[INFO] cloning repository https://github.com/ThijsRay/isochronous_finite_fields
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ThijsRay/isochronous_finite_fields" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThijsRay%2Fisochronous_finite_fields", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThijsRay%2Fisochronous_finite_fields'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da14e5e83b7f41fe9dff892f7d96f94b13a8e577
[INFO] checking ThijsRay/isochronous_finite_fields against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThijsRay%2Fisochronous_finite_fields" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ThijsRay/isochronous_finite_fields on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
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[INFO] started tweaking git repo https://github.com/ThijsRay/isochronous_finite_fields
[INFO] finished tweaking git repo https://github.com/ThijsRay/isochronous_finite_fields
[INFO] tweaked toml for git repo https://github.com/ThijsRay/isochronous_finite_fields written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages
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[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 }`
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[INFO] running `Command { std: "docker" "inspect" "2231f562060f51fdf8e9e56e13a91c32796db3ccf40810d96bb74ea9fe68e501", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2231f562060f51fdf8e9e56e13a91c32796db3ccf40810d96bb74ea9fe68e501", kill_on_drop: false }`
[INFO] [stdout] 2231f562060f51fdf8e9e56e13a91c32796db3ccf40810d96bb74ea9fe68e501
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b263cc2b1103d350f0dddd29fa528ec151de5d2eff1187b8cf348c5fa33a87df
[INFO] running `Command { std: "docker" "start" "-a" "b263cc2b1103d350f0dddd29fa528ec151de5d2eff1187b8cf348c5fa33a87df", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking crossbeam-utils v0.8.19
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking regex-syntax v0.8.3
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[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
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[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking half v1.8.3
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[INFO] [stderr]     Checking isochronous_finite_fields v1.0.1 (/opt/rustwide/workdir)
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[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.95s
[INFO] running `Command { std: "docker" "inspect" "b263cc2b1103d350f0dddd29fa528ec151de5d2eff1187b8cf348c5fa33a87df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b263cc2b1103d350f0dddd29fa528ec151de5d2eff1187b8cf348c5fa33a87df", kill_on_drop: false }`
[INFO] [stdout] b263cc2b1103d350f0dddd29fa528ec151de5d2eff1187b8cf348c5fa33a87df
[INFO] checking ThijsRay/isochronous_finite_fields against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThijsRay%2Fisochronous_finite_fields" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ThijsRay/isochronous_finite_fields 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 git repo https://github.com/ThijsRay/isochronous_finite_fields
[INFO] finished tweaking git repo https://github.com/ThijsRay/isochronous_finite_fields
[INFO] tweaked toml for git repo https://github.com/ThijsRay/isochronous_finite_fields written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] cdb15df824fe83c128da0190060cdb0bb93e908eea02add5ac3d1bbbd1bef547
[INFO] running `Command { std: "docker" "start" "-a" "cdb15df824fe83c128da0190060cdb0bb93e908eea02add5ac3d1bbbd1bef547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdb15df824fe83c128da0190060cdb0bb93e908eea02add5ac3d1bbbd1bef547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb15df824fe83c128da0190060cdb0bb93e908eea02add5ac3d1bbbd1bef547", kill_on_drop: false }`
[INFO] [stdout] cdb15df824fe83c128da0190060cdb0bb93e908eea02add5ac3d1bbbd1bef547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2ac29bf5a18ab921f353aedbb6cf820a9b3c8db0b5aba487d64d59155f1a109d
[INFO] running `Command { std: "docker" "start" "-a" "2ac29bf5a18ab921f353aedbb6cf820a9b3c8db0b5aba487d64d59155f1a109d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.19/src/sync/parker.rs:370:25
[INFO] [stdout]     |
[INFO] [stdout] 370 | /                         match self.state.swap(EMPTY, SeqCst) {
[INFO] [stdout] 371 | |                             NOTIFIED | PARKED => return,
[INFO] [stdout] 372 | |                             n => panic!("inconsistent park_timeout state: {}", n),
[INFO] [stdout] 373 | |                         };
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking itertools v0.10.5
[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" "2ac29bf5a18ab921f353aedbb6cf820a9b3c8db0b5aba487d64d59155f1a109d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ac29bf5a18ab921f353aedbb6cf820a9b3c8db0b5aba487d64d59155f1a109d", kill_on_drop: false }`
[INFO] [stdout] 2ac29bf5a18ab921f353aedbb6cf820a9b3c8db0b5aba487d64d59155f1a109d