[INFO] fetching crate shrink_pool 1.0.0...
[INFO] testing shrink_pool-1.0.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate shrink_pool 1.0.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate shrink_pool 1.0.0
[INFO] finished tweaking crates.io crate shrink_pool 1.0.0
[INFO] tweaked toml for crates.io crate shrink_pool 1.0.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shrink_pool 1.0.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfe5ea6ffeb71f9a8197f17e41c434b262076686feec4547d6c944654d8fa13e
[INFO] running `Command { std: "docker" "start" "-a" "dfe5ea6ffeb71f9a8197f17e41c434b262076686feec4547d6c944654d8fa13e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfe5ea6ffeb71f9a8197f17e41c434b262076686feec4547d6c944654d8fa13e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe5ea6ffeb71f9a8197f17e41c434b262076686feec4547d6c944654d8fa13e", kill_on_drop: false }`
[INFO] [stdout] dfe5ea6ffeb71f9a8197f17e41c434b262076686feec4547d6c944654d8fa13e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 756931a4b1d99286fe14fbb641f5fe0fc47f92f88106ea6f515f0fc8061f6e28
[INFO] running `Command { std: "docker" "start" "-a" "756931a4b1d99286fe14fbb641f5fe0fc47f92f88106ea6f515f0fc8061f6e28", kill_on_drop: false }`
[INFO] [stderr]    Compiling shrink_pool v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "756931a4b1d99286fe14fbb641f5fe0fc47f92f88106ea6f515f0fc8061f6e28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "756931a4b1d99286fe14fbb641f5fe0fc47f92f88106ea6f515f0fc8061f6e28", kill_on_drop: false }`
[INFO] [stdout] 756931a4b1d99286fe14fbb641f5fe0fc47f92f88106ea6f515f0fc8061f6e28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b50aef11e55006619db69cfd6f4ff19f253943d15899539aeb8cbf8b28720352
[INFO] running `Command { std: "docker" "start" "-a" "b50aef11e55006619db69cfd6f4ff19f253943d15899539aeb8cbf8b28720352", kill_on_drop: false }`
[INFO] [stderr]    Compiling shrink_pool v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "b50aef11e55006619db69cfd6f4ff19f253943d15899539aeb8cbf8b28720352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b50aef11e55006619db69cfd6f4ff19f253943d15899539aeb8cbf8b28720352", kill_on_drop: false }`
[INFO] [stdout] b50aef11e55006619db69cfd6f4ff19f253943d15899539aeb8cbf8b28720352
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] be2f7c5908652e74e1eb69048e585f13136005732907bef103390447001a0fb1
[INFO] running `Command { std: "docker" "start" "-a" "be2f7c5908652e74e1eb69048e585f13136005732907bef103390447001a0fb1", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shrink_pool-4e48927b70d9d219)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test shrink_pool_test::typical_usecase_sync_thread ... ok
[INFO] [stdout] test shrink_pool_test::sync_thread_test_sync ... ok
[INFO] [stdout] test shrink_pool_test::shrink_pool_test_sync ... ok
[INFO] [stdout] test shrink_pool_test::typical_usecase ... ok
[INFO] [stdout] test shrink_pool_test::shrink_pool_test_pooled ... ok
[INFO] [stdout] test shrink_pool_test::shrink_pool_test_pooled_and_pause ... ok
[INFO] [stderr]    Doc-tests shrink_pool
[INFO] [stdout] test shrink_pool_test::shrink_pool_test_panicked ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - ShrinkPool (line 80) ... FAILED
[INFO] [stdout] test src/lib.rs - SyncThread (line 207) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 42) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 17) ... FAILED
[INFO] [stdout] test src/lib.rs - ShrinkPool (line 70) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - SyncThread (line 198) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - ShrinkPool (line 80) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stdout]  --> src/lib.rs:81:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | Result:
[INFO] [stdout]   |       ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - SyncThread (line 207) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stdout]  --> src/lib.rs:208:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | Result:
[INFO] [stdout]   |       ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 42) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stdout]  --> src/lib.rs:43:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | Result:
[INFO] [stdout]   |       ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 17) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stdout]  --> src/lib.rs:18:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | Result:
[INFO] [stdout]   |       ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 17)
[INFO] [stdout]     src/lib.rs - (line 42)
[INFO] [stdout]     src/lib.rs - ShrinkPool (line 80)
[INFO] [stdout]     src/lib.rs - SyncThread (line 207)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "be2f7c5908652e74e1eb69048e585f13136005732907bef103390447001a0fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be2f7c5908652e74e1eb69048e585f13136005732907bef103390447001a0fb1", kill_on_drop: false }`
[INFO] [stdout] be2f7c5908652e74e1eb69048e585f13136005732907bef103390447001a0fb1