[INFO] fetching crate cdumay_error_json 0.1.11...
[INFO] checking cdumay_error_json-0.1.11 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate cdumay_error_json 0.1.11 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate cdumay_error_json 0.1.11
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cdumay_error_json 0.1.11
[INFO] tweaked toml for crates.io crate cdumay_error_json 0.1.11 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cdumay_error_json 0.1.11 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cdumay_error_json 0.1.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a06d03729806e38ee59c107d97d54adbfa411a09374932dd2c5d09ace450a730
[INFO] running `Command { std: "docker" "start" "-a" "a06d03729806e38ee59c107d97d54adbfa411a09374932dd2c5d09ace450a730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a06d03729806e38ee59c107d97d54adbfa411a09374932dd2c5d09ace450a730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a06d03729806e38ee59c107d97d54adbfa411a09374932dd2c5d09ace450a730", kill_on_drop: false }`
[INFO] [stdout] a06d03729806e38ee59c107d97d54adbfa411a09374932dd2c5d09ace450a730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9e014291346ca64b378ec2cd2ccdf4a952d61ec00a8b341db23479ae9389f68
[INFO] running `Command { std: "docker" "start" "-a" "c9e014291346ca64b378ec2cd2ccdf4a952d61ec00a8b341db23479ae9389f68", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking cdumay_core v0.1.6
[INFO] [stderr]     Checking cdumay_error_json v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> tests/test_json_error.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     struct MyStruct {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 28 |         key: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.35s
[INFO] running `Command { std: "docker" "inspect" "c9e014291346ca64b378ec2cd2ccdf4a952d61ec00a8b341db23479ae9389f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9e014291346ca64b378ec2cd2ccdf4a952d61ec00a8b341db23479ae9389f68", kill_on_drop: false }`
[INFO] [stdout] c9e014291346ca64b378ec2cd2ccdf4a952d61ec00a8b341db23479ae9389f68
