[INFO] crate rtfm-syntax 0.3.4 is already in cache
[INFO] checking rtfm-syntax-0.3.4 against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] extracting crate rtfm-syntax 0.3.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rtfm-syntax 0.3.4 on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rtfm-syntax 0.3.4
[INFO] finished tweaking crates.io crate rtfm-syntax 0.3.4
[INFO] tweaked toml for crates.io crate rtfm-syntax 0.3.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "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] 4de5b246f2f3574719840733e90cbbb03a6ca3a53ed776e0fb3900cca4790153
[INFO] running `"docker" "start" "-a" "4de5b246f2f3574719840733e90cbbb03a6ca3a53ed776e0fb3900cca4790153"`
[INFO] [stderr]     Checking syn v0.14.9
[INFO] [stderr]     Checking rtfm-syntax v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr] error: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(try_from)]
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![deny(warnings)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   = note: `#[deny(stable_features)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(try_from)]
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![deny(warnings)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   = note: `#[deny(stable_features)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `rtfm-syntax`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rtfm-syntax`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4de5b246f2f3574719840733e90cbbb03a6ca3a53ed776e0fb3900cca4790153"`
[INFO] running `"docker" "rm" "-f" "4de5b246f2f3574719840733e90cbbb03a6ca3a53ed776e0fb3900cca4790153"`
[INFO] [stdout] 4de5b246f2f3574719840733e90cbbb03a6ca3a53ed776e0fb3900cca4790153