[INFO] fetching crate pecos-core 0.1.1...
[INFO] testing pecos-core-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate pecos-core 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate pecos-core 0.1.1
[INFO] finished tweaking crates.io crate pecos-core 0.1.1
[INFO] tweaked toml for crates.io crate pecos-core 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pecos-core 0.1.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_chacha v0.3.1 (available: v0.9.0)
[INFO] [stderr]       Adding rand_xoshiro v0.6.0 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be333f87738dcc609159856e2c73256094065928a237beff69826f934d32f5fe
[INFO] running `Command { std: "docker" "start" "-a" "be333f87738dcc609159856e2c73256094065928a237beff69826f934d32f5fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be333f87738dcc609159856e2c73256094065928a237beff69826f934d32f5fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be333f87738dcc609159856e2c73256094065928a237beff69826f934d32f5fe", kill_on_drop: false }`
[INFO] [stdout] be333f87738dcc609159856e2c73256094065928a237beff69826f934d32f5fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9ae13acbecff11db1560060e1e60f36f938d5238f3f567666e979de36731b6e
[INFO] running `Command { std: "docker" "start" "-a" "d9ae13acbecff11db1560060e1e60f36f938d5238f3f567666e979de36731b6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pecos-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/sets/vec_set/set_impl.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/sets/vec_set/set_impl.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 157 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "d9ae13acbecff11db1560060e1e60f36f938d5238f3f567666e979de36731b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9ae13acbecff11db1560060e1e60f36f938d5238f3f567666e979de36731b6e", kill_on_drop: false }`
[INFO] [stdout] d9ae13acbecff11db1560060e1e60f36f938d5238f3f567666e979de36731b6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a47f67ffb84a7a00caab750169d9212ee4c3eb9265ddfb5ca3106f1466544ff0
[INFO] running `Command { std: "docker" "start" "-a" "a47f67ffb84a7a00caab750169d9212ee4c3eb9265ddfb5ca3106f1466544ff0", kill_on_drop: false }`
[INFO] [stderr]    Compiling pecos-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/sets/vec_set/set_impl.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/sets/vec_set/set_impl.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 157 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/sets/vec_set/set_impl.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/sets/vec_set/set_impl.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 157 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "a47f67ffb84a7a00caab750169d9212ee4c3eb9265ddfb5ca3106f1466544ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a47f67ffb84a7a00caab750169d9212ee4c3eb9265ddfb5ca3106f1466544ff0", kill_on_drop: false }`
[INFO] [stdout] a47f67ffb84a7a00caab750169d9212ee4c3eb9265ddfb5ca3106f1466544ff0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66a9b92509e68173e3e960d4d45537ff48fc0ade4ac572e78d1aad09b9779c9a
[INFO] running `Command { std: "docker" "start" "-a" "66a9b92509e68173e3e960d4d45537ff48fc0ade4ac572e78d1aad09b9779c9a", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]   --> src/sets/vec_set/set_impl.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     #[must_use]
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/sets/vec_set/set_impl.rs:157:5
[INFO] [stderr]     |
[INFO] [stderr] 157 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `pecos-core` (lib) generated 2 warnings
[INFO] [stderr] warning: `pecos-core` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pecos_core-c96fae63b453080e)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test sets::vec_set::tests::test_bitand_assign ... ok
[INFO] [stdout] test sets::vec_set::tests::test_a_xor_b_sub_c ... ok
[INFO] [stdout] test sets::vec_set::tests::test_difference ... ok
[INFO] [stdout] test sets::vec_set::tests::test_insert ... ok
[INFO] [stdout] test sets::vec_set::tests::test_capacity ... ok
[INFO] [stdout] test sets::vec_set::tests::test_bitand_assign_single_element_ref ... ok
[INFO] [stdout] test sets::vec_set::tests::test_clear ... ok
[INFO] [stdout] test sets::vec_set::tests::test_bitor_assign ... ok
[INFO] [stdout] test sets::vec_set::tests::test_a_xor_b_sub_c_glyphs ... ok
[INFO] [stdout] test sets::vec_set::tests::test_intersection ... ok
[INFO] [stdout] test sets::vec_set::tests::test_bitxor_assign ... ok
[INFO] [stdout] test sets::vec_set::tests::test_intersection_update ... ok
[INFO] [stdout] test sets::vec_set::tests::test_new ... ok
[INFO] [stdout] test sets::vec_set::tests::test_remove ... ok
[INFO] [stdout] test sets::vec_set::tests::test_sub_ref ... ok
[INFO] [stdout] test sets::vec_set::tests::test_symmetric_difference ... ok
[INFO] [stdout] test sets::vec_set::tests::test_symmetric_difference_update ... ok
[INFO] [stdout] test sets::vec_set::tests::test_new_with_vec ... ok
[INFO] [stdout] test sets::vec_set::tests::test_union_item_update ... ok
[INFO] [stdout] test sets::vec_set::tests::test_union ... ok
[INFO] [stdout] test sets::vec_set::tests::test_symmetric_difference_item_update ... ok
[INFO] [stderr]    Doc-tests pecos_core
[INFO] [stdout] test sets::vec_set::tests::test_new_from ... ok
[INFO] [stdout] test sets::vec_set::tests::test_with_capacity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[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" "66a9b92509e68173e3e960d4d45537ff48fc0ade4ac572e78d1aad09b9779c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66a9b92509e68173e3e960d4d45537ff48fc0ade4ac572e78d1aad09b9779c9a", kill_on_drop: false }`
[INFO] [stdout] 66a9b92509e68173e3e960d4d45537ff48fc0ade4ac572e78d1aad09b9779c9a