[INFO] fetching crate causal-length 0.2.0...
[INFO] testing causal-length-0.2.0 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate causal-length 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate causal-length 0.2.0 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate causal-length 0.2.0
[INFO] finished tweaking crates.io crate causal-length 0.2.0
[INFO] tweaked toml for crates.io crate causal-length 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.8.4 (latest: v0.11.3)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.66)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66f4717fba496bdaef6cf8a1bd1b14db4263153d4deedf9ff477e631cef746cd
[INFO] running `Command { std: "docker" "start" "-a" "66f4717fba496bdaef6cf8a1bd1b14db4263153d4deedf9ff477e631cef746cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66f4717fba496bdaef6cf8a1bd1b14db4263153d4deedf9ff477e631cef746cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f4717fba496bdaef6cf8a1bd1b14db4263153d4deedf9ff477e631cef746cd", kill_on_drop: false }`
[INFO] [stdout] 66f4717fba496bdaef6cf8a1bd1b14db4263153d4deedf9ff477e631cef746cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02076a2a613ccbfb9a5dbf6d05527a788401899acaa51900d0ab556806e1da8c
[INFO] running `Command { std: "docker" "start" "-a" "02076a2a613ccbfb9a5dbf6d05527a788401899acaa51900d0ab556806e1da8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling serde_derive v1.0.202
[INFO] [stderr]    Compiling causal-length v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serialization::*`
[INFO] [stdout]    --> src/map.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 | pub use serialization::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serialization::*`
[INFO] [stdout]    --> src/set.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub use serialization::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/set.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let mut e = self
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "02076a2a613ccbfb9a5dbf6d05527a788401899acaa51900d0ab556806e1da8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02076a2a613ccbfb9a5dbf6d05527a788401899acaa51900d0ab556806e1da8c", kill_on_drop: false }`
[INFO] [stdout] 02076a2a613ccbfb9a5dbf6d05527a788401899acaa51900d0ab556806e1da8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 264aa3a1ac02fe6b4d2b04acbf6eb8985a00d42dc09cc354dc636cadee32b133
[INFO] running `Command { std: "docker" "start" "-a" "264aa3a1ac02fe6b4d2b04acbf6eb8985a00d42dc09cc354dc636cadee32b133", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stdout] warning: unused import: `serialization::*`
[INFO] [stdout]    --> src/map.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 | pub use serialization::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stdout] warning: unused import: `serialization::*`
[INFO] [stdout]    --> src/set.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub use serialization::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/set.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let mut e = self
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling quickcheck v1.0.3
[INFO] [stderr]    Compiling causal-length v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serialization::*`
[INFO] [stdout]    --> src/map.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 | pub use serialization::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serialization::*`
[INFO] [stdout]    --> src/set.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub use serialization::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/set.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let mut e = self
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.58s
[INFO] running `Command { std: "docker" "inspect" "264aa3a1ac02fe6b4d2b04acbf6eb8985a00d42dc09cc354dc636cadee32b133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264aa3a1ac02fe6b4d2b04acbf6eb8985a00d42dc09cc354dc636cadee32b133", kill_on_drop: false }`
[INFO] [stdout] 264aa3a1ac02fe6b4d2b04acbf6eb8985a00d42dc09cc354dc636cadee32b133
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9233a1fdab435882c4a2b7493c48fd09e6cd1ae63419d01ea225eb3460847bb7
[INFO] running `Command { std: "docker" "start" "-a" "9233a1fdab435882c4a2b7493c48fd09e6cd1ae63419d01ea225eb3460847bb7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `serialization::*`
[INFO] [stderr]    --> src/map.rs:304:9
[INFO] [stderr]     |
[INFO] [stderr] 304 | pub use serialization::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serialization::*`
[INFO] [stderr]    --> src/set.rs:232:9
[INFO] [stderr]     |
[INFO] [stderr] 232 | pub use serialization::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/set.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let mut e = self
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `causal-length` (lib) generated 3 warnings (run `cargo fix --lib -p causal-length` to apply 3 suggestions)
[INFO] [stderr] warning: `causal-length` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/causal_length-f74cee1c7c05a146)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test map::tests::test_remove ... ok
[INFO] [stdout] test map::tests::test_retain ... ok
[INFO] [stdout] test map::tests::test_overwrite ... ok
[INFO] [stdout] test register::tests::is_merge_commutative ... ok
[INFO] [stdout] test set::tests::is_merge_commutative ... ok
[INFO] [stdout] test map::tests::test_add ... ok
[INFO] [stdout] test map::tests::test_serialization ... ok
[INFO] [stdout] test register::tests::test_serialization ... ok
[INFO] [stdout] test set::tests::test_add ... ok
[INFO] [stdout] test set::tests::test_merge ... ok
[INFO] [stdout] test map::tests::test_merge ... ok
[INFO] [stdout] test map::tests::simple_model::implementation_matches_model ... ok
[INFO] [stdout] test set::tests::implementation_matches_model ... ok
[INFO] [stdout] test map::tests::test_order_independence ... ok
[INFO] [stdout] test register::tests::test_fup ... ok
[INFO] [stdout] test set::tests::test_remove ... ok
[INFO] [stdout] test set::tests::test_serialization ... ok
[INFO] [stdout] test register::tests::test_merge ... ok
[INFO] [stdout] test set::tests::test_retain ... ok
[INFO] [stdout] test set::tests::test_order_independence ... ok
[INFO] [stdout] test map::tests::test_merge_commutative ... ok
[INFO] [stdout] test set::tests::is_merge_order_independent ... ok
[INFO] [stdout] test map::tests::is_merge_order_independent ... ok
[INFO] [stderr]    Doc-tests causal_length
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[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" "9233a1fdab435882c4a2b7493c48fd09e6cd1ae63419d01ea225eb3460847bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9233a1fdab435882c4a2b7493c48fd09e6cd1ae63419d01ea225eb3460847bb7", kill_on_drop: false }`
[INFO] [stdout] 9233a1fdab435882c4a2b7493c48fd09e6cd1ae63419d01ea225eb3460847bb7
