[INFO] fetching crate trajectory 0.0.2...
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] crate trajectory 0.0.2 is already in cache
[INFO] checking trajectory-0.0.2 against master#ea6ab1bd845790fb31ba790d2c7aec898f89fe62 for pr-99880
[INFO] extracting crate trajectory 0.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate trajectory 0.0.2 on toolchain ea6ab1bd845790fb31ba790d2c7aec898f89fe62
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ea6ab1bd845790fb31ba790d2c7aec898f89fe62" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trajectory 0.0.2
[INFO] finished tweaking crates.io crate trajectory 0.0.2
[INFO] tweaked toml for crates.io crate trajectory 0.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate trajectory 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ea6ab1bd845790fb31ba790d2c7aec898f89fe62" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gnuplot v0.0.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+ea6ab1bd845790fb31ba790d2c7aec898f89fe62" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b6eb0a0d8106853778e1c935b7dfd6ebfdee0e494072c202a86b378d57fbe9e
[INFO] running `Command { std: "docker" "start" "-a" "4b6eb0a0d8106853778e1c935b7dfd6ebfdee0e494072c202a86b378d57fbe9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b6eb0a0d8106853778e1c935b7dfd6ebfdee0e494072c202a86b378d57fbe9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6eb0a0d8106853778e1c935b7dfd6ebfdee0e494072c202a86b378d57fbe9e", kill_on_drop: false }`
[INFO] [stdout] 4b6eb0a0d8106853778e1c935b7dfd6ebfdee0e494072c202a86b378d57fbe9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+ea6ab1bd845790fb31ba790d2c7aec898f89fe62" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ef23420bc13f33adcc80d4de39d6f9b0eb2b22c1576c4f00f8e9532e79f1b06
[INFO] running `Command { std: "docker" "start" "-a" "7ef23420bc13f33adcc80d4de39d6f9b0eb2b22c1576c4f00f8e9532e79f1b06", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking gnuplot v0.0.37
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking trajectory v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/plot.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fg.show();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/plot.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fg.show();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "7ef23420bc13f33adcc80d4de39d6f9b0eb2b22c1576c4f00f8e9532e79f1b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef23420bc13f33adcc80d4de39d6f9b0eb2b22c1576c4f00f8e9532e79f1b06", kill_on_drop: false }`
[INFO] [stdout] 7ef23420bc13f33adcc80d4de39d6f9b0eb2b22c1576c4f00f8e9532e79f1b06