[INFO] fetching crate cks_accumulator 0.1.2...
[INFO] testing cks_accumulator-0.1.2 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate cks_accumulator 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cks_accumulator 0.1.2 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cks_accumulator 0.1.2
[INFO] finished tweaking crates.io crate cks_accumulator 0.1.2
[INFO] tweaked toml for crates.io crate cks_accumulator 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d51e8ac2c0544b68a7c8ae3af501dfc37803c1e90c6da5af20a35c31034d32a
[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" "5d51e8ac2c0544b68a7c8ae3af501dfc37803c1e90c6da5af20a35c31034d32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d51e8ac2c0544b68a7c8ae3af501dfc37803c1e90c6da5af20a35c31034d32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d51e8ac2c0544b68a7c8ae3af501dfc37803c1e90c6da5af20a35c31034d32a", kill_on_drop: false }`
[INFO] [stdout] 5d51e8ac2c0544b68a7c8ae3af501dfc37803c1e90c6da5af20a35c31034d32a
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17974e591a9d1edefbc995891f92bf2347937a4cae79f5d2590ffb8172942084
[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" "17974e591a9d1edefbc995891f92bf2347937a4cae79f5d2590ffb8172942084", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling miracl_amcl v3.2.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling subtle-encoding v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling amcl_wrapper v0.3.5
[INFO] [stderr]    Compiling cks_accumulator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `generate_entries_from_trapdoor`
[INFO] [stdout]    --> src/accumulator.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn generate_entries_from_trapdoor(size: usize, label: &[u8], gamma: &FieldElement) -> (G1Vector, G2Vector, GT) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/accumulator.rs:192:8
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn new(size: usize, label: &[u8]) -> (InMemoryAccumulatorEntries, FieldElement, GT) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "17974e591a9d1edefbc995891f92bf2347937a4cae79f5d2590ffb8172942084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17974e591a9d1edefbc995891f92bf2347937a4cae79f5d2590ffb8172942084", kill_on_drop: false }`
[INFO] [stdout] 17974e591a9d1edefbc995891f92bf2347937a4cae79f5d2590ffb8172942084
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d24cb7d5cc0316369e7304ee8186b4f98c0fd8e61d0551c29c24fca87ab48335
[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" "d24cb7d5cc0316369e7304ee8186b4f98c0fd8e61d0551c29c24fca87ab48335", kill_on_drop: false }`
[INFO] [stderr]    Compiling cks_accumulator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `generate_entries_from_trapdoor`
[INFO] [stdout]    --> src/accumulator.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn generate_entries_from_trapdoor(size: usize, label: &[u8], gamma: &FieldElement) -> (G1Vector, G2Vector, GT) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/accumulator.rs:192:8
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn new(size: usize, label: &[u8]) -> (InMemoryAccumulatorEntries, FieldElement, GT) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `witness` is never read
[INFO] [stdout]    --> src/accumulator.rs:567:17
[INFO] [stdout]     |
[INFO] [stdout] 567 |         let mut witness: Option<Witness> = None;
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `Command { std: "docker" "inspect" "d24cb7d5cc0316369e7304ee8186b4f98c0fd8e61d0551c29c24fca87ab48335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d24cb7d5cc0316369e7304ee8186b4f98c0fd8e61d0551c29c24fca87ab48335", kill_on_drop: false }`
[INFO] [stdout] d24cb7d5cc0316369e7304ee8186b4f98c0fd8e61d0551c29c24fca87ab48335
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0e99ec50c33ef127ef4dad4c9e82ca82ca5387b19a6681b643f4e0da9407e46f
[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" "0e99ec50c33ef127ef4dad4c9e82ca82ca5387b19a6681b643f4e0da9407e46f", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `generate_entries_from_trapdoor`
[INFO] [stderr]    --> src/accumulator.rs:118:4
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn generate_entries_from_trapdoor(size: usize, label: &[u8], gamma: &FieldElement) -> (G1Vector, G2Vector, GT) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/accumulator.rs:192:8
[INFO] [stderr]     |
[INFO] [stderr] 192 |     fn new(size: usize, label: &[u8]) -> (InMemoryAccumulatorEntries, FieldElement, GT) {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `witness` is never read
[INFO] [stderr]    --> src/accumulator.rs:567:17
[INFO] [stderr]     |
[INFO] [stderr] 567 |         let mut witness: Option<Witness> = None;
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `cks_accumulator` (lib) generated 2 warnings
[INFO] [stderr] warning: `cks_accumulator` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cks_accumulator-40a98197f67aefa0)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test accumulator::tests::test_accumulator_gen ... ok
[INFO] [stdout] test accumulator::tests::test_accumulator_addition_removal ... ok
[INFO] [stdout] test accumulator::tests::test_accumulator_witness_update ... ok
[INFO] [stdout] test accumulator::tests::test_accumulator_addition_removal_random_indices ... ok
[INFO] [stdout] test accumulator::tests::test_accumulator_witness_using_trapdoor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 25.38s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cks_accumulator
[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" "0e99ec50c33ef127ef4dad4c9e82ca82ca5387b19a6681b643f4e0da9407e46f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e99ec50c33ef127ef4dad4c9e82ca82ca5387b19a6681b643f4e0da9407e46f", kill_on_drop: false }`
[INFO] [stdout] 0e99ec50c33ef127ef4dad4c9e82ca82ca5387b19a6681b643f4e0da9407e46f