[INFO] fetching crate dsc 0.1.3...
[INFO] checking dsc-0.1.3 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate dsc 0.1.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate dsc 0.1.3 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dsc 0.1.3
[INFO] finished tweaking crates.io crate dsc 0.1.3
[INFO] tweaked toml for crates.io crate dsc 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate dsc 0.1.3 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.61
[INFO] [stderr]   Downloaded term_size v0.3.2
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[INFO] [stderr]   Downloaded xxhash-rust v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd4f6d04f1174f504765a8f8f958c630fbe935d6ce74f4fc19aade7dd4f7ee86
[INFO] running `Command { std: "docker" "start" "-a" "cd4f6d04f1174f504765a8f8f958c630fbe935d6ce74f4fc19aade7dd4f7ee86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd4f6d04f1174f504765a8f8f958c630fbe935d6ce74f4fc19aade7dd4f7ee86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd4f6d04f1174f504765a8f8f958c630fbe935d6ce74f4fc19aade7dd4f7ee86", kill_on_drop: false }`
[INFO] [stdout] cd4f6d04f1174f504765a8f8f958c630fbe935d6ce74f4fc19aade7dd4f7ee86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eab0bdea9a8c350bf3345da67b3979edd4a50149a980165f65314cd3f3cdd5e5
[INFO] running `Command { std: "docker" "start" "-a" "eab0bdea9a8c350bf3345da67b3979edd4a50149a980165f65314cd3f3cdd5e5", kill_on_drop: false }`
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[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking scopeguard v1.1.0
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[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
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[INFO] [stderr]     Checking termcolor v1.1.2
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[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
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[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking console v0.14.0
[INFO] [stderr]     Checking env_logger v0.7.1
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[INFO] [stderr]     Checking bstr v0.2.14
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[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]     Checking dsc v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `total_duplicates_found` is never read
[INFO] [stdout]   --> src/duplicate_detection/messages.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct AnalysisStatistics {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 41 |     pub total_completed_investigations: u64,
[INFO] [stdout] 42 |     pub total_duplicates_found: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AnalysisStatistics` 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: field `initial_block_size` is never read
[INFO] [stdout]   --> src/options.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Options {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub initial_block_size: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Options` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `total_duplicates_found` is never read
[INFO] [stdout]   --> src/duplicate_detection/messages.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct AnalysisStatistics {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 41 |     pub total_completed_investigations: u64,
[INFO] [stdout] 42 |     pub total_duplicates_found: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AnalysisStatistics` 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: field `initial_block_size` is never read
[INFO] [stdout]   --> src/options.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Options {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub initial_block_size: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Options` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.63s
[INFO] running `Command { std: "docker" "inspect" "eab0bdea9a8c350bf3345da67b3979edd4a50149a980165f65314cd3f3cdd5e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eab0bdea9a8c350bf3345da67b3979edd4a50149a980165f65314cd3f3cdd5e5", kill_on_drop: false }`
[INFO] [stdout] eab0bdea9a8c350bf3345da67b3979edd4a50149a980165f65314cd3f3cdd5e5