Dec 19 10:03:51.856 INFO checking robinvd/vm against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 10:03:51.856 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:03:52.019 INFO [stdout] 2ea7b4c1167f1211d122d5696080a527b2e97175ff2fdc5edfdf2144fe589e2d
Dec 19 10:03:52.022 INFO running `"docker" "start" "-a" "2ea7b4c1167f1211d122d5696080a527b2e97175ff2fdc5edfdf2144fe589e2d"`
Dec 19 10:03:52.822 INFO [stderr]     Checking log v0.4.6
Dec 19 10:03:52.822 INFO [stderr]     Checking itertools v0.7.8
Dec 19 10:03:52.824 INFO [stderr]    Compiling syn v0.15.17
Dec 19 10:03:52.824 INFO [stderr]     Checking csv-core v0.1.4
Dec 19 10:03:52.827 INFO [stderr]     Checking combine v3.6.1
Dec 19 10:03:53.368 INFO [stderr]     Checking simplelog v0.5.3
Dec 19 10:03:53.368 INFO [stderr]     Checking handlebars v0.32.4
Dec 19 10:03:54.808 INFO [stderr]     Checking csv v1.0.2
Dec 19 10:03:56.604 INFO [stderr]     Checking criterion-plot v0.2.5
Dec 19 10:04:09.994 INFO [stderr]    Compiling synstructure v0.10.1
Dec 19 10:04:09.994 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 19 10:04:12.988 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 19 10:04:15.732 INFO [stderr]     Checking failure v0.1.3
Dec 19 10:04:24.005 INFO [stderr]     Checking sabi v0.1.0 (/opt/crater/workdir)
Dec 19 10:04:24.256 INFO [stderr]     Checking criterion v0.2.5
Dec 19 10:04:26.983 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:26.983 INFO [stderr]    --> src/vm/mod.rs:296:17
Dec 19 10:04:26.983 INFO [stderr]     |
Dec 19 10:04:26.983 INFO [stderr] 296 |                 writeln!(data, "{}", val);
Dec 19 10:04:26.983 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:26.983 INFO [stderr]     |
Dec 19 10:04:26.983 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 10:04:26.983 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:26.984 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 10:04:26.984 INFO [stderr] 
Dec 19 10:04:26.984 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:26.984 INFO [stderr]    --> src/vm/mod.rs:420:9
Dec 19 10:04:26.984 INFO [stderr]     |
Dec 19 10:04:26.985 INFO [stderr] 420 |         writeln!(f, "{}:", self.name);
Dec 19 10:04:26.985 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:26.985 INFO [stderr]     |
Dec 19 10:04:26.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:26.985 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 10:04:26.985 INFO [stderr] 
Dec 19 10:04:26.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:26.985 INFO [stderr]    --> src/vm/mod.rs:429:13
Dec 19 10:04:26.986 INFO [stderr]     |
Dec 19 10:04:26.986 INFO [stderr] 429 |             write!(f, "{:04x}: {:?}", i, op);
Dec 19 10:04:26.986 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:26.986 INFO [stderr]     |
Dec 19 10:04:26.986 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:26.986 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 10:04:26.986 INFO [stderr] 
Dec 19 10:04:26.986 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:26.986 INFO [stderr]    --> src/vm/mod.rs:437:17
Dec 19 10:04:26.986 INFO [stderr]     |
Dec 19 10:04:26.986 INFO [stderr] 437 |                 write!(f, " {}", num);
Dec 19 10:04:26.986 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:26.986 INFO [stderr]     |
Dec 19 10:04:26.986 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:26.986 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 10:04:26.986 INFO [stderr] 
Dec 19 10:04:26.986 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:26.986 INFO [stderr]    --> src/vm/mod.rs:441:13
Dec 19 10:04:26.986 INFO [stderr]     |
Dec 19 10:04:26.986 INFO [stderr] 441 |             writeln!(f);
Dec 19 10:04:26.987 INFO [stderr]     |             ^^^^^^^^^^^^
Dec 19 10:04:26.987 INFO [stderr]     |
Dec 19 10:04:26.987 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:26.987 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 10:04:26.987 INFO [stderr] 
Dec 19 10:04:26.987 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:26.987 INFO [stderr]    --> src/vm/mod.rs:444:9
Dec 19 10:04:26.987 INFO [stderr]     |
Dec 19 10:04:26.987 INFO [stderr] 444 |         writeln!(f, "labels {:?}", self.labels);
Dec 19 10:04:26.987 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:26.987 INFO [stderr]     |
Dec 19 10:04:26.987 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:26.987 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 10:04:26.988 INFO [stderr] 
Dec 19 10:04:26.988 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:26.988 INFO [stderr]    --> src/vm/mod.rs:445:9
Dec 19 10:04:26.988 INFO [stderr]     |
