[INFO] fetching crate negatable-set 0.1.0...
[INFO] testing negatable-set-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate negatable-set 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate negatable-set 0.1.0 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 negatable-set 0.1.0
[INFO] finished tweaking crates.io crate negatable-set 0.1.0
[INFO] tweaked toml for crates.io crate negatable-set 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate negatable-set 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e144db4b14b143a2c206f188d50b79007402b9dd0b51544f6a1206eba7b04e0
[INFO] running `Command { std: "docker" "start" "-a" "4e144db4b14b143a2c206f188d50b79007402b9dd0b51544f6a1206eba7b04e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e144db4b14b143a2c206f188d50b79007402b9dd0b51544f6a1206eba7b04e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e144db4b14b143a2c206f188d50b79007402b9dd0b51544f6a1206eba7b04e0", kill_on_drop: false }`
[INFO] [stdout] 4e144db4b14b143a2c206f188d50b79007402b9dd0b51544f6a1206eba7b04e0
[INFO] running `Command { std: "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" "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] 6a27c2c0e3bb7322ea0edcf54fe199d20507c48b830821360df3b63074d1bec4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6a27c2c0e3bb7322ea0edcf54fe199d20507c48b830821360df3b63074d1bec4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling negatable-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.72s
[INFO] running `Command { std: "docker" "inspect" "6a27c2c0e3bb7322ea0edcf54fe199d20507c48b830821360df3b63074d1bec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a27c2c0e3bb7322ea0edcf54fe199d20507c48b830821360df3b63074d1bec4", kill_on_drop: false }`
[INFO] [stdout] 6a27c2c0e3bb7322ea0edcf54fe199d20507c48b830821360df3b63074d1bec4
[INFO] running `Command { std: "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" "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] 32f7badf0f60c30acbee68ab384eb7669f14780afe4ba34ebb32e8e0c4a2dee0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "32f7badf0f60c30acbee68ab384eb7669f14780afe4ba34ebb32e8e0c4a2dee0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling sorted-iter v0.1.7
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling vec-collections v0.3.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling negatable-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/test_macros.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! bitop_symmetry {
[INFO] [stdout] 3  | |     ($test:ty) => {
[INFO] [stdout] 4  | |         #[quickcheck]
[INFO] [stdout] 5  | |         fn bitor_symmetric(a: $test, b: $test) -> bool {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     };
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/test_macros.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / macro_rules! bitop_empty {
[INFO] [stdout] 23 | |     ($test:ty) => {
[INFO] [stdout] 24 | |         #[quickcheck]
[INFO] [stdout] 25 | |         fn bitand_empty_neutral(a: $test) -> bool {
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |     };
[INFO] [stdout] 48 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/test_macros.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / macro_rules! bitop_sub_not_all {
[INFO] [stdout] 52 | |     ($test:ty) => {
[INFO] [stdout] 53 | |         #[quickcheck]
[INFO] [stdout] 54 | |         fn bitand_all_neutral(x: $test) -> bool {
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |     };
[INFO] [stdout] 94 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/test_macros.rs:97:1
[INFO] [stdout]     |
[INFO] [stdout] 97  | / macro_rules! bitop_assign_consistent {
[INFO] [stdout] 98  | |     ($test:ty) => {
[INFO] [stdout] 99  | |         #[quickcheck]
[INFO] [stdout] 100 | |         fn bitand_assign_consistent(a: $test, b: $test) -> bool {
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |     };
[INFO] [stdout] 128 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/test_macros.rs:131:1
[INFO] [stdout]     |
[INFO] [stdout] 131 | / macro_rules! set_predicate_consistent {
[INFO] [stdout] 132 | |     ($test:ty) => {
[INFO] [stdout] 133 | |         #[quickcheck]
[INFO] [stdout] 134 | |         fn is_disjoint_bitand_consistent(a: $test, b: $test) -> bool {
