[INFO] fetching crate libsdl 1.4.7...
[INFO] testing libsdl-1.4.7 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate libsdl 1.4.7 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate libsdl 1.4.7 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libsdl 1.4.7
[INFO] finished tweaking crates.io crate libsdl 1.4.7
[INFO] tweaked toml for crates.io crate libsdl 1.4.7 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db841fd76487bbc91a09666afc4086c0d78a199adfd95487c3f22594b68c5e3e
[INFO] running `Command { std: "docker" "start" "-a" "db841fd76487bbc91a09666afc4086c0d78a199adfd95487c3f22594b68c5e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db841fd76487bbc91a09666afc4086c0d78a199adfd95487c3f22594b68c5e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db841fd76487bbc91a09666afc4086c0d78a199adfd95487c3f22594b68c5e3e", kill_on_drop: false }`
[INFO] [stdout] db841fd76487bbc91a09666afc4086c0d78a199adfd95487c3f22594b68c5e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56acf7060a6c6320964220a9ffb0347679b4116d2c37d897b8b555febbbbb430
[INFO] running `Command { std: "docker" "start" "-a" "56acf7060a6c6320964220a9ffb0347679b4116d2c37d897b8b555febbbbb430", kill_on_drop: false }`
[INFO] [stderr]    Compiling libsdl v1.4.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `data_string` is never read
[INFO] [stdout]   --> src/lib.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut data_string : String = String::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "56acf7060a6c6320964220a9ffb0347679b4116d2c37d897b8b555febbbbb430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56acf7060a6c6320964220a9ffb0347679b4116d2c37d897b8b555febbbbb430", kill_on_drop: false }`
[INFO] [stdout] 56acf7060a6c6320964220a9ffb0347679b4116d2c37d897b8b555febbbbb430
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dd1e6be6bae59574af2b691592d9c242b3f945f4b2001583654fcb043f8d787
[INFO] running `Command { std: "docker" "start" "-a" "6dd1e6be6bae59574af2b691592d9c242b3f945f4b2001583654fcb043f8d787", kill_on_drop: false }`
[INFO] [stderr]    Compiling libsdl v1.4.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `data_string` is never read
[INFO] [stdout]   --> src/lib.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut data_string : String = String::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `data_string` is never read
[INFO] [stdout]   --> src/lib.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut data_string : String = String::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "6dd1e6be6bae59574af2b691592d9c242b3f945f4b2001583654fcb043f8d787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dd1e6be6bae59574af2b691592d9c242b3f945f4b2001583654fcb043f8d787", kill_on_drop: false }`
[INFO] [stdout] 6dd1e6be6bae59574af2b691592d9c242b3f945f4b2001583654fcb043f8d787
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0e6aad24edf6cea516edad3b9a90c922ec583d61625cbd316a7d2ff7e94646b9
[INFO] running `Command { std: "docker" "start" "-a" "0e6aad24edf6cea516edad3b9a90c922ec583d61625cbd316a7d2ff7e94646b9", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `data_string` is never read
[INFO] [stderr]   --> src/lib.rs:42:11
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut data_string : String = String::new();
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `libsdl` (lib) generated 1 warning
[INFO] [stderr] warning: `libsdl` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libsdl-65af89df7a6c7c9e)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libsdl
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0e6aad24edf6cea516edad3b9a90c922ec583d61625cbd316a7d2ff7e94646b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e6aad24edf6cea516edad3b9a90c922ec583d61625cbd316a7d2ff7e94646b9", kill_on_drop: false }`
[INFO] [stdout] 0e6aad24edf6cea516edad3b9a90c922ec583d61625cbd316a7d2ff7e94646b9