Dec 19 06:06:54.841 INFO checking vi/netmeasure2 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:06:54.841 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/vi/netmeasure2:/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 06:06:55.402 INFO [stdout] 722495cf55ae2eeeed31c8773033a6b2ed3ce47a0b82b71d1d205c43f92e713f
Dec 19 06:06:55.406 INFO running `"docker" "start" "-a" "722495cf55ae2eeeed31c8773033a6b2ed3ce47a0b82b71d1d205c43f92e713f"`
Dec 19 06:06:57.368 INFO [stderr]    Compiling serde v1.0.79
Dec 19 06:06:57.396 INFO [stderr]    Compiling num-traits v0.2.5
Dec 19 06:06:57.396 INFO [stderr]    Compiling either v1.5.0
Dec 19 06:06:57.396 INFO [stderr]     Checking half v1.2.0
Dec 19 06:06:57.396 INFO [stderr]     Checking macro-attr v0.2.0
Dec 19 06:06:57.396 INFO [stderr]     Checking counted-array v0.1.2
Dec 19 06:06:57.396 INFO [stderr]     Checking spin_sleep v0.3.7
Dec 19 06:06:57.396 INFO [stderr]     Checking static_assertions v0.2.5
Dec 19 06:06:58.036 INFO [stderr]     Checking strum v0.9.0
Dec 19 06:06:58.060 INFO [stderr]    Compiling proc-macro2 v0.4.17
Dec 19 06:06:58.117 INFO [stderr]    Compiling failure_derive v0.1.2
Dec 19 06:06:58.166 INFO [stderr]    Compiling syn v0.10.8
Dec 19 06:06:58.196 INFO [stderr]     Checking itertools v0.5.10
Dec 19 06:06:59.767 INFO [stderr]    Compiling rand_derive v0.3.1
Dec 19 06:07:00.848 INFO [stderr]     Checking backtrace v0.3.9
Dec 19 06:07:10.906 INFO [stderr]    Compiling quote v0.6.8
Dec 19 06:07:12.969 INFO [stderr]    Compiling syn v0.14.9
Dec 19 06:07:12.971 INFO [stderr]    Compiling syn v0.15.4
Dec 19 06:07:14.204 INFO [stderr]     Checking enum-unitary v0.3.4
Dec 19 06:07:37.429 INFO [stderr]    Compiling derivative v1.0.0
Dec 19 06:07:45.121 INFO [stderr]    Compiling mini-internal v0.1.1
Dec 19 06:07:45.123 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 19 06:08:02.728 INFO [stderr]    Compiling synstructure v0.9.0
Dec 19 06:08:02.772 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 19 06:08:03.424 INFO [stderr]    Compiling strum_macros v0.9.1
Dec 19 06:08:03.428 INFO [stderr]     Checking miniserde v0.1.1
Dec 19 06:08:03.956 INFO [stderr]     Checking serde_json v1.0.28
Dec 19 06:08:03.956 INFO [stderr]     Checking bincode v1.0.1
Dec 19 06:08:07.244 INFO [stderr]     Checking serde_cbor v0.9.0
Dec 19 06:08:09.010 INFO [stderr]     Checking miniserde_tools v0.1.0 (/opt/crater/workdir/miniserde_tools)
Dec 19 06:08:20.573 INFO [stderr]     Checking structopt v0.2.10
Dec 19 06:08:21.246 INFO [stderr]     Checking failure v0.1.2
Dec 19 06:08:30.745 INFO [stderr]     Checking netmeasure2 v0.1.0 (/opt/crater/workdir)
Dec 19 06:08:34.644 INFO [stderr] error: unused `std::result::Result` that must be used
Dec 19 06:08:34.644 INFO [stderr]    --> src/probe.rs:354:9
Dec 19 06:08:34.644 INFO [stderr]     |
Dec 19 06:08:34.644 INFO [stderr] 354 |         writeln!(out);
Dec 19 06:08:34.644 INFO [stderr]     |         ^^^^^^^^^^^^^^
Dec 19 06:08:34.644 INFO [stderr]     |
Dec 19 06:08:34.644 INFO [stderr] note: lint level defined here
Dec 19 06:08:34.644 INFO [stderr]    --> src/main.rs:9:9
