[INFO] updating cached repository xrmx/slack-giffetteria-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xrmx/slack-giffetteria-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xrmx/slack-giffetteria-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/xrmx/slack-giffetteria-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/xrmx/slack-giffetteria-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xrmx/slack-giffetteria-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xrmx/slack-giffetteria-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xrmx/slack-giffetteria-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1bd84aa814c0a94df726c388c7c75a5513a88960
[INFO] sha for GitHub repo xrmx/slack-giffetteria-rs: 1bd84aa814c0a94df726c388c7c75a5513a88960
[INFO] validating manifest of xrmx/slack-giffetteria-rs 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 xrmx/slack-giffetteria-rs 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 xrmx/slack-giffetteria-rs
[INFO] finished frobbing xrmx/slack-giffetteria-rs
[INFO] frobbed toml for xrmx/slack-giffetteria-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/xrmx/slack-giffetteria-rs/Cargo.toml
[INFO] started frobbing xrmx/slack-giffetteria-rs
[INFO] finished frobbing xrmx/slack-giffetteria-rs
[INFO] frobbed toml for xrmx/slack-giffetteria-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xrmx/slack-giffetteria-rs/Cargo.toml
[INFO] crate xrmx/slack-giffetteria-rs 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 xrmx/slack-giffetteria-rs 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xrmx/slack-giffetteria-rs:/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] 23dbf1436a4269f4c3ecbb7533b7919b6fd956919cc16af088f284845f1073e8
[INFO] running `"docker" "start" "-a" "23dbf1436a4269f4c3ecbb7533b7919b6fd956919cc16af088f284845f1073e8"`
[INFO] [stderr]    Compiling pkg-config v0.3.8
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]    Compiling libc v0.2.19
[INFO] [stderr]    Compiling openssl-probe v0.1.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling futures v0.1.8
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling libz-sys v1.0.10
[INFO] [stderr]    Compiling curl-sys v0.3.6
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling openssl-sys v0.9.6
[INFO] [stderr]    Compiling mio v0.6.2
[INFO] [stderr]    Compiling tokio-core v0.1.3
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling tokio-proto v0.1.0
[INFO] [stderr]    Compiling tokio-minihttp v0.1.0 (https://github.com/xrmx/tokio-minihttp?rev=d9409686b2683298e3155caaa0fefc2ac185bd1b#d9409686)
[INFO] [stderr]    Compiling curl v0.4.3
[INFO] [stderr]    Compiling tokio-curl v0.1.8
[INFO] [stderr]    Compiling slack-giffetteria v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `decoded` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:52:11
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut decoded: SlackMessage;
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_decoded` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `decoded` is never read
[INFO] [stderr]   --> src/main.rs:54:15
[INFO] [stderr]    |
[INFO] [stderr] 54 |             Ok(msg) => decoded = msg,
[INFO] [stderr]    |                        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 |             Err(msg) => {
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut decoded: SlackMessage;
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `token`
[INFO] [stderr]   --> src/main.rs:19:2
[INFO] [stderr]    |
[INFO] [stderr] 19 |     token: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `team`
[INFO] [stderr]   --> src/main.rs:20:2
[INFO] [stderr]    |
[INFO] [stderr] 20 |     team: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `team_domain`
[INFO] [stderr]   --> src/main.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     team_domain: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `channel_id`
[INFO] [stderr]   --> src/main.rs:22:2
[INFO] [stderr]    |
[INFO] [stderr] 22 |     channel_id: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `channel_name`
[INFO] [stderr]   --> src/main.rs:23:2
[INFO] [stderr]    |
[INFO] [stderr] 23 |     channel_name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `user_id`
[INFO] [stderr]   --> src/main.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 24 |     user_id: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `user_name`
[INFO] [stderr]   --> src/main.rs:25:2
[INFO] [stderr]    |
