[INFO] fetching crate postform_serial 0.4.0...
[INFO] checking postform_serial-0.4.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate postform_serial 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate postform_serial 0.4.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate postform_serial 0.4.0
[INFO] finished tweaking crates.io crate postform_serial 0.4.0
[INFO] tweaked toml for crates.io crate postform_serial 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate postform_serial 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d08f9354389f9329eb974f89667bbbe6a0b63f3077aa64c206b76a1c26537822
[INFO] running `Command { std: "docker" "start" "-a" "d08f9354389f9329eb974f89667bbbe6a0b63f3077aa64c206b76a1c26537822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d08f9354389f9329eb974f89667bbbe6a0b63f3077aa64c206b76a1c26537822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d08f9354389f9329eb974f89667bbbe6a0b63f3077aa64c206b76a1c26537822", kill_on_drop: false }`
[INFO] [stdout] d08f9354389f9329eb974f89667bbbe6a0b63f3077aa64c206b76a1c26537822
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] feae864df89bde58fba97d341618935e5dd5919a56d863502b1b129113ad9e63
[INFO] running `Command { std: "docker" "start" "-a" "feae864df89bde58fba97d341618935e5dd5919a56d863502b1b129113ad9e63", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking owo-colors v1.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking wasmparser v0.57.0
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking rcobs v0.1.1
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]     Checking tracing-subscriber v0.2.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking serialport v4.0.1
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tracing-error v0.1.2
[INFO] [stderr]     Checking color-spantrace v0.1.6
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking color-eyre v0.5.11
[INFO] [stderr]    Compiling postform_decoder v0.4.0
[INFO] [stderr]     Checking postform_serial v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.42s
[INFO] running `Command { std: "docker" "inspect" "feae864df89bde58fba97d341618935e5dd5919a56d863502b1b129113ad9e63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feae864df89bde58fba97d341618935e5dd5919a56d863502b1b129113ad9e63", kill_on_drop: false }`
[INFO] [stdout] feae864df89bde58fba97d341618935e5dd5919a56d863502b1b129113ad9e63