[INFO] cloning repository https://github.com/sarcaustech/epub-index
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sarcaustech/epub-index" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarcaustech%2Fepub-index", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarcaustech%2Fepub-index'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ded43fa5ebdce00f9da6d3c938c1f014ce1f74c3
[INFO] checking sarcaustech/epub-index against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarcaustech%2Fepub-index" "/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/sarcaustech/epub-index 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 git repo https://github.com/sarcaustech/epub-index
[INFO] finished tweaking git repo https://github.com/sarcaustech/epub-index
[INFO] tweaked toml for git repo https://github.com/sarcaustech/epub-index written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sarcaustech/epub-index 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 epub v2.1.1
[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] 2a5a517c2b3cf9f02c74267a95d16a4e35724d6a9d39f5e8658eb6e3c90ff999
[INFO] running `Command { std: "docker" "start" "-a" "2a5a517c2b3cf9f02c74267a95d16a4e35724d6a9d39f5e8658eb6e3c90ff999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a5a517c2b3cf9f02c74267a95d16a4e35724d6a9d39f5e8658eb6e3c90ff999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a5a517c2b3cf9f02c74267a95d16a4e35724d6a9d39f5e8658eb6e3c90ff999", kill_on_drop: false }`
[INFO] [stdout] 2a5a517c2b3cf9f02c74267a95d16a4e35724d6a9d39f5e8658eb6e3c90ff999
[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] d298cc4daef9888b219b5753d15aef346b1aecbc52c62d9cbadf3b9c5104b0f3
[INFO] running `Command { std: "docker" "start" "-a" "d298cc4daef9888b219b5753d15aef346b1aecbc52c62d9cbadf3b9c5104b0f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]     Checking regex-syntax v0.7.3
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]     Checking xml-rs v0.8.15
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]    Compiling syn v2.0.24
[INFO] [stderr]     Checking regex-automata v0.3.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking epub v2.1.1
[INFO] [stderr]     Checking epub-index v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.56s
[INFO] running `Command { std: "docker" "inspect" "d298cc4daef9888b219b5753d15aef346b1aecbc52c62d9cbadf3b9c5104b0f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d298cc4daef9888b219b5753d15aef346b1aecbc52c62d9cbadf3b9c5104b0f3", kill_on_drop: false }`
[INFO] [stdout] d298cc4daef9888b219b5753d15aef346b1aecbc52c62d9cbadf3b9c5104b0f3
[INFO] checking sarcaustech/epub-index against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarcaustech%2Fepub-index" "/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/sarcaustech/epub-index 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 git repo https://github.com/sarcaustech/epub-index
[INFO] finished tweaking git repo https://github.com/sarcaustech/epub-index
[INFO] tweaked toml for git repo https://github.com/sarcaustech/epub-index written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sarcaustech/epub-index 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-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] 7a4d6b6f125345958be0d06f36f034c6984d2a76e0bf4a7ed6ada34f91cec652
[INFO] running `Command { std: "docker" "start" "-a" "7a4d6b6f125345958be0d06f36f034c6984d2a76e0bf4a7ed6ada34f91cec652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a4d6b6f125345958be0d06f36f034c6984d2a76e0bf4a7ed6ada34f91cec652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a4d6b6f125345958be0d06f36f034c6984d2a76e0bf4a7ed6ada34f91cec652", kill_on_drop: false }`
[INFO] [stdout] 7a4d6b6f125345958be0d06f36f034c6984d2a76e0bf4a7ed6ada34f91cec652
[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] 128d737a2aca745fdfb37fb9199cd6d09e4a0c33f82fea9a73ea7c416fcd69ee
[INFO] running `Command { std: "docker" "start" "-a" "128d737a2aca745fdfb37fb9199cd6d09e4a0c33f82fea9a73ea7c416fcd69ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]     Checking regex-syntax v0.7.3
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]     Checking xml-rs v0.8.15
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]    Compiling syn v2.0.24
[INFO] [stderr]     Checking regex-automata v0.3.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking epub v2.1.1
[INFO] [stderr]     Checking epub-index v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.15s
[INFO] running `Command { std: "docker" "inspect" "128d737a2aca745fdfb37fb9199cd6d09e4a0c33f82fea9a73ea7c416fcd69ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "128d737a2aca745fdfb37fb9199cd6d09e4a0c33f82fea9a73ea7c416fcd69ee", kill_on_drop: false }`
[INFO] [stdout] 128d737a2aca745fdfb37fb9199cd6d09e4a0c33f82fea9a73ea7c416fcd69ee