[INFO] fetching crate tomq 0.1.2...
[INFO] checking tomq-0.1.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate tomq 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate tomq 0.1.2 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 tomq 0.1.2
[INFO] finished tweaking crates.io crate tomq 0.1.2
[INFO] tweaked toml for crates.io crate tomq 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate tomq 0.1.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.14.4
[INFO] [stderr]   Downloaded serde_json v1.0.85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bf3b95a41e48b11c64e83f61160b59c88c4bd5d2cc736ff11115aafce5f9d469
[INFO] running `Command { std: "docker" "start" "-a" "bf3b95a41e48b11c64e83f61160b59c88c4bd5d2cc736ff11115aafce5f9d469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf3b95a41e48b11c64e83f61160b59c88c4bd5d2cc736ff11115aafce5f9d469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf3b95a41e48b11c64e83f61160b59c88c4bd5d2cc736ff11115aafce5f9d469", kill_on_drop: false }`
[INFO] [stdout] bf3b95a41e48b11c64e83f61160b59c88c4bd5d2cc736ff11115aafce5f9d469
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 371731c921595906f0527183109f814e4c58cc819cfb1d614b72db431374173b
[INFO] running `Command { std: "docker" "start" "-a" "371731c921595906f0527183109f814e4c58cc819cfb1d614b72db431374173b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking once_cell v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking toml_edit v0.14.4
[INFO] [stderr]     Checking tomq v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `JsonIter` is never used
[INFO] [stdout]  --> src/dociter.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) trait JsonIter: Iterator<Item = crate::error::Result<serde_json::Value>> {}
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `JsonIter` is never used
[INFO] [stdout]  --> src/dociter.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) trait JsonIter: Iterator<Item = crate::error::Result<serde_json::Value>> {}
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.96s
[INFO] running `Command { std: "docker" "inspect" "371731c921595906f0527183109f814e4c58cc819cfb1d614b72db431374173b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "371731c921595906f0527183109f814e4c58cc819cfb1d614b72db431374173b", kill_on_drop: false }`
[INFO] [stdout] 371731c921595906f0527183109f814e4c58cc819cfb1d614b72db431374173b