[INFO] fetching crate negatable-set 0.1.0...
[INFO] checking negatable-set-0.1.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate negatable-set 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate negatable-set 0.1.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-9/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 157bf39bcfd2fbda63091e61151fd92f369a5e9f500c5a8ee07e08ade18e879a
[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" "157bf39bcfd2fbda63091e61151fd92f369a5e9f500c5a8ee07e08ade18e879a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "157bf39bcfd2fbda63091e61151fd92f369a5e9f500c5a8ee07e08ade18e879a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "157bf39bcfd2fbda63091e61151fd92f369a5e9f500c5a8ee07e08ade18e879a", kill_on_drop: false }`
[INFO] [stdout] 157bf39bcfd2fbda63091e61151fd92f369a5e9f500c5a8ee07e08ade18e879a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 0ab440e01fac9ae2a51f3c75881ddf110ce8b328658d07728aef7c37f7c9a3fa
[INFO] running `Command { std: "docker" "start" "-a" "0ab440e01fac9ae2a51f3c75881ddf110ce8b328658d07728aef7c37f7c9a3fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking sorted-iter v0.1.7
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking vec-collections v0.3.3
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking negatable-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stdout] warning: unused macro definition: `bitop_symmetry`
[INFO] [stdout]  --> src/test_macros.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | macro_rules! bitop_symmetry {
[INFO] [stdout]   |              ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `bitop_empty`
[INFO] [stdout]   --> src/test_macros.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 | macro_rules! bitop_empty {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `bitop_sub_not_all`
[INFO] [stdout]   --> src/test_macros.rs:51:14
[INFO] [stdout]    |
[INFO] [stdout] 51 | macro_rules! bitop_sub_not_all {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `bitop_assign_consistent`
[INFO] [stdout]   --> src/test_macros.rs:97:14
[INFO] [stdout]    |
[INFO] [stdout] 97 | macro_rules! bitop_assign_consistent {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `set_predicate_consistent`
[INFO] [stdout]    --> src/test_macros.rs:131:14
[INFO] [stdout]     |
[INFO] [stdout] 131 | macro_rules! set_predicate_consistent {
[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 dev [unoptimized + debuginfo] target(s) in 25.76s
[INFO] running `Command { std: "docker" "inspect" "0ab440e01fac9ae2a51f3c75881ddf110ce8b328658d07728aef7c37f7c9a3fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab440e01fac9ae2a51f3c75881ddf110ce8b328658d07728aef7c37f7c9a3fa", kill_on_drop: false }`
[INFO] [stdout] 0ab440e01fac9ae2a51f3c75881ddf110ce8b328658d07728aef7c37f7c9a3fa