[INFO] cloning repository https://github.com/hediet/merch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hediet/merch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhediet%2Fmerch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhediet%2Fmerch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fe323124fae7c6515faa758cefce67901df967a
[INFO] checking hediet/merch against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhediet%2Fmerch" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hediet/merch 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/hediet/merch
[INFO] finished tweaking git repo https://github.com/hediet/merch
[INFO] tweaked toml for git repo https://github.com/hediet/merch written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hediet/merch 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 blake2 v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e0359244a40abed73d43160b6235c0bf54e272e0c713f939fb5c821dfeb32b7c
[INFO] running `Command { std: "docker" "start" "-a" "e0359244a40abed73d43160b6235c0bf54e272e0c713f939fb5c821dfeb32b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0359244a40abed73d43160b6235c0bf54e272e0c713f939fb5c821dfeb32b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0359244a40abed73d43160b6235c0bf54e272e0c713f939fb5c821dfeb32b7c", kill_on_drop: false }`
[INFO] [stdout] e0359244a40abed73d43160b6235c0bf54e272e0c713f939fb5c821dfeb32b7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c1f1959dc372a08f20be72ec1b6366d56a13aa82397b2b1331204f2b74e5b0b3
[INFO] running `Command { std: "docker" "start" "-a" "c1f1959dc372a08f20be72ec1b6366d56a13aa82397b2b1331204f2b74e5b0b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking pathdiff v0.1.0
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking blake2 v0.8.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking merch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:53
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{prelude::*, stdin, stdout, BufReader, Write};
[INFO] [stdout]   |               ----------                            ^^^^^
[INFO] [stdout]   |               |
[INFO] [stdout]   |               the item `Write` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:53
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{prelude::*, stdin, stdout, BufReader, Write};
[INFO] [stdout]   |               ----------                            ^^^^^
[INFO] [stdout]   |               |
[INFO] [stdout]   |               the item `Write` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]   --> src/split_file/parsed_merch_doc.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct UpdatedFileInfo<'t> {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 20 |     pub idx: usize,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UpdatedFileInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]   --> src/split_file/parsed_merch_doc.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct UpdatedFileInfo<'t> {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 20 |     pub idx: usize,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UpdatedFileInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "c1f1959dc372a08f20be72ec1b6366d56a13aa82397b2b1331204f2b74e5b0b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1f1959dc372a08f20be72ec1b6366d56a13aa82397b2b1331204f2b74e5b0b3", kill_on_drop: false }`
[INFO] [stdout] c1f1959dc372a08f20be72ec1b6366d56a13aa82397b2b1331204f2b74e5b0b3
[INFO] checking hediet/merch against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhediet%2Fmerch" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hediet/merch 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/hediet/merch
[INFO] finished tweaking git repo https://github.com/hediet/merch
[INFO] tweaked toml for git repo https://github.com/hediet/merch written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hediet/merch 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 216a5d2942a7a56194c42cba6461da30e08491a2a56346076e3dad588e223e94
[INFO] running `Command { std: "docker" "start" "-a" "216a5d2942a7a56194c42cba6461da30e08491a2a56346076e3dad588e223e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "216a5d2942a7a56194c42cba6461da30e08491a2a56346076e3dad588e223e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216a5d2942a7a56194c42cba6461da30e08491a2a56346076e3dad588e223e94", kill_on_drop: false }`
[INFO] [stdout] 216a5d2942a7a56194c42cba6461da30e08491a2a56346076e3dad588e223e94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6708d047517c998504e368ea0b922c7739b2b87fd2a34b2744037d51bab9ed7d
[INFO] running `Command { std: "docker" "start" "-a" "6708d047517c998504e368ea0b922c7739b2b87fd2a34b2744037d51bab9ed7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking pathdiff v0.1.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking blake2 v0.8.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.1.0/src/exec.rs:754:13
[INFO] [stdout]     |
[INFO] [stdout] 754 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 755 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 756 | |                 self.cache,
[INFO] [stdout] 757 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 764 | |                 Quit => return Some(Quit),
[INFO] [stdout] 765 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[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 `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6708d047517c998504e368ea0b922c7739b2b87fd2a34b2744037d51bab9ed7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6708d047517c998504e368ea0b922c7739b2b87fd2a34b2744037d51bab9ed7d", kill_on_drop: false }`
[INFO] [stdout] 6708d047517c998504e368ea0b922c7739b2b87fd2a34b2744037d51bab9ed7d