[INFO] fetching crate cborg 0.3.0...
[INFO] checking cborg-0.3.0 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate cborg 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cborg 0.3.0 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cborg 0.3.0
[INFO] finished tweaking crates.io crate cborg 0.3.0
[INFO] tweaked toml for crates.io crate cborg 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 866c226e018e331d36836a148dae29ea59bf09db97329bf6c10f002d7149561a
[INFO] running `Command { std: "docker" "start" "-a" "866c226e018e331d36836a148dae29ea59bf09db97329bf6c10f002d7149561a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "866c226e018e331d36836a148dae29ea59bf09db97329bf6c10f002d7149561a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "866c226e018e331d36836a148dae29ea59bf09db97329bf6c10f002d7149561a", kill_on_drop: false }`
[INFO] [stdout] 866c226e018e331d36836a148dae29ea59bf09db97329bf6c10f002d7149561a
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f51198cf5a4d7dbe942bf499ab5af7cb33765a266faa7f0629c4d6f36a1e200c
[INFO] running `Command { std: "docker" "start" "-a" "f51198cf5a4d7dbe942bf499ab5af7cb33765a266faa7f0629c4d6f36a1e200c", kill_on_drop: false }`
[INFO] [stderr]     Checking cborg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]   --> src/lib.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct CborError {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 41 |     kind: ErrorKind,
[INFO] [stdout] 42 |     error: Box<dyn error::Error + Send + Sync>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CborError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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: field `error` is never read
[INFO] [stdout]   --> src/lib.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct CborError {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 41 |     kind: ErrorKind,
[INFO] [stdout] 42 |     error: Box<dyn error::Error + Send + Sync>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CborError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "f51198cf5a4d7dbe942bf499ab5af7cb33765a266faa7f0629c4d6f36a1e200c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f51198cf5a4d7dbe942bf499ab5af7cb33765a266faa7f0629c4d6f36a1e200c", kill_on_drop: false }`
[INFO] [stdout] f51198cf5a4d7dbe942bf499ab5af7cb33765a266faa7f0629c4d6f36a1e200c
