[INFO] updating cached repository https://github.com/jeremyBanks/0dmg
[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] 061ccdfce4525c9b3ebb97f86f2c5e56a2a7e289
[INFO] checking jeremyBanks/0dmg against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeremyBanks%2F0dmg" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeremyBanks/0dmg on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jeremyBanks/0dmg
[INFO] disabled cargo feature 'publish-lockfile' from git repo https://github.com/jeremyBanks/0dmg
[INFO] removed path dependency zerodmg-codes from git repo https://github.com/jeremyBanks/0dmg
[INFO] removed path dependency zerodmg-emulator from git repo https://github.com/jeremyBanks/0dmg
[INFO] removed path dependency zerodmg-utils from git repo https://github.com/jeremyBanks/0dmg
[INFO] finished tweaking git repo https://github.com/jeremyBanks/0dmg
[INFO] tweaked toml for git repo https://github.com/jeremyBanks/0dmg written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/jeremyBanks/0dmg already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-13/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[INFO] the lockfile is outdated, regenerating it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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] 85166991f1b67992b092034cb61eaf32a48063c4e5903dbc84be3d75a3bb48c0
[INFO] running `"docker" "start" "-a" "85166991f1b67992b092034cb61eaf32a48063c4e5903dbc84be3d75a3bb48c0"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking want v0.0.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling derive_more v0.11.0
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking zerodmg-utils v0.1.9
[INFO] [stderr]     Checking zerodmg-codes v0.1.9
[INFO] [stderr] error[E0635]: unknown feature `rust_2018_idioms`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/zerodmg-codes-0.1.9/src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(rust_2018_idioms)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `zerodmg-codes`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "85166991f1b67992b092034cb61eaf32a48063c4e5903dbc84be3d75a3bb48c0"`
[INFO] running `"docker" "rm" "-f" "85166991f1b67992b092034cb61eaf32a48063c4e5903dbc84be3d75a3bb48c0"`
[INFO] [stdout] 85166991f1b67992b092034cb61eaf32a48063c4e5903dbc84be3d75a3bb48c0