[INFO] fetching crate grrscj 0.1.0...
[INFO] checking grrscj-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate grrscj 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate grrscj 0.1.0 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 crates.io crate grrscj 0.1.0
[INFO] finished tweaking crates.io crate grrscj 0.1.0
[INFO] tweaked toml for crates.io crate grrscj 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate grrscj 0.1.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termtree v0.2.4
[INFO] [stderr]   Downloaded assert_fs v1.0.7
[INFO] [stderr]   Downloaded predicates-core v1.0.3
[INFO] [stderr]   Downloaded predicates v2.1.1
[INFO] [stderr]   Downloaded clap_derive v3.2.17
[INFO] [stderr]   Downloaded assert_cmd v2.0.4
[INFO] [stderr]   Downloaded predicates-tree v1.0.5
[INFO] [stderr]   Downloaded clap v3.2.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 54a114e91fc72b8bcdff6cc0c858a05fd62fc4ee83c64bac6ace3cebc2ee4d51
[INFO] running `Command { std: "docker" "start" "-a" "54a114e91fc72b8bcdff6cc0c858a05fd62fc4ee83c64bac6ace3cebc2ee4d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54a114e91fc72b8bcdff6cc0c858a05fd62fc4ee83c64bac6ace3cebc2ee4d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54a114e91fc72b8bcdff6cc0c858a05fd62fc4ee83c64bac6ace3cebc2ee4d51", kill_on_drop: false }`
[INFO] [stdout] 54a114e91fc72b8bcdff6cc0c858a05fd62fc4ee83c64bac6ace3cebc2ee4d51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] de558c1829f6990c4342b2991f2fcb71b19f74fcc05b2a24aa2619b9034b4c78
[INFO] running `Command { std: "docker" "start" "-a" "de558c1829f6990c4342b2991f2fcb71b19f74fcc05b2a24aa2619b9034b4c78", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]    Compiling anyhow v1.0.61
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking globset v0.4.9
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]     Checking assert_fs v1.0.7
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking grrscj v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.82s
[INFO] running `Command { std: "docker" "inspect" "de558c1829f6990c4342b2991f2fcb71b19f74fcc05b2a24aa2619b9034b4c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de558c1829f6990c4342b2991f2fcb71b19f74fcc05b2a24aa2619b9034b4c78", kill_on_drop: false }`
[INFO] [stdout] de558c1829f6990c4342b2991f2fcb71b19f74fcc05b2a24aa2619b9034b4c78
[INFO] checking grrscj-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate grrscj 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate grrscj 0.1.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grrscj 0.1.0
[INFO] finished tweaking crates.io crate grrscj 0.1.0
[INFO] tweaked toml for crates.io crate grrscj 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate grrscj 0.1.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89cb02c126f3f82d90e95e63dc3fb1307772772a5f170828a63c8beab9ceb914
[INFO] running `Command { std: "docker" "start" "-a" "89cb02c126f3f82d90e95e63dc3fb1307772772a5f170828a63c8beab9ceb914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89cb02c126f3f82d90e95e63dc3fb1307772772a5f170828a63c8beab9ceb914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89cb02c126f3f82d90e95e63dc3fb1307772772a5f170828a63c8beab9ceb914", kill_on_drop: false }`
[INFO] [stdout] 89cb02c126f3f82d90e95e63dc3fb1307772772a5f170828a63c8beab9ceb914
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4eee7a7b5765ce44e25e60773d97c12c051aad80f2f1d4a2aadee89ae8cbebd
[INFO] running `Command { std: "docker" "start" "-a" "b4eee7a7b5765ce44e25e60773d97c12c051aad80f2f1d4a2aadee89ae8cbebd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]    Compiling anyhow v1.0.61
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking globset v0.4.9
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]     Checking assert_fs v1.0.7
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking grrscj v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.82s
[INFO] running `Command { std: "docker" "inspect" "b4eee7a7b5765ce44e25e60773d97c12c051aad80f2f1d4a2aadee89ae8cbebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4eee7a7b5765ce44e25e60773d97c12c051aad80f2f1d4a2aadee89ae8cbebd", kill_on_drop: false }`
[INFO] [stdout] b4eee7a7b5765ce44e25e60773d97c12c051aad80f2f1d4a2aadee89ae8cbebd