[INFO] updating cached repository xurtis/show_elo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xurtis/show_elo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xurtis/show_elo" "work/ex/beta-1.38-1/sources/1.37.0/gh/xurtis/show_elo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/xurtis/show_elo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xurtis/show_elo" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xurtis/show_elo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xurtis/show_elo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 63becbb0171b26ae32fb616b234f05eea0b32770
[INFO] sha for GitHub repo xurtis/show_elo: 63becbb0171b26ae32fb616b234f05eea0b32770
[INFO] validating manifest of xurtis/show_elo on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xurtis/show_elo on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xurtis/show_elo
[INFO] finished frobbing xurtis/show_elo
[INFO] frobbed toml for xurtis/show_elo written to work/ex/beta-1.38-1/sources/1.37.0/gh/xurtis/show_elo/Cargo.toml
[INFO] started frobbing xurtis/show_elo
[INFO] finished frobbing xurtis/show_elo
[INFO] frobbed toml for xurtis/show_elo written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xurtis/show_elo/Cargo.toml
[INFO] crate xurtis/show_elo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing xurtis/show_elo against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xurtis/show_elo:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 122dd003366c5240c9fbe2066d84f2bc47232605e277ee7c0082502e7830a164
[INFO] running `"docker" "start" "-a" "122dd003366c5240c9fbe2066d84f2bc47232605e277ee7c0082502e7830a164"`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling show_elo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::thread::sleep;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.75s
[INFO] running `"docker" "inspect" "122dd003366c5240c9fbe2066d84f2bc47232605e277ee7c0082502e7830a164"`
[INFO] running `"docker" "rm" "-f" "122dd003366c5240c9fbe2066d84f2bc47232605e277ee7c0082502e7830a164"`
[INFO] [stdout] 122dd003366c5240c9fbe2066d84f2bc47232605e277ee7c0082502e7830a164
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xurtis/show_elo:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] ebd240213f2c5c28c54f168ee0281dd7aab64392b31eb4964cb3949b506d37a6
[INFO] running `"docker" "start" "-a" "ebd240213f2c5c28c54f168ee0281dd7aab64392b31eb4964cb3949b506d37a6"`
[INFO] [stderr]    Compiling show_elo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::thread::sleep;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "ebd240213f2c5c28c54f168ee0281dd7aab64392b31eb4964cb3949b506d37a6"`
[INFO] running `"docker" "rm" "-f" "ebd240213f2c5c28c54f168ee0281dd7aab64392b31eb4964cb3949b506d37a6"`
[INFO] [stdout] ebd240213f2c5c28c54f168ee0281dd7aab64392b31eb4964cb3949b506d37a6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xurtis/show_elo:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 4521ba163be30478b28402474c022a32f09bccc854c83bfa63a15d4a4ea96410
[INFO] running `"docker" "start" "-a" "4521ba163be30478b28402474c022a32f09bccc854c83bfa63a15d4a4ea96410"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/show_elo-f62d875cab76d4e3
[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" "4521ba163be30478b28402474c022a32f09bccc854c83bfa63a15d4a4ea96410"`
[INFO] running `"docker" "rm" "-f" "4521ba163be30478b28402474c022a32f09bccc854c83bfa63a15d4a4ea96410"`
[INFO] [stdout] 4521ba163be30478b28402474c022a32f09bccc854c83bfa63a15d4a4ea96410