[INFO] fetching crate rdedup 3.2.1...
[INFO] checking rdedup-3.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rdedup 3.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rdedup 3.2.1 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 rdedup 3.2.1
[INFO] finished tweaking crates.io crate rdedup 3.2.1
[INFO] tweaked toml for crates.io crate rdedup 3.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate rdedup 3.2.1 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 slog-async v2.7.0
[INFO] [stderr]   Downloaded dangerous_option v0.2.0
[INFO] [stderr]   Downloaded zstd-safe v4.1.1+zstd.1.5.0
[INFO] [stderr]   Downloaded cpufeatures v0.1.5
[INFO] [stderr]   Downloaded zstd v0.9.0+zstd.1.5.0
[INFO] [stderr]   Downloaded rdedup-cdc v0.1.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.17
[INFO] [stderr]   Downloaded signature v1.3.1
[INFO] [stderr]   Downloaded blake2 v0.9.1
[INFO] [stderr]   Downloaded bytevec v0.2.0
[INFO] [stderr]   Downloaded rust-lzma v0.5.1
[INFO] [stderr]   Downloaded libc v0.2.98
[INFO] [stderr]   Downloaded zstd-sys v1.6.1+zstd.1.5.0
[INFO] [stderr]   Downloaded sha2 v0.9.5
[INFO] [stderr]   Downloaded serde_json v1.0.66
[INFO] [stderr]   Downloaded jobserver v0.1.23
[INFO] [stderr]   Downloaded rpassword v4.0.5
[INFO] [stderr]   Downloaded rdedup-lib v3.2.0
[INFO] [stderr]   Downloaded slog-term v2.8.0
[INFO] [stderr]   Downloaded sgdata v0.2.0
[INFO] [stderr]   Downloaded slog-perf v0.2.0
[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] 796ffa6aea7ba538282d809d56854567287ac6a0ac173eff34b3bd2787cce782
[INFO] running `Command { std: "docker" "start" "-a" "796ffa6aea7ba538282d809d56854567287ac6a0ac173eff34b3bd2787cce782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "796ffa6aea7ba538282d809d56854567287ac6a0ac173eff34b3bd2787cce782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "796ffa6aea7ba538282d809d56854567287ac6a0ac173eff34b3bd2787cce782", kill_on_drop: false }`
[INFO] [stdout] 796ffa6aea7ba538282d809d56854567287ac6a0ac173eff34b3bd2787cce782
[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] 9c03eb1c89f5a90d8002966a248ed16c0c2192e9cfbf9d5a10f0369def7868dd
[INFO] running `Command { std: "docker" "start" "-a" "9c03eb1c89f5a90d8002966a248ed16c0c2192e9cfbf9d5a10f0369def7868dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling zstd-safe v4.1.1+zstd.1.5.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling rust-lzma v0.5.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking signature v1.3.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking ed25519 v1.2.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]    Compiling slog-async v2.7.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking sgdata v0.2.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking slog-perf v0.2.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking os_str_bytes v3.1.0
[INFO] [stderr]     Checking dangerous_option v0.2.0
[INFO] [stderr]     Checking rdedup-cdc v0.1.0
[INFO] [stderr]     Checking bytevec v0.2.0
[INFO] [stderr]    Compiling jobserver v0.1.23
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking rpassword v4.0.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling zstd-sys v1.6.1+zstd.1.5.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling libsodium-sys v0.2.7
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking blake2 v0.9.1
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]     Checking clap v3.0.0-beta.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking slog-term v2.8.0
[INFO] [stderr]     Checking zstd v0.9.0+zstd.1.5.0
[INFO] [stderr]     Checking sodiumoxide v0.2.7
[INFO] [stderr]     Checking rdedup-lib v3.2.0
[INFO] [stderr]     Checking rdedup v3.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `debug_level` is never read
[INFO] [stdout]    --> src/bin.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 145 | struct Options {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] 146 |     url: Url,
[INFO] [stdout] 147 |     debug_level: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Options` has a derived impl for the trait `Clone`, 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: field `debug_level` is never read
[INFO] [stdout]    --> src/bin.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 145 | struct Options {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] 146 |     url: Url,
[INFO] [stdout] 147 |     debug_level: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Options` has a derived impl for the trait `Clone`, 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.60s
[INFO] running `Command { std: "docker" "inspect" "9c03eb1c89f5a90d8002966a248ed16c0c2192e9cfbf9d5a10f0369def7868dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c03eb1c89f5a90d8002966a248ed16c0c2192e9cfbf9d5a10f0369def7868dd", kill_on_drop: false }`
[INFO] [stdout] 9c03eb1c89f5a90d8002966a248ed16c0c2192e9cfbf9d5a10f0369def7868dd