[INFO] fetching crate ratsio 0.4.0-alpha.1...
[INFO] checking ratsio-0.4.0-alpha.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate ratsio 0.4.0-alpha.1 into /workspace/builds/worker-98/source
[INFO] validating manifest of crates.io crate ratsio 0.4.0-alpha.1 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ratsio 0.4.0-alpha.1
[INFO] finished tweaking crates.io crate ratsio 0.4.0-alpha.1
[INFO] tweaked toml for crates.io crate ratsio 0.4.0-alpha.1 written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] crate crates.io crate ratsio 0.4.0-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.2.6
[INFO] [stderr]   Downloaded atomic-counter v1.0.1
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded darling_core v0.9.0
[INFO] [stderr]   Downloaded subtle-encoding v0.5.1
[INFO] [stderr]   Downloaded futures v0.3.14
[INFO] [stderr]   Downloaded darling_macro v0.9.0
[INFO] [stderr]   Downloaded darling v0.9.0
[INFO] [stderr]   Downloaded futures-macro v0.3.14
[INFO] [stderr]   Downloaded ed25519 v1.0.3
[INFO] [stderr]   Downloaded pin-project-internal v1.0.6
[INFO] [stderr]   Downloaded pin-project v1.0.6
[INFO] [stderr]   Downloaded prost-derive v0.7.0
[INFO] [stderr]   Downloaded tokio-util v0.6.6
[INFO] [stderr]   Downloaded derive_builder v0.7.2
[INFO] [stderr]   Downloaded prost v0.7.0
[INFO] [stderr]   Downloaded signature v1.3.0
[INFO] [stderr]   Downloaded curve25519-dalek v3.1.0
[INFO] [stderr]   Downloaded prost-types v0.7.0
[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] [stderr]   Downloaded nkeys v0.1.0
[INFO] [stderr]   Downloaded which v4.1.0
[INFO] [stderr]   Downloaded mio v0.7.11
[INFO] [stderr]   Downloaded signatory v0.21.0
[INFO] [stderr]   Downloaded derive_builder_core v0.5.0
[INFO] [stderr]   Downloaded futures-io v0.3.14
[INFO] [stderr]   Downloaded tokio v1.5.0
[INFO] [stderr]   Downloaded prost-build v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33f65090ec3b2058d5f054e8851eea79e6a5fb6d8055c08b6b5b240d2c72ff28
[INFO] running `Command { std: "docker" "start" "-a" "33f65090ec3b2058d5f054e8851eea79e6a5fb6d8055c08b6b5b240d2c72ff28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33f65090ec3b2058d5f054e8851eea79e6a5fb6d8055c08b6b5b240d2c72ff28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f65090ec3b2058d5f054e8851eea79e6a5fb6d8055c08b6b5b240d2c72ff28", kill_on_drop: false }`
[INFO] [stdout] 33f65090ec3b2058d5f054e8851eea79e6a5fb6d8055c08b6b5b240d2c72ff28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c29c07c11c8d7b1337e54bb2fd7c0e215052034302ab5a7c4ca1c55fe96ab354
[INFO] running `Command { std: "docker" "start" "-a" "c29c07c11c8d7b1337e54bb2fd7c0e215052034302ab5a7c4ca1c55fe96ab354", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   bytes v1.0.1 (as host dependency): default, std
[INFO] [stderr]   libc v0.2.93: extra_traits
[INFO] [stderr]   libc v0.2.93 (as host dependency): extra_traits
[INFO] [stderr]   log v0.4.14 (as host dependency): std
[INFO] [stderr]   prost v0.7.0 (as host dependency): default, std
[INFO] [stderr] 
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking atomic-counter v1.0.1
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]     Checking pin-project v1.0.6
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]    Compiling ratsio v0.4.0-alpha.1 (/tmp/fixit)
[INFO] [stderr]    Migrating build.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/stan_publish.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/nats_subscribe.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/nats_client_test.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/nats_pub_user.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/nats_sub_user.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/nats_sub_token.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/stan_subscribe.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/nats_pub_token.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/nats_publish.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/nats_sub_tls.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed examples/nats_subscribe.rs (1 fix)
[INFO] [stderr]        Fixed tests/nats_client_test.rs (2 fixes)
[INFO] [stderr]        Fixed examples/nats_sub_user.rs (1 fix)
[INFO] [stderr]        Fixed examples/nats_sub_token.rs (1 fix)
[INFO] [stderr]        Fixed examples/stan_subscribe.rs (1 fix)
[INFO] [stderr]        Fixed examples/nats_publish.rs (1 fix)
[INFO] [stderr]        Fixed examples/nats_sub_tls.rs (1 fix)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.05s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling ratsio v0.4.0-alpha.1 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.75s
[INFO] running `Command { std: "docker" "inspect" "c29c07c11c8d7b1337e54bb2fd7c0e215052034302ab5a7c4ca1c55fe96ab354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c29c07c11c8d7b1337e54bb2fd7c0e215052034302ab5a7c4ca1c55fe96ab354", kill_on_drop: false }`
[INFO] [stdout] c29c07c11c8d7b1337e54bb2fd7c0e215052034302ab5a7c4ca1c55fe96ab354