[INFO] crate c_fixed_string 0.2.0 is already in cache
[INFO] extracting crate c_fixed_string 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/c_fixed_string/0.2.0
[INFO] extracting crate c_fixed_string 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/c_fixed_string/0.2.0
[INFO] validating manifest of c_fixed_string-0.2.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of c_fixed_string-0.2.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing c_fixed_string-0.2.0
[INFO] finished frobbing c_fixed_string-0.2.0
[INFO] frobbed toml for c_fixed_string-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/c_fixed_string/0.2.0/Cargo.toml
[INFO] started frobbing c_fixed_string-0.2.0
[INFO] finished frobbing c_fixed_string-0.2.0
[INFO] frobbed toml for c_fixed_string-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/c_fixed_string/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing c_fixed_string-0.2.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/c_fixed_string/0.2.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c2d2bb51bc9e8cf32ea29f40f20d1344cc012e1aee6ec18ccb7605cdc87bb721
[INFO] running `"docker" "start" "-a" "c2d2bb51bc9e8cf32ea29f40f20d1344cc012e1aee6ec18ccb7605cdc87bb721"`
[INFO] [stderr]    Compiling c_fixed_string v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "c2d2bb51bc9e8cf32ea29f40f20d1344cc012e1aee6ec18ccb7605cdc87bb721"`
[INFO] running `"docker" "rm" "-f" "c2d2bb51bc9e8cf32ea29f40f20d1344cc012e1aee6ec18ccb7605cdc87bb721"`
[INFO] [stdout] c2d2bb51bc9e8cf32ea29f40f20d1344cc012e1aee6ec18ccb7605cdc87bb721
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/c_fixed_string/0.2.0:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b76aadf1a67a2751819d1ef8035199e8004d1a7c8b86ceb3dcf436e9109ed0e0
[INFO] running `"docker" "start" "-a" "b76aadf1a67a2751819d1ef8035199e8004d1a7c8b86ceb3dcf436e9109ed0e0"`
[INFO] [stderr]    Compiling c_fixed_string v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "b76aadf1a67a2751819d1ef8035199e8004d1a7c8b86ceb3dcf436e9109ed0e0"`
[INFO] running `"docker" "rm" "-f" "b76aadf1a67a2751819d1ef8035199e8004d1a7c8b86ceb3dcf436e9109ed0e0"`
[INFO] [stdout] b76aadf1a67a2751819d1ef8035199e8004d1a7c8b86ceb3dcf436e9109ed0e0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/c_fixed_string/0.2.0:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 3fab793970c1a9e0ddb444853b72d83c814e9095c8e97d4f87662b67c4f7131c
[INFO] running `"docker" "start" "-a" "3fab793970c1a9e0ddb444853b72d83c814e9095c8e97d4f87662b67c4f7131c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/c_fixed_string-a7f8cccc289e98ce
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test 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]    Doc-tests c_fixed_string
[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" "3fab793970c1a9e0ddb444853b72d83c814e9095c8e97d4f87662b67c4f7131c"`
[INFO] running `"docker" "rm" "-f" "3fab793970c1a9e0ddb444853b72d83c814e9095c8e97d4f87662b67c4f7131c"`
[INFO] [stdout] 3fab793970c1a9e0ddb444853b72d83c814e9095c8e97d4f87662b67c4f7131c