[INFO] updating cached repository maretekent/myserver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/maretekent/myserver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/maretekent/myserver" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/maretekent/myserver"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/maretekent/myserver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/maretekent/myserver" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/maretekent/myserver"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/maretekent/myserver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 080b8364d593dc758e15a1fefce675ef112c0947
[INFO] sha for GitHub repo maretekent/myserver: 080b8364d593dc758e15a1fefce675ef112c0947
[INFO] validating manifest of maretekent/myserver on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of maretekent/myserver on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing maretekent/myserver
[INFO] finished frobbing maretekent/myserver
[INFO] frobbed toml for maretekent/myserver written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/maretekent/myserver/Cargo.toml
[INFO] started frobbing maretekent/myserver
[INFO] finished frobbing maretekent/myserver
[INFO] frobbed toml for maretekent/myserver written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/maretekent/myserver/Cargo.toml
[INFO] crate maretekent/myserver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking maretekent/myserver against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-0/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/maretekent/myserver:/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=forbid" "-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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6eef890ae8d69eb0bf9145d8e6b5eb86b85694fdcf9527ed81b4c439dad1bcde
[INFO] running `"docker" "start" "-a" "6eef890ae8d69eb0bf9145d8e6b5eb86b85694fdcf9527ed81b4c439dad1bcde"`
[INFO] [stderr]    Compiling http-muncher v0.3.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking myserver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/server.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::fs::File;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]   --> src/server.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::path::Path;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/server.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::fs::File;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]   --> src/server.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::path::Path;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sleep`
[INFO] [stderr]    --> src/server.rs:127:15
[INFO] [stderr]     |
[INFO] [stderr] 127 |           let sleep = b"GET /sleep HTTP/1.1\r\n";
[INFO] [stderr]     |               ^^^^^ help: consider prefixing with an underscore: `_sleep`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/server.rs:1:9
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![warn(unused_variables)]
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sleep`
[INFO] [stderr]    --> src/server.rs:127:15
[INFO] [stderr]     |
[INFO] [stderr] 127 |           let sleep = b"GET /sleep HTTP/1.1\r\n";
[INFO] [stderr]     |               ^^^^^ help: consider prefixing with an underscore: `_sleep`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/server.rs:1:9
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![warn(unused_variables)]
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "6eef890ae8d69eb0bf9145d8e6b5eb86b85694fdcf9527ed81b4c439dad1bcde"`
[INFO] running `"docker" "rm" "-f" "6eef890ae8d69eb0bf9145d8e6b5eb86b85694fdcf9527ed81b4c439dad1bcde"`
[INFO] [stdout] 6eef890ae8d69eb0bf9145d8e6b5eb86b85694fdcf9527ed81b4c439dad1bcde