20:26:14.032 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.032 INFO [stderr]    --> src/vga/writer.rs:186:9
Dec 19 20:26:14.032 INFO [stderr]     |
Dec 19 20:26:14.032 INFO [stderr] 186 |         writeln!(&mut writer, "Extra Line 1");
Dec 19 20:26:14.032 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.032 INFO [stderr]     |
Dec 19 20:26:14.032 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.032 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.033 INFO [stderr] 
Dec 19 20:26:14.033 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.033 INFO [stderr]    --> src/vga/writer.rs:187:9
Dec 19 20:26:14.033 INFO [stderr]     |
Dec 19 20:26:14.033 INFO [stderr] 187 |         writeln!(&mut writer, "Extra Line 2");
Dec 19 20:26:14.033 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.033 INFO [stderr]     |
Dec 19 20:26:14.033 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.033 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.033 INFO [stderr] 
Dec 19 20:26:14.033 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.033 INFO [stderr]    --> src/vga/writer.rs:211:13
Dec 19 20:26:14.033 INFO [stderr]     |
Dec 19 20:26:14.033 INFO [stderr] 211 |             writeln!(&mut writer, "Line {}", i);
Dec 19 20:26:14.033 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.033 INFO [stderr]     |
Dec 19 20:26:14.033 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.033 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.033 INFO [stderr] 
Dec 19 20:26:14.033 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.033 INFO [stderr]    --> src/vga/writer.rs:218:9
Dec 19 20:26:14.033 INFO [stderr]     |
Dec 19 20:26:14.033 INFO [stderr] 218 |         writeln!(&mut writer, "Line 1");
Dec 19 20:26:14.033 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.033 INFO [stderr]     |
Dec 19 20:26:14.033 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.036 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.036 INFO [stderr] 
Dec 19 20:26:14.036 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.036 INFO [stderr]    --> src/vga/writer.rs:264:13
Dec 19 20:26:14.036 INFO [stderr]     |
Dec 19 20:26:14.036 INFO [stderr] 264 |             writeln!(&mut writer, "Line {}", i);
Dec 19 20:26:14.036 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.036 INFO [stderr]     |
Dec 19 20:26:14.036 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.036 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.036 INFO [stderr] 
Dec 19 20:26:14.036 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.036 INFO [stderr]    --> src/vga/writer.rs:272:9
Dec 19 20:26:14.036 INFO [stderr]     |
Dec 19 20:26:14.036 INFO [stderr] 272 |         writeln!(&mut writer, "1");
Dec 19 20:26:14.036 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.036 INFO [stderr]     |
Dec 19 20:26:14.036 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.036 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.036 INFO [stderr] 
Dec 19 20:26:14.036 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 19 20:26:14.036 INFO [stderr]    --> src/vga/writer.rs:273:9
Dec 19 20:26:14.036 INFO [stderr]     |
Dec 19 20:26:14.036 INFO [stderr] 273 |         writeln!(&mut writer, "2");
Dec 19 20:26:14.036 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:26:14.036 INFO [stderr]     |
Dec 19 20:26:14.036 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:26:14.036 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 20:26:14.036 INFO [stderr] 
Dec 19 20:26:14.085 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.99s
Dec 19 20:26:14.982 INFO running `"docker" "inspect" "add77b1ecd4a0e7c709c132380cee13793b24b875fdacfd8d1518e18726dd279"`
Dec 19 20:26:15.328 INFO running `"docker" "rm" "-f" "add77b1ecd4a0e7c709c132380cee13793b24b875fdacfd8d1518e18726dd279"`
Dec 19 20:26:15.560 INFO [stdout] add77b1ecd4a0e7c709c132380cee13793b24b875fdacfd8d1518e18726dd279