[INFO] fetching crate systemd_client 0.2.1...
[INFO] checking systemd_client-0.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate systemd_client 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate systemd_client 0.2.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate systemd_client 0.2.1
[INFO] finished tweaking crates.io crate systemd_client 0.2.1
[INFO] tweaked toml for crates.io crate systemd_client 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate systemd_client 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.3
[INFO] [stderr]   Downloaded zvariant_derive v3.0.0
[INFO] [stderr]   Downloaded enumflags2 v0.7.3
[INFO] [stderr]   Downloaded zbus_macros v2.0.1
[INFO] [stderr]   Downloaded zvariant v3.0.0
[INFO] [stderr]   Downloaded zbus v2.0.1
[INFO] [stderr]   Downloaded async-broadcast v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 282d7ec63cede2c37352e8536604f9c0b8ca6e0750bc0d2316a5096311f76a5d
[INFO] running `Command { std: "docker" "start" "-a" "282d7ec63cede2c37352e8536604f9c0b8ca6e0750bc0d2316a5096311f76a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "282d7ec63cede2c37352e8536604f9c0b8ca6e0750bc0d2316a5096311f76a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "282d7ec63cede2c37352e8536604f9c0b8ca6e0750bc0d2316a5096311f76a5d", kill_on_drop: false }`
[INFO] [stdout] 282d7ec63cede2c37352e8536604f9c0b8ca6e0750bc0d2316a5096311f76a5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d31002365b16a55786ca85febbae77692b1ee6e6ec00b09d861e40e234e985cc
[INFO] running `Command { std: "docker" "start" "-a" "d31002365b16a55786ca85febbae77692b1ee6e6ec00b09d861e40e234e985cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.6.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking easy-parallel v3.2.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking async-broadcast v0.3.4
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking ordered-stream v0.0.1
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling enumflags2_derive v0.7.3
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]    Compiling zvariant_derive v3.0.0
[INFO] [stderr]    Compiling zbus_macros v2.0.1
[INFO] [stderr]     Checking enumflags2 v0.7.3
[INFO] [stderr]     Checking zvariant v3.0.0
[INFO] [stderr]     Checking zbus_names v2.1.0
[INFO] [stderr]     Checking zbus v2.0.1
[INFO] [stderr]     Checking systemd_client v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.47s
[INFO] running `Command { std: "docker" "inspect" "d31002365b16a55786ca85febbae77692b1ee6e6ec00b09d861e40e234e985cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d31002365b16a55786ca85febbae77692b1ee6e6ec00b09d861e40e234e985cc", kill_on_drop: false }`
[INFO] [stdout] d31002365b16a55786ca85febbae77692b1ee6e6ec00b09d861e40e234e985cc
[INFO] checking systemd_client-0.2.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate systemd_client 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate systemd_client 0.2.1 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate systemd_client 0.2.1
[INFO] finished tweaking crates.io crate systemd_client 0.2.1
[INFO] tweaked toml for crates.io crate systemd_client 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate systemd_client 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50f64f346a68ceb38cdcddede973be0d6b11704d6204ddf25b570d683dced996
[INFO] running `Command { std: "docker" "start" "-a" "50f64f346a68ceb38cdcddede973be0d6b11704d6204ddf25b570d683dced996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50f64f346a68ceb38cdcddede973be0d6b11704d6204ddf25b570d683dced996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f64f346a68ceb38cdcddede973be0d6b11704d6204ddf25b570d683dced996", kill_on_drop: false }`
[INFO] [stdout] 50f64f346a68ceb38cdcddede973be0d6b11704d6204ddf25b570d683dced996
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bf606917e54c0eed4322239ecb868aae32243e1e9e62027569c540338c33f1d
[INFO] running `Command { std: "docker" "start" "-a" "0bf606917e54c0eed4322239ecb868aae32243e1e9e62027569c540338c33f1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]     Checking futures-core v0.3.19
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking fastrand v1.6.0
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.12.0/src/future.rs:469:27
[INFO] [stdout]     |
[INFO] [stdout] 469 |             let t1 = res1.map_err(|_| unreachable!()).unwrap();
[INFO] [stdout]     |                           ^^^^^^^ cannot infer type of the type parameter `F` declared on the method `map_err`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 469 |             let t1 = res1.map_err::<F, _>(|_| unreachable!()).unwrap();
[INFO] [stdout]     |                                  ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-lite` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0bf606917e54c0eed4322239ecb868aae32243e1e9e62027569c540338c33f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf606917e54c0eed4322239ecb868aae32243e1e9e62027569c540338c33f1d", kill_on_drop: false }`
[INFO] [stdout] 0bf606917e54c0eed4322239ecb868aae32243e1e9e62027569c540338c33f1d