Dec 12 22:25:07.517 INFO testing vi/netmeasure2 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 12 22:25:07.517 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 22:25:08.091 INFO [stdout] ce89f63abd0fc286cf7e6d9288281409532e8c2904bb8ffd68ca6596d1ee68da
Dec 12 22:25:08.093 INFO running `"docker" "start" "-a" "ce89f63abd0fc286cf7e6d9288281409532e8c2904bb8ffd68ca6596d1ee68da"`
Dec 12 22:25:09.103 INFO [stderr] usermod: no changes
Dec 12 22:25:09.263 INFO [stderr]    Compiling serde v1.0.79
Dec 12 22:25:09.279 INFO [stderr]    Compiling macro-attr v0.2.0
Dec 12 22:25:09.279 INFO [stderr]    Compiling half v1.2.0
Dec 12 22:25:09.279 INFO [stderr]    Compiling enum_derive v0.1.7
Dec 12 22:25:09.279 INFO [stderr]    Compiling strum v0.9.0
Dec 12 22:25:09.279 INFO [stderr]    Compiling spin_sleep v0.3.7
Dec 12 22:25:09.279 INFO [stderr]    Compiling static_assertions v0.2.5
Dec 12 22:25:09.279 INFO [stderr]    Compiling counted-array v0.1.2
Dec 12 22:25:10.147 INFO [stderr]    Compiling num-traits v0.2.5
Dec 12 22:25:10.183 INFO [stderr]    Compiling derivative v1.0.0
Dec 12 22:25:10.263 INFO [stderr]    Compiling rand_derive v0.3.1
Dec 12 22:25:10.387 INFO [stderr]    Compiling syn v0.14.9
Dec 12 22:25:10.455 INFO [stderr]    Compiling syn v0.15.4
Dec 12 22:25:10.663 INFO [stderr]    Compiling backtrace v0.3.9
Dec 12 22:25:23.807 INFO [stderr]    Compiling enum-unitary v0.3.4
Dec 12 22:25:36.547 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 12 22:25:45.879 INFO [stderr]    Compiling synstructure v0.9.0
Dec 12 22:25:45.879 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 12 22:25:45.879 INFO [stderr]    Compiling strum_macros v0.9.1
Dec 12 22:25:55.763 INFO [stderr]    Compiling failure_derive v0.1.2
Dec 12 22:25:55.859 INFO [stderr]    Compiling structopt v0.2.10
Dec 12 22:25:58.287 INFO [stderr]    Compiling serde_cbor v0.9.0
Dec 12 22:25:58.287 INFO [stderr]    Compiling bincode v1.0.1
Dec 12 22:25:58.287 INFO [stderr]    Compiling serde_json v1.0.28
Dec 12 22:26:02.307 INFO [stderr]    Compiling failure v0.1.2
Dec 12 22:26:08.274 INFO [stderr]    Compiling netmeasure2 v0.1.0 (/source)
Dec 12 22:26:11.120 INFO [stderr] error: unused `std::result::Result` that must be used
Dec 12 22:26:11.120 INFO [stderr]    --> src/probe.rs:354:9
Dec 12 22:26:11.120 INFO [stderr]     |
Dec 12 22:26:11.120 INFO [stderr] 354 |         writeln!(out);
Dec 12 22:26:11.120 INFO [stderr]     |         ^^^^^^^^^^^^^^
Dec 12 22:26:11.120 INFO [stderr]     |
Dec 12 22:26:11.120 INFO [stderr] note: lint level defined here
Dec 12 22:26:11.120 INFO [stderr]    --> src/main.rs:9:9
Dec 12 22:26:11.120 INFO [stderr]     |
Dec 12 22:26:11.120 INFO [stderr] 9   | #![deny(unused_must_use)]
Dec 12 22:26:11.120 INFO [stderr]     |         ^^^^^^^^^^^^^^^
Dec 12 22:26:11.120 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 22:26:11.120 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 12 22:26:11.120 INFO [stderr] 
Dec 12 22:26:11.120 INFO [stderr] error: unused `std::result::Result` that must be used
Dec 12 22:26:11.120 INFO [stderr]    --> src/battery/run.rs:115:13
Dec 12 22:26:11.120 INFO [stderr]     |
Dec 12 22:26:11.120 INFO [stderr] 115 |             writeln!(out);
Dec 12 22:26:11.120 INFO [stderr]     |             ^^^^^^^^^^^^^^
Dec 12 22:26:11.120 INFO [stderr]     |
Dec 12 22:26:11.120 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 22:26:11.120 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 12 22:26:11.120 INFO [stderr] 
Dec 12 22:26:11.135 INFO [stderr] error: aborting due to 2 previous errors
Dec 12 22:26:11.135 INFO [stderr] 
Dec 12 22:26:11.162 INFO [stderr] error: Could not compile `netmeasure2`.
Dec 12 22:26:11.163 INFO [stderr] 
Dec 12 22:26:11.163 INFO [stderr] To learn more, run the command again with --verbose.
Dec 12 22:26:11.166 INFO [stderr] su: No module specific data is present
Dec 12 22:26:11.893 INFO running `"docker" "inspect" "ce89f63abd0fc286cf7e6d9288281409532e8c2904bb8ffd68ca6596d1ee68da"`
Dec 12 22:26:12.211 INFO running `"docker" "rm" "-f" "ce89f63abd0fc286cf7e6d9288281409532e8c2904bb8ffd68ca6596d1ee68da"`
Dec 12 22:26:12.494 INFO [stdout] ce89f63abd0fc286cf7e6d9288281409532e8c2904bb8ffd68ca6596d1ee68da