[INFO] fetching crate gosh_fhirworks2020_docugen 0.1.0...
[INFO] checking gosh_fhirworks2020_docugen-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate gosh_fhirworks2020_docugen 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate gosh_fhirworks2020_docugen 0.1.0 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 gosh_fhirworks2020_docugen 0.1.0
[INFO] finished tweaking crates.io crate gosh_fhirworks2020_docugen 0.1.0
[INFO] tweaked toml for crates.io crate gosh_fhirworks2020_docugen 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate gosh_fhirworks2020_docugen 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.9
[INFO] [stderr]   Downloaded output_vt100 v0.1.2
[INFO] [stderr]   Downloaded ctor v0.1.13
[INFO] [stderr]   Downloaded winapi-util v0.1.3
[INFO] [stderr]   Downloaded hermit-abi v0.1.8
[INFO] [stderr]   Downloaded toml v0.5.6
[INFO] [stderr]   Downloaded aho-corasick v0.7.9
[INFO] [stderr]   Downloaded regex-syntax v0.6.15
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded regex v1.3.4
[INFO] [stderr]   Downloaded pom v3.1.0
[INFO] [stderr]   Downloaded syn v1.0.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ec74c1cd04c58ea939c83f1d2da027523e1d96d130392d8bb36b207ce6f2192c
[INFO] running `Command { std: "docker" "start" "-a" "ec74c1cd04c58ea939c83f1d2da027523e1d96d130392d8bb36b207ce6f2192c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec74c1cd04c58ea939c83f1d2da027523e1d96d130392d8bb36b207ce6f2192c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec74c1cd04c58ea939c83f1d2da027523e1d96d130392d8bb36b207ce6f2192c", kill_on_drop: false }`
[INFO] [stdout] ec74c1cd04c58ea939c83f1d2da027523e1d96d130392d8bb36b207ce6f2192c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 124194a29e02c79faf5e5b3bba99830f7dbc167a65c4d847b783eae14c80b4f3
[INFO] running `Command { std: "docker" "start" "-a" "124194a29e02c79faf5e5b3bba99830f7dbc167a65c4d847b783eae14c80b4f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.15
[INFO] [stderr]     Checking pom v3.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking gosh_fhirworks2020_docugen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]  --> src/config.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use toml;
[INFO] [stdout]   |     ^^^^ the item `toml` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.71s
[INFO] running `Command { std: "docker" "inspect" "124194a29e02c79faf5e5b3bba99830f7dbc167a65c4d847b783eae14c80b4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124194a29e02c79faf5e5b3bba99830f7dbc167a65c4d847b783eae14c80b4f3", kill_on_drop: false }`
[INFO] [stdout] 124194a29e02c79faf5e5b3bba99830f7dbc167a65c4d847b783eae14c80b4f3