Dec 19 10:03:52.062 INFO checking robinvd/vm against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:03:52.063 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/robinvd/vm:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:03:52.221 INFO [stdout] a6425a4cc810c0c4a3d6da71a3579d1f215fe35be308a5024f3b3960dd5a03ed
Dec 19 10:03:52.226 INFO running `"docker" "start" "-a" "a6425a4cc810c0c4a3d6da71a3579d1f215fe35be308a5024f3b3960dd5a03ed"`
Dec 19 10:03:52.925 INFO [stderr]     Checking log v0.4.6
Dec 19 10:03:52.926 INFO [stderr]     Checking criterion-plot v0.2.5
Dec 19 10:03:52.932 INFO [stderr]     Checking criterion-stats v0.2.5
Dec 19 10:03:52.932 INFO [stderr]     Checking itertools-num v0.1.2
Dec 19 10:03:52.940 INFO [stderr]    Compiling syn v0.15.17
Dec 19 10:03:52.956 INFO [stderr]     Checking csv-core v0.1.4
Dec 19 10:03:52.956 INFO [stderr]     Checking combine v3.6.1
Dec 19 10:03:52.957 INFO [stderr]     Checking chrono v0.4.6
Dec 19 10:03:53.817 INFO [stderr]     Checking handlebars v0.32.4
Dec 19 10:03:54.812 INFO [stderr]     Checking csv v1.0.2
Dec 19 10:03:57.578 INFO [stderr]     Checking simplelog v0.5.3
Dec 19 10:04:09.895 INFO [stderr]    Compiling synstructure v0.10.1
Dec 19 10:04:09.895 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 19 10:04:13.068 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 19 10:04:15.624 INFO [stderr]     Checking failure v0.1.3
Dec 19 10:04:24.213 INFO [stderr]     Checking criterion v0.2.5
Dec 19 10:04:24.404 INFO [stderr]     Checking sabi v0.1.0 (/opt/crater/workdir)
Dec 19 10:04:27.014 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.014 INFO [stderr]    --> src/vm/mod.rs:296:17
Dec 19 10:04:27.014 INFO [stderr]     |
Dec 19 10:04:27.014 INFO [stderr] 296 |                 writeln!(data, "{}", val);
Dec 19 10:04:27.014 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.014 INFO [stderr]     |
Dec 19 10:04:27.014 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 10:04:27.015 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.015 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 10:04:27.015 INFO [stderr] 
Dec 19 10:04:27.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.015 INFO [stderr]    --> src/vm/mod.rs:420:9
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr] 420 |         writeln!(f, "{}:", self.name);
Dec 19 10:04:27.015 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.015 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 10:04:27.015 INFO [stderr] 
Dec 19 10:04:27.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.015 INFO [stderr]    --> src/vm/mod.rs:429:13
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr] 429 |             write!(f, "{:04x}: {:?}", i, op);
Dec 19 10:04:27.015 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.015 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 10:04:27.015 INFO [stderr] 
Dec 19 10:04:27.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.015 INFO [stderr]    --> src/vm/mod.rs:437:17
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr] 437 |                 write!(f, " {}", num);
Dec 19 10:04:27.015 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.015 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 10:04:27.015 INFO [stderr] 
Dec 19 10:04:27.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.015 INFO [stderr]    --> src/vm/mod.rs:441:13
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr] 441 |             writeln!(f);
Dec 19 10:04:27.015 INFO [stderr]     |             ^^^^^^^^^^^^
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.015 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 10:04:27.015 INFO [stderr] 
Dec 19 10:04:27.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.015 INFO [stderr]    --> src/vm/mod.rs:444:9
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr] 444 |         writeln!(f, "labels {:?}", self.labels);
Dec 19 10:04:27.015 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.015 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 10:04:27.015 INFO [stderr] 
Dec 19 10:04:27.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.015 INFO [stderr]    --> src/vm/mod.rs:445:9
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr] 445 |         writeln!(f, "labeli {:?}", self.label_index);
Dec 19 10:04:27.015 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.015 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 10:04:27.015 INFO [stderr] 
Dec 19 10:04:27.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.015 INFO [stderr]    --> src/vm/mod.rs:446:9
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr] 446 |         writeln!(f, "const  {:?}", self.constants);