[INFO] [stderr] 25 |     user_name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `command`
[INFO] [stderr]   --> src/main.rs:26:2
[INFO] [stderr]    |
[INFO] [stderr] 26 |     command: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `text`
[INFO] [stderr]   --> src/main.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     text: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `response_url`
[INFO] [stderr]   --> src/main.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     response_url: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 43s
[INFO] running `"docker" "inspect" "23dbf1436a4269f4c3ecbb7533b7919b6fd956919cc16af088f284845f1073e8"`
[INFO] running `"docker" "rm" "-f" "23dbf1436a4269f4c3ecbb7533b7919b6fd956919cc16af088f284845f1073e8"`
[INFO] [stdout] 23dbf1436a4269f4c3ecbb7533b7919b6fd956919cc16af088f284845f1073e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xrmx/slack-giffetteria-rs:/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] 9e6e0a2252b441403ebfee0103618671e1e700d2126772ddf96c202b9c228f4d
[INFO] running `"docker" "start" "-a" "9e6e0a2252b441403ebfee0103618671e1e700d2126772ddf96c202b9c228f4d"`
[INFO] [stderr]    Compiling slack-giffetteria v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `decoded` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:52:11
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut decoded: SlackMessage;
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_decoded` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `decoded` is never read
[INFO] [stderr]   --> src/main.rs:54:15
[INFO] [stderr]    |
[INFO] [stderr] 54 |             Ok(msg) => decoded = msg,
[INFO] [stderr]    |                        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 |             Err(msg) => {
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut decoded: SlackMessage;
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `token`
[INFO] [stderr]   --> src/main.rs:19:2
[INFO] [stderr]    |
[INFO] [stderr] 19 |     token: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `team`
[INFO] [stderr]   --> src/main.rs:20:2
[INFO] [stderr]    |
[INFO] [stderr] 20 |     team: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `team_domain`
[INFO] [stderr]   --> src/main.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     team_domain: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `channel_id`
[INFO] [stderr]   --> src/main.rs:22:2
[INFO] [stderr]    |
[INFO] [stderr] 22 |     channel_id: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `channel_name`
[INFO] [stderr]   --> src/main.rs:23:2
[INFO] [stderr]    |
[INFO] [stderr] 23 |     channel_name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `user_id`
[INFO] [stderr]   --> src/main.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 24 |     user_id: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `user_name`
[INFO] [stderr]   --> src/main.rs:25:2
[INFO] [stderr]    |
[INFO] [stderr] 25 |     user_name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `command`
[INFO] [stderr]   --> src/main.rs:26:2
[INFO] [stderr]    |
[INFO] [stderr] 26 |     command: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `text`
[INFO] [stderr]   --> src/main.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     text: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `response_url`
[INFO] [stderr]   --> src/main.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     response_url: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "9e6e0a2252b441403ebfee0103618671e1e700d2126772ddf96c202b9c228f4d"`
[INFO] running `"docker" "rm" "-f" "9e6e0a2252b441403ebfee0103618671e1e700d2126772ddf96c202b9c228f4d"`
[INFO] [stdout] 9e6e0a2252b441403ebfee0103618671e1e700d2126772ddf96c202b9c228f4d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xrmx/slack-giffetteria-rs:/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] 92d7f431f8097a549879d0dfcdc4072130082eca5ef12ffc7ae1359f84542b9e
[INFO] running `"docker" "start" "-a" "92d7f431f8097a549879d0dfcdc4072130082eca5ef12ffc7ae1359f84542b9e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slack_giffetteria-99ddd4c17f2a2d22
[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" "92d7f431f8097a549879d0dfcdc4072130082eca5ef12ffc7ae1359f84542b9e"`
[INFO] running `"docker" "rm" "-f" "92d7f431f8097a549879d0dfcdc4072130082eca5ef12ffc7ae1359f84542b9e"`
[INFO] [stdout] 92d7f431f8097a549879d0dfcdc4072130082eca5ef12ffc7ae1359f84542b9e