[INFO] crate ctf 0.1.0 is already in cache
[INFO] testing ctf-0.1.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate ctf 0.1.0 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate ctf 0.1.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ctf 0.1.0
[INFO] finished tweaking crates.io crate ctf 0.1.0
[INFO] tweaked toml for crates.io crate ctf 0.1.0 written to work/builds/worker-7/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] ded5765c8ef56b84bd1a5415cdf2cbdaff0e70d79c51d4be961c2961c3abb74e
[INFO] running `"docker" "start" "-a" "ded5765c8ef56b84bd1a5415cdf2cbdaff0e70d79c51d4be961c2961c3abb74e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ctf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let u = model::User { id: 42, handle: String::from("alxbl"), access: 999, assigned: None};
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]  --> src/model.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct User {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Challenge`
[INFO] [stderr]  --> src/model.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Challenge {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Trail`
[INFO] [stderr]   --> src/model.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub enum Trail {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Event`
[INFO] [stderr]   --> src/model.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Event {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `open`
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn open() {
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "ded5765c8ef56b84bd1a5415cdf2cbdaff0e70d79c51d4be961c2961c3abb74e"`
[INFO] running `"docker" "rm" "-f" "ded5765c8ef56b84bd1a5415cdf2cbdaff0e70d79c51d4be961c2961c3abb74e"`
[INFO] [stdout] ded5765c8ef56b84bd1a5415cdf2cbdaff0e70d79c51d4be961c2961c3abb74e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 742834bfbbe3ca6b80441bf0e692197fa8c22ecb327e377fb3e515b4c1549cb3
[INFO] running `"docker" "start" "-a" "742834bfbbe3ca6b80441bf0e692197fa8c22ecb327e377fb3e515b4c1549cb3"`
[INFO] [stderr]    Compiling ctf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find function `open` in this scope
[INFO] [stderr]   --> src/lib.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         open();
[INFO] [stderr]    |         ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 11 |     use open;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `ctf`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "742834bfbbe3ca6b80441bf0e692197fa8c22ecb327e377fb3e515b4c1549cb3"`
[INFO] running `"docker" "rm" "-f" "742834bfbbe3ca6b80441bf0e692197fa8c22ecb327e377fb3e515b4c1549cb3"`
[INFO] [stdout] 742834bfbbe3ca6b80441bf0e692197fa8c22ecb327e377fb3e515b4c1549cb3