[INFO] updating cached repository project-fifo/fifo-tools
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/project-fifo/fifo-tools
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/project-fifo/fifo-tools" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/project-fifo/fifo-tools"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/project-fifo/fifo-tools'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/project-fifo/fifo-tools" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/project-fifo/fifo-tools"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/project-fifo/fifo-tools'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] db748313693c4c847ab9383aa4413db9596e03cf
[INFO] sha for GitHub repo project-fifo/fifo-tools: db748313693c4c847ab9383aa4413db9596e03cf
[INFO] validating manifest of project-fifo/fifo-tools on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of project-fifo/fifo-tools on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing project-fifo/fifo-tools
[INFO] finished frobbing project-fifo/fifo-tools
[INFO] frobbed toml for project-fifo/fifo-tools written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/project-fifo/fifo-tools/Cargo.toml
[INFO] started frobbing project-fifo/fifo-tools
[INFO] finished frobbing project-fifo/fifo-tools
[INFO] frobbed toml for project-fifo/fifo-tools written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/project-fifo/fifo-tools/Cargo.toml
[INFO] crate project-fifo/fifo-tools already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/project-fifo/fifo-tools/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking project-fifo/fifo-tools against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-0/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/project-fifo/fifo-tools:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f9741cfb80006de56f50ae920e9c30c318147d8639ce8904ad0bb699a1b3289a
[INFO] running `"docker" "start" "-a" "f9741cfb80006de56f50ae920e9c30c318147d8639ce8904ad0bb699a1b3289a"`
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking clap v2.16.4
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking prettytable-rs v0.6.7
[INFO] [stderr]     Checking fifo v0.10.0 (/opt/crater/workdir)
[INFO] [stderr] error: `RustcEncodable` is unstable
[INFO] [stderr]    --> src/cli/snapshots.rs:108:10
[INFO] [stderr]     |
[INFO] [stderr] 108 | #[derive(RustcEncodable)]
[INFO] [stderr]     |          ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(crater_run)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: `RustcEncodable` is unstable
[INFO] [stderr]    --> src/cli/backups.rs:146:10
[INFO] [stderr]     |
[INFO] [stderr] 146 | #[derive(RustcEncodable)]
[INFO] [stderr]     |          ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: `RustcEncodable` is unstable
[INFO] [stderr]   --> src/cmd/mod.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[derive(RustcEncodable)]
[INFO] [stderr]    |          ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fmt/mod.rs:15:18
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub get: Box<Fn(&Value) -> String>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Value) -> String`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: `RustcEncodable` is unstable
[INFO] [stderr]    --> src/cli/snapshots.rs:108:10
[INFO] [stderr]     |
[INFO] [stderr] 108 | #[derive(RustcEncodable)]
[INFO] [stderr]     |          ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(crater_run)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: `RustcEncodable` is unstable
[INFO] [stderr]    --> src/cli/backups.rs:146:10
[INFO] [stderr]     |
[INFO] [stderr] 146 | #[derive(RustcEncodable)]
[INFO] [stderr]     |          ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: `RustcEncodable` is unstable
[INFO] [stderr]   --> src/cmd/mod.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[derive(RustcEncodable)]
[INFO] [stderr]    |          ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fmt/mod.rs:15:18
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub get: Box<Fn(&Value) -> String>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Value) -> String`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `fifo`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `fifo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f9741cfb80006de56f50ae920e9c30c318147d8639ce8904ad0bb699a1b3289a"`
[INFO] running `"docker" "rm" "-f" "f9741cfb80006de56f50ae920e9c30c318147d8639ce8904ad0bb699a1b3289a"`
[INFO] [stdout] f9741cfb80006de56f50ae920e9c30c318147d8639ce8904ad0bb699a1b3289a