[INFO] crate singleton 0.2.2 is already in cache
[INFO] testing singleton-0.2.2 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate singleton 0.2.2 into work/builds/worker-11/source
[INFO] validating manifest of crates.io crate singleton 0.2.2 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate singleton 0.2.2
[INFO] finished tweaking crates.io crate singleton 0.2.2
[INFO] tweaked toml for crates.io crate singleton 0.2.2 written to work/builds/worker-11/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] d63f7ab1df46fcda46099a6f006d4f2e29260c60116b7088b43c8de8d9b4481f
[INFO] running `"docker" "start" "-a" "d63f7ab1df46fcda46099a6f006d4f2e29260c60116b7088b43c8de8d9b4481f"`
[INFO] [stderr]    Compiling singleton v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "d63f7ab1df46fcda46099a6f006d4f2e29260c60116b7088b43c8de8d9b4481f"`
[INFO] running `"docker" "rm" "-f" "d63f7ab1df46fcda46099a6f006d4f2e29260c60116b7088b43c8de8d9b4481f"`
[INFO] [stdout] d63f7ab1df46fcda46099a6f006d4f2e29260c60116b7088b43c8de8d9b4481f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] a3bd6574b70ba34dafb1739068a007676a46c42d7d6ed610f43c942d9d36cda8
[INFO] running `"docker" "start" "-a" "a3bd6574b70ba34dafb1739068a007676a46c42d7d6ed610f43c942d9d36cda8"`
[INFO] [stderr]    Compiling singleton v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "a3bd6574b70ba34dafb1739068a007676a46c42d7d6ed610f43c942d9d36cda8"`
[INFO] running `"docker" "rm" "-f" "a3bd6574b70ba34dafb1739068a007676a46c42d7d6ed610f43c942d9d36cda8"`
[INFO] [stdout] a3bd6574b70ba34dafb1739068a007676a46c42d7d6ed610f43c942d9d36cda8
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] c02912a24340bf4533d64bcfd4efa999c1f3291c9c202a0ace50da2cd280e7a9
[INFO] running `"docker" "start" "-a" "c02912a24340bf4533d64bcfd4efa999c1f3291c9c202a0ace50da2cd280e7a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/singleton-bd902868c5e68894
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test singleton::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/trial-aa4352c7eebfb9bb
[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 singleton
[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" "c02912a24340bf4533d64bcfd4efa999c1f3291c9c202a0ace50da2cd280e7a9"`
[INFO] running `"docker" "rm" "-f" "c02912a24340bf4533d64bcfd4efa999c1f3291c9c202a0ace50da2cd280e7a9"`
[INFO] [stdout] c02912a24340bf4533d64bcfd4efa999c1f3291c9c202a0ace50da2cd280e7a9