Dec 19 06:08:34.644 INFO [stderr]     |
Dec 19 06:08:34.644 INFO [stderr] 9   | #![deny(unused_must_use)]
Dec 19 06:08:34.644 INFO [stderr]     |         ^^^^^^^^^^^^^^^
Dec 19 06:08:34.644 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:08:34.644 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 06:08:34.644 INFO [stderr] 
Dec 19 06:08:34.644 INFO [stderr] error: unused `std::result::Result` that must be used
Dec 19 06:08:34.645 INFO [stderr]    --> src/battery/run.rs:115:13
Dec 19 06:08:34.645 INFO [stderr]     |
Dec 19 06:08:34.645 INFO [stderr] 115 |             writeln!(out);
Dec 19 06:08:34.645 INFO [stderr]     |             ^^^^^^^^^^^^^^
Dec 19 06:08:34.645 INFO [stderr]     |
Dec 19 06:08:34.645 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:08:34.645 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 06:08:34.645 INFO [stderr] 
Dec 19 06:08:34.688 INFO [stderr] error: aborting due to 2 previous errors
Dec 19 06:08:34.688 INFO [stderr] 
Dec 19 06:08:34.712 INFO [stderr] error: Could not compile `netmeasure2`.
Dec 19 06:08:34.712 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 06:08:34.816 INFO [stderr] error: unused `std::result::Result` that must be used
Dec 19 06:08:34.816 INFO [stderr]    --> src/probe.rs:354:9
Dec 19 06:08:34.816 INFO [stderr]     |
Dec 19 06:08:34.816 INFO [stderr] 354 |         writeln!(out);
Dec 19 06:08:34.816 INFO [stderr]     |         ^^^^^^^^^^^^^^
Dec 19 06:08:34.816 INFO [stderr]     |
Dec 19 06:08:34.816 INFO [stderr] note: lint level defined here
Dec 19 06:08:34.816 INFO [stderr]    --> src/main.rs:9:9
Dec 19 06:08:34.816 INFO [stderr]     |
Dec 19 06:08:34.816 INFO [stderr] 9   | #![deny(unused_must_use)]
Dec 19 06:08:34.816 INFO [stderr]     |         ^^^^^^^^^^^^^^^
Dec 19 06:08:34.816 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:08:34.816 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 06:08:34.816 INFO [stderr] 
Dec 19 06:08:34.816 INFO [stderr] error: unused `std::result::Result` that must be used
Dec 19 06:08:34.816 INFO [stderr]    --> src/battery/run.rs:115:13
Dec 19 06:08:34.816 INFO [stderr]     |
Dec 19 06:08:34.816 INFO [stderr] 115 |             writeln!(out);
Dec 19 06:08:34.817 INFO [stderr]     |             ^^^^^^^^^^^^^^
Dec 19 06:08:34.817 INFO [stderr]     |
Dec 19 06:08:34.817 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:08:34.817 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 06:08:34.817 INFO [stderr] 
Dec 19 06:08:34.841 INFO [stderr] error: aborting due to 2 previous errors
Dec 19 06:08:34.841 INFO [stderr] 
Dec 19 06:08:34.864 INFO [stderr] error: Could not compile `netmeasure2`.
Dec 19 06:08:34.864 INFO [stderr] 
Dec 19 06:08:34.864 INFO [stderr] To learn more, run the command again with --verbose.
Dec 19 06:08:35.878 INFO running `"docker" "inspect" "722495cf55ae2eeeed31c8773033a6b2ed3ce47a0b82b71d1d205c43f92e713f"`
Dec 19 06:08:36.180 INFO running `"docker" "rm" "-f" "722495cf55ae2eeeed31c8773033a6b2ed3ce47a0b82b71d1d205c43f92e713f"`
Dec 19 06:08:36.524 INFO [stdout] 722495cf55ae2eeeed31c8773033a6b2ed3ce47a0b82b71d1d205c43f92e713f