[INFO] fetching crate async-scoped 0.5.1...
[INFO] checking async-scoped-0.5.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate async-scoped 0.5.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate async-scoped 0.5.1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-scoped 0.5.1
[INFO] finished tweaking crates.io crate async-scoped 0.5.1
[INFO] tweaked toml for crates.io crate async-scoped 0.5.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termios v0.3.3
[INFO] [stderr]   Downloaded femme v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6eb5e990461c3a45b4cfd78a8d94d9fb82a59551cff7c432b49207a22f57fef7
[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" "6eb5e990461c3a45b4cfd78a8d94d9fb82a59551cff7c432b49207a22f57fef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6eb5e990461c3a45b4cfd78a8d94d9fb82a59551cff7c432b49207a22f57fef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eb5e990461c3a45b4cfd78a8d94d9fb82a59551cff7c432b49207a22f57fef7", kill_on_drop: false }`
[INFO] [stdout] 6eb5e990461c3a45b4cfd78a8d94d9fb82a59551cff7c432b49207a22f57fef7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--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] 2768374fd005c9dbbd5d3e9fab45d5e5b30b855f07bc1c0c894f710dc4b3dcfd
[INFO] running `Command { std: "docker" "start" "-a" "2768374fd005c9dbbd5d3e9fab45d5e5b30b855f07bc1c0c894f710dc4b3dcfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking futures-io v0.3.8
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[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]    Compiling ryu v1.0.5
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[INFO] [stderr]     Checking serde v1.0.118
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[INFO] [stderr]     Checking aho-corasick v0.7.15
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[INFO] [stderr]    Compiling quote v0.6.13
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[INFO] [stderr]     Checking parking_lot_core v0.8.1
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[INFO] [stderr]     Checking clicolors-control v1.0.1
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[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]    Compiling async-log-attributes v1.0.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking async-log v1.1.0
[INFO] [stderr]     Checking async-std v1.8.0
[INFO] [stderr]     Checking pin-project v1.0.2
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[INFO] [stderr]     Checking futures-util v0.3.8
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[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking async-scoped v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/utils.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! cfg_async_std_or_else {
[INFO] [stdout] 13 | |     ($($item:item)*) => {
[INFO] [stdout] 14 | |         $(
[INFO] [stdout] 15 | |             #[cfg(all(feature = "use-tokio", not( feature = "use-async-std" ) ))]
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     }
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/utils.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! cfg_async_std_or_else {
[INFO] [stdout] 13 | |     ($($item:item)*) => {
[INFO] [stdout] 14 | |         $(
[INFO] [stdout] 15 | |             #[cfg(all(feature = "use-tokio", not( feature = "use-async-std" ) ))]
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     }
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2768374fd005c9dbbd5d3e9fab45d5e5b30b855f07bc1c0c894f710dc4b3dcfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2768374fd005c9dbbd5d3e9fab45d5e5b30b855f07bc1c0c894f710dc4b3dcfd", kill_on_drop: false }`
[INFO] [stdout] 2768374fd005c9dbbd5d3e9fab45d5e5b30b855f07bc1c0c894f710dc4b3dcfd