[INFO] fetching crate cargo-brrrr 0.1.0...
[INFO] checking cargo-brrrr-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate cargo-brrrr 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cargo-brrrr 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 cargo-brrrr 0.1.0
[INFO] finished tweaking crates.io crate cargo-brrrr 0.1.0
[INFO] tweaked toml for crates.io crate cargo-brrrr 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-brrrr 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] warning: file `/workspace/builds/worker-6-tc1/source/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `cargo-br`
[INFO] [stderr]   * `bin` target `cargo-brr`
[INFO] [stderr]   * `bin` target `cargo-brrr`
[INFO] [stderr]   * `bin` target `cargo-brrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrrr`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.1.5
[INFO] [stderr]   Downloaded cc v1.0.58
[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] 8f0490b9212b327502532ad42fc7aa5f798958764a6e7c702d4c905e5d5e484e
[INFO] running `Command { std: "docker" "start" "-a" "8f0490b9212b327502532ad42fc7aa5f798958764a6e7c702d4c905e5d5e484e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f0490b9212b327502532ad42fc7aa5f798958764a6e7c702d4c905e5d5e484e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f0490b9212b327502532ad42fc7aa5f798958764a6e7c702d4c905e5d5e484e", kill_on_drop: false }`
[INFO] [stdout] 8f0490b9212b327502532ad42fc7aa5f798958764a6e7c702d4c905e5d5e484e
[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] a55957d381834cea50c459dba15f65d26094b58594f46ddb1854480b8cb59484
[INFO] running `Command { std: "docker" "start" "-a" "a55957d381834cea50c459dba15f65d26094b58594f46ddb1854480b8cb59484", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `cargo-br`
[INFO] [stderr]   * `bin` target `cargo-brr`
[INFO] [stderr]   * `bin` target `cargo-brrr`
[INFO] [stderr]   * `bin` target `cargo-brrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrrr`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking ctrlc v3.1.5
[INFO] [stderr]     Checking cargo-brrrr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.24s
[INFO] running `Command { std: "docker" "inspect" "a55957d381834cea50c459dba15f65d26094b58594f46ddb1854480b8cb59484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55957d381834cea50c459dba15f65d26094b58594f46ddb1854480b8cb59484", kill_on_drop: false }`
[INFO] [stdout] a55957d381834cea50c459dba15f65d26094b58594f46ddb1854480b8cb59484
[INFO] checking cargo-brrrr-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate cargo-brrrr 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate cargo-brrrr 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 cargo-brrrr 0.1.0
[INFO] finished tweaking crates.io crate cargo-brrrr 0.1.0
[INFO] tweaked toml for crates.io crate cargo-brrrr 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-brrrr 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] [stderr] warning: file `/workspace/builds/worker-6-tc2/source/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `cargo-br`
[INFO] [stderr]   * `bin` target `cargo-brr`
[INFO] [stderr]   * `bin` target `cargo-brrr`
[INFO] [stderr]   * `bin` target `cargo-brrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrrr`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c3a1d947201e349f8d7babaa6a5285d9b17dd91f8954cb58f287c30b1df82b79
[INFO] running `Command { std: "docker" "start" "-a" "c3a1d947201e349f8d7babaa6a5285d9b17dd91f8954cb58f287c30b1df82b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3a1d947201e349f8d7babaa6a5285d9b17dd91f8954cb58f287c30b1df82b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a1d947201e349f8d7babaa6a5285d9b17dd91f8954cb58f287c30b1df82b79", kill_on_drop: false }`
[INFO] [stdout] c3a1d947201e349f8d7babaa6a5285d9b17dd91f8954cb58f287c30b1df82b79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 040c4452e3984fdad195a2b35adfa54432e2032f1f861598aa993a592ef732bd
[INFO] running `Command { std: "docker" "start" "-a" "040c4452e3984fdad195a2b35adfa54432e2032f1f861598aa993a592ef732bd", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `cargo-br`
[INFO] [stderr]   * `bin` target `cargo-brr`
[INFO] [stderr]   * `bin` target `cargo-brrr`
[INFO] [stderr]   * `bin` target `cargo-brrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrrr`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking ctrlc v3.1.5
[INFO] [stderr]     Checking cargo-brrrr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "040c4452e3984fdad195a2b35adfa54432e2032f1f861598aa993a592ef732bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "040c4452e3984fdad195a2b35adfa54432e2032f1f861598aa993a592ef732bd", kill_on_drop: false }`
[INFO] [stdout] 040c4452e3984fdad195a2b35adfa54432e2032f1f861598aa993a592ef732bd