[INFO] crate is-rust 0.1.0 is already in cache
[INFO] extracting crate is-rust 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/is-rust/0.1.0
[INFO] extracting crate is-rust 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/is-rust/0.1.0
[INFO] validating manifest of is-rust-0.1.0 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 is-rust-0.1.0 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 is-rust-0.1.0
[INFO] finished frobbing is-rust-0.1.0
[INFO] frobbed toml for is-rust-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/is-rust/0.1.0/Cargo.toml
[INFO] started frobbing is-rust-0.1.0
[INFO] finished frobbing is-rust-0.1.0
[INFO] frobbed toml for is-rust-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/is-rust/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 is-rust-0.1.0 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/is-rust/0.1.0:/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] e0f2aa76d12e550870aaf5193e6394c354c4ce60ab4ab8dc3f646424cfc392b9
[INFO] running `"docker" "start" "-a" "e0f2aa76d12e550870aaf5193e6394c354c4ce60ab4ab8dc3f646424cfc392b9"`
[INFO] [stderr]    Compiling is-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "e0f2aa76d12e550870aaf5193e6394c354c4ce60ab4ab8dc3f646424cfc392b9"`
[INFO] running `"docker" "rm" "-f" "e0f2aa76d12e550870aaf5193e6394c354c4ce60ab4ab8dc3f646424cfc392b9"`
[INFO] [stdout] e0f2aa76d12e550870aaf5193e6394c354c4ce60ab4ab8dc3f646424cfc392b9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/is-rust/0.1.0:/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] 687f4004d6a53fe16fd5362aeaf050dfc64b1de083cbfb784f8d349d2e278910
[INFO] running `"docker" "start" "-a" "687f4004d6a53fe16fd5362aeaf050dfc64b1de083cbfb784f8d349d2e278910"`
[INFO] [stderr]    Compiling is-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "687f4004d6a53fe16fd5362aeaf050dfc64b1de083cbfb784f8d349d2e278910"`
[INFO] running `"docker" "rm" "-f" "687f4004d6a53fe16fd5362aeaf050dfc64b1de083cbfb784f8d349d2e278910"`
[INFO] [stdout] 687f4004d6a53fe16fd5362aeaf050dfc64b1de083cbfb784f8d349d2e278910
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/is-rust/0.1.0:/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] a78436b9dbc535d5f9b4239f84bf182fad730933d8b72b2ea391077e9cc7cf16
[INFO] running `"docker" "start" "-a" "a78436b9dbc535d5f9b4239f84bf182fad730933d8b72b2ea391077e9cc7cf16"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/is_rust-4be89c14ddef7533
[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 is-rust
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs -  (line 9) ... ignored
[INFO] [stdout] test src/lib.rs - is_at_least_rusty (line 180) ... ok
[INFO] [stdout] test src/lib.rs -  (line 37) ... ok
[INFO] [stdout] test src/lib.rs -  (line 55) ... ok
[INFO] [stdout] test src/lib.rs -  (line 63) ... ok
[INFO] [stdout] test src/lib.rs -  (line 81) ... ok
[INFO] [stdout] test src/lib.rs -  (line 71) ... ok
[INFO] [stdout] test src/lib.rs -  (line 89) ... ok
[INFO] [stdout] test src/lib.rs -  (line 45) ... ok
[INFO] [stdout] test src/lib.rs - is_not_rust (line 216) ... ok
[INFO] [stdout] test src/lib.rs - is_rust (line 127) ... ok
[INFO] [stdout] test src/lib.rs - is_rust (line 135) ... ok
[INFO] [stdout] test src/lib.rs - is_rusty (line 158) ... ok
[INFO] [stdout] test src/lib.rs - is_rusty (line 164) ... ok
[INFO] [stdout] test src/lib.rs - is_very_rusty (line 200) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a78436b9dbc535d5f9b4239f84bf182fad730933d8b72b2ea391077e9cc7cf16"`
[INFO] running `"docker" "rm" "-f" "a78436b9dbc535d5f9b4239f84bf182fad730933d8b72b2ea391077e9cc7cf16"`
[INFO] [stdout] a78436b9dbc535d5f9b4239f84bf182fad730933d8b72b2ea391077e9cc7cf16