[INFO] updating cached repository serprex/ninja
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/serprex/ninja
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/serprex/ninja" "work/ex/beta-1.38-1/sources/1.37.0/gh/serprex/ninja"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/serprex/ninja'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/serprex/ninja" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/serprex/ninja"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/serprex/ninja'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 79ab47602ec4fa6da709f4824c1bc683efe8a84f
[INFO] sha for GitHub repo serprex/ninja: 79ab47602ec4fa6da709f4824c1bc683efe8a84f
[INFO] validating manifest of serprex/ninja 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 serprex/ninja 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 serprex/ninja
[INFO] finished frobbing serprex/ninja
[INFO] frobbed toml for serprex/ninja written to work/ex/beta-1.38-1/sources/1.37.0/gh/serprex/ninja/Cargo.toml
[INFO] started frobbing serprex/ninja
[INFO] finished frobbing serprex/ninja
[INFO] frobbed toml for serprex/ninja written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/serprex/ninja/Cargo.toml
[INFO] crate serprex/ninja 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing serprex/ninja against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/serprex/ninja:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a0b0e4217c78b372cd2a8ebe2c84116a622c8ccc349ae823eea8db65b8f40e15
[INFO] running `"docker" "start" "-a" "a0b0e4217c78b372cd2a8ebe2c84116a622c8ccc349ae823eea8db65b8f40e15"`
[INFO] [stderr]    Compiling ninja v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Pool`
[INFO] [stderr]   --> src/parser.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Pool,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Gcc`
[INFO] [stderr]   --> src/parser.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Gcc,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Msvc`
[INFO] [stderr]   --> src/parser.rs:22:2
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Msvc,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `"docker" "inspect" "a0b0e4217c78b372cd2a8ebe2c84116a622c8ccc349ae823eea8db65b8f40e15"`
[INFO] running `"docker" "rm" "-f" "a0b0e4217c78b372cd2a8ebe2c84116a622c8ccc349ae823eea8db65b8f40e15"`
[INFO] [stdout] a0b0e4217c78b372cd2a8ebe2c84116a622c8ccc349ae823eea8db65b8f40e15
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/serprex/ninja:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1671aa81924a99d41c06e675c2bc024278a3b9322b0d59e269301a7ee2fb7874
[INFO] running `"docker" "start" "-a" "1671aa81924a99d41c06e675c2bc024278a3b9322b0d59e269301a7ee2fb7874"`
[INFO] [stderr]    Compiling ninja v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Pool`
[INFO] [stderr]   --> src/parser.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Pool,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Gcc`
[INFO] [stderr]   --> src/parser.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Gcc,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Msvc`
[INFO] [stderr]   --> src/parser.rs:22:2
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Msvc,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "1671aa81924a99d41c06e675c2bc024278a3b9322b0d59e269301a7ee2fb7874"`
[INFO] running `"docker" "rm" "-f" "1671aa81924a99d41c06e675c2bc024278a3b9322b0d59e269301a7ee2fb7874"`
[INFO] [stdout] 1671aa81924a99d41c06e675c2bc024278a3b9322b0d59e269301a7ee2fb7874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/serprex/ninja:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 3d503177a742151ff0f9f29c720bec79009a5a46e221add707e73385e645cca8
[INFO] running `"docker" "start" "-a" "3d503177a742151ff0f9f29c720bec79009a5a46e221add707e73385e645cca8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ninja-c0322171d487cbc9
[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] [stderr]      Running /opt/crater/target/debug/deps/ninja-6ef72b660b21635c
[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] [stderr]    Doc-tests ninja
[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" "3d503177a742151ff0f9f29c720bec79009a5a46e221add707e73385e645cca8"`
[INFO] running `"docker" "rm" "-f" "3d503177a742151ff0f9f29c720bec79009a5a46e221add707e73385e645cca8"`
[INFO] [stdout] 3d503177a742151ff0f9f29c720bec79009a5a46e221add707e73385e645cca8