[INFO] updating cached repository https://github.com/cretz/rust-qt_cef_poc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0b6055d71044f96d9a20ebc34e72f65014bbfbe2
[INFO] testing cretz/rust-qt_cef_poc against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcretz%2Frust-qt_cef_poc" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cretz/rust-qt_cef_poc on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cretz/rust-qt_cef_poc
[INFO] removed path dependency cef-sys from git repo https://github.com/cretz/rust-qt_cef_poc
[INFO] finished tweaking git repo https://github.com/cretz/rust-qt_cef_poc
[INFO] tweaked toml for git repo https://github.com/cretz/rust-qt_cef_poc written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/cretz/rust-qt_cef_poc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (cef-sys) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (cef-sys) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4e2a15d4ac196dd6253bb0efd74c8afc084438238d39ce0ad76cb77e4fba194
[INFO] running `"docker" "start" "-a" "b4e2a15d4ac196dd6253bb0efd74c8afc084438238d39ce0ad76cb77e4fba194"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: dependency (cef-sys) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling cef-sys v0.0.3
[INFO] [stderr]    Compiling cpp_utils v0.2.1
[INFO] [stderr]    Compiling embed-resource v1.3.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling term-painter v0.2.4
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling bincode v0.7.0
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr] error[E0433]: failed to resolve: could not find `old_io` in `std`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cef-sys-0.0.3/build.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::old_io::fs::PathExtensions;
[INFO] [stderr]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cef-sys-0.0.3/build.rs:30:19
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let cef_dir = Path::new(os::getenv("CEF_PATH")
[INFO] [stderr]    |                   ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cef-sys-0.0.3/build.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     match os::getenv("TARGET").unwrap().split('-').nth(2).unwrap() {
[INFO] [stderr]    |               ^^^^^^ not found in `os`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `dll_filename` in module `os`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cef-sys-0.0.3/build.rs:29:29
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let dll_file_name = os::dll_filename(dll_name);
[INFO] [stderr]    |                             ^^^^^^^^^^^^ not found in `os`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cef-sys-0.0.3/build.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let cef_dir = Path::new(os::getenv("CEF_PATH")
[INFO] [stderr]    |                                 ^^^^^^ not found in `os`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cef-sys-0.0.3/build.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(os, io, path)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0433, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `cef-sys`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b4e2a15d4ac196dd6253bb0efd74c8afc084438238d39ce0ad76cb77e4fba194"`
[INFO] running `"docker" "rm" "-f" "b4e2a15d4ac196dd6253bb0efd74c8afc084438238d39ce0ad76cb77e4fba194"`
[INFO] [stdout] b4e2a15d4ac196dd6253bb0efd74c8afc084438238d39ce0ad76cb77e4fba194