[INFO] fetching crate libsdl 1.4.7...
[INFO] testing libsdl-1.4.7 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate libsdl 1.4.7 into /workspace/builds/worker-47/source
[INFO] validating manifest of crates.io crate libsdl 1.4.7 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-47/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63376bc9d483fc5f7f8b8e30cbd913f9be324f7776ea4f849593afd4015338f3
[INFO] running `Command { std: "docker" "start" "-a" "63376bc9d483fc5f7f8b8e30cbd913f9be324f7776ea4f849593afd4015338f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63376bc9d483fc5f7f8b8e30cbd913f9be324f7776ea4f849593afd4015338f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63376bc9d483fc5f7f8b8e30cbd913f9be324f7776ea4f849593afd4015338f3", kill_on_drop: false }`
[INFO] [stdout] 63376bc9d483fc5f7f8b8e30cbd913f9be324f7776ea4f849593afd4015338f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dfd25a12985fc664f1b96ee1065f674030e6c74f0b8703dc2424c68f2ee13e4
[INFO] running `Command { std: "docker" "start" "-a" "9dfd25a12985fc664f1b96ee1065f674030e6c74f0b8703dc2424c68f2ee13e4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 0.22s
[INFO] running `Command { std: "docker" "inspect" "9dfd25a12985fc664f1b96ee1065f674030e6c74f0b8703dc2424c68f2ee13e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dfd25a12985fc664f1b96ee1065f674030e6c74f0b8703dc2424c68f2ee13e4", kill_on_drop: false }`
[INFO] [stdout] 9dfd25a12985fc664f1b96ee1065f674030e6c74f0b8703dc2424c68f2ee13e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abfcaa1a01fbd43b05d7608c6f2f6eb405d1537c14f84a70ab4e9cee2e0c66f8
[INFO] running `Command { std: "docker" "start" "-a" "abfcaa1a01fbd43b05d7608c6f2f6eb405d1537c14f84a70ab4e9cee2e0c66f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]    Compiling libsdl v1.4.7 (/opt/rustwide/workdir)
[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 0.78s
[INFO] running `Command { std: "docker" "inspect" "abfcaa1a01fbd43b05d7608c6f2f6eb405d1537c14f84a70ab4e9cee2e0c66f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abfcaa1a01fbd43b05d7608c6f2f6eb405d1537c14f84a70ab4e9cee2e0c66f8", kill_on_drop: false }`
[INFO] [stdout] abfcaa1a01fbd43b05d7608c6f2f6eb405d1537c14f84a70ab4e9cee2e0c66f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 204c125670f08bffc9f1937aa13c12d955a9c60c8b36f0e139652caab7557be3
[INFO] running `Command { std: "docker" "start" "-a" "204c125670f08bffc9f1937aa13c12d955a9c60c8b36f0e139652caab7557be3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 0.73s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libsdl-4c7661a0a96be8ef)
[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" "204c125670f08bffc9f1937aa13c12d955a9c60c8b36f0e139652caab7557be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "204c125670f08bffc9f1937aa13c12d955a9c60c8b36f0e139652caab7557be3", kill_on_drop: false }`
[INFO] [stdout] 204c125670f08bffc9f1937aa13c12d955a9c60c8b36f0e139652caab7557be3