[INFO] fetching crate term-background 0.5.0...
[INFO] testing term-background-0.5.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate term-background 0.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate term-background 0.5.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate term-background 0.5.0
[INFO] finished tweaking crates.io crate term-background 0.5.0
[INFO] tweaked toml for crates.io crate term-background 0.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d52e239ecb18181f5679832641c7fe5e3baffe14de55f6f061dbc15dc8d85d1
[INFO] running `Command { std: "docker" "start" "-a" "1d52e239ecb18181f5679832641c7fe5e3baffe14de55f6f061dbc15dc8d85d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d52e239ecb18181f5679832641c7fe5e3baffe14de55f6f061dbc15dc8d85d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d52e239ecb18181f5679832641c7fe5e3baffe14de55f6f061dbc15dc8d85d1", kill_on_drop: false }`
[INFO] [stdout] 1d52e239ecb18181f5679832641c7fe5e3baffe14de55f6f061dbc15dc8d85d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4d210fb86d0ce86d16383b7c32b1265ae3be882349840fc295e7c5148ba95b0
[INFO] running `Command { std: "docker" "start" "-a" "b4d210fb86d0ce86d16383b7c32b1265ae3be882349840fc295e7c5148ba95b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling term-background v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:218:42
[INFO] [stdout]     |
[INFO] [stdout] 218 | fn main() -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "b4d210fb86d0ce86d16383b7c32b1265ae3be882349840fc295e7c5148ba95b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d210fb86d0ce86d16383b7c32b1265ae3be882349840fc295e7c5148ba95b0", kill_on_drop: false }`
[INFO] [stdout] b4d210fb86d0ce86d16383b7c32b1265ae3be882349840fc295e7c5148ba95b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e9ecb07a20fe2caeaa5d51310d3e878b6b17800af177e5293763392567708fd
[INFO] running `Command { std: "docker" "start" "-a" "9e9ecb07a20fe2caeaa5d51310d3e878b6b17800af177e5293763392567708fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling term-background v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:218:42
[INFO] [stdout]     |
[INFO] [stdout] 218 | fn main() -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "9e9ecb07a20fe2caeaa5d51310d3e878b6b17800af177e5293763392567708fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e9ecb07a20fe2caeaa5d51310d3e878b6b17800af177e5293763392567708fd", kill_on_drop: false }`
[INFO] [stdout] 9e9ecb07a20fe2caeaa5d51310d3e878b6b17800af177e5293763392567708fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d80c9b14b00279c94289a3d2aceec28d158963eb2f7dd99b892be34126e27d90
[INFO] running `Command { std: "docker" "start" "-a" "d80c9b14b00279c94289a3d2aceec28d158963eb2f7dd99b892be34126e27d90", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:218:42
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn main() -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `term-background` (bin "term-background" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/term_background-184aa5d67c206c30)
[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" "d80c9b14b00279c94289a3d2aceec28d158963eb2f7dd99b892be34126e27d90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d80c9b14b00279c94289a3d2aceec28d158963eb2f7dd99b892be34126e27d90", kill_on_drop: false }`
[INFO] [stdout] d80c9b14b00279c94289a3d2aceec28d158963eb2f7dd99b892be34126e27d90