[INFO] cloning repository https://github.com/kneasle/cc-method-lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kneasle/cc-method-lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkneasle%2Fcc-method-lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkneasle%2Fcc-method-lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c53aa689b85d4324e3cff96d360b1c9873991ee
[INFO] checking kneasle/cc-method-lib against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkneasle%2Fcc-method-lib" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kneasle/cc-method-lib 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/kneasle/cc-method-lib
[INFO] finished tweaking git repo https://github.com/kneasle/cc-method-lib
[INFO] tweaked toml for git repo https://github.com/kneasle/cc-method-lib written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kneasle/cc-method-lib 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 shortlist v0.2.0
[INFO] [stderr]   Downloaded minidom v0.13.0
[INFO] [stderr]   Downloaded bellframe v0.3.0-alpha.1
[INFO] [stderr]   Downloaded quick-xml v0.20.0
[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] 9003651f91ea0238e6a8bf01eafc397d77921cc1b1d40778807ed4093258e17d
[INFO] running `Command { std: "docker" "start" "-a" "9003651f91ea0238e6a8bf01eafc397d77921cc1b1d40778807ed4093258e17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9003651f91ea0238e6a8bf01eafc397d77921cc1b1d40778807ed4093258e17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9003651f91ea0238e6a8bf01eafc397d77921cc1b1d40778807ed4093258e17d", kill_on_drop: false }`
[INFO] [stdout] 9003651f91ea0238e6a8bf01eafc397d77921cc1b1d40778807ed4093258e17d
[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] 9145255f854194533f52ce8f5fe0c2f0ffb155da959313c60d39e186ced5101c
[INFO] running `Command { std: "docker" "start" "-a" "9145255f854194533f52ce8f5fe0c2f0ffb155da959313c60d39e186ced5101c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling argh_shared v0.1.5
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking edit-distance v2.1.0
[INFO] [stderr]     Checking shortlist v0.2.0
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking minidom v0.13.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling argh_derive v0.1.5
[INFO] [stderr]     Checking argh v0.1.5
[INFO] [stderr]     Checking bellframe v0.3.0-alpha.1
[INFO] [stderr]     Checking cc-method-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.84s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "9145255f854194533f52ce8f5fe0c2f0ffb155da959313c60d39e186ced5101c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9145255f854194533f52ce8f5fe0c2f0ffb155da959313c60d39e186ced5101c", kill_on_drop: false }`
[INFO] [stdout] 9145255f854194533f52ce8f5fe0c2f0ffb155da959313c60d39e186ced5101c
[INFO] checking kneasle/cc-method-lib against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkneasle%2Fcc-method-lib" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kneasle/cc-method-lib 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/kneasle/cc-method-lib
[INFO] finished tweaking git repo https://github.com/kneasle/cc-method-lib
[INFO] tweaked toml for git repo https://github.com/kneasle/cc-method-lib written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kneasle/cc-method-lib 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-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] e9f4466bb6f0693447eec22de49c24c3da688617b77657bb6176f7445dd5dfc8
[INFO] running `Command { std: "docker" "start" "-a" "e9f4466bb6f0693447eec22de49c24c3da688617b77657bb6176f7445dd5dfc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9f4466bb6f0693447eec22de49c24c3da688617b77657bb6176f7445dd5dfc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f4466bb6f0693447eec22de49c24c3da688617b77657bb6176f7445dd5dfc8", kill_on_drop: false }`
[INFO] [stdout] e9f4466bb6f0693447eec22de49c24c3da688617b77657bb6176f7445dd5dfc8
[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] 5393b9875ba58e4cc832b62c9a13a397649c6453fc943ee679b37bf2f4124a31
[INFO] running `Command { std: "docker" "start" "-a" "5393b9875ba58e4cc832b62c9a13a397649c6453fc943ee679b37bf2f4124a31", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling argh_shared v0.1.5
[INFO] [stderr]     Checking shortlist v0.2.0
[INFO] [stderr]     Checking edit-distance v2.1.0
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking minidom v0.13.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling argh_derive v0.1.5
[INFO] [stderr]     Checking argh v0.1.5
[INFO] [stderr]     Checking bellframe v0.3.0-alpha.1
[INFO] [stderr]     Checking cc-method-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.27s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "5393b9875ba58e4cc832b62c9a13a397649c6453fc943ee679b37bf2f4124a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5393b9875ba58e4cc832b62c9a13a397649c6453fc943ee679b37bf2f4124a31", kill_on_drop: false }`
[INFO] [stdout] 5393b9875ba58e4cc832b62c9a13a397649c6453fc943ee679b37bf2f4124a31