[INFO] crate dotenv-shell 1.0.1 is already in cache
[INFO] extracting crate dotenv-shell 1.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/dotenv-shell/1.0.1
[INFO] extracting crate dotenv-shell 1.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/dotenv-shell/1.0.1
[INFO] validating manifest of dotenv-shell-1.0.1 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 dotenv-shell-1.0.1 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 dotenv-shell-1.0.1
[INFO] finished frobbing dotenv-shell-1.0.1
[INFO] frobbed toml for dotenv-shell-1.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/dotenv-shell/1.0.1/Cargo.toml
[INFO] started frobbing dotenv-shell-1.0.1
[INFO] finished frobbing dotenv-shell-1.0.1
[INFO] frobbed toml for dotenv-shell-1.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/dotenv-shell/1.0.1/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 dotenv-shell-1.0.1 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/dotenv-shell/1.0.1:/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] b59ac5385867444ab84ecb1add1c29b705a5157426fcdc5956e29d901dfed2eb
[INFO] running `"docker" "start" "-a" "b59ac5385867444ab84ecb1add1c29b705a5157426fcdc5956e29d901dfed2eb"`
[INFO] [stderr]    Compiling dotenv v0.8.0
[INFO] [stderr]    Compiling dotenv-shell v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `libc::c_char`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use libc::c_char;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "b59ac5385867444ab84ecb1add1c29b705a5157426fcdc5956e29d901dfed2eb"`
[INFO] running `"docker" "rm" "-f" "b59ac5385867444ab84ecb1add1c29b705a5157426fcdc5956e29d901dfed2eb"`
[INFO] [stdout] b59ac5385867444ab84ecb1add1c29b705a5157426fcdc5956e29d901dfed2eb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/dotenv-shell/1.0.1:/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] 920d2e1c90cb1a590fb0458962f934f61f01eb1595bcff35452b6b29936bb5b9
[INFO] running `"docker" "start" "-a" "920d2e1c90cb1a590fb0458962f934f61f01eb1595bcff35452b6b29936bb5b9"`
[INFO] [stderr]    Compiling dotenv-shell v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `libc::c_char`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use libc::c_char;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "920d2e1c90cb1a590fb0458962f934f61f01eb1595bcff35452b6b29936bb5b9"`
[INFO] running `"docker" "rm" "-f" "920d2e1c90cb1a590fb0458962f934f61f01eb1595bcff35452b6b29936bb5b9"`
[INFO] [stdout] 920d2e1c90cb1a590fb0458962f934f61f01eb1595bcff35452b6b29936bb5b9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/dotenv-shell/1.0.1:/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] 6d90ea96f49366408bb362c52b5edac065b335f47c715e73546933c950a3f94a
[INFO] running `"docker" "start" "-a" "6d90ea96f49366408bb362c52b5edac065b335f47c715e73546933c950a3f94a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dotenv_shell-b86a6f6b45a7315a
[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" "6d90ea96f49366408bb362c52b5edac065b335f47c715e73546933c950a3f94a"`
[INFO] running `"docker" "rm" "-f" "6d90ea96f49366408bb362c52b5edac065b335f47c715e73546933c950a3f94a"`
[INFO] [stdout] 6d90ea96f49366408bb362c52b5edac065b335f47c715e73546933c950a3f94a