[INFO] cloning repository toiletspider/mt_rust
[INFO] running `"git" "clone" "--bare" "git://github.com/toiletspider/mt_rust.git" "work/cache/sources/gh/toiletspider/mt_rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/toiletspider/mt_rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/toiletspider/mt_rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/toiletspider/mt_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/toiletspider/mt_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/toiletspider/mt_rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/toiletspider/mt_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/toiletspider/mt_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e97f006f454682e69a60974a23da227cdebc89c4
[INFO] sha for GitHub repo toiletspider/mt_rust: e97f006f454682e69a60974a23da227cdebc89c4
[INFO] validating manifest of toiletspider/mt_rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of toiletspider/mt_rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing toiletspider/mt_rust
[INFO] finished frobbing toiletspider/mt_rust
[INFO] frobbed toml for toiletspider/mt_rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/toiletspider/mt_rust/Cargo.toml
[INFO] started frobbing toiletspider/mt_rust
[INFO] finished frobbing toiletspider/mt_rust
[INFO] frobbed toml for toiletspider/mt_rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/toiletspider/mt_rust/Cargo.toml
[INFO] crate toiletspider/mt_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing toiletspider/mt_rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/toiletspider/mt_rust:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 4adc3d626132c6abc29c21b572e331448b0b91578ae86c55dffdde9dcfd38f02
[INFO] running `"docker" "start" "-a" "4adc3d626132c6abc29c21b572e331448b0b91578ae86c55dffdde9dcfd38f02"`
[INFO] [stderr]    Compiling mt_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `c_double`
[INFO] [stderr]  --> src/lib.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::os::raw::{c_char, c_int, c_double};
[INFO] [stderr]   |                                   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `c_double`
[INFO] [stderr]  --> src/lib.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::os::raw::{c_char, c_int, c_double};
[INFO] [stderr]   |                                   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "4adc3d626132c6abc29c21b572e331448b0b91578ae86c55dffdde9dcfd38f02"`
[INFO] running `"docker" "rm" "-f" "4adc3d626132c6abc29c21b572e331448b0b91578ae86c55dffdde9dcfd38f02"`
[INFO] [stdout] 4adc3d626132c6abc29c21b572e331448b0b91578ae86c55dffdde9dcfd38f02
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/toiletspider/mt_rust:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 979f6c45dfcbbb799446d138fd29ea5396226e402503f6a2a1358d49cda6f7fe
[INFO] running `"docker" "start" "-a" "979f6c45dfcbbb799446d138fd29ea5396226e402503f6a2a1358d49cda6f7fe"`
[INFO] [stderr]    Compiling mt_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `c_double`
[INFO] [stderr]  --> src/lib.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::os::raw::{c_char, c_int, c_double};
[INFO] [stderr]   |                                   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `c_double`
[INFO] [stderr]  --> src/lib.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::os::raw::{c_char, c_int, c_double};
[INFO] [stderr]   |                                   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "979f6c45dfcbbb799446d138fd29ea5396226e402503f6a2a1358d49cda6f7fe"`
[INFO] running `"docker" "rm" "-f" "979f6c45dfcbbb799446d138fd29ea5396226e402503f6a2a1358d49cda6f7fe"`
[INFO] [stdout] 979f6c45dfcbbb799446d138fd29ea5396226e402503f6a2a1358d49cda6f7fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/toiletspider/mt_rust:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 52c3c24da9e22bc2dad0a2666c6ddff2e1ea6819952778cff7ed4f517044fcf0
[INFO] running `"docker" "start" "-a" "52c3c24da9e22bc2dad0a2666c6ddff2e1ea6819952778cff7ed4f517044fcf0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mt_rust-2567222640830a68
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mt_rust-0745de4abf2431b8
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "52c3c24da9e22bc2dad0a2666c6ddff2e1ea6819952778cff7ed4f517044fcf0"`
[INFO] running `"docker" "rm" "-f" "52c3c24da9e22bc2dad0a2666c6ddff2e1ea6819952778cff7ed4f517044fcf0"`
[INFO] [stdout] 52c3c24da9e22bc2dad0a2666c6ddff2e1ea6819952778cff7ed4f517044fcf0