[INFO] fetching crate libsync 0.2.0...
[INFO] testing libsync-0.2.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate libsync 0.2.0 into /workspace/builds/worker-1-tc2/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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libsync 0.2.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 728e75415baffe83b7e95fa5d9fb3281c263d255da20fbbe0ffa02f02459ec8d
[INFO] running `Command { std: "docker" "start" "-a" "728e75415baffe83b7e95fa5d9fb3281c263d255da20fbbe0ffa02f02459ec8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "728e75415baffe83b7e95fa5d9fb3281c263d255da20fbbe0ffa02f02459ec8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "728e75415baffe83b7e95fa5d9fb3281c263d255da20fbbe0ffa02f02459ec8d", kill_on_drop: false }`
[INFO] [stdout] 728e75415baffe83b7e95fa5d9fb3281c263d255da20fbbe0ffa02f02459ec8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 452d82f968667bc0f4fcbbeecb86a59bc523e4e2441ce4286ee402a38a015176
[INFO] running `Command { std: "docker" "start" "-a" "452d82f968667bc0f4fcbbeecb86a59bc523e4e2441ce4286ee402a38a015176", 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)]` (part of `#[warn(unused)]`) 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 7.77s
[INFO] running `Command { std: "docker" "inspect" "452d82f968667bc0f4fcbbeecb86a59bc523e4e2441ce4286ee402a38a015176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "452d82f968667bc0f4fcbbeecb86a59bc523e4e2441ce4286ee402a38a015176", kill_on_drop: false }`
[INFO] [stdout] 452d82f968667bc0f4fcbbeecb86a59bc523e4e2441ce4286ee402a38a015176
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 187430c2ca388acc038352f1ab8449f006e58e935f99a7c2924a064cec40c792
[INFO] running `Command { std: "docker" "start" "-a" "187430c2ca388acc038352f1ab8449f006e58e935f99a7c2924a064cec40c792", kill_on_drop: false }`
[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)]` (part of `#[warn(unused)]`) 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] [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)]` (part of `#[warn(unused)]`) 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 0.16s
[INFO] running `Command { std: "docker" "inspect" "187430c2ca388acc038352f1ab8449f006e58e935f99a7c2924a064cec40c792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "187430c2ca388acc038352f1ab8449f006e58e935f99a7c2924a064cec40c792", kill_on_drop: false }`
[INFO] [stdout] 187430c2ca388acc038352f1ab8449f006e58e935f99a7c2924a064cec40c792
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f3069fea389f0b956160eede076ba0524b071478340bd0e12c68024cf934f7b8
[INFO] running `Command { std: "docker" "start" "-a" "f3069fea389f0b956160eede076ba0524b071478340bd0e12c68024cf934f7b8", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Arc`, `AtomicBool`, `AtomicUsize`, `Ordering`, and `Weak`
[INFO] [stderr]  --> src/shared_details.rs:1:39
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fmt::Debug, sync::{atomic::{AtomicBool, AtomicUsize, Ordering}, Arc, Weak}};
[INFO] [stderr]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^   ^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) 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 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libsync-4689304165bd067a)
[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 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 0.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f3069fea389f0b956160eede076ba0524b071478340bd0e12c68024cf934f7b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3069fea389f0b956160eede076ba0524b071478340bd0e12c68024cf934f7b8", kill_on_drop: false }`
[INFO] [stdout] f3069fea389f0b956160eede076ba0524b071478340bd0e12c68024cf934f7b8