[INFO] updating cached repository GitaiQAQ/SimpleWebServer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GitaiQAQ/SimpleWebServer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GitaiQAQ/SimpleWebServer" "work/ex/beta-1.38-1/sources/1.37.0/gh/GitaiQAQ/SimpleWebServer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/GitaiQAQ/SimpleWebServer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GitaiQAQ/SimpleWebServer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GitaiQAQ/SimpleWebServer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GitaiQAQ/SimpleWebServer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 46179c9a0cd0a122fc6f66ad7d9b566904cb9b89
[INFO] sha for GitHub repo GitaiQAQ/SimpleWebServer: 46179c9a0cd0a122fc6f66ad7d9b566904cb9b89
[INFO] validating manifest of GitaiQAQ/SimpleWebServer 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 GitaiQAQ/SimpleWebServer 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 GitaiQAQ/SimpleWebServer
[INFO] finished frobbing GitaiQAQ/SimpleWebServer
[INFO] frobbed toml for GitaiQAQ/SimpleWebServer written to work/ex/beta-1.38-1/sources/1.37.0/gh/GitaiQAQ/SimpleWebServer/Cargo.toml
[INFO] started frobbing GitaiQAQ/SimpleWebServer
[INFO] finished frobbing GitaiQAQ/SimpleWebServer
[INFO] frobbed toml for GitaiQAQ/SimpleWebServer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GitaiQAQ/SimpleWebServer/Cargo.toml
[INFO] crate GitaiQAQ/SimpleWebServer 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] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/GitaiQAQ/SimpleWebServer/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 GitaiQAQ/SimpleWebServer 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-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GitaiQAQ/SimpleWebServer:/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] a43a8002e6f1c8af828f856ac28b0e0b2c8b95077aaf9be2fcb96f7a3f678e2d
[INFO] running `"docker" "start" "-a" "a43a8002e6f1c8af828f856ac28b0e0b2c8b95077aaf9be2fcb96f7a3f678e2d"`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling simplewebserver v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | #![feature(bufreader_buffer)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HeaderName`
[INFO] [stderr]   --> src/simplewebserver/request.rs:30:29
[INFO] [stderr]    |
[INFO] [stderr] 30 | use super::header::{Header, HeaderName};
[INFO] [stderr]    |                             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/simplewebserver/request.rs:122:14
[INFO] [stderr]     |
[INFO] [stderr] 122 |             .trim_left_matches("@")
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `simplewebserver`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a43a8002e6f1c8af828f856ac28b0e0b2c8b95077aaf9be2fcb96f7a3f678e2d"`
[INFO] running `"docker" "rm" "-f" "a43a8002e6f1c8af828f856ac28b0e0b2c8b95077aaf9be2fcb96f7a3f678e2d"`
[INFO] [stdout] a43a8002e6f1c8af828f856ac28b0e0b2c8b95077aaf9be2fcb96f7a3f678e2d