Dec 19 10:04:26.988 INFO [stderr] 445 |         writeln!(f, "labeli {:?}", self.label_index);
Dec 19 10:04:26.988 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:26.988 INFO [stderr]     |
Dec 19 10:04:26.988 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:26.988 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 10:04:26.988 INFO [stderr] 
Dec 19 10:04:26.988 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:26.988 INFO [stderr]    --> src/vm/mod.rs:446:9
Dec 19 10:04:26.988 INFO [stderr]     |
Dec 19 10:04:26.988 INFO [stderr] 446 |         writeln!(f, "const  {:?}", self.constants);
Dec 19 10:04:26.988 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:26.988 INFO [stderr]     |
Dec 19 10:04:26.988 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:26.988 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 10:04:26.988 INFO [stderr] 
Dec 19 10:04:30.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.344 INFO [stderr]    --> src/vm/mod.rs:296:17
Dec 19 10:04:30.344 INFO [stderr]     |
Dec 19 10:04:30.344 INFO [stderr] 296 |                 writeln!(data, "{}", val);
Dec 19 10:04:30.344 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.344 INFO [stderr]     |
Dec 19 10:04:30.344 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 10:04:30.344 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.345 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 10:04:30.345 INFO [stderr] 
Dec 19 10:04:30.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.345 INFO [stderr]    --> src/vm/mod.rs:420:9
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr] 420 |         writeln!(f, "{}:", self.name);
Dec 19 10:04:30.345 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.345 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 10:04:30.345 INFO [stderr] 
Dec 19 10:04:30.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.345 INFO [stderr]    --> src/vm/mod.rs:429:13
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr] 429 |             write!(f, "{:04x}: {:?}", i, op);
Dec 19 10:04:30.345 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.345 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 10:04:30.345 INFO [stderr] 
Dec 19 10:04:30.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.345 INFO [stderr]    --> src/vm/mod.rs:437:17
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr] 437 |                 write!(f, " {}", num);
Dec 19 10:04:30.345 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.345 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 10:04:30.345 INFO [stderr] 
Dec 19 10:04:30.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.345 INFO [stderr]    --> src/vm/mod.rs:441:13
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr] 441 |             writeln!(f);
Dec 19 10:04:30.345 INFO [stderr]     |             ^^^^^^^^^^^^
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.345 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 10:04:30.345 INFO [stderr] 
Dec 19 10:04:30.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.345 INFO [stderr]    --> src/vm/mod.rs:444:9
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr] 444 |         writeln!(f, "labels {:?}", self.labels);
Dec 19 10:04:30.345 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.345 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 10:04:30.345 INFO [stderr] 
Dec 19 10:04:30.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.345 INFO [stderr]    --> src/vm/mod.rs:445:9
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr] 445 |         writeln!(f, "labeli {:?}", self.label_index);
Dec 19 10:04:30.345 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.345 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 10:04:30.345 INFO [stderr] 
Dec 19 10:04:30.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:30.345 INFO [stderr]    --> src/vm/mod.rs:446:9
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr] 446 |         writeln!(f, "const  {:?}", self.constants);
Dec 19 10:04:30.345 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:30.345 INFO [stderr]     |
Dec 19 10:04:30.345 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:30.352 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 10:04:30.352 INFO [stderr] 
Dec 19 10:04:30.396 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.76s
Dec 19 10:04:31.286 INFO running `"docker" "inspect" "2ea7b4c1167f1211d122d5696080a527b2e97175ff2fdc5edfdf2144fe589e2d"`
Dec 19 10:04:31.524 INFO running `"docker" "rm" "-f" "2ea7b4c1167f1211d122d5696080a527b2e97175ff2fdc5edfdf2144fe589e2d"`
Dec 19 10:04:31.876 INFO [stdout] 2ea7b4c1167f1211d122d5696080a527b2e97175ff2fdc5edfdf2144fe589e2d