[INFO] fetching crate shrink_pool 1.0.0...
[INFO] testing shrink_pool-1.0.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate shrink_pool 1.0.0 into /workspace/builds/worker-2-tc2/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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shrink_pool 1.0.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae0b6e44b026e792b03a78c64dec022f8d18ce60304e9e7ead5381757b1d3ee0
[INFO] running `Command { std: "docker" "start" "-a" "ae0b6e44b026e792b03a78c64dec022f8d18ce60304e9e7ead5381757b1d3ee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae0b6e44b026e792b03a78c64dec022f8d18ce60304e9e7ead5381757b1d3ee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae0b6e44b026e792b03a78c64dec022f8d18ce60304e9e7ead5381757b1d3ee0", kill_on_drop: false }`
[INFO] [stdout] ae0b6e44b026e792b03a78c64dec022f8d18ce60304e9e7ead5381757b1d3ee0
[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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 123447639a0c7ffc3fda0424169d19d94aa5a454e8ab8189edb61aff0b15cbef
[INFO] running `Command { std: "docker" "start" "-a" "123447639a0c7ffc3fda0424169d19d94aa5a454e8ab8189edb61aff0b15cbef", 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 0.32s
[INFO] running `Command { std: "docker" "inspect" "123447639a0c7ffc3fda0424169d19d94aa5a454e8ab8189edb61aff0b15cbef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123447639a0c7ffc3fda0424169d19d94aa5a454e8ab8189edb61aff0b15cbef", kill_on_drop: false }`
[INFO] [stdout] 123447639a0c7ffc3fda0424169d19d94aa5a454e8ab8189edb61aff0b15cbef
[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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fd4f40ac4d2a7cbe74b6a34977733e63b99e9a27d8f2faf46970f1d386e6445
[INFO] running `Command { std: "docker" "start" "-a" "0fd4f40ac4d2a7cbe74b6a34977733e63b99e9a27d8f2faf46970f1d386e6445", 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 0.69s
[INFO] running `Command { std: "docker" "inspect" "0fd4f40ac4d2a7cbe74b6a34977733e63b99e9a27d8f2faf46970f1d386e6445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fd4f40ac4d2a7cbe74b6a34977733e63b99e9a27d8f2faf46970f1d386e6445", kill_on_drop: false }`
[INFO] [stdout] 0fd4f40ac4d2a7cbe74b6a34977733e63b99e9a27d8f2faf46970f1d386e6445
[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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d22d1ca531e61256d20d0b243d8fc6cbb865934c06fe630aea57d7339bb04c9
[INFO] running `Command { std: "docker" "start" "-a" "4d22d1ca531e61256d20d0b243d8fc6cbb865934c06fe630aea57d7339bb04c9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shrink_pool-4e48927b70d9d219)
[INFO] [stdout] running 7 tests
[INFO] [stdout] test shrink_pool_test::shrink_pool_test_sync ... ok
[INFO] [stdout] test shrink_pool_test::sync_thread_test_sync ... ok
[INFO] [stdout] test shrink_pool_test::shrink_pool_test_pooled ... ok
[INFO] [stdout] test shrink_pool_test::typical_usecase_sync_thread ... ok
[INFO] [stdout] test shrink_pool_test::typical_usecase ... ok
[INFO] [stdout] test shrink_pool_test::shrink_pool_test_pooled_and_pause ... ok
[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 5.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shrink_pool
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - (line 42) ... FAILED
[INFO] [stdout] test src/lib.rs - ShrinkPool (line 80) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 17) ... FAILED
[INFO] [stdout] test src/lib.rs - SyncThread (line 207) ... FAILED
[INFO] [stdout] test src/lib.rs - SyncThread (line 198) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - ShrinkPool (line 70) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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 - 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 - (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] ---- 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] 
[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 0.22s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4d22d1ca531e61256d20d0b243d8fc6cbb865934c06fe630aea57d7339bb04c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d22d1ca531e61256d20d0b243d8fc6cbb865934c06fe630aea57d7339bb04c9", kill_on_drop: false }`
[INFO] [stdout] 4d22d1ca531e61256d20d0b243d8fc6cbb865934c06fe630aea57d7339bb04c9