[INFO] fetching crate refptr 0.2.0...
[INFO] testing refptr-0.2.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate refptr 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate refptr 0.2.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate refptr 0.2.0
[INFO] finished tweaking crates.io crate refptr 0.2.0
[INFO] tweaked toml for crates.io crate refptr 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5b240d62f0508c1eaab6a3ececb724d8c896925188647e061126597d3d81c468
[INFO] running `"docker" "start" "-a" "5b240d62f0508c1eaab6a3ececb724d8c896925188647e061126597d3d81c468"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling refptr-macros v0.2.0
[INFO] [stderr]    Compiling refptr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `"docker" "inspect" "5b240d62f0508c1eaab6a3ececb724d8c896925188647e061126597d3d81c468"`
[INFO] running `"docker" "rm" "-f" "5b240d62f0508c1eaab6a3ececb724d8c896925188647e061126597d3d81c468"`
[INFO] [stdout] 5b240d62f0508c1eaab6a3ececb724d8c896925188647e061126597d3d81c468
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 50bc26589d9e6e3f23562c1753e21fc3bf970e54bfa54cffa61587092806cdc2
[INFO] running `"docker" "start" "-a" "50bc26589d9e6e3f23562c1753e21fc3bf970e54bfa54cffa61587092806cdc2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling refptr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `aaa`
[INFO] [stderr]  --> tests/testy.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     aaa: i32,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bbb`
[INFO] [stderr]  --> tests/testy.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     bbb: u32,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `aaa`
[INFO] [stderr]   --> tests/testy.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     aaa: i32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bbb`
[INFO] [stderr]   --> tests/testy.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     bbb: u32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `aaa`
[INFO] [stderr]   --> tests/testy.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     aaa: i32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bbb`
[INFO] [stderr]   --> tests/testy.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     bbb: u32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `aaa`
[INFO] [stderr]   --> tests/testy.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     aaa: i32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bbb`
[INFO] [stderr]   --> tests/testy.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     bbb: u32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "50bc26589d9e6e3f23562c1753e21fc3bf970e54bfa54cffa61587092806cdc2"`
[INFO] running `"docker" "rm" "-f" "50bc26589d9e6e3f23562c1753e21fc3bf970e54bfa54cffa61587092806cdc2"`
[INFO] [stdout] 50bc26589d9e6e3f23562c1753e21fc3bf970e54bfa54cffa61587092806cdc2
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fd0ecd2f97e9021e7ad39c51a8029f3d4de701947756ae1c3f462b4f7ebcb096
[INFO] running `"docker" "start" "-a" "fd0ecd2f97e9021e7ad39c51a8029f3d4de701947756ae1c3f462b4f7ebcb096"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: field is never read: `aaa`
[INFO] [stderr]  --> tests/testy.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     aaa: i32,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bbb`
[INFO] [stderr]  --> tests/testy.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     bbb: u32,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `aaa`
[INFO] [stderr]   --> tests/testy.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     aaa: i32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bbb`
[INFO] [stderr]   --> tests/testy.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     bbb: u32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `aaa`
[INFO] [stderr]   --> tests/testy.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     aaa: i32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bbb`
[INFO] [stderr]   --> tests/testy.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     bbb: u32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `aaa`
[INFO] [stderr]   --> tests/testy.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     aaa: i32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bbb`
[INFO] [stderr]   --> tests/testy.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     bbb: u32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/refptr-9885226c6073aa78
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/testy-cdac3f65b05e26c0
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test foo ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests refptr
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs -  (line 120) ... ok
[INFO] [stdout] test src/lib.rs - make_refptr (line 477) ... ok
[INFO] [stdout] test src/lib.rs -  (line 41) ... ok
[INFO] [stdout] test src/lib.rs -  (line 155) ... ok
[INFO] [stdout] test src/lib.rs -  (line 97) ... ok
[INFO] [stdout] test src/lib.rs - WeakPtr (line 293) ... ok
[INFO] [stdout] test src/lib.rs -  (line 16) ... ok
[INFO] [stdout] test src/lib.rs -  (line 76) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fd0ecd2f97e9021e7ad39c51a8029f3d4de701947756ae1c3f462b4f7ebcb096"`
[INFO] running `"docker" "rm" "-f" "fd0ecd2f97e9021e7ad39c51a8029f3d4de701947756ae1c3f462b4f7ebcb096"`
[INFO] [stdout] fd0ecd2f97e9021e7ad39c51a8029f3d4de701947756ae1c3f462b4f7ebcb096