[INFO] cloning repository https://github.com/audunhalland/regex-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/audunhalland/regex-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudunhalland%2Fregex-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudunhalland%2Fregex-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05a9fbb75ca4d7e937416dde1f0671aeb0ad47c1
[INFO] checking audunhalland/regex-test against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudunhalland%2Fregex-test" "/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/audunhalland/regex-test on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/audunhalland/regex-test
[INFO] finished tweaking git repo https://github.com/audunhalland/regex-test
[INFO] tweaked toml for git repo https://github.com/audunhalland/regex-test written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/audunhalland/regex-test 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fst v0.4.5
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba03281320fa58d23c5e4fe8e4b6d8596805d9bf1498f360093377cce9f8e979
[INFO] running `Command { std: "docker" "start" "-a" "ba03281320fa58d23c5e4fe8e4b6d8596805d9bf1498f360093377cce9f8e979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba03281320fa58d23c5e4fe8e4b6d8596805d9bf1498f360093377cce9f8e979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba03281320fa58d23c5e4fe8e4b6d8596805d9bf1498f360093377cce9f8e979", kill_on_drop: false }`
[INFO] [stdout] ba03281320fa58d23c5e4fe8e4b6d8596805d9bf1498f360093377cce9f8e979
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea70249fd3d46144ffdd8ce5525f210288bc9066676293b220fed1dbbcf7e86e
[INFO] running `Command { std: "docker" "start" "-a" "ea70249fd3d46144ffdd8ce5525f210288bc9066676293b220fed1dbbcf7e86e", kill_on_drop: false }`
[INFO] [stderr]    Compiling fst v0.4.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `test_util` is imported redundantly
[INFO] [stdout]    --> src/token_matcher/automaton_matcher.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |     use super::test_util;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 192 |     use super::*;
[INFO] [stdout]     |         -------- the item `test_util` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::PerfTimer`
[INFO] [stdout]    --> src/token_matcher/automaton_matcher.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |     use crate::PerfTimer;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `test_util` is imported redundantly
[INFO] [stdout]    --> src/token_matcher/regex_matcher.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     use super::test_util;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 223 |     use super::*;
[INFO] [stdout]     |         -------- the item `test_util` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `test_util` is imported redundantly
[INFO] [stdout]    --> src/token_matcher/automaton_matcher.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |     use super::test_util;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 192 |     use super::*;
[INFO] [stdout]     |         -------- the item `test_util` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `test_util` is imported redundantly
[INFO] [stdout]    --> src/token_matcher/regex_matcher.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     use super::test_util;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 223 |     use super::*;
[INFO] [stdout]     |         -------- the item `test_util` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 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 2.23s
[INFO] running `Command { std: "docker" "inspect" "ea70249fd3d46144ffdd8ce5525f210288bc9066676293b220fed1dbbcf7e86e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea70249fd3d46144ffdd8ce5525f210288bc9066676293b220fed1dbbcf7e86e", kill_on_drop: false }`
[INFO] [stdout] ea70249fd3d46144ffdd8ce5525f210288bc9066676293b220fed1dbbcf7e86e