[INFO] fetching crate atelier_json 0.2.7...
[INFO] checking atelier_json-0.2.7 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate atelier_json 0.2.7 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate atelier_json 0.2.7 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 atelier_json 0.2.7
[INFO] finished tweaking crates.io crate atelier_json 0.2.7
[INFO] tweaked toml for crates.io crate atelier_json 0.2.7 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate crates.io crate atelier_json 0.2.7 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] efa87d0e3951a251e59cb8d6a890e9ec89bcb6c9f0540a409f7f1eeb8d911a0d
[INFO] running `Command { std: "docker" "start" "-a" "efa87d0e3951a251e59cb8d6a890e9ec89bcb6c9f0540a409f7f1eeb8d911a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efa87d0e3951a251e59cb8d6a890e9ec89bcb6c9f0540a409f7f1eeb8d911a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa87d0e3951a251e59cb8d6a890e9ec89bcb6c9f0540a409f7f1eeb8d911a0d", kill_on_drop: false }`
[INFO] [stdout] efa87d0e3951a251e59cb8d6a890e9ec89bcb6c9f0540a409f7f1eeb8d911a0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] ffb5b93e7388afa7113ce13f4deb73f85e5bb694b7fd1a327e8c473185de3935
[INFO] running `Command { std: "docker" "start" "-a" "ffb5b93e7388afa7113ce13f4deb73f85e5bb694b7fd1a327e8c473185de3935", 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]   serde v1.0.126: default
[INFO] [stderr] 
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking pretty_assertions v0.7.2
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking atelier_core v0.2.22
[INFO] [stderr]     Checking atelier_test v0.1.4
[INFO] [stderr]     Checking assert-json-diff v2.0.1
[INFO] [stderr]     Checking atelier_json v0.2.7 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/json_weather.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/json_success_tests.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/json_simple_parse_tests.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/json_regression_tests.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/json_model_to_ast.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.50s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking atelier_json v0.2.7 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "ffb5b93e7388afa7113ce13f4deb73f85e5bb694b7fd1a327e8c473185de3935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb5b93e7388afa7113ce13f4deb73f85e5bb694b7fd1a327e8c473185de3935", kill_on_drop: false }`
[INFO] [stdout] ffb5b93e7388afa7113ce13f4deb73f85e5bb694b7fd1a327e8c473185de3935