[INFO] fetching crate yt 0.1.1...
[INFO] testing yt-0.1.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate yt 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate yt 0.1.1
[INFO] finished tweaking crates.io crate yt 0.1.1
[INFO] tweaked toml for crates.io crate yt 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate yt 0.1.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate yt 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8fb6220a811ef03e5f21a3304c89f929bdacd82559eb49d78b8782cf336c833
[INFO] running `Command { std: "docker" "start" "-a" "c8fb6220a811ef03e5f21a3304c89f929bdacd82559eb49d78b8782cf336c833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8fb6220a811ef03e5f21a3304c89f929bdacd82559eb49d78b8782cf336c833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8fb6220a811ef03e5f21a3304c89f929bdacd82559eb49d78b8782cf336c833", kill_on_drop: false }`
[INFO] [stdout] c8fb6220a811ef03e5f21a3304c89f929bdacd82559eb49d78b8782cf336c833
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e089412fc4cd541e43ba1e8499debdfc6cc6e88cf19ba585bae6311afabebfda
[INFO] running `Command { std: "docker" "start" "-a" "e089412fc4cd541e43ba1e8499debdfc6cc6e88cf19ba585bae6311afabebfda", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling cc v1.0.95
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling bytemuck v1.15.0
[INFO] [stderr]    Compiling signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling parking_lot v0.12.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling weezl v0.1.8
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling flume v0.11.0
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling getrandom v0.2.14
[INFO] [stderr]    Compiling fdeflate v0.3.4
[INFO] [stderr]    Compiling serde v1.0.199
[INFO] [stderr]    Compiling exr v1.72.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling png v0.17.13
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling gif v0.13.1
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling rgb v0.8.37
[INFO] [stderr]    Compiling unicode-width v0.1.12
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling ansi_colours v1.2.2
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling newline-converter v0.3.0
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling fuzzy-matcher v0.3.7
[INFO] [stderr]    Compiling jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling crossterm v0.27.0
[INFO] [stderr]    Compiling crossterm v0.25.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tiff v0.9.1
[INFO] [stderr]    Compiling inquire v0.7.5
[INFO] [stderr]    Compiling pad v0.1.6
[INFO] [stderr]    Compiling seahorse v2.2.0
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.199
[INFO] [stderr]    Compiling homedir v0.2.1
[INFO] [stderr]    Compiling tinyget v1.0.1
[INFO] [stderr]    Compiling viuer v0.7.1
[INFO] [stderr]    Compiling yt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `exec` that must be used
[INFO] [stdout]   --> src/main.rs:93:29
[INFO] [stdout]    |
[INFO] [stdout] 93 | ...                   Command::new("mpv").arg(arg).exec();
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 93 |                             let _ = Command::new("mpv").arg(arg).exec();
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.53s
[INFO] running `Command { std: "docker" "inspect" "e089412fc4cd541e43ba1e8499debdfc6cc6e88cf19ba585bae6311afabebfda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e089412fc4cd541e43ba1e8499debdfc6cc6e88cf19ba585bae6311afabebfda", kill_on_drop: false }`
[INFO] [stdout] e089412fc4cd541e43ba1e8499debdfc6cc6e88cf19ba585bae6311afabebfda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7df09300d339c749192a2b2a8bbc5398ed54b77cba86130ade0323ee73f39114
[INFO] running `Command { std: "docker" "start" "-a" "7df09300d339c749192a2b2a8bbc5398ed54b77cba86130ade0323ee73f39114", kill_on_drop: false }`
[INFO] [stderr]    Compiling yt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `exec` that must be used
[INFO] [stdout]   --> src/main.rs:93:29
[INFO] [stdout]    |
[INFO] [stdout] 93 | ...                   Command::new("mpv").arg(arg).exec();
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 93 |                             let _ = Command::new("mpv").arg(arg).exec();
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "7df09300d339c749192a2b2a8bbc5398ed54b77cba86130ade0323ee73f39114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7df09300d339c749192a2b2a8bbc5398ed54b77cba86130ade0323ee73f39114", kill_on_drop: false }`
[INFO] [stdout] 7df09300d339c749192a2b2a8bbc5398ed54b77cba86130ade0323ee73f39114
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3bc4b4a8c9dbff5568bbb21fbc463f59d6eb028ff69861afe6d39a55ebe99288
[INFO] running `Command { std: "docker" "start" "-a" "3bc4b4a8c9dbff5568bbb21fbc463f59d6eb028ff69861afe6d39a55ebe99288", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `exec` that must be used
[INFO] [stderr]   --> src/main.rs:93:29
[INFO] [stderr]    |
[INFO] [stderr] 93 | ...                   Command::new("mpv").arg(arg).exec();
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 93 |                             let _ = Command::new("mpv").arg(arg).exec();
[INFO] [stderr]    |                             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `yt` (bin "yt" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/yt-04d6ebc08dee9879)
[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" "3bc4b4a8c9dbff5568bbb21fbc463f59d6eb028ff69861afe6d39a55ebe99288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc4b4a8c9dbff5568bbb21fbc463f59d6eb028ff69861afe6d39a55ebe99288", kill_on_drop: false }`
[INFO] [stdout] 3bc4b4a8c9dbff5568bbb21fbc463f59d6eb028ff69861afe6d39a55ebe99288