[INFO] fetching crate serde_json_lenient 0.2.1...
[INFO] checking serde_json_lenient-0.2.1 against master#05eac57ef6668c9d181b65aceb96b1e7881f60be for pr-127656
[INFO] extracting crate serde_json_lenient 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate serde_json_lenient 0.2.1 on toolchain 05eac57ef6668c9d181b65aceb96b1e7881f60be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_json_lenient 0.2.1
[INFO] finished tweaking crates.io crate serde_json_lenient 0.2.1
[INFO] tweaked toml for crates.io crate serde_json_lenient 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_spanned v0.6.6
[INFO] [stderr]   Downloaded trybuild v1.0.97
[INFO] [stderr]   Downloaded serde_stacker v0.1.11
[INFO] [stderr]   Downloaded automod v1.0.14
[INFO] [stderr]   Downloaded winnow v0.6.13
[INFO] [stderr]   Downloaded toml v0.8.14
[INFO] [stderr]   Downloaded indoc v2.0.5
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.23
[INFO] [stderr]   Downloaded toml_edit v0.22.15
[INFO] [stderr]   Downloaded ref-cast v1.0.23
[INFO] [stderr]   Downloaded rustversion v1.0.17
[INFO] [stderr]   Downloaded psm v0.1.21
[INFO] [stderr]   Downloaded stacker v0.1.15
[INFO] [stderr]   Downloaded toml_datetime v0.6.6
[INFO] [stderr]   Downloaded termcolor v1.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df407ea6dcef3089196022e0e8876ae8924d3128b86fbd5fb1a7ae621bfd267e
[INFO] running `Command { std: "docker" "start" "-a" "df407ea6dcef3089196022e0e8876ae8924d3128b86fbd5fb1a7ae621bfd267e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df407ea6dcef3089196022e0e8876ae8924d3128b86fbd5fb1a7ae621bfd267e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df407ea6dcef3089196022e0e8876ae8924d3128b86fbd5fb1a7ae621bfd267e", kill_on_drop: false }`
[INFO] [stdout] df407ea6dcef3089196022e0e8876ae8924d3128b86fbd5fb1a7ae621bfd267e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffc98cbd2c8c1f46bc84b5c895d17d6aaec2eb2b4bffcec0e3868a38ba9003b7
[INFO] running `Command { std: "docker" "start" "-a" "ffc98cbd2c8c1f46bc84b5c895d17d6aaec2eb2b4bffcec0e3868a38ba9003b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling cc v1.1.5
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking winnow v0.6.13
[INFO] [stderr]    Compiling serde_json_lenient v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ref-cast v1.0.23
[INFO] [stderr]    Compiling trybuild v1.0.97
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking dissimilar v1.0.9
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.71
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling ref-cast-impl v1.0.23
[INFO] [stderr]    Compiling automod v1.0.14
[INFO] [stderr]     Checking serde_spanned v0.6.6
[INFO] [stderr]     Checking toml_datetime v0.6.6
[INFO] [stderr]     Checking serde_json v1.0.120
[INFO] [stderr]     Checking serde_stacker v0.1.11
[INFO] [stderr]     Checking serde_bytes v0.11.15
[INFO] [stderr]     Checking toml_edit v0.22.15
[INFO] [stderr]     Checking toml v0.8.14
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.65s
[INFO] running `Command { std: "docker" "inspect" "ffc98cbd2c8c1f46bc84b5c895d17d6aaec2eb2b4bffcec0e3868a38ba9003b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffc98cbd2c8c1f46bc84b5c895d17d6aaec2eb2b4bffcec0e3868a38ba9003b7", kill_on_drop: false }`
[INFO] [stdout] ffc98cbd2c8c1f46bc84b5c895d17d6aaec2eb2b4bffcec0e3868a38ba9003b7
[ERROR] this task or one of its parent failed!
[ERROR] error sending request for url (https://crater.rust-lang.org/agent-api/record-progress): connection closed before message completed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.