[INFO] cloning repository https://github.com/alamb/rust_tokio_overhead
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alamb/rust_tokio_overhead" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falamb%2Frust_tokio_overhead", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falamb%2Frust_tokio_overhead'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44af53837e5c7479f37fd489c679d2f288cf3ab5
[INFO] checking alamb/rust_tokio_overhead against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falamb%2Frust_tokio_overhead" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alamb/rust_tokio_overhead 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 git repo https://github.com/alamb/rust_tokio_overhead
[INFO] finished tweaking git repo https://github.com/alamb/rust_tokio_overhead
[INFO] tweaked toml for git repo https://github.com/alamb/rust_tokio_overhead written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/alamb/rust_tokio_overhead 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 lexical-core v0.8.2
[INFO] [stderr]   Downloaded lexical-parse-integer v0.8.0
[INFO] [stderr]   Downloaded lexical-write-float v0.8.2
[INFO] [stderr]   Downloaded lexical-write-integer v0.8.0
[INFO] [stderr]   Downloaded lexical-parse-float v0.8.2
[INFO] [stderr]   Downloaded arrow v6.4.0
[INFO] [stderr]   Downloaded lexical-util v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 11b70cf75a6ed14e06f7020a4121c7fc3084a396d6c9d443b2c6a94184994587
[INFO] running `Command { std: "docker" "start" "-a" "11b70cf75a6ed14e06f7020a4121c7fc3084a396d6c9d443b2c6a94184994587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11b70cf75a6ed14e06f7020a4121c7fc3084a396d6c9d443b2c6a94184994587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11b70cf75a6ed14e06f7020a4121c7fc3084a396d6c9d443b2c6a94184994587", kill_on_drop: false }`
[INFO] [stdout] 11b70cf75a6ed14e06f7020a4121c7fc3084a396d6c9d443b2c6a94184994587
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1fae45866956436549ac6e0c8df56901791ec0056ab6ccd11d33762bd562a1ed
[INFO] running `Command { std: "docker" "start" "-a" "1fae45866956436549ac6e0c8df56901791ec0056ab6ccd11d33762bd562a1ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking lexical-util v0.8.1
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking lexical-write-integer v0.8.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking lexical-parse-integer v0.8.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]     Checking lexical-parse-float v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-complex v0.4.0
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[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking itoa v0.4.8
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[INFO] [stderr]     Checking rand v0.8.4
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[INFO] [stderr]     Checking num_cpus v1.13.1
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[INFO] [stderr]     Checking tokio v1.15.0
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[INFO] [stderr]     Checking bstr v0.2.17
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[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling multiversion-macros v0.6.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking flatbuffers v2.0.0
[INFO] [stderr]     Checking multiversion v0.6.1
[INFO] [stderr]     Checking arrow v6.4.0
[INFO] [stderr]     Checking rust_tokio_overhead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.50s
[INFO] running `Command { std: "docker" "inspect" "1fae45866956436549ac6e0c8df56901791ec0056ab6ccd11d33762bd562a1ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fae45866956436549ac6e0c8df56901791ec0056ab6ccd11d33762bd562a1ed", kill_on_drop: false }`
[INFO] [stdout] 1fae45866956436549ac6e0c8df56901791ec0056ab6ccd11d33762bd562a1ed
[INFO] checking alamb/rust_tokio_overhead against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falamb%2Frust_tokio_overhead" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alamb/rust_tokio_overhead 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/alamb/rust_tokio_overhead
[INFO] finished tweaking git repo https://github.com/alamb/rust_tokio_overhead
[INFO] tweaked toml for git repo https://github.com/alamb/rust_tokio_overhead written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/alamb/rust_tokio_overhead 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 79b5a2732b321e7e711c9798dd838b7b3e4edc94ed72d1e4ea845e7a2f982bc7
[INFO] running `Command { std: "docker" "start" "-a" "79b5a2732b321e7e711c9798dd838b7b3e4edc94ed72d1e4ea845e7a2f982bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79b5a2732b321e7e711c9798dd838b7b3e4edc94ed72d1e4ea845e7a2f982bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79b5a2732b321e7e711c9798dd838b7b3e4edc94ed72d1e4ea845e7a2f982bc7", kill_on_drop: false }`
[INFO] [stdout] 79b5a2732b321e7e711c9798dd838b7b3e4edc94ed72d1e4ea845e7a2f982bc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e7c9c47566711f9199ffd06cca7d7f9d3900b9b1662e73479ec1a1903765857d
[INFO] running `Command { std: "docker" "start" "-a" "e7c9c47566711f9199ffd06cca7d7f9d3900b9b1662e73479ec1a1903765857d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]     Checking lexical-util v0.8.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking lexical-write-integer v0.8.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking lexical-parse-integer v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/lexical-parse-integer-0.8.0/src/shared.rs:366:13
[INFO] [stdout]     |
[INFO] [stdout] 366 | /             match iter.peek().map(|&c| char_to_digit_const(c, format.radix())) {
[INFO] [stdout] 367 | |                 // Valid digit, we have an invalid value.
[INFO] [stdout] 368 | |                 Some(Some(_)) => return into_error!(InvalidLeadingZeros, index),
[INFO] [stdout] 369 | |                 // Either not a digit that follows, or nothing follows.
[INFO] [stdout] 370 | |                 _ => return $into_ok!(<$t>::ZERO, index),
[INFO] [stdout] 371 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/lexical-parse-integer-0.8.0/src/algorithm.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |       algorithm!(bytes, FORMAT, T, Unsigned, parse_digits, invalid_digit_complete, into_ok_complete)
[INFO] [stdout]     |       ---------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `algorithm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[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 `lexical-parse-integer` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e7c9c47566711f9199ffd06cca7d7f9d3900b9b1662e73479ec1a1903765857d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7c9c47566711f9199ffd06cca7d7f9d3900b9b1662e73479ec1a1903765857d", kill_on_drop: false }`
[INFO] [stdout] e7c9c47566711f9199ffd06cca7d7f9d3900b9b1662e73479ec1a1903765857d