[INFO] crate avocado 0.6.0 is already in cache
[INFO] testing avocado-0.6.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate avocado 0.6.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate avocado 0.6.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate avocado 0.6.0
[INFO] finished tweaking crates.io crate avocado 0.6.0
[INFO] tweaked toml for crates.io crate avocado 0.6.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "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" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fc853c7de7c671adc6306a217509cf8f6a2df09689ccc6748b38be4c8ecb4d1
[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" "3fc853c7de7c671adc6306a217509cf8f6a2df09689ccc6748b38be4c8ecb4d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fc853c7de7c671adc6306a217509cf8f6a2df09689ccc6748b38be4c8ecb4d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fc853c7de7c671adc6306a217509cf8f6a2df09689ccc6748b38be4c8ecb4d1", kill_on_drop: false }`
[INFO] [stdout] 3fc853c7de7c671adc6306a217509cf8f6a2df09689ccc6748b38be4c8ecb4d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e87a3d4148a78ab445e3022187ca3a00107491e8d1b54f66fee3cb2e5a8212d
[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" "3e87a3d4148a78ab445e3022187ca3a00107491e8d1b54f66fee3cb2e5a8212d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling md5 v0.3.8
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling try_from v0.2.2
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling data-encoding v2.2.1
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling crypto-mac v0.6.2
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling sha-1 v0.7.0
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling hmac v0.6.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling pbkdf2 v0.2.3
[INFO] [stderr]    Compiling scan_fmt v0.1.3
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling textnonce v0.6.5
[INFO] [stderr]    Compiling bson v0.13.0
[INFO] [stderr]    Compiling magnet_schema v0.8.0
[INFO] [stderr]    Compiling mongodb v0.3.12
[INFO] [stderr]    Compiling avocado v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/error.rs:235:34
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let backtrace = if cause.backtrace().is_none() {
[INFO] [stdout]     |                                  ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `error::ErrorExt::backtrace(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.94s
[INFO] running `Command { std: "docker" "inspect" "3e87a3d4148a78ab445e3022187ca3a00107491e8d1b54f66fee3cb2e5a8212d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e87a3d4148a78ab445e3022187ca3a00107491e8d1b54f66fee3cb2e5a8212d", kill_on_drop: false }`
[INFO] [stdout] 3e87a3d4148a78ab445e3022187ca3a00107491e8d1b54f66fee3cb2e5a8212d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2cb23b1aedd681aa458b047675d41aecffac56c51264182a3095cbe8e3726d6
[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" "a2cb23b1aedd681aa458b047675d41aecffac56c51264182a3095cbe8e3726d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling compiletest_rs v0.3.26
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling filetime v0.2.12
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/error.rs:235:34
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let backtrace = if cause.backtrace().is_none() {
[INFO] [stdout]     |                                  ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `error::ErrorExt::backtrace(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustfix v0.4.6
[INFO] [stderr]    Compiling tester v0.6.0
[INFO] [stderr]    Compiling avocado_derive v0.6.0
[INFO] [stderr]    Compiling magnet_derive v0.8.0
[INFO] [stderr]    Compiling avocado v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/basic.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 | struct AnyError(Box<Error>); // fast and loose, don't do this in prod
[INFO] [stdout]    |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/error.rs:235:34
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let backtrace = if cause.backtrace().is_none() {
[INFO] [stdout]     |                                  ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `error::ErrorExt::backtrace(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `avocado`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ops --edition=2018 tests/ops.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="magnet_schema"' --cfg 'feature="raw_uuid"' --cfg 'feature="schema_validation"' --cfg 'feature="uuid"' -C metadata=9a1759e9d5a09100 -C extra-filename=-9a1759e9d5a09100 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern avocado=/opt/rustwide/target/debug/deps/libavocado-e26973a4644968f0.rlib --extern avocado_derive=/opt/rustwide/target/debug/deps/libavocado_derive-9a069cacb6aef6dd.so --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-e661a131d5c12d61.rlib --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-02fffe573fe5be1a.rlib --extern bson=/opt/rustwide/target/debug/deps/libbson-a268c2f735f4796f.rlib --extern compiletest_rs=/opt/rustwide/target/debug/deps/libcompiletest_rs-1eff1c6fe8b75b88.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-660ab907323d6aba.rlib --extern magnet_derive=/opt/rustwide/target/debug/deps/libmagnet_derive-400b89c07db476e6.so --extern magnet_schema=/opt/rustwide/target/debug/deps/libmagnet_schema-222bdcc9add79a0c.rlib --extern mongodb=/opt/rustwide/target/debug/deps/libmongodb-3e8dbb0ba72a1f46.rlib --extern scopeguard=/opt/rustwide/target/debug/deps/libscopeguard-642d9e5e14e6c20b.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-917b7dfdcdda1c2b.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-448eafb1dc57fc21.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-36bc74b87177e4db.rlib --extern typemap=/opt/rustwide/target/debug/deps/libtypemap-8235932b470f6c4c.rlib --extern uuid=/opt/rustwide/target/debug/deps/libuuid-439de80b4e0e3006.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a2cb23b1aedd681aa458b047675d41aecffac56c51264182a3095cbe8e3726d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2cb23b1aedd681aa458b047675d41aecffac56c51264182a3095cbe8e3726d6", kill_on_drop: false }`
[INFO] [stdout] a2cb23b1aedd681aa458b047675d41aecffac56c51264182a3095cbe8e3726d6