[INFO] fetching crate concat-util 0.2.0... [INFO] checking concat-util-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate concat-util 0.2.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate concat-util 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate concat-util 0.2.0 [INFO] finished tweaking crates.io crate concat-util 0.2.0 [INFO] tweaked toml for crates.io crate concat-util 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate concat-util 0.2.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unicode-segmentation v1.3.0 [INFO] [stderr] Downloaded bitflags v1.1.0 [INFO] [stderr] Downloaded proc-macro-error v0.2.6 [INFO] [stderr] Downloaded proc-macro2 v1.0.3 [INFO] [stderr] Downloaded structopt v0.3.1 [INFO] [stderr] Downloaded syn v1.0.5 [INFO] [stderr] Downloaded libc v0.2.62 [INFO] [stderr] Downloaded structopt-derive v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 46c7e6c41ef1aabf61c3f655413e03ddf7f8e220fdb79e98c68e34040a5144c0 [INFO] running `Command { std: "docker" "start" "-a" "46c7e6c41ef1aabf61c3f655413e03ddf7f8e220fdb79e98c68e34040a5144c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "46c7e6c41ef1aabf61c3f655413e03ddf7f8e220fdb79e98c68e34040a5144c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46c7e6c41ef1aabf61c3f655413e03ddf7f8e220fdb79e98c68e34040a5144c0", kill_on_drop: false }` [INFO] [stdout] 46c7e6c41ef1aabf61c3f655413e03ddf7f8e220fdb79e98c68e34040a5144c0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cc10cc7f61fd2d639d2994edd94a0c69799943b99154a5e0ff6a32193b243440 [INFO] running `Command { std: "docker" "start" "-a" "cc10cc7f61fd2d639d2994edd94a0c69799943b99154a5e0ff6a32193b243440", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Compiling proc-macro2 v1.0.3 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling proc-macro-error v0.2.6 [INFO] [stderr] Compiling structopt-derive v0.3.1 [INFO] [stderr] Checking structopt v0.3.1 [INFO] [stderr] Checking concat-util v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.09s [INFO] running `Command { std: "docker" "inspect" "cc10cc7f61fd2d639d2994edd94a0c69799943b99154a5e0ff6a32193b243440", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc10cc7f61fd2d639d2994edd94a0c69799943b99154a5e0ff6a32193b243440", kill_on_drop: false }` [INFO] [stdout] cc10cc7f61fd2d639d2994edd94a0c69799943b99154a5e0ff6a32193b243440