[INFO] fetching crate async-acme 0.4.0...
[INFO] checking async-acme-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate async-acme 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate async-acme 0.4.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-acme 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate async-acme 0.4.0
[INFO] tweaked toml for crates.io crate async-acme 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate async-acme 0.4.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "b3140c0137a438170775db317da6060d187f4e2428a22f65a3ff331fc1bfe197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3140c0137a438170775db317da6060d187f4e2428a22f65a3ff331fc1bfe197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3140c0137a438170775db317da6060d187f4e2428a22f65a3ff331fc1bfe197", kill_on_drop: false }`
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[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b1dd0c7abfacf056b1dfccd039cfe93b4e8441c62b977bbb7f044282f74c817
[INFO] running `Command { std: "docker" "start" "-a" "9b1dd0c7abfacf056b1dfccd039cfe93b4e8441c62b977bbb7f044282f74c817", kill_on_drop: false }`
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[INFO] [stderr]     Checking async-acme v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/acme/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CertBuilder`, `gen_acme_cert`
[INFO] [stdout]   --> src/crypto/mod.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub use self::dummy::{gen_acme_cert, sha256, sha256_hasher, CertBuilder, EcdsaP256SHA256KeyPair};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/acme/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CertBuilder`, `gen_acme_cert`
[INFO] [stdout]   --> src/crypto/mod.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub use self::dummy::{gen_acme_cert, sha256, sha256_hasher, CertBuilder, EcdsaP256SHA256KeyPair};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.30s
[INFO] running `Command { std: "docker" "inspect" "9b1dd0c7abfacf056b1dfccd039cfe93b4e8441c62b977bbb7f044282f74c817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1dd0c7abfacf056b1dfccd039cfe93b4e8441c62b977bbb7f044282f74c817", kill_on_drop: false }`
[INFO] [stdout] 9b1dd0c7abfacf056b1dfccd039cfe93b4e8441c62b977bbb7f044282f74c817