[INFO] fetching crate futility 0.1.1...
[INFO] checking futility-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate futility 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate futility 0.1.1 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 futility 0.1.1
[INFO] finished tweaking crates.io crate futility 0.1.1
[INFO] tweaked toml for crates.io crate futility 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate futility 0.1.1 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 thread_local v1.1.4
[INFO] [stderr]   Downloaded tracing-core v0.1.22
[INFO] [stderr]   Downloaded quote v1.0.15
[INFO] [stderr]   Downloaded futility-try-catch v0.1.1
[INFO] [stderr]   Downloaded once_cell v1.9.0
[INFO] [stderr]   Downloaded eyre v0.6.6
[INFO] [stderr]   Downloaded owo-colors v3.2.0
[INFO] [stderr]   Downloaded backtrace v0.3.64
[INFO] [stderr]   Downloaded color-spantrace v0.2.0
[INFO] [stderr]   Downloaded tracing v0.1.31
[INFO] [stderr]   Downloaded libc v0.2.119
[INFO] [stderr]   Downloaded color-eyre v0.6.0
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.9
[INFO] [stderr]   Downloaded syn v1.0.86
[INFO] [stderr]   Downloaded pin-project-lite v0.2.8
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3968655416bea86f26c37222df40c5e2f13ac33793ce939c70fcec09c2921ab6
[INFO] running `Command { std: "docker" "start" "-a" "3968655416bea86f26c37222df40c5e2f13ac33793ce939c70fcec09c2921ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3968655416bea86f26c37222df40c5e2f13ac33793ce939c70fcec09c2921ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3968655416bea86f26c37222df40c5e2f13ac33793ce939c70fcec09c2921ab6", kill_on_drop: false }`
[INFO] [stdout] 3968655416bea86f26c37222df40c5e2f13ac33793ce939c70fcec09c2921ab6
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b2515d3b88eb290409e8bcf4878d49e6b22a646e4d9a3b3811269aa9ec93d4d
[INFO] running `Command { std: "docker" "start" "-a" "8b2515d3b88eb290409e8bcf4878d49e6b22a646e4d9a3b3811269aa9ec93d4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling eyre v0.6.6
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking tracing v0.1.31
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.9
[INFO] [stderr]     Checking owo-colors v3.2.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking color-eyre v0.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling futility-try-catch v0.1.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking futility v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.51s
[INFO] running `Command { std: "docker" "inspect" "8b2515d3b88eb290409e8bcf4878d49e6b22a646e4d9a3b3811269aa9ec93d4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b2515d3b88eb290409e8bcf4878d49e6b22a646e4d9a3b3811269aa9ec93d4d", kill_on_drop: false }`
[INFO] [stdout] 8b2515d3b88eb290409e8bcf4878d49e6b22a646e4d9a3b3811269aa9ec93d4d
[INFO] checking futility-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate futility 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate futility 0.1.1 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 futility 0.1.1
[INFO] finished tweaking crates.io crate futility 0.1.1
[INFO] tweaked toml for crates.io crate futility 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate futility 0.1.1 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-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09d2d7bad9bfe49454a86dc0df3642cf072f039c911e0baa81fc3c7c5b3a98fa
[INFO] running `Command { std: "docker" "start" "-a" "09d2d7bad9bfe49454a86dc0df3642cf072f039c911e0baa81fc3c7c5b3a98fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09d2d7bad9bfe49454a86dc0df3642cf072f039c911e0baa81fc3c7c5b3a98fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09d2d7bad9bfe49454a86dc0df3642cf072f039c911e0baa81fc3c7c5b3a98fa", kill_on_drop: false }`
[INFO] [stdout] 09d2d7bad9bfe49454a86dc0df3642cf072f039c911e0baa81fc3c7c5b3a98fa
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4269ceb073a3d31abc567b82665656c3f0aaebc6f9e939eaa9bc4c97a5756f3
[INFO] running `Command { std: "docker" "start" "-a" "a4269ceb073a3d31abc567b82665656c3f0aaebc6f9e939eaa9bc4c97a5756f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling eyre v0.6.6
[INFO] [stderr]     Checking tracing v0.1.31
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.9
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking owo-colors v3.2.0
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling futility-try-catch v0.1.1
[INFO] [stderr]     Checking color-eyre v0.6.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking futility v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.63s
[INFO] running `Command { std: "docker" "inspect" "a4269ceb073a3d31abc567b82665656c3f0aaebc6f9e939eaa9bc4c97a5756f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4269ceb073a3d31abc567b82665656c3f0aaebc6f9e939eaa9bc4c97a5756f3", kill_on_drop: false }`
[INFO] [stdout] a4269ceb073a3d31abc567b82665656c3f0aaebc6f9e939eaa9bc4c97a5756f3