[INFO] fetching crate jobpool 0.3.8...
[INFO] testing jobpool-0.3.8 against 1.55.0 for beta-1.56-1
[INFO] extracting crate jobpool 0.3.8 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate jobpool 0.3.8 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 jobpool 0.3.8
[INFO] finished tweaking crates.io crate jobpool 0.3.8
[INFO] tweaked toml for crates.io crate jobpool 0.3.8 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] eae085ba657a9c70972496852e1b7e78d2e50c831b5b3cd7c9f5edd6d52379a0
[INFO] running `Command { std: "docker" "start" "-a" "eae085ba657a9c70972496852e1b7e78d2e50c831b5b3cd7c9f5edd6d52379a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eae085ba657a9c70972496852e1b7e78d2e50c831b5b3cd7c9f5edd6d52379a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae085ba657a9c70972496852e1b7e78d2e50c831b5b3cd7c9f5edd6d52379a0", kill_on_drop: false }`
[INFO] [stdout] eae085ba657a9c70972496852e1b7e78d2e50c831b5b3cd7c9f5edd6d52379a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 69756a905f2ccc2fd04b603a1e80d14595f4a23ca0b910adc403701eb8b57257
[INFO] running `Command { std: "docker" "start" "-a" "69756a905f2ccc2fd04b603a1e80d14595f4a23ca0b910adc403701eb8b57257", kill_on_drop: false }`
[INFO] [stderr]    Compiling jobpool v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/jobpool.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | type BoxedRunnable = Box<Runnable + Send + 'static>;
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Send + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) 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 0.82s
[INFO] running `Command { std: "docker" "inspect" "69756a905f2ccc2fd04b603a1e80d14595f4a23ca0b910adc403701eb8b57257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69756a905f2ccc2fd04b603a1e80d14595f4a23ca0b910adc403701eb8b57257", kill_on_drop: false }`
[INFO] [stdout] 69756a905f2ccc2fd04b603a1e80d14595f4a23ca0b910adc403701eb8b57257
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 36dc23db6b4cadd87dfbc6e081bc6f104a3bae93c87536ce1bb2d87964945935
[INFO] running `Command { std: "docker" "start" "-a" "36dc23db6b4cadd87dfbc6e081bc6f104a3bae93c87536ce1bb2d87964945935", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/jobpool.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | type BoxedRunnable = Box<Runnable + Send + 'static>;
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Send + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) 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]    Compiling jobpool v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/jobpool.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | type BoxedRunnable = Box<Runnable + Send + 'static>;
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Send + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) 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 2.52s
[INFO] running `Command { std: "docker" "inspect" "36dc23db6b4cadd87dfbc6e081bc6f104a3bae93c87536ce1bb2d87964945935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36dc23db6b4cadd87dfbc6e081bc6f104a3bae93c87536ce1bb2d87964945935", kill_on_drop: false }`
[INFO] [stdout] 36dc23db6b4cadd87dfbc6e081bc6f104a3bae93c87536ce1bb2d87964945935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 161044c11ae4bdffc21d1625458bd61c6554b7db48e34a40d248094ba571490d
[INFO] running `Command { std: "docker" "start" "-a" "161044c11ae4bdffc21d1625458bd61c6554b7db48e34a40d248094ba571490d", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/jobpool.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 | type BoxedRunnable = Box<Runnable + Send + 'static>;
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Send + 'static`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) 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: `jobpool` (lib) generated 1 warning
[INFO] [stderr] warning: `jobpool` (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/jobpool-0903496ea0c1ae87)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::shutdown_no_wait ... ok
[INFO] [stdout] test tests::check_shutdown ... ok
[INFO] [stdout] test tests::panic_on_zero_sized_jobpool - should panic ... ok
[INFO] [stdout] test tests::no_panic_on_multiple_shutdowns ... ok
[INFO] [stdout] test tests::panic_on_reuse_shutdown_no_wait - should panic ... ok
[INFO] [stdout] test tests::panic_on_reuse - should panic ... ok
[INFO] [stdout] test tests::shouldnt_auto_grow ... ok
[INFO] [stdout] test tests::shuts_down ... ok
[INFO] [stdout] test tests::shutdown_no_wait_with_auto_grow ... ok
[INFO] [stdout] test tests::shuts_down_with_auto_grow ... ok
[INFO] [stdout] test tests::queue_with_priority ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.54s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests jobpool
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/jobpool.rs - jobpool::JobPool::queue_with_priority (line 273) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/jobpool.rs - jobpool::JobPool::queue (line 242) ... ok
[INFO] [stdout] test src/jobpool.rs - jobpool::JobPool::shutdown_no_wait (line 487) ... ok
[INFO] [stdout] test src/jobpool.rs - jobpool::JobPool::auto_grow (line 393) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/jobpool.rs - jobpool::JobPool::shutdown (line 428) ... ok
[INFO] [stdout] test src/jobpool.rs - jobpool::JobPool::new (line 174) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.73s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "161044c11ae4bdffc21d1625458bd61c6554b7db48e34a40d248094ba571490d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161044c11ae4bdffc21d1625458bd61c6554b7db48e34a40d248094ba571490d", kill_on_drop: false }`
[INFO] [stdout] 161044c11ae4bdffc21d1625458bd61c6554b7db48e34a40d248094ba571490d