[INFO] fetching crate shrink_pool 1.0.0...
[INFO] testing shrink_pool-1.0.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate shrink_pool 1.0.0 into /workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shrink_pool 1.0.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8de7e04828b94f0b99e74cb9738a5766df64ab3897f0a7c90851288384e2069c
[INFO] running `Command { std: "docker" "start" "-a" "8de7e04828b94f0b99e74cb9738a5766df64ab3897f0a7c90851288384e2069c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8de7e04828b94f0b99e74cb9738a5766df64ab3897f0a7c90851288384e2069c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8de7e04828b94f0b99e74cb9738a5766df64ab3897f0a7c90851288384e2069c", kill_on_drop: false }`
[INFO] [stdout] 8de7e04828b94f0b99e74cb9738a5766df64ab3897f0a7c90851288384e2069c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be0252fb3d7e6062921a0eea807fbc3f5d8b5d548e46bb0657ae51b6bc7e83db
[INFO] running `Command { std: "docker" "start" "-a" "be0252fb3d7e6062921a0eea807fbc3f5d8b5d548e46bb0657ae51b6bc7e83db", 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 0.57s
[INFO] running `Command { std: "docker" "inspect" "be0252fb3d7e6062921a0eea807fbc3f5d8b5d548e46bb0657ae51b6bc7e83db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be0252fb3d7e6062921a0eea807fbc3f5d8b5d548e46bb0657ae51b6bc7e83db", kill_on_drop: false }`
[INFO] [stdout] be0252fb3d7e6062921a0eea807fbc3f5d8b5d548e46bb0657ae51b6bc7e83db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1830ed9eaad8e0e91edb17ece104fe9bd28608c26ebb91009d6e33d5ac411882
[INFO] running `Command { std: "docker" "start" "-a" "1830ed9eaad8e0e91edb17ece104fe9bd28608c26ebb91009d6e33d5ac411882", 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 0.74s
[INFO] running `Command { std: "docker" "inspect" "1830ed9eaad8e0e91edb17ece104fe9bd28608c26ebb91009d6e33d5ac411882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1830ed9eaad8e0e91edb17ece104fe9bd28608c26ebb91009d6e33d5ac411882", kill_on_drop: false }`
[INFO] [stdout] 1830ed9eaad8e0e91edb17ece104fe9bd28608c26ebb91009d6e33d5ac411882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 718640b1e33ddaacb89b179d6b1028a15749d2fe03ffb9767053c3dd3ac09b45
[INFO] running `Command { std: "docker" "start" "-a" "718640b1e33ddaacb89b179d6b1028a15749d2fe03ffb9767053c3dd3ac09b45", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shrink_pool-5af6fb0bf1ffd944)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test shrink_pool_test::typical_usecase_sync_thread ... ok
[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::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] [stdout] test shrink_pool_test::shrink_pool_test_panicked ... ok
[INFO] [stderr]    Doc-tests shrink_pool
[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] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - SyncThread (line 207) ... FAILED
[INFO] [stdout] test src/lib.rs - ShrinkPool (line 80) ... 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 - SyncThread (line 198) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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 - 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 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 0.65s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "718640b1e33ddaacb89b179d6b1028a15749d2fe03ffb9767053c3dd3ac09b45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718640b1e33ddaacb89b179d6b1028a15749d2fe03ffb9767053c3dd3ac09b45", kill_on_drop: false }`
[INFO] [stdout] 718640b1e33ddaacb89b179d6b1028a15749d2fe03ffb9767053c3dd3ac09b45