[INFO] crate gitdb 0.1.1 is already in cache
[INFO] extracting crate gitdb 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/gitdb/0.1.1
[INFO] extracting crate gitdb 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/gitdb/0.1.1
[INFO] validating manifest of gitdb-0.1.1 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 gitdb-0.1.1 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 gitdb-0.1.1
[INFO] finished frobbing gitdb-0.1.1
[INFO] frobbed toml for gitdb-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/gitdb/0.1.1/Cargo.toml
[INFO] started frobbing gitdb-0.1.1
[INFO] finished frobbing gitdb-0.1.1
[INFO] frobbed toml for gitdb-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/gitdb/0.1.1/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 gitdb-0.1.1 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gitdb/0.1.1:/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] 290fb76feaa1134239d4cff10cdb362c5992d898d991800d2d4aeed462f72086
[INFO] running `"docker" "start" "-a" "290fb76feaa1134239d4cff10cdb362c5992d898d991800d2d4aeed462f72086"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]    Compiling gitdb v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `obscure_input`
[INFO] [stderr]    --> src/crypto.rs:203:33
[INFO] [stderr]     |
[INFO] [stderr] 203 | pub fn read_stdin(prompt: &str, obscure_input: bool) -> Result<String, String> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_obscure_input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.34s
[INFO] running `"docker" "inspect" "290fb76feaa1134239d4cff10cdb362c5992d898d991800d2d4aeed462f72086"`
[INFO] running `"docker" "rm" "-f" "290fb76feaa1134239d4cff10cdb362c5992d898d991800d2d4aeed462f72086"`
[INFO] [stdout] 290fb76feaa1134239d4cff10cdb362c5992d898d991800d2d4aeed462f72086
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gitdb/0.1.1:/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] f7dd9d6326f38023521a83a9b6f6677d89ffab408033a1db0c97df0758680168
[INFO] running `"docker" "start" "-a" "f7dd9d6326f38023521a83a9b6f6677d89ffab408033a1db0c97df0758680168"`
[INFO] [stderr]    Compiling gitdb v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `obscure_input`
[INFO] [stderr]    --> src/crypto.rs:203:33
[INFO] [stderr]     |
[INFO] [stderr] 203 | pub fn read_stdin(prompt: &str, obscure_input: bool) -> Result<String, String> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_obscure_input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `"docker" "inspect" "f7dd9d6326f38023521a83a9b6f6677d89ffab408033a1db0c97df0758680168"`
[INFO] running `"docker" "rm" "-f" "f7dd9d6326f38023521a83a9b6f6677d89ffab408033a1db0c97df0758680168"`
[INFO] [stdout] f7dd9d6326f38023521a83a9b6f6677d89ffab408033a1db0c97df0758680168
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gitdb/0.1.1:/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] 98f029284d59d912d9e1bc9e97e4ed005b49d4a303aad587d746f7ccaa56acfd
[INFO] running `"docker" "start" "-a" "98f029284d59d912d9e1bc9e97e4ed005b49d4a303aad587d746f7ccaa56acfd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gitdb-23d1f72b79801b7a
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests gitdb
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "98f029284d59d912d9e1bc9e97e4ed005b49d4a303aad587d746f7ccaa56acfd"`
[INFO] running `"docker" "rm" "-f" "98f029284d59d912d9e1bc9e97e4ed005b49d4a303aad587d746f7ccaa56acfd"`
[INFO] [stdout] 98f029284d59d912d9e1bc9e97e4ed005b49d4a303aad587d746f7ccaa56acfd