[INFO] crate coroutines 0.2.0 is already in cache
[INFO] extracting crate coroutines 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/coroutines/0.2.0
[INFO] extracting crate coroutines 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/coroutines/0.2.0
[INFO] validating manifest of coroutines-0.2.0 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 coroutines-0.2.0 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 coroutines-0.2.0
[INFO] finished frobbing coroutines-0.2.0
[INFO] frobbed toml for coroutines-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/coroutines/0.2.0/Cargo.toml
[INFO] started frobbing coroutines-0.2.0
[INFO] finished frobbing coroutines-0.2.0
[INFO] frobbed toml for coroutines-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/coroutines/0.2.0/Cargo.toml
[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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing coroutines-0.2.0 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/coroutines/0.2.0:/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] 4e189eed0c218feee5c04a1ceeac659765ebf583f98cd43efc9f18d773aa536c
[INFO] running `"docker" "start" "-a" "4e189eed0c218feee5c04a1ceeac659765ebf583f98cd43efc9f18d773aa536c"`
[INFO] [stderr]    Compiling coroutines v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[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/lib.rs:70:29
[INFO] [stderr]    |
[INFO] [stderr] 70 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:83:29
[INFO] [stderr]    |
[INFO] [stderr] 83 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:123:40
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn join(self) -> Result<T, Box<Any + Send>> {
[INFO] [stderr]     |                                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:143:24
[INFO] [stderr]     |
[INFO] [stderr] 143 |     Done(Result<T, Box<Any + Send>>),
[INFO] [stderr]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:144:35
[INFO] [stderr]     |
[INFO] [stderr] 144 |     Pending(Promise<Result<T, Box<Any + Send>>>)
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:162:62
[INFO] [stderr]     |
[INFO] [stderr] 162 |         let mut resolve_target: Option<Promise<Result<T, Box<Any + Send>>>> = None;
[INFO] [stderr]     |                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `"docker" "inspect" "4e189eed0c218feee5c04a1ceeac659765ebf583f98cd43efc9f18d773aa536c"`
[INFO] running `"docker" "rm" "-f" "4e189eed0c218feee5c04a1ceeac659765ebf583f98cd43efc9f18d773aa536c"`
[INFO] [stdout] 4e189eed0c218feee5c04a1ceeac659765ebf583f98cd43efc9f18d773aa536c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/coroutines/0.2.0:/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] f4ef3c211f6bcfc15b1dd2a1d078ee9578865bf78917f86192e23a4e0576f8bf
[INFO] running `"docker" "start" "-a" "f4ef3c211f6bcfc15b1dd2a1d078ee9578865bf78917f86192e23a4e0576f8bf"`
[INFO] [stderr]    Compiling coroutines v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[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/lib.rs:70:29
[INFO] [stderr]    |
[INFO] [stderr] 70 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:83:29
[INFO] [stderr]    |
[INFO] [stderr] 83 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:123:40
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn join(self) -> Result<T, Box<Any + Send>> {
[INFO] [stderr]     |                                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:143:24
[INFO] [stderr]     |
[INFO] [stderr] 143 |     Done(Result<T, Box<Any + Send>>),
[INFO] [stderr]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:144:35
[INFO] [stderr]     |
[INFO] [stderr] 144 |     Pending(Promise<Result<T, Box<Any + Send>>>)
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:162:62
[INFO] [stderr]     |
[INFO] [stderr] 162 |         let mut resolve_target: Option<Promise<Result<T, Box<Any + Send>>>> = None;
[INFO] [stderr]     |                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.coroutines.cz0794mo-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868" "/opt/crater/target/debug/deps/coroutines-e552e482ff851868.4e3ylzl24vhr4tam.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lunblock_hook" "-Wl,-Bstatic" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-0127509d2e54a846.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-2651f8b4eed9e86e.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-c729851ce6e3efb2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-e8235f0d435d4737.rlib" "/opt/crater/target/debug/deps/libspin-416c2deac55743c8.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lunblock_hook
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `coroutines`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f4ef3c211f6bcfc15b1dd2a1d078ee9578865bf78917f86192e23a4e0576f8bf"`
[INFO] running `"docker" "rm" "-f" "f4ef3c211f6bcfc15b1dd2a1d078ee9578865bf78917f86192e23a4e0576f8bf"`
[INFO] [stdout] f4ef3c211f6bcfc15b1dd2a1d078ee9578865bf78917f86192e23a4e0576f8bf