[INFO] fetching crate madness 0.1.0...
[INFO] checking madness-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate madness 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate madness 0.1.0
[INFO] finished tweaking crates.io crate madness 0.1.0
[INFO] tweaked toml for crates.io crate madness 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate madness 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate madness 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9241adce483aa64f20c2f648b07ad42b9962a628b3e312693b8d6d55208e4ea3
[INFO] running `Command { std: "docker" "start" "-a" "9241adce483aa64f20c2f648b07ad42b9962a628b3e312693b8d6d55208e4ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9241adce483aa64f20c2f648b07ad42b9962a628b3e312693b8d6d55208e4ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9241adce483aa64f20c2f648b07ad42b9962a628b3e312693b8d6d55208e4ea3", kill_on_drop: false }`
[INFO] [stdout] 9241adce483aa64f20c2f648b07ad42b9962a628b3e312693b8d6d55208e4ea3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bba8f871e64b93e80db0066a3c9979e604fb71d35676c7dd835704f58aecaea2
[INFO] running `Command { std: "docker" "start" "-a" "bba8f871e64b93e80db0066a3c9979e604fb71d35676c7dd835704f58aecaea2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking madness v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/service.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ServiceDiscovery(oneshot::Sender<()>, String);
[INFO] [stdout]    |            ---------------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 37 - pub struct ServiceDiscovery(oneshot::Sender<()>, String);
[INFO] [stdout] 37 + pub struct ServiceDiscovery((), String);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio_mdns`
[INFO] [stdout]  --> examples/simple_advertisement.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio_mdns::service::MdnsService;
[INFO] [stdout]   |     ^^^^^^^^^^ use of unresolved module or unlinked crate `tokio_mdns`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `tokio_mdns`, use `cargo add tokio_mdns` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio_mdns`
[INFO] [stdout]  --> examples/simple_advertisement.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio_mdns::packet::MdnsPacket;
[INFO] [stdout]   |     ^^^^^^^^^^ use of unresolved module or unlinked crate `tokio_mdns`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `tokio_mdns`, use `cargo add tokio_mdns` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio_mdns`
[INFO] [stdout]  --> examples/simple_advertisement.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio_mdns::dns::PacketBuilder;
[INFO] [stdout]   |     ^^^^^^^^^^ use of unresolved module or unlinked crate `tokio_mdns`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `tokio_mdns`, use `cargo add tokio_mdns` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `madness` (example "simple_advertisement") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/service.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ServiceDiscovery(oneshot::Sender<()>, String);
[INFO] [stdout]    |            ---------------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 37 - pub struct ServiceDiscovery(oneshot::Sender<()>, String);
[INFO] [stdout] 37 + pub struct ServiceDiscovery((), String);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bba8f871e64b93e80db0066a3c9979e604fb71d35676c7dd835704f58aecaea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bba8f871e64b93e80db0066a3c9979e604fb71d35676c7dd835704f58aecaea2", kill_on_drop: false }`
[INFO] [stdout] bba8f871e64b93e80db0066a3c9979e604fb71d35676c7dd835704f58aecaea2