[INFO] fetching crate daisycalc 1.1.7...
[INFO] checking daisycalc-1.1.7 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate daisycalc 1.1.7 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate daisycalc 1.1.7 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate daisycalc 1.1.7
[INFO] finished tweaking crates.io crate daisycalc 1.1.7
[INFO] tweaked toml for crates.io crate daisycalc 1.1.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate daisycalc 1.1.7 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_spanned v0.6.2
[INFO] [stderr]   Downloaded toml v0.7.4
[INFO] [stderr]   Downloaded winnow v0.4.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cf850edeb16a1ff5d63080cf6ff14bb6c694b93b53cf7079950241575dbe2d0
[INFO] running `Command { std: "docker" "start" "-a" "3cf850edeb16a1ff5d63080cf6ff14bb6c694b93b53cf7079950241575dbe2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cf850edeb16a1ff5d63080cf6ff14bb6c694b93b53cf7079950241575dbe2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf850edeb16a1ff5d63080cf6ff14bb6c694b93b53cf7079950241575dbe2d0", kill_on_drop: false }`
[INFO] [stdout] 3cf850edeb16a1ff5d63080cf6ff14bb6c694b93b53cf7079950241575dbe2d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2438ee943f7eadf613a67029bd7a72508dae7c7e2375d140b5b6aec2d3dec2e
[INFO] running `Command { std: "docker" "start" "-a" "e2438ee943f7eadf613a67029bd7a72508dae7c7e2375d140b5b6aec2d3dec2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling winnow v0.4.6
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking num-iter v0.1.43
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling serde_spanned v0.6.2
[INFO] [stderr]    Compiling toml_datetime v0.6.2
[INFO] [stderr]    Compiling toml_edit v0.19.10
[INFO] [stderr]    Compiling toml v0.7.4
[INFO] [stderr]    Compiling daisycalc v1.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `log` is never used
[INFO] [stdout]   --> src/quantity/scalar/scalar.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait ScalarBase:
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn log(&self, base: Self) -> Option<Self>;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `log` is never used
[INFO] [stdout]   --> src/quantity/scalar/scalar.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait ScalarBase:
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn log(&self, base: Self) -> Option<Self>;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.34s
[INFO] running `Command { std: "docker" "inspect" "e2438ee943f7eadf613a67029bd7a72508dae7c7e2375d140b5b6aec2d3dec2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2438ee943f7eadf613a67029bd7a72508dae7c7e2375d140b5b6aec2d3dec2e", kill_on_drop: false }`
[INFO] [stdout] e2438ee943f7eadf613a67029bd7a72508dae7c7e2375d140b5b6aec2d3dec2e