[INFO] cloning repository https://github.com/AlvinKuruvilla/PhotoXMP
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlvinKuruvilla/PhotoXMP" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvinKuruvilla%2FPhotoXMP", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvinKuruvilla%2FPhotoXMP'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d12a5a588e683b2a192fe5f9426b768a0d731ff1
[INFO] checking AlvinKuruvilla/PhotoXMP against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvinKuruvilla%2FPhotoXMP" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlvinKuruvilla/PhotoXMP on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlvinKuruvilla/PhotoXMP
[INFO] finished tweaking git repo https://github.com/AlvinKuruvilla/PhotoXMP
[INFO] tweaked toml for git repo https://github.com/AlvinKuruvilla/PhotoXMP written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 502524a2b926fc47b1311e3a3940026533f4616d4380ad1994e0ff28e31386e3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "502524a2b926fc47b1311e3a3940026533f4616d4380ad1994e0ff28e31386e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "502524a2b926fc47b1311e3a3940026533f4616d4380ad1994e0ff28e31386e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "502524a2b926fc47b1311e3a3940026533f4616d4380ad1994e0ff28e31386e3", kill_on_drop: false }`
[INFO] [stdout] 502524a2b926fc47b1311e3a3940026533f4616d4380ad1994e0ff28e31386e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f28779293f128e2646890d7d870fb6d478793f1a857093a10b93d61f5fa1e231
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f28779293f128e2646890d7d870fb6d478793f1a857093a10b93d61f5fa1e231", kill_on_drop: false }`
[INFO] [stderr]     Checking photo_xmp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufRead`, `Read`
[INFO] [stdout]  --> src/Utils.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufWriter, Write, BufRead, Read};
[INFO] [stdout]   |                                 ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Read`
[INFO] [stdout]  --> src/Utils.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufWriter, Write, BufRead, Read};
[INFO] [stdout]   |                                 ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 86 |               return false;
[INFO] [stdout]    |               ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 93 | /          while img_file_path.exists() && xmp_file_path.exists() {
[INFO] [stdout] 94 | |               return true;
[INFO] [stdout] 95 | |           }
[INFO] [stdout]    | |___________^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 86 |               return false;
[INFO] [stdout]    |               ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 93 | /          while img_file_path.exists() && xmp_file_path.exists() {
[INFO] [stdout] 94 | |               return true;
[INFO] [stdout] 95 | |           }
[INFO] [stdout]    | |___________^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 76 |       pub fn retrieve_data(folder: String, start_name: String) -> bool {
[INFO] [stdout]    |                                                                   ---- expected `bool` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 93 | /          while img_file_path.exists() && xmp_file_path.exists() {
[INFO] [stdout] 94 | |               return true;
[INFO] [stdout] 95 | |           }
[INFO] [stdout]    | |___________^ expected `bool`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 76 |       pub fn retrieve_data(folder: String, start_name: String) -> bool {
[INFO] [stdout]    |                                                                   ---- expected `bool` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 93 | /          while img_file_path.exists() && xmp_file_path.exists() {
[INFO] [stdout] 94 | |               return true;
[INFO] [stdout] 95 | |           }
[INFO] [stdout]    | |___________^ expected `bool`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `photo_xmp`
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f28779293f128e2646890d7d870fb6d478793f1a857093a10b93d61f5fa1e231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f28779293f128e2646890d7d870fb6d478793f1a857093a10b93d61f5fa1e231", kill_on_drop: false }`
[INFO] [stdout] f28779293f128e2646890d7d870fb6d478793f1a857093a10b93d61f5fa1e231