[INFO] updating cached repository not-an-aardvark/git-structured-log
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/not-an-aardvark/git-structured-log
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/not-an-aardvark/git-structured-log" "work/ex/beta-1.38-1/sources/1.37.0/gh/not-an-aardvark/git-structured-log"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/not-an-aardvark/git-structured-log'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/not-an-aardvark/git-structured-log" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/not-an-aardvark/git-structured-log"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/not-an-aardvark/git-structured-log'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c4c5f59a2d83abb7d664908782f7d905022e6037
[INFO] sha for GitHub repo not-an-aardvark/git-structured-log: c4c5f59a2d83abb7d664908782f7d905022e6037
[INFO] validating manifest of not-an-aardvark/git-structured-log 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 not-an-aardvark/git-structured-log 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 not-an-aardvark/git-structured-log
[INFO] finished frobbing not-an-aardvark/git-structured-log
[INFO] frobbed toml for not-an-aardvark/git-structured-log written to work/ex/beta-1.38-1/sources/1.37.0/gh/not-an-aardvark/git-structured-log/Cargo.toml
[INFO] started frobbing not-an-aardvark/git-structured-log
[INFO] finished frobbing not-an-aardvark/git-structured-log
[INFO] frobbed toml for not-an-aardvark/git-structured-log written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/not-an-aardvark/git-structured-log/Cargo.toml
[INFO] crate not-an-aardvark/git-structured-log 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing not-an-aardvark/git-structured-log 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/gh/not-an-aardvark/git-structured-log:/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] 471d594bd88f57c3eba4040d2a7f2d7fec2582074c5a308c2f6d3a1187ce57ec
[INFO] running `"docker" "start" "-a" "471d594bd88f57c3eba4040d2a7f2d7fec2582074c5a308c2f6d3a1187ce57ec"`
[INFO] [stderr]    Compiling curl-sys v0.4.15
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling libgit2-sys v0.7.10
[INFO] [stderr]    Compiling git2 v0.7.5
[INFO] [stderr]    Compiling git_structured_log v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:30:79
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn print_commits(revision_range: &str, formats_input: &str) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:63:50
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     .collect::<Result<Value, Box<Error>>>()?,
[INFO] [stderr]    |                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:98:64
[INFO] [stderr]    |
[INFO] [stderr] 98 | fn object_to_hex_string(object: &Object) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:111:68
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn invalid_format(format: &str, reason: &str) -> Result<Value, Box<Error>> {
[INFO] [stderr]     |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.10s
[INFO] running `"docker" "inspect" "471d594bd88f57c3eba4040d2a7f2d7fec2582074c5a308c2f6d3a1187ce57ec"`
[INFO] running `"docker" "rm" "-f" "471d594bd88f57c3eba4040d2a7f2d7fec2582074c5a308c2f6d3a1187ce57ec"`
[INFO] [stdout] 471d594bd88f57c3eba4040d2a7f2d7fec2582074c5a308c2f6d3a1187ce57ec
[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/gh/not-an-aardvark/git-structured-log:/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] b09c5cd62f00d327912e4e90954ce3ac2b1bd1852c32e1371f648664ed1c868a
[INFO] running `"docker" "start" "-a" "b09c5cd62f00d327912e4e90954ce3ac2b1bd1852c32e1371f648664ed1c868a"`
[INFO] [stderr]    Compiling git_structured_log v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:30:79
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn print_commits(revision_range: &str, formats_input: &str) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:63:50
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     .collect::<Result<Value, Box<Error>>>()?,
[INFO] [stderr]    |                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:98:64
[INFO] [stderr]    |
[INFO] [stderr] 98 | fn object_to_hex_string(object: &Object) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:111:68
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn invalid_format(format: &str, reason: &str) -> Result<Value, Box<Error>> {
[INFO] [stderr]     |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "b09c5cd62f00d327912e4e90954ce3ac2b1bd1852c32e1371f648664ed1c868a"`
[INFO] running `"docker" "rm" "-f" "b09c5cd62f00d327912e4e90954ce3ac2b1bd1852c32e1371f648664ed1c868a"`
[INFO] [stdout] b09c5cd62f00d327912e4e90954ce3ac2b1bd1852c32e1371f648664ed1c868a
[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/gh/not-an-aardvark/git-structured-log:/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] 3145aa75699e3e188576eaed06a6d478550b762948a3a32dd8791e0e4770734f
[INFO] running `"docker" "start" "-a" "3145aa75699e3e188576eaed06a6d478550b762948a3a32dd8791e0e4770734f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_structured_log-eed87d491fb52d81
[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" "3145aa75699e3e188576eaed06a6d478550b762948a3a32dd8791e0e4770734f"`
[INFO] running `"docker" "rm" "-f" "3145aa75699e3e188576eaed06a6d478550b762948a3a32dd8791e0e4770734f"`
[INFO] [stdout] 3145aa75699e3e188576eaed06a6d478550b762948a3a32dd8791e0e4770734f