[INFO] updating cached repository tetigi/watson
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tetigi/watson
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tetigi/watson" "work/ex/beta-1.38-1/sources/1.37.0/gh/tetigi/watson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tetigi/watson'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tetigi/watson" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tetigi/watson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tetigi/watson'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 919ef47de6223819c58d6c3be0139386d5dfbdc9
[INFO] sha for GitHub repo tetigi/watson: 919ef47de6223819c58d6c3be0139386d5dfbdc9
[INFO] validating manifest of tetigi/watson 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 tetigi/watson 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 tetigi/watson
[INFO] finished frobbing tetigi/watson
[INFO] frobbed toml for tetigi/watson written to work/ex/beta-1.38-1/sources/1.37.0/gh/tetigi/watson/Cargo.toml
[INFO] started frobbing tetigi/watson
[INFO] finished frobbing tetigi/watson
[INFO] frobbed toml for tetigi/watson written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tetigi/watson/Cargo.toml
[INFO] crate tetigi/watson 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 tetigi/watson 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/tetigi/watson:/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] c232c2090dc2820bef22c1798e9b8044ad55f28ecea5ef7cf49a509d49a799f2
[INFO] running `"docker" "start" "-a" "c232c2090dc2820bef22c1798e9b8044ad55f28ecea5ef7cf49a509d49a799f2"`
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling openssl-sys v0.9.48
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling sct v0.4.0
[INFO] [stderr]    Compiling webpki v0.18.1
[INFO] [stderr]    Compiling rustls v0.13.1
[INFO] [stderr]    Compiling webpki-roots v0.15.0
[INFO] [stderr]    Compiling hyper-native-tls v0.3.0
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling hyper-rustls v0.6.2
[INFO] [stderr]    Compiling yup-oauth2 v1.0.11
[INFO] [stderr]    Compiling google-calendar3 v1.0.10+20190702
[INFO] [stderr]    Compiling watson v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `hyper::client::response::Response`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use hyper::client::response::Response;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opt`
[INFO] [stderr]    --> src/main.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let opt = Opt::from_args();
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_opt`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `from`
[INFO] [stderr]   --> src/main.rs:55:26
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn get_events(&self, from: &str, until: &str) -> Vec<Event> {
[INFO] [stderr]    |                          ^^^^ help: consider prefixing with an underscore: `_from`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `until`
[INFO] [stderr]   --> src/main.rs:55:38
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn get_events(&self, from: &str, until: &str) -> Vec<Event> {
[INFO] [stderr]    |                                      ^^^^^ help: consider prefixing with an underscore: `_until`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `hub`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     hub: CalendarHub,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `"docker" "inspect" "c232c2090dc2820bef22c1798e9b8044ad55f28ecea5ef7cf49a509d49a799f2"`
[INFO] running `"docker" "rm" "-f" "c232c2090dc2820bef22c1798e9b8044ad55f28ecea5ef7cf49a509d49a799f2"`
[INFO] [stdout] c232c2090dc2820bef22c1798e9b8044ad55f28ecea5ef7cf49a509d49a799f2
[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/tetigi/watson:/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] e667febf8446157730ee9940a10a30e53722a3ef8840de8343a918d48d68ed1c
[INFO] running `"docker" "start" "-a" "e667febf8446157730ee9940a10a30e53722a3ef8840de8343a918d48d68ed1c"`
[INFO] [stderr]    Compiling watson v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `hyper::client::response::Response`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use hyper::client::response::Response;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/main.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opt`
[INFO] [stderr]    --> src/main.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let opt = Opt::from_args();
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_opt`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `from`
[INFO] [stderr]   --> src/main.rs:55:26
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn get_events(&self, from: &str, until: &str) -> Vec<Event> {
[INFO] [stderr]    |                          ^^^^ help: consider prefixing with an underscore: `_from`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `until`
[INFO] [stderr]   --> src/main.rs:55:38
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn get_events(&self, from: &str, until: &str) -> Vec<Event> {
[INFO] [stderr]    |                                      ^^^^^ help: consider prefixing with an underscore: `_until`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `hub`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     hub: CalendarHub,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `"docker" "inspect" "e667febf8446157730ee9940a10a30e53722a3ef8840de8343a918d48d68ed1c"`
[INFO] running `"docker" "rm" "-f" "e667febf8446157730ee9940a10a30e53722a3ef8840de8343a918d48d68ed1c"`
[INFO] [stdout] e667febf8446157730ee9940a10a30e53722a3ef8840de8343a918d48d68ed1c
[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/tetigi/watson:/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] f8021f3d6dbbebc248046240901410ea2e6e9b25e1f834d93c26ebb0f493dcef
[INFO] running `"docker" "start" "-a" "f8021f3d6dbbebc248046240901410ea2e6e9b25e1f834d93c26ebb0f493dcef"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/watson-1c731feaea1910f1
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_stub ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f8021f3d6dbbebc248046240901410ea2e6e9b25e1f834d93c26ebb0f493dcef"`
[INFO] running `"docker" "rm" "-f" "f8021f3d6dbbebc248046240901410ea2e6e9b25e1f834d93c26ebb0f493dcef"`
[INFO] [stdout] f8021f3d6dbbebc248046240901410ea2e6e9b25e1f834d93c26ebb0f493dcef