[INFO] updating cached repository atsushi130/attendance-bot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/atsushi130/attendance-bot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/atsushi130/attendance-bot" "work/ex/beta-1.38-1/sources/1.37.0/gh/atsushi130/attendance-bot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/atsushi130/attendance-bot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/atsushi130/attendance-bot" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/atsushi130/attendance-bot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/atsushi130/attendance-bot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 44c73989286e0fbc93bfa2025e76a2ea4f94ae11
[INFO] sha for GitHub repo atsushi130/attendance-bot: 44c73989286e0fbc93bfa2025e76a2ea4f94ae11
[INFO] validating manifest of atsushi130/attendance-bot 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 atsushi130/attendance-bot 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 atsushi130/attendance-bot
[INFO] finished frobbing atsushi130/attendance-bot
[INFO] frobbed toml for atsushi130/attendance-bot written to work/ex/beta-1.38-1/sources/1.37.0/gh/atsushi130/attendance-bot/Cargo.toml
[INFO] started frobbing atsushi130/attendance-bot
[INFO] finished frobbing atsushi130/attendance-bot
[INFO] frobbed toml for atsushi130/attendance-bot written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/atsushi130/attendance-bot/Cargo.toml
[INFO] crate atsushi130/attendance-bot 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 atsushi130/attendance-bot 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/atsushi130/attendance-bot:/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] ad5b0e9fc3f689a806cd3c7d9ac9d40d304ae26d7dff7697b50039471362d14a
[INFO] running `"docker" "start" "-a" "ad5b0e9fc3f689a806cd3c7d9ac9d40d304ae26d7dff7697b50039471362d14a"`
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling serde_urlencoded v0.4.3
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling tungstenite v0.2.4
[INFO] [stderr]    Compiling hyper-native-tls v0.2.4
[INFO] [stderr]    Compiling reqwest v0.4.0
[INFO] [stderr]    Compiling slack_api v0.18.0
[INFO] [stderr]    Compiling slack v0.19.0
[INFO] [stderr]    Compiling attendance_bot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `from_id`
[INFO] [stderr]   --> src/attendance_bot/attendance_type.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn from_id(id: i64) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.86s
[INFO] running `"docker" "inspect" "ad5b0e9fc3f689a806cd3c7d9ac9d40d304ae26d7dff7697b50039471362d14a"`
[INFO] running `"docker" "rm" "-f" "ad5b0e9fc3f689a806cd3c7d9ac9d40d304ae26d7dff7697b50039471362d14a"`
[INFO] [stdout] ad5b0e9fc3f689a806cd3c7d9ac9d40d304ae26d7dff7697b50039471362d14a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/atsushi130/attendance-bot:/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] 7f799a2df20df68b963deed0def067985ec5992a097cb0dced15a23c4bf911d0
[INFO] running `"docker" "start" "-a" "7f799a2df20df68b963deed0def067985ec5992a097cb0dced15a23c4bf911d0"`
[INFO] [stderr]    Compiling attendance_bot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `from_id`
[INFO] [stderr]   --> src/attendance_bot/attendance_type.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn from_id(id: i64) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "7f799a2df20df68b963deed0def067985ec5992a097cb0dced15a23c4bf911d0"`
[INFO] running `"docker" "rm" "-f" "7f799a2df20df68b963deed0def067985ec5992a097cb0dced15a23c4bf911d0"`
[INFO] [stdout] 7f799a2df20df68b963deed0def067985ec5992a097cb0dced15a23c4bf911d0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/atsushi130/attendance-bot:/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] 73941cfd76581b3873d8060fc790ec9252be4b7989ee601d7bb3f4ce3aeb125e
[INFO] running `"docker" "start" "-a" "73941cfd76581b3873d8060fc790ec9252be4b7989ee601d7bb3f4ce3aeb125e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/attendance_bot-49f011340227303e
[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" "73941cfd76581b3873d8060fc790ec9252be4b7989ee601d7bb3f4ce3aeb125e"`
[INFO] running `"docker" "rm" "-f" "73941cfd76581b3873d8060fc790ec9252be4b7989ee601d7bb3f4ce3aeb125e"`
[INFO] [stdout] 73941cfd76581b3873d8060fc790ec9252be4b7989ee601d7bb3f4ce3aeb125e