[INFO] fetching crate arrowhead 0.1.0...
[INFO] checking arrowhead-0.1.0 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate arrowhead 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate arrowhead 0.1.0 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arrowhead 0.1.0
[INFO] finished tweaking crates.io crate arrowhead 0.1.0
[INFO] tweaked toml for crates.io crate arrowhead 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96f8b43a87429ab10f784c6b6605b1041fc8e91d1cd8624b2ad8ab0b2b33cc97
[INFO] running `Command { std: "docker" "start" "-a" "96f8b43a87429ab10f784c6b6605b1041fc8e91d1cd8624b2ad8ab0b2b33cc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96f8b43a87429ab10f784c6b6605b1041fc8e91d1cd8624b2ad8ab0b2b33cc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96f8b43a87429ab10f784c6b6605b1041fc8e91d1cd8624b2ad8ab0b2b33cc97", kill_on_drop: false }`
[INFO] [stdout] 96f8b43a87429ab10f784c6b6605b1041fc8e91d1cd8624b2ad8ab0b2b33cc97
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1ddbf7fcff9fe2e1f9bd88910d711f680f3db266ee24d827cdcce3ec725a7fc
[INFO] running `Command { std: "docker" "start" "-a" "d1ddbf7fcff9fe2e1f9bd88910d711f680f3db266ee24d827cdcce3ec725a7fc", kill_on_drop: false }`
[INFO] [stderr]     Checking arrowhead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Records` is never constructed
[INFO] [stdout]   --> src/srv.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Records(Vec<Record>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `System` is never constructed
[INFO] [stdout]  --> src/sys.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct System {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Records` is never constructed
[INFO] [stdout]   --> src/sys.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Records(Vec<Record>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Records` is never constructed
[INFO] [stdout]   --> src/srv.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Records(Vec<Record>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `System` is never constructed
[INFO] [stdout]  --> src/sys.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct System {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Records` is never constructed
[INFO] [stdout]   --> src/sys.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Records(Vec<Record>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "d1ddbf7fcff9fe2e1f9bd88910d711f680f3db266ee24d827cdcce3ec725a7fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ddbf7fcff9fe2e1f9bd88910d711f680f3db266ee24d827cdcce3ec725a7fc", kill_on_drop: false }`
[INFO] [stdout] d1ddbf7fcff9fe2e1f9bd88910d711f680f3db266ee24d827cdcce3ec725a7fc
[INFO] checking arrowhead-0.1.0 against try#6a5749073f2ebf59d7740d30e50a932a85756ee7 for pr-127655
[INFO] extracting crate arrowhead 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate arrowhead 0.1.0 on toolchain 6a5749073f2ebf59d7740d30e50a932a85756ee7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arrowhead 0.1.0
[INFO] finished tweaking crates.io crate arrowhead 0.1.0
[INFO] tweaked toml for crates.io crate arrowhead 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dadb14786c3593067fe659f54779c86e561954bf6662d390287a5591a53e7226
[INFO] running `Command { std: "docker" "start" "-a" "dadb14786c3593067fe659f54779c86e561954bf6662d390287a5591a53e7226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dadb14786c3593067fe659f54779c86e561954bf6662d390287a5591a53e7226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dadb14786c3593067fe659f54779c86e561954bf6662d390287a5591a53e7226", kill_on_drop: false }`
[INFO] [stdout] dadb14786c3593067fe659f54779c86e561954bf6662d390287a5591a53e7226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b0c79c858dad663e09c575c33646448326a0f9b62c24c507fee2f76d9f85f05
[INFO] running `Command { std: "docker" "start" "-a" "7b0c79c858dad663e09c575c33646448326a0f9b62c24c507fee2f76d9f85f05", kill_on_drop: false }`
[INFO] [stderr]     Checking arrowhead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Records` is never constructed
[INFO] [stdout]   --> src/srv.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Records(Vec<Record>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Records` is never constructed
[INFO] [stdout]   --> src/srv.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Records(Vec<Record>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `System` is never constructed
[INFO] [stdout]  --> src/sys.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct System {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `System` is never constructed
[INFO] [stdout]  --> src/sys.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct System {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Records` is never constructed
[INFO] [stdout]   --> src/sys.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Records(Vec<Record>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Records` is never constructed
[INFO] [stdout]   --> src/sys.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Records(Vec<Record>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "7b0c79c858dad663e09c575c33646448326a0f9b62c24c507fee2f76d9f85f05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b0c79c858dad663e09c575c33646448326a0f9b62c24c507fee2f76d9f85f05", kill_on_drop: false }`
[INFO] [stdout] 7b0c79c858dad663e09c575c33646448326a0f9b62c24c507fee2f76d9f85f05