Dec 19 10:04:27.015 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.015 INFO [stderr]     |
Dec 19 10:04:27.015 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.015 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 10:04:27.015 INFO [stderr] 
Dec 19 10:04:30.235 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.235 INFO [stderr]    --> src/vm/mod.rs:296:17
Dec 19 10:04:30.235 INFO [stderr]     |
Dec 19 10:04:30.235 INFO [stderr] 296 |                 writeln!(data, "{}", val);
Dec 19 10:04:30.235 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.235 INFO [stderr]     |
Dec 19 10:04:30.235 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 10:04:30.235 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.235 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 10:04:30.235 INFO [stderr] 
Dec 19 10:04:30.235 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.235 INFO [stderr]    --> src/vm/mod.rs:420:9
Dec 19 10:04:30.235 INFO [stderr]     |
Dec 19 10:04:30.235 INFO [stderr] 420 |         writeln!(f, "{}:", self.name);
Dec 19 10:04:30.235 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.235 INFO [stderr]     |
Dec 19 10:04:30.235 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.235 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 10:04:30.235 INFO [stderr] 
Dec 19 10:04:30.235 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.235 INFO [stderr]    --> src/vm/mod.rs:429:13
Dec 19 10:04:30.235 INFO [stderr]     |
Dec 19 10:04:30.235 INFO [stderr] 429 |             write!(f, "{:04x}: {:?}", i, op);
Dec 19 10:04:30.235 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.235 INFO [stderr]     |
Dec 19 10:04:30.235 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.235 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 10:04:30.235 INFO [stderr] 
Dec 19 10:04:30.235 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.235 INFO [stderr]    --> src/vm/mod.rs:437:17
Dec 19 10:04:30.235 INFO [stderr]     |
Dec 19 10:04:30.235 INFO [stderr] 437 |                 write!(f, " {}", num);
Dec 19 10:04:30.235 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.235 INFO [stderr]     |
Dec 19 10:04:30.235 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.235 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 10:04:30.236 INFO [stderr] 
Dec 19 10:04:30.236 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.236 INFO [stderr]    --> src/vm/mod.rs:441:13
Dec 19 10:04:30.236 INFO [stderr]     |
Dec 19 10:04:30.236 INFO [stderr] 441 |             writeln!(f);
Dec 19 10:04:30.236 INFO [stderr]     |             ^^^^^^^^^^^^
Dec 19 10:04:30.236 INFO [stderr]     |
Dec 19 10:04:30.236 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.236 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 10:04:30.236 INFO [stderr] 
Dec 19 10:04:30.236 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.236 INFO [stderr]    --> src/vm/mod.rs:444:9
Dec 19 10:04:30.236 INFO [stderr]     |
Dec 19 10:04:30.236 INFO [stderr] 444 |         writeln!(f, "labels {:?}", self.labels);
Dec 19 10:04:30.236 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.236 INFO [stderr]     |
Dec 19 10:04:30.236 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.236 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 10:04:30.236 INFO [stderr] 
Dec 19 10:04:30.236 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.236 INFO [stderr]    --> src/vm/mod.rs:445:9
Dec 19 10:04:30.236 INFO [stderr]     |
Dec 19 10:04:30.236 INFO [stderr] 445 |         writeln!(f, "labeli {:?}", self.label_index);
Dec 19 10:04:30.236 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.236 INFO [stderr]     |
Dec 19 10:04:30.236 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.236 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 10:04:30.236 INFO [stderr] 
Dec 19 10:04:30.236 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.236 INFO [stderr]    --> src/vm/mod.rs:446:9
Dec 19 10:04:30.236 INFO [stderr]     |
Dec 19 10:04:30.236 INFO [stderr] 446 |         writeln!(f, "const  {:?}", self.constants);
Dec 19 10:04:30.236 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.236 INFO [stderr]     |
Dec 19 10:04:30.236 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.236 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 10:04:30.236 INFO [stderr] 
Dec 19 10:04:30.292 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.54s
Dec 19 10:04:31.116 INFO running `"docker" "inspect" "a6425a4cc810c0c4a3d6da71a3579d1f215fe35be308a5024f3b3960dd5a03ed"`
Dec 19 10:04:31.427 INFO running `"docker" "rm" "-f" "a6425a4cc810c0c4a3d6da71a3579d1f215fe35be308a5024f3b3960dd5a03ed"`
Dec 19 10:04:31.868 INFO [stdout] a6425a4cc810c0c4a3d6da71a3579d1f215fe35be308a5024f3b3960dd5a03ed