[INFO] cloning repository https://github.com/j0kabbalah/seven-seg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j0kabbalah/seven-seg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0kabbalah%2Fseven-seg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0kabbalah%2Fseven-seg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75fbaced91abfa436f63fef3c742f437d32e8232
[INFO] checking j0kabbalah/seven-seg against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0kabbalah%2Fseven-seg" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j0kabbalah/seven-seg 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] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/j0kabbalah/seven-seg
[INFO] finished tweaking git repo https://github.com/j0kabbalah/seven-seg
[INFO] tweaked toml for git repo https://github.com/j0kabbalah/seven-seg written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/j0kabbalah/seven-seg 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 embedded-hal v1.0.0-alpha.9
[INFO] [stderr]   Downloaded embedded-hal-nb v1.0.0-alpha.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d0f6287aa307cbed2cf0842d375bb1616bc5c2aa69f28e4cd1b3bb2f5675173f
[INFO] running `Command { std: "docker" "start" "-a" "d0f6287aa307cbed2cf0842d375bb1616bc5c2aa69f28e4cd1b3bb2f5675173f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0f6287aa307cbed2cf0842d375bb1616bc5c2aa69f28e4cd1b3bb2f5675173f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0f6287aa307cbed2cf0842d375bb1616bc5c2aa69f28e4cd1b3bb2f5675173f", kill_on_drop: false }`
[INFO] [stdout] d0f6287aa307cbed2cf0842d375bb1616bc5c2aa69f28e4cd1b3bb2f5675173f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3a9d73e1a8f584f6e8eb2bf8a689214057c041003c71c5382118a4c54f956586
[INFO] running `Command { std: "docker" "start" "-a" "3a9d73e1a8f584f6e8eb2bf8a689214057c041003c71c5382118a4c54f956586", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.9
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking spin_sleep v1.1.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0-alpha.1
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking rppal v0.14.1
[INFO] [stderr]     Checking ctrlc v3.4.0
[INFO] [stderr]     Checking seven-seg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "3a9d73e1a8f584f6e8eb2bf8a689214057c041003c71c5382118a4c54f956586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a9d73e1a8f584f6e8eb2bf8a689214057c041003c71c5382118a4c54f956586", kill_on_drop: false }`
[INFO] [stdout] 3a9d73e1a8f584f6e8eb2bf8a689214057c041003c71c5382118a4c54f956586
[INFO] checking j0kabbalah/seven-seg against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0kabbalah%2Fseven-seg" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j0kabbalah/seven-seg 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] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/j0kabbalah/seven-seg
[INFO] finished tweaking git repo https://github.com/j0kabbalah/seven-seg
[INFO] tweaked toml for git repo https://github.com/j0kabbalah/seven-seg written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/j0kabbalah/seven-seg 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1d64cd76a2de0750f6d3bd368fb0748fffcd917e97e7471155c1934e451b346e
[INFO] running `Command { std: "docker" "start" "-a" "1d64cd76a2de0750f6d3bd368fb0748fffcd917e97e7471155c1934e451b346e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d64cd76a2de0750f6d3bd368fb0748fffcd917e97e7471155c1934e451b346e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d64cd76a2de0750f6d3bd368fb0748fffcd917e97e7471155c1934e451b346e", kill_on_drop: false }`
[INFO] [stdout] 1d64cd76a2de0750f6d3bd368fb0748fffcd917e97e7471155c1934e451b346e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] aea0f3f123536dfe3322f996667826784b0f19dfcdffdf4b4364587011f91633
[INFO] running `Command { std: "docker" "start" "-a" "aea0f3f123536dfe3322f996667826784b0f19dfcdffdf4b4364587011f91633", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.9
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking spin_sleep v1.1.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0-alpha.1
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking rppal v0.14.1
[INFO] [stderr]     Checking ctrlc v3.4.0
[INFO] [stderr]     Checking seven-seg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `Command { std: "docker" "inspect" "aea0f3f123536dfe3322f996667826784b0f19dfcdffdf4b4364587011f91633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea0f3f123536dfe3322f996667826784b0f19dfcdffdf4b4364587011f91633", kill_on_drop: false }`
[INFO] [stdout] aea0f3f123536dfe3322f996667826784b0f19dfcdffdf4b4364587011f91633