[INFO] [stdout] ...   |
[INFO] [stdout] 160 | |     };
[INFO] [stdout] 161 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quickcheck_macros::quickcheck`
[INFO] [stdout]    --> src/lib.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |     use quickcheck_macros::quickcheck;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vec_collections::VecSet`
[INFO] [stdout]    --> src/lib.rs:521:9
[INFO] [stdout]     |
[INFO] [stdout] 521 |     use vec_collections::VecSet;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.12s
[INFO] running `Command { std: "docker" "inspect" "32f7badf0f60c30acbee68ab384eb7669f14780afe4ba34ebb32e8e0c4a2dee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32f7badf0f60c30acbee68ab384eb7669f14780afe4ba34ebb32e8e0c4a2dee0", kill_on_drop: false }`
[INFO] [stdout] 32f7badf0f60c30acbee68ab384eb7669f14780afe4ba34ebb32e8e0c4a2dee0
[INFO] running `Command { std: "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" "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] 3ef049d957505ebb1f0b1e3ae383b17475b80af6505cca6377bfb3a9beb2ef7a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3ef049d957505ebb1f0b1e3ae383b17475b80af6505cca6377bfb3a9beb2ef7a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/test_macros.rs:2:1
[INFO] [stderr]    |
[INFO] [stderr] 2  | / macro_rules! bitop_symmetry {
[INFO] [stderr] 3  | |     ($test:ty) => {
[INFO] [stderr] 4  | |         #[quickcheck]
[INFO] [stderr] 5  | |         fn bitor_symmetric(a: $test, b: $test) -> bool {
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     };
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/test_macros.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / macro_rules! bitop_empty {
[INFO] [stderr] 23 | |     ($test:ty) => {
[INFO] [stderr] 24 | |         #[quickcheck]
[INFO] [stderr] 25 | |         fn bitand_empty_neutral(a: $test) -> bool {
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |     };
[INFO] [stderr] 48 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/test_macros.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / macro_rules! bitop_sub_not_all {
[INFO] [stderr] 52 | |     ($test:ty) => {
[INFO] [stderr] 53 | |         #[quickcheck]
[INFO] [stderr] 54 | |         fn bitand_all_neutral(x: $test) -> bool {
[INFO] [stderr] ...  |
[INFO] [stderr] 93 | |     };
[INFO] [stderr] 94 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/test_macros.rs:97:1
[INFO] [stderr]     |
[INFO] [stderr] 97  | / macro_rules! bitop_assign_consistent {
[INFO] [stderr] 98  | |     ($test:ty) => {
[INFO] [stderr] 99  | |         #[quickcheck]
[INFO] [stderr] 100 | |         fn bitand_assign_consistent(a: $test, b: $test) -> bool {
[INFO] [stderr] ...   |
[INFO] [stderr] 127 | |     };
[INFO] [stderr] 128 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/test_macros.rs:131:1
[INFO] [stderr]     |
[INFO] [stderr] 131 | / macro_rules! set_predicate_consistent {
[INFO] [stderr] 132 | |     ($test:ty) => {
[INFO] [stderr] 133 | |         #[quickcheck]
[INFO] [stderr] 134 | |         fn is_disjoint_bitand_consistent(a: $test, b: $test) -> bool {
[INFO] [stderr] ...   |
[INFO] [stderr] 160 | |     };
[INFO] [stderr] 161 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `quickcheck_macros::quickcheck`
[INFO] [stderr]    --> src/lib.rs:520:9
[INFO] [stderr]     |
[INFO] [stderr] 520 |     use quickcheck_macros::quickcheck;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vec_collections::VecSet`
[INFO] [stderr]    --> src/lib.rs:521:9
[INFO] [stderr]     |
[INFO] [stderr] 521 |     use vec_collections::VecSet;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `negatable-set` (lib test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/negatable_set-9828b77ca971282c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::serde_roundtrip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests negatable-set
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3ef049d957505ebb1f0b1e3ae383b17475b80af6505cca6377bfb3a9beb2ef7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ef049d957505ebb1f0b1e3ae383b17475b80af6505cca6377bfb3a9beb2ef7a", kill_on_drop: false }`
[INFO] [stdout] 3ef049d957505ebb1f0b1e3ae383b17475b80af6505cca6377bfb3a9beb2ef7a