[INFO] fetching crate tang-rs 0.2.0...
[INFO] testing tang-rs-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate tang-rs 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate tang-rs 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tang-rs 0.2.0
[INFO] finished tweaking crates.io crate tang-rs 0.2.0
[INFO] tweaked toml for crates.io crate tang-rs 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking v1.0.6
[INFO] [stderr]   Downloaded async-attributes v1.1.1
[INFO] [stderr]   Downloaded async-io v1.1.6
[INFO] [stderr]   Downloaded futures-lite v0.1.11
[INFO] [stderr]   Downloaded smol v0.1.18
[INFO] [stderr]   Downloaded polling v1.1.0
[INFO] [stderr]   Downloaded blocking v0.4.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 851e3d345f4996523b4e2ee0e7405a3b6ed5d586021f14d7bead357de0e4896f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "851e3d345f4996523b4e2ee0e7405a3b6ed5d586021f14d7bead357de0e4896f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "851e3d345f4996523b4e2ee0e7405a3b6ed5d586021f14d7bead357de0e4896f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "851e3d345f4996523b4e2ee0e7405a3b6ed5d586021f14d7bead357de0e4896f", kill_on_drop: false }`
[INFO] [stdout] 851e3d345f4996523b4e2ee0e7405a3b6ed5d586021f14d7bead357de0e4896f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c030d8909b97f580e5a2394b25963c719260d21473e240138015e8811cd402c8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c030d8909b97f580e5a2394b25963c719260d21473e240138015e8811cd402c8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tang-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/spin_pool.rs:90:23
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if self.state.compare_and_swap(FREE, LOCKED, Ordering::Acquire) == FREE {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "c030d8909b97f580e5a2394b25963c719260d21473e240138015e8811cd402c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c030d8909b97f580e5a2394b25963c719260d21473e240138015e8811cd402c8", kill_on_drop: false }`
[INFO] [stdout] c030d8909b97f580e5a2394b25963c719260d21473e240138015e8811cd402c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b301bb9cd5e8504c6c40dbbc6b6c3bd3d00e859dfe063eb50fdb2ec95a7d63c0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b301bb9cd5e8504c6c40dbbc6b6c3bd3d00e859dfe063eb50fdb2ec95a7d63c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking v1.0.6
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/spin_pool.rs:90:23
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if self.state.compare_and_swap(FREE, LOCKED, Ordering::Acquire) == FREE {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-lite v0.1.11
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling polling v1.1.0
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling async-io v1.1.6
[INFO] [stderr]    Compiling blocking v0.4.7
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling async-process v1.0.1
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling async-std v1.8.0
[INFO] [stderr]    Compiling smol v0.1.18
[INFO] [stderr]    Compiling tang-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/spin_pool.rs:90:23
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if self.state.compare_and_swap(FREE, LOCKED, Ordering::Acquire) == FREE {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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 39.30s
[INFO] running `Command { std: "docker" "inspect" "b301bb9cd5e8504c6c40dbbc6b6c3bd3d00e859dfe063eb50fdb2ec95a7d63c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b301bb9cd5e8504c6c40dbbc6b6c3bd3d00e859dfe063eb50fdb2ec95a7d63c0", kill_on_drop: false }`
[INFO] [stdout] b301bb9cd5e8504c6c40dbbc6b6c3bd3d00e859dfe063eb50fdb2ec95a7d63c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15894aa57bd96a8feb1a8be97940106ba6e8d4ab02379cac7e091ed99915af5b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "15894aa57bd96a8feb1a8be97940106ba6e8d4ab02379cac7e091ed99915af5b", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/util/spin_pool.rs:90:23
[INFO] [stderr]    |
[INFO] [stderr] 90 |         if self.state.compare_and_swap(FREE, LOCKED, Ordering::Acquire) == FREE {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/util/spin_pool.rs:90:23
[INFO] [stderr]    |
[INFO] [stderr] 90 |         if self.state.compare_and_swap(FREE, LOCKED, Ordering::Acquire) == FREE {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tang_rs-c744a3311449a7b1
[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 tang_rs
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/pool.rs - pool::Pool<M>::init (line 357) ... ignored
[INFO] [stdout] test src/pool.rs - pool::Pool<M>::run (line 302) ... ignored
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 7.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "15894aa57bd96a8feb1a8be97940106ba6e8d4ab02379cac7e091ed99915af5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15894aa57bd96a8feb1a8be97940106ba6e8d4ab02379cac7e091ed99915af5b", kill_on_drop: false }`
[INFO] [stdout] 15894aa57bd96a8feb1a8be97940106ba6e8d4ab02379cac7e091ed99915af5b