[INFO] fetching crate subsystem-test-helpers 0.0.0...
[INFO] testing subsystem-test-helpers-0.0.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate subsystem-test-helpers 0.0.0 into /workspace/builds/worker-110/source
[INFO] validating manifest of crates.io crate subsystem-test-helpers 0.0.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate subsystem-test-helpers 0.0.0
[INFO] finished tweaking crates.io crate subsystem-test-helpers 0.0.0
[INFO] tweaked toml for crates.io crate subsystem-test-helpers 0.0.0 written to /workspace/builds/worker-110/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2b9c836441de6c0d3cb6a06ed865d8fe9285c631b564647febf4954aa9ce4f3
[INFO] running `Command { std: "docker" "start" "-a" "d2b9c836441de6c0d3cb6a06ed865d8fe9285c631b564647febf4954aa9ce4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2b9c836441de6c0d3cb6a06ed865d8fe9285c631b564647febf4954aa9ce4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2b9c836441de6c0d3cb6a06ed865d8fe9285c631b564647febf4954aa9ce4f3", kill_on_drop: false }`
[INFO] [stdout] d2b9c836441de6c0d3cb6a06ed865d8fe9285c631b564647febf4954aa9ce4f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df64dbc99f0bd6eb47d7ea228ea217e3fa3da9d241265f852bcc8032b3a469ec
[INFO] running `Command { std: "docker" "start" "-a" "df64dbc99f0bd6eb47d7ea228ea217e3fa3da9d241265f852bcc8032b3a469ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling subsystem-test-helpers v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "df64dbc99f0bd6eb47d7ea228ea217e3fa3da9d241265f852bcc8032b3a469ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df64dbc99f0bd6eb47d7ea228ea217e3fa3da9d241265f852bcc8032b3a469ec", kill_on_drop: false }`
[INFO] [stdout] df64dbc99f0bd6eb47d7ea228ea217e3fa3da9d241265f852bcc8032b3a469ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc0f2532c3253da33836323c169425ddd68b2d668dc96baf4f3aeb86325a9ca7
[INFO] running `Command { std: "docker" "start" "-a" "bc0f2532c3253da33836323c169425ddd68b2d668dc96baf4f3aeb86325a9ca7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling subsystem-test-helpers v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "bc0f2532c3253da33836323c169425ddd68b2d668dc96baf4f3aeb86325a9ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0f2532c3253da33836323c169425ddd68b2d668dc96baf4f3aeb86325a9ca7", kill_on_drop: false }`
[INFO] [stdout] bc0f2532c3253da33836323c169425ddd68b2d668dc96baf4f3aeb86325a9ca7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82080d2340be6c6d2c82f88d462e5b1685d1ef8bdda52f9d74cd2b689d8f951c
[INFO] running `Command { std: "docker" "start" "-a" "82080d2340be6c6d2c82f88d462e5b1685d1ef8bdda52f9d74cd2b689d8f951c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/subsystem_test_helpers-f8bdd454ea52f954)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests subsystem-test-helpers
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "82080d2340be6c6d2c82f88d462e5b1685d1ef8bdda52f9d74cd2b689d8f951c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82080d2340be6c6d2c82f88d462e5b1685d1ef8bdda52f9d74cd2b689d8f951c", kill_on_drop: false }`
[INFO] [stdout] 82080d2340be6c6d2c82f88d462e5b1685d1ef8bdda52f9d74cd2b689d8f951c