[INFO] fetching crate async-acme 0.6.0...
[INFO] checking async-acme-0.6.0 against try#2c4e58eac5a232e49065e517c1cf50b2715ccf85 for pr-140283
[INFO] extracting crate async-acme 0.6.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate async-acme 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate async-acme 0.6.0
[INFO] tweaked toml for crates.io crate async-acme 0.6.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-acme 0.6.0 on toolchain 2c4e58eac5a232e49065e517c1cf50b2715ccf85
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate async-acme 0.6.0 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" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generic-async-http-client v0.6.2
[INFO] [stderr]   Downloaded futures-rustls v0.26.0
[INFO] [stderr]   Downloaded rustls v0.23.21
[INFO] [stderr]   Downloaded aws-lc-rs v1.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b77b99658148b690390074b9f6c6fe0c183999768bc4f4a85dbcfed23521f554
[INFO] running `Command { std: "docker" "start" "-a" "b77b99658148b690390074b9f6c6fe0c183999768bc4f4a85dbcfed23521f554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b77b99658148b690390074b9f6c6fe0c183999768bc4f4a85dbcfed23521f554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77b99658148b690390074b9f6c6fe0c183999768bc4f4a85dbcfed23521f554", kill_on_drop: false }`
[INFO] [stdout] b77b99658148b690390074b9f6c6fe0c183999768bc4f4a85dbcfed23521f554
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7ca81c7cff95537c9bfc4a920c737595f06fa2e9d69fe8a4ccb3c3c70076b3e
[INFO] running `Command { std: "docker" "start" "-a" "a7ca81c7cff95537c9bfc4a920c737595f06fa2e9d69fe8a4ccb3c3c70076b3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
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[INFO] [stderr]    Compiling synstructure v0.13.1
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[INFO] [stderr]    Compiling tokio-macros v2.5.0
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[INFO] [stderr]    Compiling asn1-rs-impl v0.2.0
[INFO] [stderr]    Compiling asn1-rs-derive v0.5.1
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[INFO] [stderr]     Checking async-acme v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `CertBuilder` and `gen_acme_cert`
[INFO] [stdout]   --> src/crypto/mod.rs:45:23
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub use self::dummy::{gen_acme_cert, sha256, sha256_hasher, CertBuilder, EcdsaP256SHA256KeyPair};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hyper v1.5.2
[INFO] [stderr]     Checking hyper-util v0.1.10
[INFO] [stdout] warning: unused imports: `CertBuilder` and `gen_acme_cert`
[INFO] [stdout]   --> src/crypto/mod.rs:45:23
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub use self::dummy::{gen_acme_cert, sha256, sha256_hasher, CertBuilder, EcdsaP256SHA256KeyPair};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.92s
[INFO] running `Command { std: "docker" "inspect" "a7ca81c7cff95537c9bfc4a920c737595f06fa2e9d69fe8a4ccb3c3c70076b3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ca81c7cff95537c9bfc4a920c737595f06fa2e9d69fe8a4ccb3c3c70076b3e", kill_on_drop: false }`
[INFO] [stdout] a7ca81c7cff95537c9bfc4a920c737595f06fa2e9d69fe8a4ccb3c3c70076b3e