[INFO] fetching crate cargo-demangle 0.1.3...
[INFO] checking cargo-demangle-0.1.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate cargo-demangle 0.1.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cargo-demangle 0.1.3 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 cargo-demangle 0.1.3
[INFO] finished tweaking crates.io crate cargo-demangle 0.1.3
[INFO] tweaked toml for crates.io crate cargo-demangle 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-demangle 0.1.3 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 rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded clap_lex v0.2.2
[INFO] [stderr]   Downloaded os_str_bytes v6.1.0
[INFO] [stderr]   Downloaded regex v1.5.6
[INFO] [stderr]   Downloaded hashbrown v0.12.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.26
[INFO] [stderr]   Downloaded indexmap v1.9.0
[INFO] [stderr]   Downloaded clap v3.2.5
[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] fdbf250ca097c0960231f4daec28fa7bdd6efe44a87cc4ecf304f21fcc14482c
[INFO] running `Command { std: "docker" "start" "-a" "fdbf250ca097c0960231f4daec28fa7bdd6efe44a87cc4ecf304f21fcc14482c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdbf250ca097c0960231f4daec28fa7bdd6efe44a87cc4ecf304f21fcc14482c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdbf250ca097c0960231f4daec28fa7bdd6efe44a87cc4ecf304f21fcc14482c", kill_on_drop: false }`
[INFO] [stdout] fdbf250ca097c0960231f4daec28fa7bdd6efe44a87cc4ecf304f21fcc14482c
[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] a55b8677ca06faa5654dfd4c4fc45e49bc2d7a0d77d06024d1a8824a5b3253d7
[INFO] running `Command { std: "docker" "start" "-a" "a55b8677ca06faa5654dfd4c4fc45e49bc2d7a0d77d06024d1a8824a5b3253d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking clap_lex v0.2.2
[INFO] [stderr]    Compiling indexmap v1.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v3.2.5
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking cargo-demangle v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "a55b8677ca06faa5654dfd4c4fc45e49bc2d7a0d77d06024d1a8824a5b3253d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55b8677ca06faa5654dfd4c4fc45e49bc2d7a0d77d06024d1a8824a5b3253d7", kill_on_drop: false }`
[INFO] [stdout] a55b8677ca06faa5654dfd4c4fc45e49bc2d7a0d77d06024d1a8824a5b3253d7
[INFO] checking cargo-demangle-0.1.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate cargo-demangle 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate cargo-demangle 0.1.3 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 cargo-demangle 0.1.3
[INFO] finished tweaking crates.io crate cargo-demangle 0.1.3
[INFO] tweaked toml for crates.io crate cargo-demangle 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-demangle 0.1.3 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] c900f4dd363953d8a0dd9f3f3b4dd981c214e71379011110ae713acc2ff9dced
[INFO] running `Command { std: "docker" "start" "-a" "c900f4dd363953d8a0dd9f3f3b4dd981c214e71379011110ae713acc2ff9dced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c900f4dd363953d8a0dd9f3f3b4dd981c214e71379011110ae713acc2ff9dced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c900f4dd363953d8a0dd9f3f3b4dd981c214e71379011110ae713acc2ff9dced", kill_on_drop: false }`
[INFO] [stdout] c900f4dd363953d8a0dd9f3f3b4dd981c214e71379011110ae713acc2ff9dced
[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] 579c9400d604e8273d81956ad8c0de8941e363d5ca4adc1d88a0ddeed3263fa1
[INFO] running `Command { std: "docker" "start" "-a" "579c9400d604e8273d81956ad8c0de8941e363d5ca4adc1d88a0ddeed3263fa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking clap_lex v0.2.2
[INFO] [stderr]    Compiling indexmap v1.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v3.2.5
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking cargo-demangle v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "579c9400d604e8273d81956ad8c0de8941e363d5ca4adc1d88a0ddeed3263fa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "579c9400d604e8273d81956ad8c0de8941e363d5ca4adc1d88a0ddeed3263fa1", kill_on_drop: false }`
[INFO] [stdout] 579c9400d604e8273d81956ad8c0de8941e363d5ca4adc1d88a0ddeed3263fa1