[INFO] cloning repository https://github.com/bczhc/temp-tools-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bczhc/temp-tools-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbczhc%2Ftemp-tools-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbczhc%2Ftemp-tools-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0834ab557632e23c0bfc400de681c85d95b6c7e
[INFO] checking bczhc/temp-tools-rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbczhc%2Ftemp-tools-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bczhc/temp-tools-rust 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/bczhc/temp-tools-rust
[INFO] finished tweaking git repo https://github.com/bczhc/temp-tools-rust
[INFO] tweaked toml for git repo https://github.com/bczhc/temp-tools-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bczhc/temp-tools-rust 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] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ucd-util v0.1.8
[INFO] [stderr]   Downloaded systemstat v0.1.10
[INFO] [stderr]   Downloaded interfaces v0.0.8
[INFO] [stderr]   Downloaded shared_child v0.3.5
[INFO] [stderr]   Downloaded duct v0.13.5
[INFO] [stderr]   Downloaded lettre v0.10.0-rc.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2ec24e14e347999a13a81de7a5c928d1a3a28a025ad3b2c1f0fd5547a0996265
[INFO] running `Command { std: "docker" "start" "-a" "2ec24e14e347999a13a81de7a5c928d1a3a28a025ad3b2c1f0fd5547a0996265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ec24e14e347999a13a81de7a5c928d1a3a28a025ad3b2c1f0fd5547a0996265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec24e14e347999a13a81de7a5c928d1a3a28a025ad3b2c1f0fd5547a0996265", kill_on_drop: false }`
[INFO] [stdout] 2ec24e14e347999a13a81de7a5c928d1a3a28a025ad3b2c1f0fd5547a0996265
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d075f52ec48213eec24844359ee02360c7ce39cf05d2d1d6c7a8f5dae89fac8d
[INFO] running `Command { std: "docker" "start" "-a" "d075f52ec48213eec24844359ee02360c7ce39cf05d2d1d6c7a8f5dae89fac8d", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking shared_child v0.3.5
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking quoted_printable v0.4.5
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling handlebars v0.29.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking bytesize v1.1.0
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]     Checking systemstat v0.1.10
[INFO] [stderr]     Checking duct v0.13.5
[INFO] [stderr]     Checking lettre v0.10.0-rc.4
[INFO] [stderr]    Compiling interfaces v0.0.8
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking net-traffic-alerter v0.1.0 (/opt/rustwide/workdir/net-traffic-alerter)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.24s
[INFO] running `Command { std: "docker" "inspect" "d075f52ec48213eec24844359ee02360c7ce39cf05d2d1d6c7a8f5dae89fac8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d075f52ec48213eec24844359ee02360c7ce39cf05d2d1d6c7a8f5dae89fac8d", kill_on_drop: false }`
[INFO] [stdout] d075f52ec48213eec24844359ee02360c7ce39cf05d2d1d6c7a8f5dae89fac8d
[INFO] checking bczhc/temp-tools-rust against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbczhc%2Ftemp-tools-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bczhc/temp-tools-rust 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/bczhc/temp-tools-rust
[INFO] finished tweaking git repo https://github.com/bczhc/temp-tools-rust
[INFO] tweaked toml for git repo https://github.com/bczhc/temp-tools-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bczhc/temp-tools-rust 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] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d8620654da2077df25e459df1ec784c3145ded4de1c61a813c80c2c0238bcc51
[INFO] running `Command { std: "docker" "start" "-a" "d8620654da2077df25e459df1ec784c3145ded4de1c61a813c80c2c0238bcc51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8620654da2077df25e459df1ec784c3145ded4de1c61a813c80c2c0238bcc51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8620654da2077df25e459df1ec784c3145ded4de1c61a813c80c2c0238bcc51", kill_on_drop: false }`
[INFO] [stdout] d8620654da2077df25e459df1ec784c3145ded4de1c61a813c80c2c0238bcc51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 131f2b732a2932d02062a1ab2a64a4ec72872a88a75b718dad1c202f9724478b
[INFO] running `Command { std: "docker" "start" "-a" "131f2b732a2932d02062a1ab2a64a4ec72872a88a75b718dad1c202f9724478b", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.2.11/src/exec.rs:756:13
[INFO] [stdout]     |
[INFO] [stdout] 756 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 757 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 758 | |                 self.cache,
[INFO] [stdout] 759 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 766 | |                 Quit => return Some(Quit),
[INFO] [stdout] 767 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[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 `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "131f2b732a2932d02062a1ab2a64a4ec72872a88a75b718dad1c202f9724478b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "131f2b732a2932d02062a1ab2a64a4ec72872a88a75b718dad1c202f9724478b", kill_on_drop: false }`
[INFO] [stdout] 131f2b732a2932d02062a1ab2a64a4ec72872a88a75b718dad1c202f9724478b