[INFO] fetching crate memkit-co 0.2.0-beta.1...
[INFO] testing memkit-co-0.2.0-beta.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate memkit-co 0.2.0-beta.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate memkit-co 0.2.0-beta.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate memkit-co 0.2.0-beta.1
[INFO] tweaked toml for crates.io crate memkit-co 0.2.0-beta.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate memkit-co 0.2.0-beta.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate memkit-co 0.2.0-beta.1 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memkit v0.2.0-beta.1
[INFO] [stderr]   Downloaded memkit-gpu v0.2.0-beta.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3db4b506393e4d055e09a4cc78aaae6ee45238e22f79acaf7abacc99dce8eb2c
[INFO] running `Command { std: "docker" "start" "-a" "3db4b506393e4d055e09a4cc78aaae6ee45238e22f79acaf7abacc99dce8eb2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3db4b506393e4d055e09a4cc78aaae6ee45238e22f79acaf7abacc99dce8eb2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db4b506393e4d055e09a4cc78aaae6ee45238e22f79acaf7abacc99dce8eb2c", kill_on_drop: false }`
[INFO] [stdout] 3db4b506393e4d055e09a4cc78aaae6ee45238e22f79acaf7abacc99dce8eb2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00f9386f9b8f93752d600c241c721679aab5d9fc8c71409319e26dd4046d27e8
[INFO] running `Command { std: "docker" "start" "-a" "00f9386f9b8f93752d600c241c721679aab5d9fc8c71409319e26dd4046d27e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling memkit v0.2.0-beta.1
[INFO] [stdout] error[E0433]: cannot find module or crate `libc` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/memkit-0.2.0-beta.1/src/core/huge_pages.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |             libc::mmap(
[INFO] [stdout]     |             ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `libc` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/memkit-0.2.0-beta.1/src/core/huge_pages.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 libc::PROT_READ | libc::PROT_WRITE,
[INFO] [stdout]     |                 ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `libc` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/memkit-0.2.0-beta.1/src/core/huge_pages.rs:112:35
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 libc::PROT_READ | libc::PROT_WRITE,
[INFO] [stdout]     |                                   ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `libc` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/memkit-0.2.0-beta.1/src/core/huge_pages.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 libc::MAP_PRIVATE | libc::MAP_ANONYMOUS | libc::MAP_HUGETLB,
[INFO] [stdout]     |                 ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `libc` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/memkit-0.2.0-beta.1/src/core/huge_pages.rs:113:37
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 libc::MAP_PRIVATE | libc::MAP_ANONYMOUS | libc::MAP_HUGETLB,
[INFO] [stdout]     |                                     ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `libc` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/memkit-0.2.0-beta.1/src/core/huge_pages.rs:113:59
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 libc::MAP_PRIVATE | libc::MAP_ANONYMOUS | libc::MAP_HUGETLB,
[INFO] [stdout]     |                                                           ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `libc` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/memkit-0.2.0-beta.1/src/core/huge_pages.rs:119:19
[INFO] [stdout]     |
[INFO] [stdout] 119 |         if ptr != libc::MAP_FAILED {
[INFO] [stdout]     |                   ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `memkit` (lib) due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "00f9386f9b8f93752d600c241c721679aab5d9fc8c71409319e26dd4046d27e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f9386f9b8f93752d600c241c721679aab5d9fc8c71409319e26dd4046d27e8", kill_on_drop: false }`
[INFO] [stdout] 00f9386f9b8f93752d600c241c721679aab5d9fc8c71409319e26dd4046d27e8