[INFO] fetching crate constrainer 0.0.2...
[INFO] testing constrainer-0.0.2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate constrainer 0.0.2 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate constrainer 0.0.2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate constrainer 0.0.2
[INFO] finished tweaking crates.io crate constrainer 0.0.2
[INFO] tweaked toml for crates.io crate constrainer 0.0.2 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate crates.io crate constrainer 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a551d0d98dc339660c050415893f8f169b8833f4db778758135ea31b836d5ff
[INFO] running `Command { std: "docker" "start" "-a" "6a551d0d98dc339660c050415893f8f169b8833f4db778758135ea31b836d5ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a551d0d98dc339660c050415893f8f169b8833f4db778758135ea31b836d5ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a551d0d98dc339660c050415893f8f169b8833f4db778758135ea31b836d5ff", kill_on_drop: false }`
[INFO] [stdout] 6a551d0d98dc339660c050415893f8f169b8833f4db778758135ea31b836d5ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f4465449d2c5df7cdc0a012381d7892b355accc6b149052166150641876fed6
[INFO] running `Command { std: "docker" "start" "-a" "6f4465449d2c5df7cdc0a012381d7892b355accc6b149052166150641876fed6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling constrainer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `block`
[INFO] [stdout]    --> src/lib.rs:492:5
[INFO] [stdout]     |
[INFO] [stdout] 492 |     block: TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block`
[INFO] [stdout]    --> src/lib.rs:506:5
[INFO] [stdout]     |
[INFO] [stdout] 506 |     block: TokenStream,
[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 5.54s
[INFO] running `Command { std: "docker" "inspect" "6f4465449d2c5df7cdc0a012381d7892b355accc6b149052166150641876fed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f4465449d2c5df7cdc0a012381d7892b355accc6b149052166150641876fed6", kill_on_drop: false }`
[INFO] [stdout] 6f4465449d2c5df7cdc0a012381d7892b355accc6b149052166150641876fed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 535126e15f0c3be58cf1cf2592de4bdfc62dae377a8941858a64db1cfeea4d30
[INFO] running `Command { std: "docker" "start" "-a" "535126e15f0c3be58cf1cf2592de4bdfc62dae377a8941858a64db1cfeea4d30", kill_on_drop: false }`
[INFO] [stderr]    Compiling constrainer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `block`
[INFO] [stdout]    --> src/lib.rs:492:5
[INFO] [stdout]     |
[INFO] [stdout] 492 |     block: TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block`
[INFO] [stdout]    --> src/lib.rs:506:5
[INFO] [stdout]     |
[INFO] [stdout] 506 |     block: TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]  --> examples/readme.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     dynamic x f32
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block`
[INFO] [stdout]    --> src/lib.rs:492:5
[INFO] [stdout]     |
[INFO] [stdout] 492 |     block: TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block`
[INFO] [stdout]    --> src/lib.rs:506:5
[INFO] [stdout]     |
[INFO] [stdout] 506 |     block: TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "535126e15f0c3be58cf1cf2592de4bdfc62dae377a8941858a64db1cfeea4d30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "535126e15f0c3be58cf1cf2592de4bdfc62dae377a8941858a64db1cfeea4d30", kill_on_drop: false }`
[INFO] [stdout] 535126e15f0c3be58cf1cf2592de4bdfc62dae377a8941858a64db1cfeea4d30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6d993494287b5ee319cce253e8422345020763c91394afde73ea1ab3bc92ed7b
[INFO] running `Command { std: "docker" "start" "-a" "6d993494287b5ee319cce253e8422345020763c91394afde73ea1ab3bc92ed7b", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `block`
[INFO] [stderr]    --> src/lib.rs:492:5
[INFO] [stderr]     |
[INFO] [stderr] 492 |     block: TokenStream,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `block`
[INFO] [stderr]    --> src/lib.rs:506:5
[INFO] [stderr]     |
[INFO] [stderr] 506 |     block: TokenStream,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `constrainer` (lib) generated 2 warnings
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]  --> examples/readme.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |     dynamic x f32
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `constrainer` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: `constrainer` (example "readme") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/constrainer-aab26a9159925021)
[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 constrainer
[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" "6d993494287b5ee319cce253e8422345020763c91394afde73ea1ab3bc92ed7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d993494287b5ee319cce253e8422345020763c91394afde73ea1ab3bc92ed7b", kill_on_drop: false }`
[INFO] [stdout] 6d993494287b5ee319cce253e8422345020763c91394afde73ea1ab3bc92ed7b