[INFO] fetching crate stream_router 0.2.1...
[INFO] checking stream_router-0.2.1 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate stream_router 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate stream_router 0.2.1
[INFO] finished tweaking crates.io crate stream_router 0.2.1
[INFO] tweaked toml for crates.io crate stream_router 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stream_router 0.2.1 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stream_router 0.2.1 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2d0b9e5e30f92f2c22a26c74b7df8de9662dc402edec4ca4683c56ecdf5346a
[INFO] running `Command { std: "docker" "start" "-a" "a2d0b9e5e30f92f2c22a26c74b7df8de9662dc402edec4ca4683c56ecdf5346a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2d0b9e5e30f92f2c22a26c74b7df8de9662dc402edec4ca4683c56ecdf5346a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2d0b9e5e30f92f2c22a26c74b7df8de9662dc402edec4ca4683c56ecdf5346a", kill_on_drop: false }`
[INFO] [stdout] a2d0b9e5e30f92f2c22a26c74b7df8de9662dc402edec4ca4683c56ecdf5346a
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d34884f6a4c468433ef33219d5044071d4a7ddc85f579ea5f4731055bf56670a
[INFO] running `Command { std: "docker" "start" "-a" "d34884f6a4c468433ef33219d5044071d4a7ddc85f579ea5f4731055bf56670a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking arc-swap v0.4.5
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking tokio v0.2.17
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking futures-test v0.3.4
[INFO] [stderr]     Checking stream_router v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num_stream v0.1.1
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait impl blocks
[INFO] [stdout]    --> src/lib.rs:361:1
[INFO] [stdout]     |
[INFO] [stdout] 361 | #[must_use = "streams do nothing unless you `.await` or poll them"]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, traits, and unions
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait impl blocks
[INFO] [stdout]    --> src/lib.rs:361:1
[INFO] [stdout]     |
[INFO] [stdout] 361 | #[must_use = "streams do nothing unless you `.await` or poll them"]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, traits, and unions
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 13`
[INFO] running `Command { std: "docker" "inspect" "d34884f6a4c468433ef33219d5044071d4a7ddc85f579ea5f4731055bf56670a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d34884f6a4c468433ef33219d5044071d4a7ddc85f579ea5f4731055bf56670a", kill_on_drop: false }`
[INFO] [stdout] d34884f6a4c468433ef33219d5044071d4a7ddc85f579ea5f4731055bf56670a