[INFO] fetching crate black-box 0.2.2...
[INFO] testing black-box-0.2.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate black-box 0.2.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate black-box 0.2.2
[INFO] finished tweaking crates.io crate black-box 0.2.2
[INFO] tweaked toml for crates.io crate black-box 0.2.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate black-box 0.2.2 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 black-box 0.2.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded fastrand v2.1.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.87
[INFO] [stderr]   Downloaded async-executor v1.13.1
[INFO] [stderr]   Downloaded event-listener v5.3.1
[INFO] [stderr]   Downloaded async-channel v2.3.1
[INFO] [stderr]   Downloaded bytes v1.7.2
[INFO] [stderr]   Downloaded syn v2.0.79
[INFO] [stderr]   Downloaded libc v0.2.159
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4bcdf46328873dfa5125e39c26f51117643c41e3ac7c37b202e26b036b7c46de
[INFO] running `Command { std: "docker" "start" "-a" "4bcdf46328873dfa5125e39c26f51117643c41e3ac7c37b202e26b036b7c46de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bcdf46328873dfa5125e39c26f51117643c41e3ac7c37b202e26b036b7c46de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bcdf46328873dfa5125e39c26f51117643c41e3ac7c37b202e26b036b7c46de", kill_on_drop: false }`
[INFO] [stdout] 4bcdf46328873dfa5125e39c26f51117643c41e3ac7c37b202e26b036b7c46de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a349c870578d6a0c95735ce60039f854f5e72684e034c2cd006c70ecf9f7537c
[INFO] running `Command { std: "docker" "start" "-a" "a349c870578d6a0c95735ce60039f854f5e72684e034c2cd006c70ecf9f7537c", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling event-listener v5.3.1
[INFO] [stderr]    Compiling event-listener-strategy v0.5.2
[INFO] [stderr]    Compiling async-channel v2.3.1
[INFO] [stderr]    Compiling black-box v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "a349c870578d6a0c95735ce60039f854f5e72684e034c2cd006c70ecf9f7537c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a349c870578d6a0c95735ce60039f854f5e72684e034c2cd006c70ecf9f7537c", kill_on_drop: false }`
[INFO] [stdout] a349c870578d6a0c95735ce60039f854f5e72684e034c2cd006c70ecf9f7537c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8fe81f927b2d60c5bff2aacf61df5c4a5a3bc4fa78ebb14d165ee9a19d5ddfb1
[INFO] running `Command { std: "docker" "start" "-a" "8fe81f927b2d60c5bff2aacf61df5c4a5a3bc4fa78ebb14d165ee9a19d5ddfb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling futures-lite v2.3.0
[INFO] [stderr]    Compiling fastrand v2.1.1
[INFO] [stderr]    Compiling bytes v1.7.2
[INFO] [stderr]    Compiling event-listener v5.3.1
[INFO] [stderr]    Compiling async-executor v1.13.1
[INFO] [stderr]    Compiling event-listener-strategy v0.5.2
[INFO] [stderr]    Compiling async-channel v2.3.1
[INFO] [stderr]    Compiling black-box v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.16s
[INFO] running `Command { std: "docker" "inspect" "8fe81f927b2d60c5bff2aacf61df5c4a5a3bc4fa78ebb14d165ee9a19d5ddfb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fe81f927b2d60c5bff2aacf61df5c4a5a3bc4fa78ebb14d165ee9a19d5ddfb1", kill_on_drop: false }`
[INFO] [stdout] 8fe81f927b2d60c5bff2aacf61df5c4a5a3bc4fa78ebb14d165ee9a19d5ddfb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b31ef25ad0dd4c2d3d1be7d658664edb20d2861e0cffa4ae477682f52500f836
[INFO] running `Command { std: "docker" "start" "-a" "b31ef25ad0dd4c2d3d1be7d658664edb20d2861e0cffa4ae477682f52500f836", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/black_box-68bd1a86a2a81c09)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test futures::race::tests::race_biased_on_one_ready ... ok
[INFO] [stdout] test futures::race::tests::race_biased_on_ready ... ok
[INFO] [stderr]    Doc-tests black_box
[INFO] [stdout] test futures::race::tests::race_biased_on_not_ready ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 85) ... ignored
[INFO] [stdout] test src/executor.rs - executor::Executor (line 51) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 15) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b31ef25ad0dd4c2d3d1be7d658664edb20d2861e0cffa4ae477682f52500f836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31ef25ad0dd4c2d3d1be7d658664edb20d2861e0cffa4ae477682f52500f836", kill_on_drop: false }`
[INFO] [stdout] b31ef25ad0dd4c2d3d1be7d658664edb20d2861e0cffa4ae477682f52500f836