[INFO] fetching crate libsync 0.2.0...
[INFO] testing libsync-0.2.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate libsync 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate libsync 0.2.0
[INFO] finished tweaking crates.io crate libsync 0.2.0
[INFO] tweaked toml for crates.io crate libsync 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate libsync 0.2.0 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] crate crates.io crate libsync 0.2.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded delegate v0.13.3
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9569c79b81abc6ae8ce0436e9b91b865714c0192f2c12f1b577d00e8ce52f16c
[INFO] running `Command { std: "docker" "start" "-a" "9569c79b81abc6ae8ce0436e9b91b865714c0192f2c12f1b577d00e8ce52f16c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9569c79b81abc6ae8ce0436e9b91b865714c0192f2c12f1b577d00e8ce52f16c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9569c79b81abc6ae8ce0436e9b91b865714c0192f2c12f1b577d00e8ce52f16c", kill_on_drop: false }`
[INFO] [stdout] 9569c79b81abc6ae8ce0436e9b91b865714c0192f2c12f1b577d00e8ce52f16c
[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=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] ef804938f7e9489314bb9dea84890cf49b380073ded52a6d3c680c42f563d498
[INFO] running `Command { std: "docker" "start" "-a" "ef804938f7e9489314bb9dea84890cf49b380073ded52a6d3c680c42f563d498", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling delegate v0.13.3
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling libsync v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `AtomicUsize`, `Ordering`, and `Weak`
[INFO] [stdout]  --> src/shared_details.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, sync::{atomic::{AtomicBool, AtomicUsize, Ordering}, Arc, Weak}};
[INFO] [stdout]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^   ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, and `Ordering`
[INFO] [stdout]  --> src/bounded_shared_details.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.03s
[INFO] running `Command { std: "docker" "inspect" "ef804938f7e9489314bb9dea84890cf49b380073ded52a6d3c680c42f563d498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef804938f7e9489314bb9dea84890cf49b380073ded52a6d3c680c42f563d498", kill_on_drop: false }`
[INFO] [stdout] ef804938f7e9489314bb9dea84890cf49b380073ded52a6d3c680c42f563d498
[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=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] a952e8141d27f71076418a7a33002f763f0bb39fd3ce1886b40827b0f5521875
[INFO] running `Command { std: "docker" "start" "-a" "a952e8141d27f71076418a7a33002f763f0bb39fd3ce1886b40827b0f5521875", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `AtomicUsize`, `Ordering`, and `Weak`
[INFO] [stdout]  --> src/shared_details.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, sync::{atomic::{AtomicBool, AtomicUsize, Ordering}, Arc, Weak}};
[INFO] [stdout]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^   ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, and `Ordering`
[INFO] [stdout]  --> src/bounded_shared_details.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling libsync v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `AtomicUsize`, `Ordering`, and `Weak`
[INFO] [stdout]  --> src/shared_details.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, sync::{atomic::{AtomicBool, AtomicUsize, Ordering}, Arc, Weak}};
[INFO] [stdout]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^   ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, and `Ordering`
[INFO] [stdout]  --> src/bounded_shared_details.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "a952e8141d27f71076418a7a33002f763f0bb39fd3ce1886b40827b0f5521875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a952e8141d27f71076418a7a33002f763f0bb39fd3ce1886b40827b0f5521875", kill_on_drop: false }`
[INFO] [stdout] a952e8141d27f71076418a7a33002f763f0bb39fd3ce1886b40827b0f5521875
[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=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] 368519e1e0c887934f3e333ededabf21be9082e63b0e9c950814e443436112f7
[INFO] running `Command { std: "docker" "start" "-a" "368519e1e0c887934f3e333ededabf21be9082e63b0e9c950814e443436112f7", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Arc`, `AtomicBool`, `AtomicUsize`, `Ordering`, and `Weak`
[INFO] [stdout] 
[INFO] [stderr]  --> src/shared_details.rs:1:39
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 1 | use std::{fmt::Debug, sync::{atomic::{AtomicBool, AtomicUsize, Ordering}, Arc, Weak}};
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^   ^^^  ^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AtomicBool`, `AtomicUsize`, and `Ordering`
[INFO] [stderr]  --> src/bounded_shared_details.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stderr]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `libsync` (lib) generated 2 warnings (run `cargo fix --lib -p libsync` to apply 2 suggestions)
[INFO] [stderr] warning: `libsync` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libsync-0ba97ade74745be6)
[INFO] [stderr]    Doc-tests libsync
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 51) ... ok
[INFO] [stdout] test src/lib.rs - (line 65) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "368519e1e0c887934f3e333ededabf21be9082e63b0e9c950814e443436112f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368519e1e0c887934f3e333ededabf21be9082e63b0e9c950814e443436112f7", kill_on_drop: false }`
[INFO] [stdout] 368519e1e0c887934f3e333ededabf21be9082e63b0e9c950814e443436112f7