[INFO] cloning repository https://github.com/rohankumardubey/grex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rohankumardubey/grex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fgrex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fgrex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b384c98f8a094344393181b425187465b783a66
[INFO] checking rohankumardubey/grex against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fgrex" "/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/rohankumardubey/grex on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rohankumardubey/grex
[INFO] finished tweaking git repo https://github.com/rohankumardubey/grex
[INFO] tweaked toml for git repo https://github.com/rohankumardubey/grex written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rohankumardubey/grex 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-error v2.0.0
[INFO] [stderr]   Downloaded predicates-tree v1.0.1
[INFO] [stderr]   Downloaded predicates-core v1.0.1
[INFO] [stderr]   Downloaded unic-ucd-category v0.9.0
[INFO] [stderr]   Downloaded rayon v1.5.2
[INFO] [stderr]   Downloaded assert_cmd v2.0.4
[INFO] [stderr]   Downloaded rstest v0.15.0
[INFO] [stderr]   Downloaded rstest_macros v0.14.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 209a774bdd81a6073892220cbb9bedfa039b1549ea4a8f94158e9cb6e77a1f51
[INFO] running `Command { std: "docker" "start" "-a" "209a774bdd81a6073892220cbb9bedfa039b1549ea4a8f94158e9cb6e77a1f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "209a774bdd81a6073892220cbb9bedfa039b1549ea4a8f94158e9cb6e77a1f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "209a774bdd81a6073892220cbb9bedfa039b1549ea4a8f94158e9cb6e77a1f51", kill_on_drop: false }`
[INFO] [stdout] 209a774bdd81a6073892220cbb9bedfa039b1549ea4a8f94158e9cb6e77a1f51
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbd67db09189d07dac6274e48c4045d7897df32d2fa77778076ea66115d6d8e8
[INFO] running `Command { std: "docker" "start" "-a" "dbd67db09189d07dac6274e48c4045d7897df32d2fa77778076ea66115d6d8e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling serde_json v1.0.80
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking clap_lex v0.2.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling rstest_macros v0.14.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling rayon v1.5.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking predicates-core v1.0.1
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking fastrand v1.6.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking petgraph v0.6.2
[INFO] [stderr]     Checking unic-ucd-category v0.9.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking predicates-tree v1.0.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling indoc v1.0.7
[INFO] [stderr]     Checking proptest v1.0.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]     Checking clap v3.2.16
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking grex v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking rstest v0.15.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.97s
[INFO] running `Command { std: "docker" "inspect" "dbd67db09189d07dac6274e48c4045d7897df32d2fa77778076ea66115d6d8e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd67db09189d07dac6274e48c4045d7897df32d2fa77778076ea66115d6d8e8", kill_on_drop: false }`
[INFO] [stdout] dbd67db09189d07dac6274e48c4045d7897df32d2fa77778076ea66115d6d8e8