[INFO] fetching crate tac-traits 0.3.0-alpha.2...
[INFO] testing tac-traits-0.3.0-alpha.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate tac-traits 0.3.0-alpha.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate tac-traits 0.3.0-alpha.2
[INFO] finished tweaking crates.io crate tac-traits 0.3.0-alpha.2
[INFO] tweaked toml for crates.io crate tac-traits 0.3.0-alpha.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tac-traits 0.3.0-alpha.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tac-traits 0.3.0-alpha.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macro_rules_attribute-proc_macro v0.1.3
[INFO] [stderr]   Downloaded arena-traits v0.2.3
[INFO] [stderr]   Downloaded extension-traits v1.0.1
[INFO] [stderr]   Downloaded nougat v0.2.4
[INFO] [stderr]   Downloaded ext-trait v1.0.1
[INFO] [stderr]   Downloaded macro_rules_attribute v0.1.3
[INFO] [stderr]   Downloaded ext-trait-proc_macros v1.0.1
[INFO] [stderr]   Downloaded lending-iterator-proc_macros v0.1.7
[INFO] [stderr]   Downloaded nougat-proc_macros v0.2.4
[INFO] [stderr]   Downloaded lending-iterator v0.1.7
[INFO] [stderr]   Downloaded sift-trait v0.3.0-alpha.2
[INFO] [stderr]   Downloaded polonius-the-crab v0.2.1
[INFO] [stderr]   Downloaded register-machine-traits v0.3.0-alpha.2
[INFO] [stderr]   Downloaded cfg-traits v0.3.0-alpha.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01e9d9f3ccf3928ebd85e84953e81f4c94e0eb0b0db0d19a9d47514baa73d39e
[INFO] running `Command { std: "docker" "start" "-a" "01e9d9f3ccf3928ebd85e84953e81f4c94e0eb0b0db0d19a9d47514baa73d39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01e9d9f3ccf3928ebd85e84953e81f4c94e0eb0b0db0d19a9d47514baa73d39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e9d9f3ccf3928ebd85e84953e81f4c94e0eb0b0db0d19a9d47514baa73d39e", kill_on_drop: false }`
[INFO] [stdout] 01e9d9f3ccf3928ebd85e84953e81f4c94e0eb0b0db0d19a9d47514baa73d39e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdd8252f79af24af09a08867f311e41ad8bdc4efa16a949480837c8f42cb5d14
[INFO] running `Command { std: "docker" "start" "-a" "fdd8252f79af24af09a08867f311e41ad8bdc4efa16a949480837c8f42cb5d14", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.1.3
[INFO] [stderr]    Compiling polonius-the-crab v0.2.1
[INFO] [stderr]    Compiling never-say-never v6.6.666
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling arena-traits v0.2.3
[INFO] [stderr]    Compiling sift-trait v0.3.0-alpha.2
[INFO] [stderr]    Compiling macro_rules_attribute v0.1.3
[INFO] [stderr]    Compiling ext-trait-proc_macros v1.0.1
[INFO] [stderr]    Compiling nougat-proc_macros v0.2.4
[INFO] [stderr]    Compiling lending-iterator-proc_macros v0.1.7
[INFO] [stderr]    Compiling ext-trait v1.0.1
[INFO] [stderr]    Compiling nougat v0.2.4
[INFO] [stderr]    Compiling extension-traits v1.0.1
[INFO] [stderr]    Compiling lending-iterator v0.1.7
[INFO] [stderr]    Compiling cfg-traits v0.3.0-alpha.2
[INFO] [stderr]    Compiling register-machine-traits v0.3.0-alpha.2
[INFO] [stderr]    Compiling tac-traits v0.3.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.78s
[INFO] running `Command { std: "docker" "inspect" "fdd8252f79af24af09a08867f311e41ad8bdc4efa16a949480837c8f42cb5d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd8252f79af24af09a08867f311e41ad8bdc4efa16a949480837c8f42cb5d14", kill_on_drop: false }`
[INFO] [stdout] fdd8252f79af24af09a08867f311e41ad8bdc4efa16a949480837c8f42cb5d14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 317e4f499c5d46754b78fd386b1f7f5a3f09dea7ba012e772264330e4428fa38
[INFO] running `Command { std: "docker" "start" "-a" "317e4f499c5d46754b78fd386b1f7f5a3f09dea7ba012e772264330e4428fa38", kill_on_drop: false }`
[INFO] [stderr]    Compiling tac-traits v0.3.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "317e4f499c5d46754b78fd386b1f7f5a3f09dea7ba012e772264330e4428fa38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "317e4f499c5d46754b78fd386b1f7f5a3f09dea7ba012e772264330e4428fa38", kill_on_drop: false }`
[INFO] [stdout] 317e4f499c5d46754b78fd386b1f7f5a3f09dea7ba012e772264330e4428fa38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 051143a2cc9bbd7d389d8d9f25b2d66d34ddd99d05f3fcdeaae854bd6ab57c4a
[INFO] running `Command { std: "docker" "start" "-a" "051143a2cc9bbd7d389d8d9f25b2d66d34ddd99d05f3fcdeaae854bd6ab57c4a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tac_traits-578814b2372d3655)
[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] [stderr]    Doc-tests tac_traits
[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" "051143a2cc9bbd7d389d8d9f25b2d66d34ddd99d05f3fcdeaae854bd6ab57c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "051143a2cc9bbd7d389d8d9f25b2d66d34ddd99d05f3fcdeaae854bd6ab57c4a", kill_on_drop: false }`
[INFO] [stdout] 051143a2cc9bbd7d389d8d9f25b2d66d34ddd99d05f3fcdeaae854bd6ab57c4a