[INFO] fetching crate cloud-storage-signature 0.6.18...
[INFO] checking cloud-storage-signature-0.6.18 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate cloud-storage-signature 0.6.18 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cloud-storage-signature 0.6.18
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cloud-storage-signature 0.6.18
[INFO] tweaked toml for crates.io crate cloud-storage-signature 0.6.18 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cloud-storage-signature 0.6.18 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cloud-storage-signature 0.6.18 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wiremock v0.6.4
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[INFO] [stdout] 0cdd1083e7917eb5bcb37d3e8bb09d247510e24602bfbb7def1a0c899ae39d0a
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[INFO] running `Command { std: "docker" "inspect" "0cdd1083e7917eb5bcb37d3e8bb09d247510e24602bfbb7def1a0c899ae39d0a", kill_on_drop: false }`
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[INFO] [stdout] 0cdd1083e7917eb5bcb37d3e8bb09d247510e24602bfbb7def1a0c899ae39d0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c07164cee0eecc0d499f0afad35f4ca61f16dfb64164f1ccf98836cf4cf4fe7
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[INFO] [stdout] warning: struct `Error` is never constructed
[INFO] [stdout]  --> src/private/active_datetime.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Error;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Aws4Request` is never constructed
[INFO] [stdout]  --> src/private/request_type.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum RequestType {
[INFO] [stdout]   |          ----------- variant in this enum
[INFO] [stdout] 4 |     Goog4Request,
[INFO] [stdout] 5 |     Aws4Request,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RequestType` 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: variant `S3` is never constructed
[INFO] [stdout]  --> src/private/service.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Service {
[INFO] [stdout]   |          ------- variant in this enum
[INFO] [stdout] 4 |     Storage,
[INFO] [stdout] 5 |     S3,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Service` 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: variant `Aws4HmacSha256` is never constructed
[INFO] [stdout]  --> src/private/signing_algorithm.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum SigningAlgorithm {
[INFO] [stdout]   |          ---------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Aws4HmacSha256,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SigningAlgorithm` 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: struct `Error` is never constructed
[INFO] [stdout]  --> src/private/active_datetime.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Error;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "1c07164cee0eecc0d499f0afad35f4ca61f16dfb64164f1ccf98836cf4cf4fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c07164cee0eecc0d499f0afad35f4ca61f16dfb64164f1ccf98836cf4cf4fe7", kill_on_drop: false }`
[INFO] [stdout] 1c07164cee0eecc0d499f0afad35f4ca61f16dfb64164f1ccf98836cf4cf4fe7