[INFO] fetching crate minimal-executor 0.4.1...
[INFO] testing minimal-executor-0.4.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate minimal-executor 0.4.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate minimal-executor 0.4.1
[INFO] finished tweaking crates.io crate minimal-executor 0.4.1
[INFO] tweaked toml for crates.io crate minimal-executor 0.4.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate minimal-executor 0.4.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 84 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.4.0 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81e7370a74d121a788cdc66ad790061558d3f069b49624985d1a722443b74c00
[INFO] running `Command { std: "docker" "start" "-a" "81e7370a74d121a788cdc66ad790061558d3f069b49624985d1a722443b74c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81e7370a74d121a788cdc66ad790061558d3f069b49624985d1a722443b74c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81e7370a74d121a788cdc66ad790061558d3f069b49624985d1a722443b74c00", kill_on_drop: false }`
[INFO] [stdout] 81e7370a74d121a788cdc66ad790061558d3f069b49624985d1a722443b74c00
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5454f7f379e2a38af96711ad33ef12eb4e3baf95cd0e68d9ff11cbd707c5baaa
[INFO] running `Command { std: "docker" "start" "-a" "5454f7f379e2a38af96711ad33ef12eb4e3baf95cd0e68d9ff11cbd707c5baaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling kanal v0.1.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling minimal-executor v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "5454f7f379e2a38af96711ad33ef12eb4e3baf95cd0e68d9ff11cbd707c5baaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5454f7f379e2a38af96711ad33ef12eb4e3baf95cd0e68d9ff11cbd707c5baaa", kill_on_drop: false }`
[INFO] [stdout] 5454f7f379e2a38af96711ad33ef12eb4e3baf95cd0e68d9ff11cbd707c5baaa
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c7be3f80234abca36660709118e1e13b0e0ee201d261ab67392074c14ea0dc4
[INFO] running `Command { std: "docker" "start" "-a" "2c7be3f80234abca36660709118e1e13b0e0ee201d261ab67392074c14ea0dc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling minimal-executor v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/local_pool.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Pending(Rc<()>);
[INFO] [stdout]   |        ------- ^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "2c7be3f80234abca36660709118e1e13b0e0ee201d261ab67392074c14ea0dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c7be3f80234abca36660709118e1e13b0e0ee201d261ab67392074c14ea0dc4", kill_on_drop: false }`
[INFO] [stdout] 2c7be3f80234abca36660709118e1e13b0e0ee201d261ab67392074c14ea0dc4
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2a35079f37ded7941edfb674f33730c142fed49a6fbb9f1d0fc404be1aab1bf
[INFO] running `Command { std: "docker" "start" "-a" "f2a35079f37ded7941edfb674f33730c142fed49a6fbb9f1d0fc404be1aab1bf", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> tests/local_pool.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Pending(Rc<()>);
[INFO] [stderr]   |        ------- ^^^^^^
[INFO] [stderr]   |        |
[INFO] [stderr]   |        field in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing this field
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `minimal-executor` (test "local_pool") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/minimal_executor-94854be602c27c5b)
[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]      Running tests/local_pool.rs (/opt/rustwide/target/debug/deps/local_pool-5ca24f69bd195c35)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test run_returns_if_empty ... ok
[INFO] [stdout] test run_until_single_future ... ok
[INFO] [stdout] test run_spawn_many ... ok
[INFO] [stdout] test try_run_one_returns_if_empty ... ok
[INFO] [stdout] test try_run_one_executes_one_ready ... ok
[INFO] [stderr]    Doc-tests minimal_executor
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/local_pool_busy.rs - local_pool_busy::LocalPool<'a,Ret>::run (line 73) ... ok
[INFO] [stdout] test src/local_pool_old.rs - local_pool_old::LocalPool<'a,Ret>::try_run_one (line 99) ... ok
[INFO] [stdout] test src/local_pool_busy.rs - local_pool_busy::LocalPool<'a,Ret>::try_run_one (line 105) ... ok
[INFO] [stdout] test src/local_pool_new.rs - local_pool_new::LocalPool<'a,Ret>::run (line 70) ... ok
[INFO] [stdout] test src/local_pool_new.rs - local_pool_new::LocalPool<'a,Ret>::try_run_one (line 102) ... ok
[INFO] [stdout] test src/local_pool_old.rs - local_pool_old::LocalPool<'a,Ret>::run (line 67) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.80s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f2a35079f37ded7941edfb674f33730c142fed49a6fbb9f1d0fc404be1aab1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a35079f37ded7941edfb674f33730c142fed49a6fbb9f1d0fc404be1aab1bf", kill_on_drop: false }`
[INFO] [stdout] f2a35079f37ded7941edfb674f33730c142fed49a6fbb9f1d0fc404be1aab1bf