[INFO] fetching crate lognplot 0.1.0...
[INFO] checking lognplot-0.1.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate lognplot 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate lognplot 0.1.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lognplot 0.1.0
[INFO] finished tweaking crates.io crate lognplot 0.1.0
[INFO] tweaked toml for crates.io crate lognplot 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate lognplot 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cairo-rs v0.7.1
[INFO] [stderr]   Downloaded mio v0.6.20
[INFO] [stderr]   Downloaded cairo-sys-rs v0.9.0
[INFO] [stderr]   Downloaded half v1.4.0
[INFO] [stderr]   Downloaded simple_logger v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 609c1a4b96c68762760a5dcc20b01c1147b7222a632d682302ce036a6dbb2730
[INFO] running `Command { std: "docker" "start" "-a" "609c1a4b96c68762760a5dcc20b01c1147b7222a632d682302ce036a6dbb2730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "609c1a4b96c68762760a5dcc20b01c1147b7222a632d682302ce036a6dbb2730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "609c1a4b96c68762760a5dcc20b01c1147b7222a632d682302ce036a6dbb2730", kill_on_drop: false }`
[INFO] [stdout] 609c1a4b96c68762760a5dcc20b01c1147b7222a632d682302ce036a6dbb2730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6823b011fe2ef8e5b2dace6c3e555e9a700fc00dd3755bf781c1857e31d1f459
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6823b011fe2ef8e5b2dace6c3e555e9a700fc00dd3755bf781c1857e31d1f459", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking colored v1.9.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking simple_logger v1.3.0
[INFO] [stderr]     Checking lognplot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Duration`
[INFO] [stdout]  --> src/time/duration.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Duration {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LogMetrics`
[INFO] [stdout]  --> src/tsdb/logrecords.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct LogMetrics {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Duration`
[INFO] [stdout]  --> src/time/duration.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Duration {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LogMetrics`
[INFO] [stdout]  --> src/tsdb/logrecords.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct LogMetrics {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.66s
[INFO] running `Command { std: "docker" "inspect" "6823b011fe2ef8e5b2dace6c3e555e9a700fc00dd3755bf781c1857e31d1f459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6823b011fe2ef8e5b2dace6c3e555e9a700fc00dd3755bf781c1857e31d1f459", kill_on_drop: false }`
[INFO] [stdout] 6823b011fe2ef8e5b2dace6c3e555e9a700fc00dd3755bf781c1857e31d1f459