[INFO] crate slack-hook 0.8.0 is already in cache
[INFO] extracting crate slack-hook 0.8.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/slack-hook/0.8.0
[INFO] extracting crate slack-hook 0.8.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slack-hook/0.8.0
[INFO] validating manifest of slack-hook-0.8.0 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 slack-hook-0.8.0 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 slack-hook-0.8.0
[INFO] finished frobbing slack-hook-0.8.0
[INFO] frobbed toml for slack-hook-0.8.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/slack-hook/0.8.0/Cargo.toml
[INFO] started frobbing slack-hook-0.8.0
[INFO] finished frobbing slack-hook-0.8.0
[INFO] frobbed toml for slack-hook-0.8.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slack-hook/0.8.0/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 slack-hook-0.8.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slack-hook/0.8.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 68b9d157c6e47d34b747b671d94d5a22f76d6fc063fef3cfbb323721758fb3f1
[INFO] running `"docker" "start" "-a" "68b9d157c6e47d34b747b671d94d5a22f76d6fc063fef3cfbb323721758fb3f1"`
[INFO] [stderr]    Compiling slack-hook v0.8.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / error_chain! {
[INFO] [stderr] 2  | |     foreign_links {
[INFO] [stderr] 3  | |         Utf8(::std::str::Utf8Error) #[doc = "utf8 error, slack responses should be valid utf8"];
[INFO] [stderr] 4  | |         Serialize(::serde_json::error::Error) #[doc = "`serde_json::error::Error`"];
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |     }
[INFO] [stderr] 23 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / error_chain! {
[INFO] [stderr] 2  | |     foreign_links {
[INFO] [stderr] 3  | |         Utf8(::std::str::Utf8Error) #[doc = "utf8 error, slack responses should be valid utf8"];
[INFO] [stderr] 4  | |         Serialize(::serde_json::error::Error) #[doc = "`serde_json::error::Error`"];
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |     }
[INFO] [stderr] 23 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `"docker" "inspect" "68b9d157c6e47d34b747b671d94d5a22f76d6fc063fef3cfbb323721758fb3f1"`
[INFO] running `"docker" "rm" "-f" "68b9d157c6e47d34b747b671d94d5a22f76d6fc063fef3cfbb323721758fb3f1"`
[INFO] [stdout] 68b9d157c6e47d34b747b671d94d5a22f76d6fc063fef3cfbb323721758fb3f1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slack-hook/0.8.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 07cda88bc1b8f342976801c13f8816acdc15df57379fc69a1e3198c72b44144b
[INFO] running `"docker" "start" "-a" "07cda88bc1b8f342976801c13f8816acdc15df57379fc69a1e3198c72b44144b"`
[INFO] [stderr]    Compiling slack-hook v0.8.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / error_chain! {
[INFO] [stderr] 2  | |     foreign_links {
[INFO] [stderr] 3  | |         Utf8(::std::str::Utf8Error) #[doc = "utf8 error, slack responses should be valid utf8"];
[INFO] [stderr] 4  | |         Serialize(::serde_json::error::Error) #[doc = "`serde_json::error::Error`"];
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |     }
[INFO] [stderr] 23 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:3:24
[INFO] [stderr]    |
[INFO] [stderr] 3  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / error_chain! {
[INFO] [stderr] 2  | |     foreign_links {
[INFO] [stderr] 3  | |         Utf8(::std::str::Utf8Error) #[doc = "utf8 error, slack responses should be valid utf8"];
[INFO] [stderr] 4  | |         Serialize(::serde_json::error::Error) #[doc = "`serde_json::error::Error`"];
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |     }
[INFO] [stderr] 23 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.13s
[INFO] running `"docker" "inspect" "07cda88bc1b8f342976801c13f8816acdc15df57379fc69a1e3198c72b44144b"`
[INFO] running `"docker" "rm" "-f" "07cda88bc1b8f342976801c13f8816acdc15df57379fc69a1e3198c72b44144b"`
[INFO] [stdout] 07cda88bc1b8f342976801c13f8816acdc15df57379fc69a1e3198c72b44144b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slack-hook/0.8.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 57d1c09b8113d90e850157291417e020bc24d63a947f845a0ac1b35b0ca316eb
[INFO] running `"docker" "start" "-a" "57d1c09b8113d90e850157291417e020bc24d63a947f845a0ac1b35b0ca316eb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slack_hook-a0872d25bfc0eb30
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test hex::test::test_hex_color_danger_str ... ok
[INFO] [stdout] test hex::test::test_hex_color_good ... ok
[INFO] [stdout] test hex::test::test_hex_color_3_char_hex ... ok
[INFO] [stdout] test slack::test::json_message_payload_test ... ok
[INFO] [stdout] test slack::test::json_slacklink_test ... ok
[INFO] [stdout] test slack::test::json_complete_payload_test ... ok
[INFO] [stdout] test hex::test::test_hex_color_valid_lower_hex ... ok
[INFO] [stdout] test hex::test::test_hex_color_valid_upper_hex ... ok
[INFO] [stdout] test slack::test::slack_link_test ... ok
[INFO] [stdout] test slack::test::slack_text_content_test ... ok
[INFO] [stdout] test slack::test::slack_text_test ... ok
[INFO] [stdout] test slack::test::slack_incoming_url_test ... ok
[INFO] [stdout] test hex::test::test_hex_color_too_short ... ok
[INFO] [stdout] test hex::test::test_hex_color_invalid_hex_fmt ... ok
[INFO] [stdout] test hex::test::test_hex_color_missing_hash ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slack-hook
[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" "57d1c09b8113d90e850157291417e020bc24d63a947f845a0ac1b35b0ca316eb"`
[INFO] running `"docker" "rm" "-f" "57d1c09b8113d90e850157291417e020bc24d63a947f845a0ac1b35b0ca316eb"`
[INFO] [stdout] 57d1c09b8113d90e850157291417e020bc24d63a947f845a0ac1b35b0ca316eb