[INFO] fetching crate dcmdump 0.5.0...
[INFO] checking dcmdump-0.5.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate dcmdump 0.5.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate dcmdump 0.5.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dcmdump 0.5.0
[INFO] finished tweaking crates.io crate dcmdump 0.5.0
[INFO] tweaked toml for crates.io crate dcmdump 0.5.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate dcmdump 0.5.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded term_size v0.3.2
[INFO] [stderr]   Downloaded miniz_oxide v0.5.1
[INFO] [stderr]   Downloaded snafu v0.7.0
[INFO] [stderr]   Downloaded backtrace v0.3.65
[INFO] [stderr]   Downloaded ghost v0.1.4
[INFO] [stderr]   Downloaded tracing-attributes v0.1.21
[INFO] [stderr]   Downloaded safe-transmute v0.11.2
[INFO] [stderr]   Downloaded object v0.28.3
[INFO] [stderr]   Downloaded byteordered v0.6.0
[INFO] [stderr]   Downloaded rayon-core v1.9.2
[INFO] [stderr]   Downloaded dicom-dictionary-std v0.5.0
[INFO] [stderr]   Downloaded rayon v1.5.2
[INFO] [stderr]   Downloaded jpeg-decoder v0.2.4
[INFO] [stderr]   Downloaded dicom-dump v0.5.0
[INFO] [stderr]   Downloaded dicom-transfer-syntax-registry v0.5.0
[INFO] [stderr]   Downloaded dicom v0.5.0
[INFO] [stderr]   Downloaded dicom-encoding v0.5.0
[INFO] [stderr]   Downloaded dicom-object v0.5.0
[INFO] [stderr]   Downloaded snafu-derive v0.7.0
[INFO] [stderr]   Downloaded dicom-parser v0.5.0
[INFO] [stderr]   Downloaded dicom-core v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ca41b52d997a146f000ec1807a49f09745228ff06d0b85258a3380c2beb293b
[INFO] running `Command { std: "docker" "start" "-a" "6ca41b52d997a146f000ec1807a49f09745228ff06d0b85258a3380c2beb293b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ca41b52d997a146f000ec1807a49f09745228ff06d0b85258a3380c2beb293b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ca41b52d997a146f000ec1807a49f09745228ff06d0b85258a3380c2beb293b", kill_on_drop: false }`
[INFO] [stdout] 6ca41b52d997a146f000ec1807a49f09745228ff06d0b85258a3380c2beb293b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef0d8aeb9f66537b85cd3bf64f21c6b90193a8ea6e905a73a6d43fe8465f8a6e
[INFO] running `Command { std: "docker" "start" "-a" "ef0d8aeb9f66537b85cd3bf64f21c6b90193a8ea6e905a73a6d43fe8465f8a6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]     Checking object v0.28.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling rayon v1.5.2
[INFO] [stderr]     Checking safe-transmute v0.11.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking byteordered v0.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking jpeg-decoder v0.2.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling snafu-derive v0.7.0
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling ghost v0.1.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking inventory v0.2.3
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking snafu v0.7.0
[INFO] [stderr]     Checking dicom-core v0.5.0
[INFO] [stderr]     Checking dicom-dictionary-std v0.5.0
[INFO] [stderr]     Checking dicom-encoding v0.5.0
[INFO] [stderr]     Checking dicom-parser v0.5.0
[INFO] [stderr]     Checking dicom-transfer-syntax-registry v0.5.0
[INFO] [stderr]     Checking dicom-object v0.5.0
[INFO] [stderr]     Checking dicom-dump v0.5.0
[INFO] [stderr]     Checking dicom v0.5.0
[INFO] [stderr]     Checking dcmdump v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.90s
[INFO] running `Command { std: "docker" "inspect" "ef0d8aeb9f66537b85cd3bf64f21c6b90193a8ea6e905a73a6d43fe8465f8a6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef0d8aeb9f66537b85cd3bf64f21c6b90193a8ea6e905a73a6d43fe8465f8a6e", kill_on_drop: false }`
[INFO] [stdout] ef0d8aeb9f66537b85cd3bf64f21c6b90193a8ea6e905a73a6d43fe8465f8a6e