[INFO] updating cached repository samrg472/tokio_shutdown_error
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/samrg472/tokio_shutdown_error
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/samrg472/tokio_shutdown_error" "work/ex/beta-1.38-1/sources/1.37.0/gh/samrg472/tokio_shutdown_error"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/samrg472/tokio_shutdown_error'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/samrg472/tokio_shutdown_error" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/samrg472/tokio_shutdown_error"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/samrg472/tokio_shutdown_error'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3e03cf87cafe1bc108f30f82ddb34d2b20767cdf
[INFO] sha for GitHub repo samrg472/tokio_shutdown_error: 3e03cf87cafe1bc108f30f82ddb34d2b20767cdf
[INFO] validating manifest of samrg472/tokio_shutdown_error on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of samrg472/tokio_shutdown_error on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing samrg472/tokio_shutdown_error
[INFO] finished frobbing samrg472/tokio_shutdown_error
[INFO] frobbed toml for samrg472/tokio_shutdown_error written to work/ex/beta-1.38-1/sources/1.37.0/gh/samrg472/tokio_shutdown_error/Cargo.toml
[INFO] started frobbing samrg472/tokio_shutdown_error
[INFO] finished frobbing samrg472/tokio_shutdown_error
[INFO] frobbed toml for samrg472/tokio_shutdown_error written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/samrg472/tokio_shutdown_error/Cargo.toml
[INFO] crate samrg472/tokio_shutdown_error already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/samrg472/tokio_shutdown_error/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing samrg472/tokio_shutdown_error against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/samrg472/tokio_shutdown_error:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 00ed66d93f46a2e4791bb580fe9c84a97c445e9c8cd6ef4d475a8a0ec123c530
[INFO] running `"docker" "start" "-a" "00ed66d93f46a2e4791bb580fe9c84a97c445e9c8cd6ef4d475a8a0ec123c530"`
[INFO] [stderr]    Compiling tokio-signal v0.2.7
[INFO] [stderr]    Compiling tokio_shutdown_error v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `tokio::prelude::stream::MapErr` in tuple element 1 that must be used
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     stream.into_future().wait().ok().unwrap();
[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 4.56s
[INFO] running `"docker" "inspect" "00ed66d93f46a2e4791bb580fe9c84a97c445e9c8cd6ef4d475a8a0ec123c530"`
[INFO] running `"docker" "rm" "-f" "00ed66d93f46a2e4791bb580fe9c84a97c445e9c8cd6ef4d475a8a0ec123c530"`
[INFO] [stdout] 00ed66d93f46a2e4791bb580fe9c84a97c445e9c8cd6ef4d475a8a0ec123c530
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/samrg472/tokio_shutdown_error:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 18f32c8f252208b2a33925d5232181866a5ac4ced87436c24e9268f2bc770949
[INFO] running `"docker" "start" "-a" "18f32c8f252208b2a33925d5232181866a5ac4ced87436c24e9268f2bc770949"`
[INFO] [stderr]    Compiling tokio_shutdown_error v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `tokio::prelude::stream::MapErr` in tuple element 1 that must be used
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     stream.into_future().wait().ok().unwrap();
[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 1.57s
[INFO] running `"docker" "inspect" "18f32c8f252208b2a33925d5232181866a5ac4ced87436c24e9268f2bc770949"`
[INFO] running `"docker" "rm" "-f" "18f32c8f252208b2a33925d5232181866a5ac4ced87436c24e9268f2bc770949"`
[INFO] [stdout] 18f32c8f252208b2a33925d5232181866a5ac4ced87436c24e9268f2bc770949
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/samrg472/tokio_shutdown_error:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 7e4467bfdf6077049792d229289d3c74673a78494889315336238e49a852219e
[INFO] running `"docker" "start" "-a" "7e4467bfdf6077049792d229289d3c74673a78494889315336238e49a852219e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tokio_shutdown_error-286ea9f6b7da86c5
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7e4467bfdf6077049792d229289d3c74673a78494889315336238e49a852219e"`
[INFO] running `"docker" "rm" "-f" "7e4467bfdf6077049792d229289d3c74673a78494889315336238e49a852219e"`
[INFO] [stdout] 7e4467bfdf6077049792d229289d3c74673a78494889315336238e49a852219e