[INFO] fetching crate register-machine-traits 0.3.0-alpha.2...
[INFO] testing register-machine-traits-0.3.0-alpha.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate register-machine-traits 0.3.0-alpha.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate register-machine-traits 0.3.0-alpha.2
[INFO] finished tweaking crates.io crate register-machine-traits 0.3.0-alpha.2
[INFO] tweaked toml for crates.io crate register-machine-traits 0.3.0-alpha.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate register-machine-traits 0.3.0-alpha.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate register-machine-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-traits v0.3.0-alpha.2
[INFO] [stderr]   Downloaded nougat v0.2.4
[INFO] [stderr]   Downloaded arena-traits v0.2.3
[INFO] [stderr]   Downloaded lending-iterator-proc_macros v0.1.7
[INFO] [stderr]   Downloaded ext-trait-proc_macros v1.0.1
[INFO] [stderr]   Downloaded nougat-proc_macros v0.2.4
[INFO] [stderr]   Downloaded ext-trait v1.0.1
[INFO] [stderr]   Downloaded extension-traits v1.0.1
[INFO] [stderr]   Downloaded never-say-never v6.6.666
[INFO] [stderr]   Downloaded macro_rules_attribute-proc_macro v0.1.3
[INFO] [stderr]   Downloaded polonius-the-crab v0.2.1
[INFO] [stderr]   Downloaded lending-iterator v0.1.7
[INFO] [stderr]   Downloaded macro_rules_attribute v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0392b36d6e6470657666915c9d9f528a78087ce09c82dc0d32984ed37732c8c
[INFO] running `Command { std: "docker" "start" "-a" "d0392b36d6e6470657666915c9d9f528a78087ce09c82dc0d32984ed37732c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0392b36d6e6470657666915c9d9f528a78087ce09c82dc0d32984ed37732c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0392b36d6e6470657666915c9d9f528a78087ce09c82dc0d32984ed37732c8c", kill_on_drop: false }`
[INFO] [stdout] d0392b36d6e6470657666915c9d9f528a78087ce09c82dc0d32984ed37732c8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64b153bf46bf6674e0b2f93579382f7f2b3c605a65539ea0b16c167555083a5a
[INFO] running `Command { std: "docker" "start" "-a" "64b153bf46bf6674e0b2f93579382f7f2b3c605a65539ea0b16c167555083a5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.1.3
[INFO] [stderr]    Compiling never-say-never v6.6.666
[INFO] [stderr]    Compiling polonius-the-crab v0.2.1
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling arena-traits v0.2.3
[INFO] [stderr]    Compiling macro_rules_attribute v0.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[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 extension-traits v1.0.1
[INFO] [stderr]    Compiling nougat v0.2.4
[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 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::ops::IndexMut`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::ops::IndexMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.14s
[INFO] running `Command { std: "docker" "inspect" "64b153bf46bf6674e0b2f93579382f7f2b3c605a65539ea0b16c167555083a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b153bf46bf6674e0b2f93579382f7f2b3c605a65539ea0b16c167555083a5a", kill_on_drop: false }`
[INFO] [stdout] 64b153bf46bf6674e0b2f93579382f7f2b3c605a65539ea0b16c167555083a5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5f1288c6a8eb9a8e052550197efc9752f33d85998d46705e1745084b49506b1
[INFO] running `Command { std: "docker" "start" "-a" "d5f1288c6a8eb9a8e052550197efc9752f33d85998d46705e1745084b49506b1", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `core::ops::IndexMut`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::ops::IndexMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling register-machine-traits v0.3.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::ops::IndexMut`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::ops::IndexMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "d5f1288c6a8eb9a8e052550197efc9752f33d85998d46705e1745084b49506b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f1288c6a8eb9a8e052550197efc9752f33d85998d46705e1745084b49506b1", kill_on_drop: false }`
[INFO] [stdout] d5f1288c6a8eb9a8e052550197efc9752f33d85998d46705e1745084b49506b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7b5cc8ce60fd07daaf46cc31d2d68cc21f66d996fcb92b3be3a57ee71b98cad0
[INFO] running `Command { std: "docker" "start" "-a" "7b5cc8ce60fd07daaf46cc31d2d68cc21f66d996fcb92b3be3a57ee71b98cad0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `core::ops::IndexMut`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use core::ops::IndexMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `register-machine-traits` (lib) generated 1 warning (run `cargo fix --lib -p register-machine-traits` to apply 1 suggestion)
[INFO] [stderr] warning: `register-machine-traits` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/register_machine_traits-7b913aa641c363c6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests register_machine_traits
[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] [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" "7b5cc8ce60fd07daaf46cc31d2d68cc21f66d996fcb92b3be3a57ee71b98cad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b5cc8ce60fd07daaf46cc31d2d68cc21f66d996fcb92b3be3a57ee71b98cad0", kill_on_drop: false }`
[INFO] [stdout] 7b5cc8ce60fd07daaf46cc31d2d68cc21f66d996fcb92b3be3a57ee71b98cad0