[INFO] fetching crate refpool 0.4.3...
[INFO] testing refpool-0.4.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate refpool 0.4.3 into /workspace/builds/worker-79/source
[INFO] validating manifest of crates.io crate refpool 0.4.3 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 refpool 0.4.3
[INFO] finished tweaking crates.io crate refpool 0.4.3
[INFO] tweaked toml for crates.io crate refpool 0.4.3 written to /workspace/builds/worker-79/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] 2db54bb3e7a4dded43d87db3f270a40434e9ac08f345d9b9b534174586937b4a
[INFO] running `Command { std: "docker" "start" "-a" "2db54bb3e7a4dded43d87db3f270a40434e9ac08f345d9b9b534174586937b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2db54bb3e7a4dded43d87db3f270a40434e9ac08f345d9b9b534174586937b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db54bb3e7a4dded43d87db3f270a40434e9ac08f345d9b9b534174586937b4a", kill_on_drop: false }`
[INFO] [stdout] 2db54bb3e7a4dded43d87db3f270a40434e9ac08f345d9b9b534174586937b4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] 66b535b3aa69cc34859f94f6ec28ca37356868bcab5a64d1d3e7e2e3344170a7
[INFO] running `Command { std: "docker" "start" "-a" "66b535b3aa69cc34859f94f6ec28ca37356868bcab5a64d1d3e7e2e3344170a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling refpool v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "66b535b3aa69cc34859f94f6ec28ca37356868bcab5a64d1d3e7e2e3344170a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b535b3aa69cc34859f94f6ec28ca37356868bcab5a64d1d3e7e2e3344170a7", kill_on_drop: false }`
[INFO] [stdout] 66b535b3aa69cc34859f94f6ec28ca37356868bcab5a64d1d3e7e2e3344170a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] a148941b8057c61737fc65eb0b0033a535fd72a7d7b677d6529515b05a3c02c4
[INFO] running `Command { std: "docker" "start" "-a" "a148941b8057c61737fc65eb0b0033a535fd72a7d7b677d6529515b05a3c02c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling refpool v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 31.68s
[INFO] running `Command { std: "docker" "inspect" "a148941b8057c61737fc65eb0b0033a535fd72a7d7b677d6529515b05a3c02c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a148941b8057c61737fc65eb0b0033a535fd72a7d7b677d6529515b05a3c02c4", kill_on_drop: false }`
[INFO] [stdout] a148941b8057c61737fc65eb0b0033a535fd72a7d7b677d6529515b05a3c02c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] fc2c5418d9f2dade52ad085fe87b2a062fba195cff4bf09d3dd83d4d670f0cad
[INFO] running `Command { std: "docker" "start" "-a" "fc2c5418d9f2dade52ad085fe87b2a062fba195cff4bf09d3dd83d4d670f0cad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/refpool-521ac4c533626830)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::option_of_ref_size_equals_ref_size ... ok
[INFO] [stdout] test test::unwrap_or_clone ... ok
[INFO] [stdout] test test::dropping_null ... ok
[INFO] [stdout] test test::dropping_sized ... ok
[INFO] [stdout] test test::null_pool_antics ... ok
[INFO] [stdout] test test::allocate_and_deallocate_a_bit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests refpool
[INFO] [stderr] warning: lint `missing_doc_code_examples` has been renamed to `rustdoc::missing_doc_code_examples`
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     missing_doc_code_examples
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `rustdoc::missing_doc_code_examples`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] running 29 tests
[INFO] [stderr] 
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::from_raw (line 364) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::get_mut (line 215) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::cloned (line 153) ... ok
[INFO] [stdout] test src/lib.rs - (line 87) ... ok
[INFO] [stdout] test src/box_handle.rs - box_handle::PoolBox<A>::default (line 40) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::clone_from (line 88) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::default (line 33) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::pin (line 133) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::try_unwrap (line 246) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::pin_default (line 114) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::unwrap_or_clone (line 286) ... ok
[INFO] [stdout] test src/box_handle.rs - box_handle::PoolBox<A>::pin_default (line 121) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::try_unwrap (line 255) ... ok
[INFO] [stdout] test src/box_handle.rs - box_handle::PoolBox<A>::clone_from (line 95) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool (line 28) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::make_mut (line 182) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<A>::filled (line 145) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<A>::fill (line 111) ... ok
[INFO] [stdout] test src/box_handle.rs - box_handle::PoolBox<A>::pin (line 140) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::new (line 63) ... ok
[INFO] [stdout] test src/box_handle.rs - box_handle::PoolBox<A>::clone (line 250) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<A>::cast (line 170) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<A>::fmt (line 221) ... ok
[INFO] [stdout] test src/box_handle.rs - box_handle::PoolBox<A>::from_raw (line 203) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::ptr_eq (line 310) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<A>::filled (line 137) ... ok
[INFO] [stdout] test src/box_handle.rs - box_handle::PoolBox<A>::new (line 70) ... ok
[INFO] [stdout] test src/ref_handle.rs - ref_handle::PoolRef<A>::strong_count (line 325) ... ok
[INFO] [stdout] test src/box_handle.rs - box_handle::PoolBox<A>::ptr_eq (line 156) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.80s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fc2c5418d9f2dade52ad085fe87b2a062fba195cff4bf09d3dd83d4d670f0cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc2c5418d9f2dade52ad085fe87b2a062fba195cff4bf09d3dd83d4d670f0cad", kill_on_drop: false }`
[INFO] [stdout] fc2c5418d9f2dade52ad085fe87b2a062fba195cff4bf09d3dd83d4d670f0cad