[INFO] fetching crate coroutines 0.2.0...
[INFO] testing coroutines-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate coroutines 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate coroutines 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coroutines 0.2.0
[INFO] finished tweaking crates.io crate coroutines 0.2.0
[INFO] tweaked toml for crates.io crate coroutines 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfb2dd0c13ad03af67ff210ac5ae75c3f6e260e2cfb10361052e21170dbf99b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cfb2dd0c13ad03af67ff210ac5ae75c3f6e260e2cfb10361052e21170dbf99b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfb2dd0c13ad03af67ff210ac5ae75c3f6e260e2cfb10361052e21170dbf99b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfb2dd0c13ad03af67ff210ac5ae75c3f6e260e2cfb10361052e21170dbf99b6", kill_on_drop: false }`
[INFO] [stdout] cfb2dd0c13ad03af67ff210ac5ae75c3f6e260e2cfb10361052e21170dbf99b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c71a22726d832ae48ebabed7457e0d6da7c854f67cb02d3cf1da365ed29a3542
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c71a22726d832ae48ebabed7457e0d6da7c854f67cb02d3cf1da365ed29a3542", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.4.10
[INFO] [stderr]    Compiling coroutines v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:70:29
[INFO] [stdout]    |
[INFO] [stdout] 70 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:83:29
[INFO] [stdout]    |
[INFO] [stdout] 83 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:123:40
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn join(self) -> Result<T, Box<Any + Send>> {
[INFO] [stdout]     |                                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:143:24
[INFO] [stdout]     |
[INFO] [stdout] 143 |     Done(Result<T, Box<Any + Send>>),
[INFO] [stdout]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:144:35
[INFO] [stdout]     |
[INFO] [stdout] 144 |     Pending(Promise<Result<T, Box<Any + Send>>>)
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:162:62
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let mut resolve_target: Option<Promise<Result<T, Box<Any + Send>>>> = None;
[INFO] [stdout]     |                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "c71a22726d832ae48ebabed7457e0d6da7c854f67cb02d3cf1da365ed29a3542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c71a22726d832ae48ebabed7457e0d6da7c854f67cb02d3cf1da365ed29a3542", kill_on_drop: false }`
[INFO] [stdout] c71a22726d832ae48ebabed7457e0d6da7c854f67cb02d3cf1da365ed29a3542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 200017d6599e34db89e1ba05b3e3da93466ace3e5e691eb678ff17c475e15810
[INFO] running `Command { std: "docker" "start" "-a" "200017d6599e34db89e1ba05b3e3da93466ace3e5e691eb678ff17c475e15810", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:70:29
[INFO] [stdout]    |
[INFO] [stdout] 70 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling coroutines v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:83:29
[INFO] [stdout]    |
[INFO] [stdout] 83 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:123:40
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn join(self) -> Result<T, Box<Any + Send>> {
[INFO] [stdout]     |                                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:143:24
[INFO] [stdout]     |
[INFO] [stdout] 143 |     Done(Result<T, Box<Any + Send>>),
[INFO] [stdout]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:144:35
[INFO] [stdout]     |
[INFO] [stdout] 144 |     Pending(Promise<Result<T, Box<Any + Send>>>)
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:162:62
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let mut resolve_target: Option<Promise<Result<T, Box<Any + Send>>>> = None;
[INFO] [stdout]     |                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:70:29
[INFO] [stdout]    |
[INFO] [stdout] 70 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:83:29
[INFO] [stdout]    |
[INFO] [stdout] 83 |     E: FnOnce(Result<T, Box<Any + Send>>) + Send + 'static
[INFO] [stdout]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:123:40
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn join(self) -> Result<T, Box<Any + Send>> {
[INFO] [stdout]     |                                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:143:24
[INFO] [stdout]     |
[INFO] [stdout] 143 |     Done(Result<T, Box<Any + Send>>),
[INFO] [stdout]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:144:35
[INFO] [stdout]     |
[INFO] [stdout] 144 |     Pending(Promise<Result<T, Box<Any + Send>>>)
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:162:62
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let mut resolve_target: Option<Promise<Result<T, Box<Any + Send>>>> = None;
[INFO] [stdout]     |                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.coroutines.dgj4x75q-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c" "/opt/rustwide/target/debug/deps/coroutines-016004f96788636c.3qsqpd9jj7nw5xw9.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lunblock_hook" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-c99ebba9851136ef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-190ecd0479955c2e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-10cf7eacb763a707.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-5f0069e1a0595222.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-176a753cf8833059.rlib" "/opt/rustwide/target/debug/deps/libspin-33984f5c53085809.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lunblock_hook
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `coroutines`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "200017d6599e34db89e1ba05b3e3da93466ace3e5e691eb678ff17c475e15810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "200017d6599e34db89e1ba05b3e3da93466ace3e5e691eb678ff17c475e15810", kill_on_drop: false }`
[INFO] [stdout] 200017d6599e34db89e1ba05b3e3da93466ace3e5e691eb678ff17c475e15810