[INFO] fetching crate rustic_core 0.9.0...
[INFO] checking rustic_core-0.9.0 against master#217cb73577ed6f30a2005dd75bab01d23ec4cd60 for pr-148939
[INFO] extracting crate rustic_core 0.9.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rustic_core 0.9.0
[INFO] finished tweaking crates.io crate rustic_core 0.9.0
[INFO] tweaked toml for crates.io crate rustic_core 0.9.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustic_core 0.9.0 on toolchain 217cb73577ed6f30a2005dd75bab01d23ec4cd60
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustic_core 0.9.0 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" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded runtime-format v0.1.3
[INFO] [stderr]   Downloaded ecow v0.2.6
[INFO] [stderr]   Downloaded rustic_cdc v0.3.1
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[INFO] [stderr]   Downloaded rustic_testing v0.3.3
[INFO] [stderr]   Downloaded rustdoc-json v0.9.7
[INFO] [stderr]   Downloaded conflate_derive v0.2.0
[INFO] [stderr]   Downloaded quick_cache v0.6.18
[INFO] [stderr]   Downloaded cargo_metadata v0.21.0
[INFO] [stderr]   Downloaded derive_setters v0.1.8
[INFO] [stderr]   Downloaded cargo-manifest v0.19.1
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[INFO] [stderr]   Downloaded binrw_derive v0.15.0
[INFO] [stderr]   Downloaded cached v0.56.0
[INFO] [stderr]   Downloaded rustic_core v0.8.0
[INFO] [stderr]   Downloaded rustic_backend v0.5.3
[INFO] [stderr]   Downloaded conflate v0.3.3
[INFO] [stderr]   Downloaded cached_proc_macro v0.25.0
[INFO] [stderr]   Downloaded aes256ctr_poly1305aes v0.2.1
[INFO] [stderr]   Downloaded rustup-toolchain v0.1.10
[INFO] [stderr]   Downloaded binrw v0.15.0
[INFO] [stderr]   Downloaded opendal v0.53.3
[INFO] [stderr]   Downloaded pariter v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bbd8b10ffb7ddd6f349cf5316436edb54c488dd2fa08e8b742dbbb97ddd8f65
[INFO] running `Command { std: "docker" "start" "-a" "9bbd8b10ffb7ddd6f349cf5316436edb54c488dd2fa08e8b742dbbb97ddd8f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bbd8b10ffb7ddd6f349cf5316436edb54c488dd2fa08e8b742dbbb97ddd8f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bbd8b10ffb7ddd6f349cf5316436edb54c488dd2fa08e8b742dbbb97ddd8f65", kill_on_drop: false }`
[INFO] [stdout] 9bbd8b10ffb7ddd6f349cf5316436edb54c488dd2fa08e8b742dbbb97ddd8f65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67051589f334988d10a218606f638a28b10c4e6159ea55d91189abe7c9b20d30
[INFO] running `Command { std: "docker" "start" "-a" "67051589f334988d10a218606f638a28b10c4e6159ea55d91189abe7c9b20d30", kill_on_drop: false }`
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[INFO] [stderr]    Compiling darling_macro v0.20.11
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[INFO] [stderr]     Checking derive_more v2.0.1
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[INFO] [stderr]     Checking icu_collections v2.1.1
[INFO] [stderr]    Compiling serde_with_macros v3.15.1
[INFO] [stderr]    Compiling enumset_derive v0.14.0
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]     Checking icu_locale_core v2.1.1
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[INFO] [stderr]    Compiling derive_setters v0.1.8
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[INFO] [stderr]     Checking rustic_core v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking openssh-sftp-client-lowlevel v0.7.2
[INFO] [stderr]     Checking toml v0.8.23
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[INFO] [stderr]     Checking openssh-sftp-client v0.15.3
[INFO] [stderr]     Checking cargo-util-schemas v0.8.1
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[INFO] [stderr]     Checking hyper-util v0.1.17
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[INFO] [stderr]     Checking cargo_metadata v0.21.0
[INFO] [stderr]     Checking reqsign v0.16.5
[INFO] [stdout] warning: value assigned to `chars` is never read
[INFO] [stdout]   --> src/backend/node.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         chars: std::str::Chars<'a>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `-W unused-assignments` implied by `-W unused`
[INFO] [stdout]    = help: to override `-W unused` add `#[allow(unused_assignments)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `file_name` is never read
[INFO] [stdout]   --> src/backend/node.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         file_name: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `unicode` is never read
[INFO] [stdout]   --> src/backend/node.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         unicode: u32,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `chars` is never read
[INFO] [stdout]   --> src/backend/node.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         chars: std::str::Chars<'a>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `chars` is never read
[INFO] [stdout]   --> src/backend/node.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         chars: std::str::Chars<'a>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustdoc-json v0.9.7
[INFO] [stderr]     Checking rustic_testing v0.3.3
[INFO] [stderr]     Checking opendal v0.53.3
[INFO] [stderr]     Checking rustic_backend v0.5.3
[INFO] [stdout] warning: value assigned to `chars` is never read
[INFO] [stdout]   --> src/backend/node.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         chars: std::str::Chars<'a>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `-W unused-assignments` implied by `-W unused`
[INFO] [stdout]    = help: to override `-W unused` add `#[allow(unused_assignments)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `file_name` is never read
[INFO] [stdout]   --> src/backend/node.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         file_name: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `unicode` is never read
[INFO] [stdout]   --> src/backend/node.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         unicode: u32,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `chars` is never read
[INFO] [stdout]   --> src/backend/node.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         chars: std::str::Chars<'a>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `chars` is never read
[INFO] [stdout]   --> src/backend/node.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         chars: std::str::Chars<'a>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint-dig v0.8.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "67051589f334988d10a218606f638a28b10c4e6159ea55d91189abe7c9b20d30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67051589f334988d10a218606f638a28b10c4e6159ea55d91189abe7c9b20d30", kill_on_drop: false }`
[INFO] [stdout] 67051589f334988d10a218606f638a28b10c4e6159ea55d91189abe7c9b20d30