[INFO] fetching crate hubs 0.1.1...
[INFO] testing hubs-0.1.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate hubs 0.1.1 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate hubs 0.1.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hubs 0.1.1
[INFO] finished tweaking crates.io crate hubs 0.1.1
[INFO] tweaked toml for crates.io crate hubs 0.1.1 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d08f2c3980c2a4dda4753f7f5bb2e3a07829d0183dda2aafe0f355a68f7efe63
[INFO] running `Command { std: "docker" "start" "-a" "d08f2c3980c2a4dda4753f7f5bb2e3a07829d0183dda2aafe0f355a68f7efe63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d08f2c3980c2a4dda4753f7f5bb2e3a07829d0183dda2aafe0f355a68f7efe63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d08f2c3980c2a4dda4753f7f5bb2e3a07829d0183dda2aafe0f355a68f7efe63", kill_on_drop: false }`
[INFO] [stdout] d08f2c3980c2a4dda4753f7f5bb2e3a07829d0183dda2aafe0f355a68f7efe63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a85902c1e332baf5cba4e182aa5e3ce085f9bd6bfdeb900cce19b8f5ddf2af18
[INFO] running `Command { std: "docker" "start" "-a" "a85902c1e332baf5cba4e182aa5e3ce085f9bd6bfdeb900cce19b8f5ddf2af18", kill_on_drop: false }`
[INFO] [stderr]    Compiling hubs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "a85902c1e332baf5cba4e182aa5e3ce085f9bd6bfdeb900cce19b8f5ddf2af18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a85902c1e332baf5cba4e182aa5e3ce085f9bd6bfdeb900cce19b8f5ddf2af18", kill_on_drop: false }`
[INFO] [stdout] a85902c1e332baf5cba4e182aa5e3ce085f9bd6bfdeb900cce19b8f5ddf2af18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34e41fc7705b00aed1e876e6f38998ebe66103ef8fa1d7d5aaba680042617236
[INFO] running `Command { std: "docker" "start" "-a" "34e41fc7705b00aed1e876e6f38998ebe66103ef8fa1d7d5aaba680042617236", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hubs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> tests/hubs_test_basic.rs:317:17
[INFO] [stdout]     |
[INFO] [stdout] 317 |             for i in 0 .. chunk_count{
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "34e41fc7705b00aed1e876e6f38998ebe66103ef8fa1d7d5aaba680042617236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34e41fc7705b00aed1e876e6f38998ebe66103ef8fa1d7d5aaba680042617236", kill_on_drop: false }`
[INFO] [stdout] 34e41fc7705b00aed1e876e6f38998ebe66103ef8fa1d7d5aaba680042617236
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c0f3baec96dba6bf1f19b615a437231b2a6fe9698d0ffb46f4cc4d7f91db6e31
[INFO] running `Command { std: "docker" "start" "-a" "c0f3baec96dba6bf1f19b615a437231b2a6fe9698d0ffb46f4cc4d7f91db6e31", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> tests/hubs_test_basic.rs:317:17
[INFO] [stderr]     |
[INFO] [stderr] 317 |             for i in 0 .. chunk_count{
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `hubs` (test "hubs_test_basic") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hubs-57a7bd29164bd993)
[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/hubs_test_basic.rs (/opt/rustwide/target/debug/deps/hubs_test_basic-22a71bfdb44ee161)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test tests::test_stress_large ... ignored
[INFO] [stdout] test tests::test_iterator_drop_clears ... ok
[INFO] [stdout] test tests::test_reading_does_not_modify_writeability ... ok
[INFO] [stdout] test tests::test_with_capacity ... ok
[INFO] [stdout] test tests::test_with_default ... ok
[INFO] [stdout] test tests::test_full ... ok
[INFO] [stdout] test tests::test_weird_api_stuff ... ok
[INFO] [stdout] test tests::test_basic_usage ... ok
[INFO] [stdout] test tests::test_write_single ... ok
[INFO] [stdout] test tests::test_dirty_write ... ok
[INFO] [stdout] test tests::test_refill ... ok
[INFO] [stdout] test tests::test_cannot_get_two_writeable_chunks - should panic ... ok
[INFO] [stdout] test tests::test_stress_small ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.52s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hubs
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Hubs (line 33) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.55s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c0f3baec96dba6bf1f19b615a437231b2a6fe9698d0ffb46f4cc4d7f91db6e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f3baec96dba6bf1f19b615a437231b2a6fe9698d0ffb46f4cc4d7f91db6e31", kill_on_drop: false }`
[INFO] [stdout] c0f3baec96dba6bf1f19b615a437231b2a6fe9698d0ffb46f4cc4d7f91db6e31