[INFO] fetching crate mime_guess2 2.0.5...
[INFO] checking mime_guess2-2.0.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate mime_guess2 2.0.5 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mime_guess2 2.0.5 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 mime_guess2 2.0.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mime_guess2 2.0.5
[INFO] tweaked toml for crates.io crate mime_guess2 2.0.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate mime_guess2 2.0.5 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] be77c515f91c256f7c64ddf56d51805d7c2e955c4911958d8ee3292647735b41
[INFO] running `Command { std: "docker" "start" "-a" "be77c515f91c256f7c64ddf56d51805d7c2e955c4911958d8ee3292647735b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be77c515f91c256f7c64ddf56d51805d7c2e955c4911958d8ee3292647735b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be77c515f91c256f7c64ddf56d51805d7c2e955c4911958d8ee3292647735b41", kill_on_drop: false }`
[INFO] [stdout] be77c515f91c256f7c64ddf56d51805d7c2e955c4911958d8ee3292647735b41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c08792c6dd42063fff698c0dac34d2dc1321e3f9fb1ac2ad737015660b03898d
[INFO] running `Command { std: "docker" "start" "-a" "c08792c6dd42063fff698c0dac34d2dc1321e3f9fb1ac2ad737015660b03898d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]    Compiling mime_guess2 v2.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `Command { std: "docker" "inspect" "c08792c6dd42063fff698c0dac34d2dc1321e3f9fb1ac2ad737015660b03898d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c08792c6dd42063fff698c0dac34d2dc1321e3f9fb1ac2ad737015660b03898d", kill_on_drop: false }`
[INFO] [stdout] c08792c6dd42063fff698c0dac34d2dc1321e3f9fb1ac2ad737015660b03898d
[INFO] checking mime_guess2-2.0.5 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate mime_guess2 2.0.5 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate mime_guess2 2.0.5 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 mime_guess2 2.0.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mime_guess2 2.0.5
[INFO] tweaked toml for crates.io crate mime_guess2 2.0.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate mime_guess2 2.0.5 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 38a159ccac45a3a9211339b0dc9a0aa18b0cc9491a62e6abbca5ce6dc3700f12
[INFO] running `Command { std: "docker" "start" "-a" "38a159ccac45a3a9211339b0dc9a0aa18b0cc9491a62e6abbca5ce6dc3700f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38a159ccac45a3a9211339b0dc9a0aa18b0cc9491a62e6abbca5ce6dc3700f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38a159ccac45a3a9211339b0dc9a0aa18b0cc9491a62e6abbca5ce6dc3700f12", kill_on_drop: false }`
[INFO] [stdout] 38a159ccac45a3a9211339b0dc9a0aa18b0cc9491a62e6abbca5ce6dc3700f12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d72c388b4b32219d67481c285706e167130e05d8e0b890b78b453bd152928384
[INFO] running `Command { std: "docker" "start" "-a" "d72c388b4b32219d67481c285706e167130e05d8e0b890b78b453bd152928384", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling mime_guess2 v2.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.16/src/sync/parker.rs:371:25
[INFO] [stdout]     |
[INFO] [stdout] 371 | /                         match self.state.swap(EMPTY, SeqCst) {
[INFO] [stdout] 372 | |                             NOTIFIED | PARKED => return,
[INFO] [stdout] 373 | |                             n => panic!("inconsistent park_timeout state: {}", n),
[INFO] [stdout] 374 | |                         };
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking csv-core v0.1.10
[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 `crossbeam-utils` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d72c388b4b32219d67481c285706e167130e05d8e0b890b78b453bd152928384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72c388b4b32219d67481c285706e167130e05d8e0b890b78b453bd152928384", kill_on_drop: false }`
[INFO] [stdout] d72c388b4b32219d67481c285706e167130e05d8e0b890b78b453bd152928384