[INFO] updating cached repository KhanhML/khanhml.github.io
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KhanhML/khanhml.github.io
[INFO] [stderr]  * branch              HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KhanhML/khanhml.github.io" "work/ex/beta-1.38-1/sources/1.37.0/gh/KhanhML/khanhml.github.io"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/KhanhML/khanhml.github.io'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KhanhML/khanhml.github.io" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KhanhML/khanhml.github.io"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KhanhML/khanhml.github.io'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 761cc8fd3e1942d56947b35dbc0d97190a885fff
[INFO] sha for GitHub repo KhanhML/khanhml.github.io: 761cc8fd3e1942d56947b35dbc0d97190a885fff
[INFO] validating manifest of KhanhML/khanhml.github.io 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 KhanhML/khanhml.github.io 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 KhanhML/khanhml.github.io
[INFO] finished frobbing KhanhML/khanhml.github.io
[INFO] frobbed toml for KhanhML/khanhml.github.io written to work/ex/beta-1.38-1/sources/1.37.0/gh/KhanhML/khanhml.github.io/Cargo.toml
[INFO] started frobbing KhanhML/khanhml.github.io
[INFO] finished frobbing KhanhML/khanhml.github.io
[INFO] frobbed toml for KhanhML/khanhml.github.io written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KhanhML/khanhml.github.io/Cargo.toml
[INFO] crate KhanhML/khanhml.github.io 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 KhanhML/khanhml.github.io 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KhanhML/khanhml.github.io:/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] 615a99c6a38d9ec00e055fac2ac56144eb85bc68bfbab2077108d3ecd0fe765d
[INFO] running `"docker" "start" "-a" "615a99c6a38d9ec00e055fac2ac56144eb85bc68bfbab2077108d3ecd0fe765d"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]    Compiling syn v0.13.10
[INFO] [stderr]    Compiling pest_derive v1.0.7
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling derive-error-chain v0.11.1
[INFO] [stderr]    Compiling comrak v0.2.12
[INFO] [stderr]    Compiling backtrace v0.3.7
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling dotenv v0.11.0
[INFO] [stderr]    Compiling quick-xml v0.12.1
[INFO] [stderr]    Compiling rss v1.5.0
[INFO] [stderr]    Compiling generator-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `domain_name`
[INFO] [stderr]    --> src/main.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let domain_name = env::var("DOMAIN_NAME").unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_domain_name`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:277:33
[INFO] [stderr]     |
[INFO] [stderr] 277 |                             let mut tag_posts = shared.tags.get_mut(&format!("{}", tag)).unwrap();
[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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:248:5
[INFO] [stderr]     |
[INFO] [stderr] 248 |     output_file.write_all(channel.to_string().as_bytes());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.14s
[INFO] running `"docker" "inspect" "615a99c6a38d9ec00e055fac2ac56144eb85bc68bfbab2077108d3ecd0fe765d"`
[INFO] running `"docker" "rm" "-f" "615a99c6a38d9ec00e055fac2ac56144eb85bc68bfbab2077108d3ecd0fe765d"`
[INFO] [stdout] 615a99c6a38d9ec00e055fac2ac56144eb85bc68bfbab2077108d3ecd0fe765d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KhanhML/khanhml.github.io:/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] 1ec2aa7fc8d399cb4a2b7971afa163962395e07176a9d2f3de4504d469a275e9
[INFO] running `"docker" "start" "-a" "1ec2aa7fc8d399cb4a2b7971afa163962395e07176a9d2f3de4504d469a275e9"`
[INFO] [stderr]    Compiling generator-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `domain_name`
[INFO] [stderr]    --> src/main.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let domain_name = env::var("DOMAIN_NAME").unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_domain_name`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:277:33
[INFO] [stderr]     |
[INFO] [stderr] 277 |                             let mut tag_posts = shared.tags.get_mut(&format!("{}", tag)).unwrap();
[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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:248:5
[INFO] [stderr]     |
[INFO] [stderr] 248 |     output_file.write_all(channel.to_string().as_bytes());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "1ec2aa7fc8d399cb4a2b7971afa163962395e07176a9d2f3de4504d469a275e9"`
[INFO] running `"docker" "rm" "-f" "1ec2aa7fc8d399cb4a2b7971afa163962395e07176a9d2f3de4504d469a275e9"`
[INFO] [stdout] 1ec2aa7fc8d399cb4a2b7971afa163962395e07176a9d2f3de4504d469a275e9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KhanhML/khanhml.github.io:/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] 3f605ee2c0bfbeea6d09c27baab59fb2c8a05ff6c755164dc31e163b84d40c32
[INFO] running `"docker" "start" "-a" "3f605ee2c0bfbeea6d09c27baab59fb2c8a05ff6c755164dc31e163b84d40c32"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/generator_rs-1ba2d82d58907e9a
[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" "3f605ee2c0bfbeea6d09c27baab59fb2c8a05ff6c755164dc31e163b84d40c32"`
[INFO] running `"docker" "rm" "-f" "3f605ee2c0bfbeea6d09c27baab59fb2c8a05ff6c755164dc31e163b84d40c32"`
[INFO] [stdout] 3f605ee2c0bfbeea6d09c27baab59fb2c8a05ff6c755164dc31e163b84d40c32