[INFO] updating cached repository opentimestamps/foxglove
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/opentimestamps/foxglove
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/opentimestamps/foxglove" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/opentimestamps/foxglove"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/opentimestamps/foxglove'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/opentimestamps/foxglove" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/opentimestamps/foxglove"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/opentimestamps/foxglove'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84e32bec3bb4e44d6cd17075e3cdc3056a9d0fd4
[INFO] sha for GitHub repo opentimestamps/foxglove: 84e32bec3bb4e44d6cd17075e3cdc3056a9d0fd4
[INFO] validating manifest of opentimestamps/foxglove on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of opentimestamps/foxglove on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing opentimestamps/foxglove
[INFO] finished frobbing opentimestamps/foxglove
[INFO] frobbed toml for opentimestamps/foxglove written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/opentimestamps/foxglove/Cargo.toml
[INFO] started frobbing opentimestamps/foxglove
[INFO] finished frobbing opentimestamps/foxglove
[INFO] frobbed toml for opentimestamps/foxglove written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/opentimestamps/foxglove/Cargo.toml
[INFO] crate opentimestamps/foxglove already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking opentimestamps/foxglove against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-4/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/opentimestamps/foxglove:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b5cb0a40f4d3c0833b7b116129dcb1ef37a2e60a85c557b2d39da58ecae16f82
[INFO] running `"docker" "start" "-a" "b5cb0a40f4d3c0833b7b116129dcb1ef37a2e60a85c557b2d39da58ecae16f82"`
[INFO] [stderr]     Checking libc v0.2.38
[INFO] [stderr]    Compiling openssl-sys v0.9.31
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking rand v0.5.0
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking clap v2.31.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking mio v0.6.13
[INFO] [stderr]     Checking regex v0.2.10
[INFO] [stderr]     Checking tokio-io v0.1.5
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]     Checking tokio v0.1.1
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking env_logger v0.5.5
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper v0.11.22
[INFO] [stderr]     Checking opentimestamps v0.1.2
[INFO] [stderr]     Checking hyper-tls v0.1.3
[INFO] [stderr]     Checking foxglove v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 let mut requests_to_serve_cloned = self.requests_to_serve.clone();
[INFO] [stderr]    |                     ----^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 let mut requests_to_serve_cloned = self.requests_to_serve.clone();
[INFO] [stderr]    |                     ----^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.22s
[INFO] running `"docker" "inspect" "b5cb0a40f4d3c0833b7b116129dcb1ef37a2e60a85c557b2d39da58ecae16f82"`
[INFO] running `"docker" "rm" "-f" "b5cb0a40f4d3c0833b7b116129dcb1ef37a2e60a85c557b2d39da58ecae16f82"`
[INFO] [stdout] b5cb0a40f4d3c0833b7b116129dcb1ef37a2e60a85c557b2d39da58ecae16f82