[INFO] fetching crate union 0.1.7...
[INFO] testing union-0.1.7 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate union 0.1.7 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate union 0.1.7
[INFO] finished tweaking crates.io crate union 0.1.7
[INFO] tweaked toml for crates.io crate union 0.1.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate union 0.1.7 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 183 packages to highest compatible versions
[INFO] [stderr]       Adding futures-timer v1.0.3 (available: v3.0.4)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.3)
[INFO] [stderr]       Adding reqwest v0.10.10 (available: v0.13.5)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.53.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-tls v0.3.1
[INFO] [stderr]   Downloaded hyper-tls v0.4.3
[INFO] [stderr]   Downloaded union_export v0.1.3
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.7
[INFO] [stderr]   Downloaded http-body v0.3.1
[INFO] [stderr]   Downloaded union_impl v0.1.3
[INFO] [stderr]   Downloaded tokio-util v0.3.1
[INFO] [stderr]   Downloaded httpdate v0.3.2
[INFO] [stderr]   Downloaded futures-join-macro-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-select-macro-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-timer v1.0.3
[INFO] [stderr]   Downloaded socket2 v0.3.19
[INFO] [stderr]   Downloaded reqwest v0.10.10
[INFO] [stderr]   Downloaded hyper v0.13.10
[INFO] [stderr]   Downloaded h2 v0.2.7
[INFO] [stderr]   Downloaded tokio v0.2.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c
[INFO] running `Command { std: "docker" "start" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling union_impl v0.1.3
[INFO] [stderr]    Compiling union_export v0.1.3
[INFO] [stderr]    Compiling union v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 5.14s
[INFO] running `Command { std: "docker" "inspect" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.191
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[INFO] [stderr]    Compiling native-tls v0.2.18
[INFO] [stderr]    Compiling tokio-tls v0.3.1
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[INFO] [stderr]    Compiling icu_collections v2.3.0
[INFO] [stderr]    Compiling icu_locale_core v2.3.0
[INFO] [stderr]    Compiling icu_provider v2.3.1
[INFO] [stderr]    Compiling icu_normalizer v2.3.0
[INFO] [stderr]    Compiling icu_properties v2.3.0
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling idna_adapter v1.2.2
[INFO] [stderr]    Compiling idna v1.1.0
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[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.10
[INFO] [stderr]    Compiling union v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> tests/union_async_spawn.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         rt.block_on(async {
[INFO] [stdout]    |         ^^ cannot borrow as mutable
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> tests/union_async_spawn.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         rt.block_on(async {
[INFO] [stdout]    |         ^^ cannot borrow as mutable
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> tests/union_async_spawn.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         rt.block_on(async {
[INFO] [stdout]     |         ^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]     |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> tests/union_async_spawn.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         rt.block_on(
[INFO] [stdout]     |         ^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]     |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> tests/union_async.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |         rt.block_on(async {
[INFO] [stdout]     |         ^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 404 |         let mut rt = ::tokio::runtime::Runtime::new().unwrap();
[INFO] [stdout]     |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `union` (test "union_async") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> tests/union_async_spawn.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         rt.block_on(async {
[INFO] [stdout]     |         ^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 250 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]     |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> tests/union_async_spawn.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |         rt.block_on(async {
[INFO] [stdout]     |         ^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 289 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]     |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> tests/union_async_spawn.rs:346:9
[INFO] [stdout]     |
[INFO] [stdout] 346 |         rt.block_on(async {
[INFO] [stdout]     |         ^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 345 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]     |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> tests/union_async_spawn.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 |         rt.block_on(async {
[INFO] [stdout]     |         ^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 354 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]     |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rt` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> tests/union_async_spawn.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |         rt.block_on(async {
[INFO] [stdout]     |         ^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 364 |         let mut rt = Runtime::new().unwrap();
[INFO] [stdout]     |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `union` (test "union_async_spawn") due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c", kill_on_drop: false }`
[INFO] [stdout] be4286d9512badcfcf600163d4ea726f3981e20078fd5d98605e00fb4afa412c
