[INFO] updating cached repository https://github.com/mapbox/Hecate
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/mapbox/Hecate
[INFO] [stderr]  - [deleted]         (none)     -> webhook-secret
[INFO] [stderr]  * [new branch]      config-tests            -> config-tests
[INFO] [stderr]    38038ca..757571b  master                  -> master
[INFO] [stderr]  * [new branch]      you-cant-build-on-a-mac -> you-cant-build-on-a-mac
[INFO] [stderr]  * [new tag]         v0.74.1                 -> v0.74.1
[INFO] [stderr]  * [new tag]         v0.74.2                 -> v0.74.2
[INFO] [stderr]  * [new tag]         v0.74.2-dev             -> v0.74.2-dev
[INFO] [stderr]  * [new tag]         v0.74.3                 -> v0.74.3
[INFO] [stderr]  * [new tag]         v0.74.4                 -> v0.74.4
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 757571b09d4717ddc33e23c5d95e398ec7c5350b
[INFO] testing mapbox/Hecate against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapbox%2FHecate" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mapbox/Hecate on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mapbox/Hecate
[INFO] finished tweaking git repo https://github.com/mapbox/Hecate
[INFO] tweaked toml for git repo https://github.com/mapbox/Hecate written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mapbox/Hecate already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/ingalls/json-patch`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 15a328499165ca906c9433b1e0bd1c1c7e17829f64e9e164083a0f8d5409f837
[INFO] running `"docker" "start" "-a" "15a328499165ca906c9433b1e0bd1c1c7e17829f64e9e164083a0f8d5409f837"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling constant_time_eq v0.1.4
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling pdqselect v0.1.0
[INFO] [stderr]    Compiling hashbrown v0.5.0
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling protobuf v1.7.5
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.3.3
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling quick-xml v0.16.1
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling treediff v3.0.1
[INFO] [stderr]    Compiling jsonway v2.0.0
[INFO] [stderr]    Compiling crossbeam v0.7.2
[INFO] [stderr]    Compiling geojson v0.16.0
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling crypto-mac v0.5.2
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling hmac v0.5.0
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling signal-hook-registry v1.1.1
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.50
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling backtrace v0.3.38
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling resolv-conf v0.6.2
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.16
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling flate2 v1.0.12
[INFO] [stderr]    Compiling signal-hook v0.1.10
[INFO] [stderr]    Compiling json-patch v0.2.5-alpha.0 (https://github.com/ingalls/json-patch?branch=uniform_paths#8ea45a40)
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling cookie v0.12.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rstar v0.2.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/json-patch-716dfd459f9c3427/8ea45a4/src/lib.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | #![feature(uniform_paths)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr] error: Could not compile `json-patch`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "15a328499165ca906c9433b1e0bd1c1c7e17829f64e9e164083a0f8d5409f837"`
[INFO] running `"docker" "rm" "-f" "15a328499165ca906c9433b1e0bd1c1c7e17829f64e9e164083a0f8d5409f837"`
[INFO] [stdout] 15a328499165ca906c9433b1e0bd1c1c7e17829f64e9e164083a0f8d5409f837