[INFO] cloning repository https://github.com/RedDocMD/huffman [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RedDocMD/huffman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fhuffman", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fhuffman'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ac3197a415e59cd288a61746c778d75cff24cb00 [INFO] checking RedDocMD/huffman against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fhuffman" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RedDocMD/huffman on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RedDocMD/huffman [INFO] finished tweaking git repo https://github.com/RedDocMD/huffman [INFO] tweaked toml for git repo https://github.com/RedDocMD/huffman written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/RedDocMD/huffman 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bf81669329fe400fd367420552be56cbabaf2524040d2ea4ff378550a16bf312 [INFO] running `Command { std: "docker" "start" "-a" "bf81669329fe400fd367420552be56cbabaf2524040d2ea4ff378550a16bf312", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bf81669329fe400fd367420552be56cbabaf2524040d2ea4ff378550a16bf312", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf81669329fe400fd367420552be56cbabaf2524040d2ea4ff378550a16bf312", kill_on_drop: false }` [INFO] [stdout] bf81669329fe400fd367420552be56cbabaf2524040d2ea4ff378550a16bf312 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4117c3294f0f6878ceaa7527d68f2825f4a7c72c0fbfa335438c67d2e31921cd [INFO] running `Command { std: "docker" "start" "-a" "4117c3294f0f6878ceaa7527d68f2825f4a7c72c0fbfa335438c67d2e31921cd", kill_on_drop: false }` [INFO] [stderr] Checking huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `tree` is never read [INFO] [stdout] --> src/lib.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 165 | pub struct HuffmanCode { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 166 | tree: HuffmanCodeTree, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HuffmanCode` 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `tree` is never read [INFO] [stdout] --> src/lib.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 165 | pub struct HuffmanCode { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 166 | tree: HuffmanCodeTree, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HuffmanCode` 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `Command { std: "docker" "inspect" "4117c3294f0f6878ceaa7527d68f2825f4a7c72c0fbfa335438c67d2e31921cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4117c3294f0f6878ceaa7527d68f2825f4a7c72c0fbfa335438c67d2e31921cd", kill_on_drop: false }` [INFO] [stdout] 4117c3294f0f6878ceaa7527d68f2825f4a7c72c0fbfa335438c67d2e31921cd [INFO] checking RedDocMD/huffman against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fhuffman" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RedDocMD/huffman on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RedDocMD/huffman [INFO] finished tweaking git repo https://github.com/RedDocMD/huffman [INFO] tweaked toml for git repo https://github.com/RedDocMD/huffman written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/RedDocMD/huffman 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d861d4f2e00bc0eabe88910b49122c6485b36f34b7675a666b4b0e6acc5a253f [INFO] running `Command { std: "docker" "start" "-a" "d861d4f2e00bc0eabe88910b49122c6485b36f34b7675a666b4b0e6acc5a253f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d861d4f2e00bc0eabe88910b49122c6485b36f34b7675a666b4b0e6acc5a253f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d861d4f2e00bc0eabe88910b49122c6485b36f34b7675a666b4b0e6acc5a253f", kill_on_drop: false }` [INFO] [stdout] d861d4f2e00bc0eabe88910b49122c6485b36f34b7675a666b4b0e6acc5a253f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f2e615b45e39bcdae827d5ba52feb849cfe9d1860d3f85823d880521cfa05351 [INFO] running `Command { std: "docker" "start" "-a" "f2e615b45e39bcdae827d5ba52feb849cfe9d1860d3f85823d880521cfa05351", kill_on_drop: false }` [INFO] [stderr] Checking huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `tree` is never read [INFO] [stdout] --> src/lib.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 165 | pub struct HuffmanCode { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 166 | tree: HuffmanCodeTree, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HuffmanCode` 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `tree` is never read [INFO] [stdout] --> src/lib.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 165 | pub struct HuffmanCode { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 166 | tree: HuffmanCodeTree, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HuffmanCode` 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s [INFO] running `Command { std: "docker" "inspect" "f2e615b45e39bcdae827d5ba52feb849cfe9d1860d3f85823d880521cfa05351", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f2e615b45e39bcdae827d5ba52feb849cfe9d1860d3f85823d880521cfa05351", kill_on_drop: false }` [INFO] [stdout] f2e615b45e39bcdae827d5ba52feb849cfe9d1860d3f85823d880521cfa05351