[INFO] fetching crate zeros 16.0.3...
[INFO] checking zeros-16.0.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate zeros 16.0.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate zeros 16.0.3 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 zeros 16.0.3
[INFO] finished tweaking crates.io crate zeros 16.0.3
[INFO] tweaked toml for crates.io crate zeros 16.0.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--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]      Locking 19 packages
[INFO] [stderr]       Adding foreign-types v0.3.2 (latest: v0.5.0)
[INFO] [stderr]       Adding foreign-types-shared v0.1.1 (latest: v0.3.1)
[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 }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kib v7.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 }`
[INFO] [stdout] 2bc9964dbedc6d001499ecc27aa59980a905c660b983f7f709f4cadf6b4bbc8e
[INFO] running `Command { std: "docker" "start" "-a" "2bc9964dbedc6d001499ecc27aa59980a905c660b983f7f709f4cadf6b4bbc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bc9964dbedc6d001499ecc27aa59980a905c660b983f7f709f4cadf6b4bbc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc9964dbedc6d001499ecc27aa59980a905c660b983f7f709f4cadf6b4bbc8e", kill_on_drop: false }`
[INFO] [stdout] 2bc9964dbedc6d001499ecc27aa59980a905c660b983f7f709f4cadf6b4bbc8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2c746c6e4bd6b4919ed7766e802210bdfc73793f0a80c996defafd112ef4c0af
[INFO] running `Command { std: "docker" "start" "-a" "2c746c6e4bd6b4919ed7766e802210bdfc73793f0a80c996defafd112ef4c0af", kill_on_drop: false }`
[INFO] [stderr]    Compiling openssl-src v300.2.3+3.2.1
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking kib v7.0.1
[INFO] [stderr]     Checking zeros v16.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/io/tests.rs:49:32
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let tmp = &mut data.clone();
[INFO] [stdout]    |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `[u8]` does not implement `Clone`, so calling `clone` on `&[u8]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 51s
[INFO] running `Command { std: "docker" "inspect" "2c746c6e4bd6b4919ed7766e802210bdfc73793f0a80c996defafd112ef4c0af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c746c6e4bd6b4919ed7766e802210bdfc73793f0a80c996defafd112ef4c0af", kill_on_drop: false }`
[INFO] [stdout] 2c746c6e4bd6b4919ed7766e802210bdfc73793f0a80c996defafd112ef4c0af