[INFO] fetching crate avocado 0.6.0...
[INFO] checking avocado-0.6.0 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate avocado 0.6.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate avocado 0.6.0 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded magnet_derive v0.8.0
[INFO] [stderr]   Downloaded avocado_derive v0.6.0
[INFO] [stderr]   Downloaded magnet_schema v0.8.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a72e220e727b15da5fabf619626279953c7931c1956774a860bd1b59ef2a7426
[INFO] running `"docker" "start" "-a" "a72e220e727b15da5fabf619626279953c7931c1956774a860bd1b59ef2a7426"`
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking constant_time_eq v0.1.4
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling compiletest_rs v0.3.25
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking diff v0.1.11
[INFO] [stderr]     Checking semver v0.8.0
[INFO] [stderr]     Checking filetime v0.2.7
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking scan_fmt v0.1.3
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking textnonce v0.6.5
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.6.2
[INFO] [stderr]     Checking tester v0.5.0
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking hmac v0.6.3
[INFO] [stderr]     Checking md-5 v0.7.0
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking pbkdf2 v0.2.3
[INFO] [stderr]     Checking bson v0.13.0
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]     Checking mongodb v0.3.12
[INFO] [stderr]     Checking magnet_schema v0.8.0
[INFO] [stderr]     Checking avocado v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling magnet_derive v0.8.0
[INFO] [stderr]    Compiling avocado_derive v0.6.0
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/error.rs:235:34
[INFO] [stderr]     |
[INFO] [stderr] 235 |         let backtrace = if cause.backtrace().is_none() {
[INFO] [stderr]     |                                  ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `error::ErrorExt::backtrace(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(backtrace)]` to the crate attributes to enable `std::error::Error::backtrace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/basic.rs:99:21
[INFO] [stderr]    |
[INFO] [stderr] 99 | struct AnyError(Box<Error>); // fast and loose, don't do this in prod
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/error.rs:235:34
[INFO] [stderr]     |
[INFO] [stderr] 235 |         let backtrace = if cause.backtrace().is_none() {
[INFO] [stderr]     |                                  ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `error::ErrorExt::backtrace(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(backtrace)]` to the crate attributes to enable `std::error::Error::backtrace`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.83s
[INFO] running `"docker" "inspect" "a72e220e727b15da5fabf619626279953c7931c1956774a860bd1b59ef2a7426"`
[INFO] running `"docker" "rm" "-f" "a72e220e727b15da5fabf619626279953c7931c1956774a860bd1b59ef2a7426"`
[INFO] [stdout] a72e220e727b15da5fabf619626279953c7931c1956774a860bd1b59ef2a7426