[INFO] crate treap 0.0.3 is already in cache
[INFO] checking treap-0.0.3 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate treap 0.0.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate treap 0.0.3 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate treap 0.0.3
[INFO] finished tweaking crates.io crate treap 0.0.3
[INFO] tweaked toml for crates.io crate treap 0.0.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb92eee98dd4256b7870efe4f29e1f47cf1fcd8f30de0ca1dba76dbe9544060b
[INFO] running `"docker" "start" "-a" "cb92eee98dd4256b7870efe4f29e1f47cf1fcd8f30de0ca1dba76dbe9544060b"`
[INFO] [stderr]     Checking log v0.2.5
[INFO] [stderr] error[E0425]: cannot find function `at_exit` in module `rt`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/log-0.2.5/src/lib.rs:535:9
[INFO] [stderr]     |
[INFO] [stderr] 535 |     rt::at_exit(|| {
[INFO] [stderr]     |         ^^^^^^^ not found in `rt`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rt': this public module should not exist and is highly likely to disappear
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/log-0.2.5/src/lib.rs:153:5
[INFO] [stderr]     |
[INFO] [stderr] 153 | use std::rt;
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(rt)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `log`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cb92eee98dd4256b7870efe4f29e1f47cf1fcd8f30de0ca1dba76dbe9544060b"`
[INFO] running `"docker" "rm" "-f" "cb92eee98dd4256b7870efe4f29e1f47cf1fcd8f30de0ca1dba76dbe9544060b"`
[INFO] [stdout] cb92eee98dd4256b7870efe4f29e1f47cf1fcd8f30de0ca1dba76dbe9544060b