[INFO] updating cached repository choochootrain/smol
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/choochootrain/smol
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/choochootrain/smol" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/choochootrain/smol"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/choochootrain/smol'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/choochootrain/smol" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/choochootrain/smol"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/choochootrain/smol'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5e97cf99eecfd4afa3db15674a202ae2d5440518
[INFO] sha for GitHub repo choochootrain/smol: 5e97cf99eecfd4afa3db15674a202ae2d5440518
[INFO] validating manifest of choochootrain/smol on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of choochootrain/smol on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing choochootrain/smol
[INFO] finished frobbing choochootrain/smol
[INFO] frobbed toml for choochootrain/smol written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/choochootrain/smol/Cargo.toml
[INFO] started frobbing choochootrain/smol
[INFO] finished frobbing choochootrain/smol
[INFO] frobbed toml for choochootrain/smol written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/choochootrain/smol/Cargo.toml
[INFO] crate choochootrain/smol already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking choochootrain/smol against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-3/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/choochootrain/smol:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d7c0c24439a20bca79c8fae58420de043b4e92862dab7f7eb9f88a17f5c7b9aa
[INFO] running `"docker" "start" "-a" "d7c0c24439a20bca79c8fae58420de043b4e92862dab7f7eb9f88a17f5c7b9aa"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking tokio v0.1.16
[INFO] [stderr]     Checking websocket v0.22.3
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking smol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/result.rs:11:58
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn from_err<D>(code: exitcode::ExitCode, error: &Error, message: D) -> SmolError
[INFO] [stderr]    |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/result.rs:11:58
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn from_err<D>(code: exitcode::ExitCode, error: &Error, message: D) -> SmolError
[INFO] [stderr]    |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Select` in tuple element 0 that must be used
[INFO] [stderr]   --> src/bin/ws.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 | /     runtime
[INFO] [stderr] 80 | |         .block_on(runner)
[INFO] [stderr] 81 | |         .map_err(|e| SmolError::from_err(exitcode::NOHOST, &e, "Runtime error"))?;
[INFO] [stderr]    | |__________________________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Select` in tuple element 0 that must be used
[INFO] [stderr]   --> src/bin/ws.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 | /     runtime
[INFO] [stderr] 80 | |         .block_on(runner)
[INFO] [stderr] 81 | |         .map_err(|e| SmolError::from_err(exitcode::NOHOST, &e, "Runtime error"))?;
[INFO] [stderr]    | |__________________________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.17s
[INFO] running `"docker" "inspect" "d7c0c24439a20bca79c8fae58420de043b4e92862dab7f7eb9f88a17f5c7b9aa"`
[INFO] running `"docker" "rm" "-f" "d7c0c24439a20bca79c8fae58420de043b4e92862dab7f7eb9f88a17f5c7b9aa"`
[INFO] [stdout] d7c0c24439a20bca79c8fae58420de043b4e92862dab7f7eb9f88a17f5c7b9aa