[INFO] fetching crate stash 0.1.4...
[INFO] testing stash-0.1.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate stash 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate stash 0.1.4 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stash 0.1.4
[INFO] finished tweaking crates.io crate stash 0.1.4
[INFO] tweaked toml for crates.io crate stash 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate stash 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 595778deb46c2e68340e18dd62f65b441a03c3076d357bf1082277839315f199
[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" "595778deb46c2e68340e18dd62f65b441a03c3076d357bf1082277839315f199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "595778deb46c2e68340e18dd62f65b441a03c3076d357bf1082277839315f199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "595778deb46c2e68340e18dd62f65b441a03c3076d357bf1082277839315f199", kill_on_drop: false }`
[INFO] [stdout] 595778deb46c2e68340e18dd62f65b441a03c3076d357bf1082277839315f199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd76cb37bd5b93652115934e2cfd1c782a74b9fa7ffccb2313fcbe64a4eb17bb
[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" "fd76cb37bd5b93652115934e2cfd1c782a74b9fa7ffccb2313fcbe64a4eb17bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling stash v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/unique_stash/mod.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |         f.write_str(self.description())
[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 1.27s
[INFO] running `Command { std: "docker" "inspect" "fd76cb37bd5b93652115934e2cfd1c782a74b9fa7ffccb2313fcbe64a4eb17bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd76cb37bd5b93652115934e2cfd1c782a74b9fa7ffccb2313fcbe64a4eb17bb", kill_on_drop: false }`
[INFO] [stdout] fd76cb37bd5b93652115934e2cfd1c782a74b9fa7ffccb2313fcbe64a4eb17bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f05140d2eaa9c2f878a6aab142f6fc66a93a9b63e8d79d5f76d6800f6175cd3
[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" "5f05140d2eaa9c2f878a6aab142f6fc66a93a9b63e8d79d5f76d6800f6175cd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/unique_stash/mod.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |         f.write_str(self.description())
[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]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling stash v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/unique_stash/mod.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |         f.write_str(self.description())
[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 7.71s
[INFO] running `Command { std: "docker" "inspect" "5f05140d2eaa9c2f878a6aab142f6fc66a93a9b63e8d79d5f76d6800f6175cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f05140d2eaa9c2f878a6aab142f6fc66a93a9b63e8d79d5f76d6800f6175cd3", kill_on_drop: false }`
[INFO] [stdout] 5f05140d2eaa9c2f878a6aab142f6fc66a93a9b63e8d79d5f76d6800f6175cd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 58c37e8837ad179935684e25d96170371217d8e0b5998ffb58784b02b86b5128
[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" "58c37e8837ad179935684e25d96170371217d8e0b5998ffb58784b02b86b5128", 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] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/unique_stash/mod.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 |         f.write_str(self.description())
[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::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/unique_stash/mod.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 |         f.write_str(self.description())
[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 1.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stash-2b778801f6f0a3eb
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stash-7c297e5241a8781f
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unique_stash-0e573f89187a6cdc
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test clear_zero ... ok
[INFO] [stdout] test get ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test get ... ok
[INFO] [stdout] test no_reuse ... ok
[INFO] [stdout] test string_conversions ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test string_format ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stash
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/unique_stash/mod.rs - unique_stash::UniqueStash<V>::len (line 251) ... ok
[INFO] [stdout] test src/stash/mod.rs - stash::Stash<V, Ix>::capacity (line 204) ... ok
[INFO] [stdout] test src/stash/mod.rs - stash::Stash<V, Ix>::reserve_exact (line 271) ... ok
[INFO] [stdout] test src/stash/mod.rs - stash::Stash<V, usize>::with_capacity (line 170) ... ok
[INFO] [stdout] test src/unique_stash/mod.rs - unique_stash::UniqueStash<V>::new (line 185) ... ok
[INFO] [stdout] test src/unique_stash/mod.rs - unique_stash::UniqueStash<V>::reserve (line 274) ... ok
[INFO] [stdout] test src/stash/mod.rs - stash::Stash<V, Ix>::len (line 219) ... ok
[INFO] [stdout] test src/stash/mod.rs - stash::Stash<V, usize>::new (line 143) ... ok
[INFO] [stdout] test src/unique_stash/mod.rs - unique_stash::UniqueStash<V>::capacity (line 236) ... ok
[INFO] [stdout] test src/unique_stash/mod.rs - unique_stash::UniqueStash<V>::reserve_exact (line 303) ... ok
[INFO] [stdout] test src/stash/mod.rs - stash::Stash<V, Ix>::reserve (line 242) ... ok
[INFO] [stdout] test src/unique_stash/mod.rs - unique_stash::UniqueStash<V>::with_capacity (line 207) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "58c37e8837ad179935684e25d96170371217d8e0b5998ffb58784b02b86b5128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58c37e8837ad179935684e25d96170371217d8e0b5998ffb58784b02b86b5128", kill_on_drop: false }`
[INFO] [stdout] 58c37e8837ad179935684e25d96170371217d8e0b5998ffb58784b02b86b5128