[INFO] cloning repository https://github.com/RedDocMD/undertaker [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RedDocMD/undertaker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fundertaker", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fundertaker'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cde5821445374d6284333f9e3f9e5bf0230b7799 [INFO] checking RedDocMD/undertaker against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fundertaker" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RedDocMD/undertaker on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RedDocMD/undertaker [INFO] finished tweaking git repo https://github.com/RedDocMD/undertaker [INFO] tweaked toml for git repo https://github.com/RedDocMD/undertaker written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/RedDocMD/undertaker 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.96 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1630d35408088ae99d9f68f12d417f09ccf2133d7f9a1fcb96b7c715e8057238 [INFO] running `Command { std: "docker" "start" "-a" "1630d35408088ae99d9f68f12d417f09ccf2133d7f9a1fcb96b7c715e8057238", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1630d35408088ae99d9f68f12d417f09ccf2133d7f9a1fcb96b7c715e8057238", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1630d35408088ae99d9f68f12d417f09ccf2133d7f9a1fcb96b7c715e8057238", kill_on_drop: false }` [INFO] [stdout] 1630d35408088ae99d9f68f12d417f09ccf2133d7f9a1fcb96b7c715e8057238 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e3a38c9454c1fc57c1f827f3bb40fefc81f501e283d7a87569ef9a19ec495d7f [INFO] running `Command { std: "docker" "start" "-a" "e3a38c9454c1fc57c1f827f3bb40fefc81f501e283d7a87569ef9a19ec495d7f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.96 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking quote v1.0.9 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking colored v2.0.0 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Checking undertaker v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/uses.rs:282:29 [INFO] [stdout] | [INFO] [stdout] 282 | pub struct PathExtendFailed(String); [INFO] [stdout] | ---------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `PathExtendFailed` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message contains an unused formatting placeholder [INFO] [stdout] --> src/discover.rs:422:64 [INFO] [stdout] | [INFO] [stdout] 422 | _ => unreachable!("invalid float suffix: \"{}\""), [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: this message is not used as a format string when given without arguments, but will be in Rust 2021 [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add the missing argument [INFO] [stdout] | [INFO] [stdout] 422 | _ => unreachable!("invalid float suffix: \"{}\"", ...), [INFO] [stdout] | +++++ [INFO] [stdout] help: or add a "{}" format string to use the message literally [INFO] [stdout] | [INFO] [stdout] 422 | _ => unreachable!("{}", "invalid float suffix: \"{}\""), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/uses.rs:282:29 [INFO] [stdout] | [INFO] [stdout] 282 | pub struct PathExtendFailed(String); [INFO] [stdout] | ---------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `PathExtendFailed` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message contains an unused formatting placeholder [INFO] [stdout] --> src/discover.rs:422:64 [INFO] [stdout] | [INFO] [stdout] 422 | _ => unreachable!("invalid float suffix: \"{}\""), [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: this message is not used as a format string when given without arguments, but will be in Rust 2021 [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add the missing argument [INFO] [stdout] | [INFO] [stdout] 422 | _ => unreachable!("invalid float suffix: \"{}\"", ...), [INFO] [stdout] | +++++ [INFO] [stdout] help: or add a "{}" format string to use the message literally [INFO] [stdout] | [INFO] [stdout] 422 | _ => unreachable!("{}", "invalid float suffix: \"{}\""), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.20s [INFO] running `Command { std: "docker" "inspect" "e3a38c9454c1fc57c1f827f3bb40fefc81f501e283d7a87569ef9a19ec495d7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3a38c9454c1fc57c1f827f3bb40fefc81f501e283d7a87569ef9a19ec495d7f", kill_on_drop: false }` [INFO] [stdout] e3a38c9454c1fc57c1f827f3bb40fefc81f501e283d7a87569ef9a19ec495d7f