[INFO] fetching crate thurgood 0.2.1...
[INFO] checking thurgood-0.2.1 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate thurgood 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate thurgood 0.2.1 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate thurgood 0.2.1
[INFO] finished tweaking crates.io crate thurgood 0.2.1
[INFO] tweaked toml for crates.io crate thurgood 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.1)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.5)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83ea9ff1ab2d298a4ddb689ea16728dc2a8af4694b59cbb3f8ca82cd5feec6fb
[INFO] running `Command { std: "docker" "start" "-a" "83ea9ff1ab2d298a4ddb689ea16728dc2a8af4694b59cbb3f8ca82cd5feec6fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83ea9ff1ab2d298a4ddb689ea16728dc2a8af4694b59cbb3f8ca82cd5feec6fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83ea9ff1ab2d298a4ddb689ea16728dc2a8af4694b59cbb3f8ca82cd5feec6fb", kill_on_drop: false }`
[INFO] [stdout] 83ea9ff1ab2d298a4ddb689ea16728dc2a8af4694b59cbb3f8ca82cd5feec6fb
[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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8372f7a174328e72e5341310dd2b91380fe832d358bae5af1547e0f4d04a0817
[INFO] running `Command { std: "docker" "start" "-a" "8372f7a174328e72e5341310dd2b91380fe832d358bae5af1547e0f4d04a0817", kill_on_drop: false }`
[INFO] [stderr]     Checking thurgood v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `ezset` is never used
[INFO] [stdout]  --> src/rc/../inner/helper.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ---------- method in this trait
[INFO] [stdout] 7 |         fn ezset<K, V>(&mut self, key: K, value: V) where K: AsRef<str>, V: Into<Value>;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `ezset` is never used
[INFO] [stdout]  --> src/arc/../inner/helper.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ---------- method in this trait
[INFO] [stdout] 7 |         fn ezset<K, V>(&mut self, key: K, value: V) where K: AsRef<str>, V: Into<Value>;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `ezset` is never used
[INFO] [stdout]  --> src/rc/../inner/helper.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ---------- method in this trait
[INFO] [stdout] 7 |         fn ezset<K, V>(&mut self, key: K, value: V) where K: AsRef<str>, V: Into<Value>;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `ezset` is never used
[INFO] [stdout]  --> src/arc/../inner/helper.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ---------- method in this trait
[INFO] [stdout] 7 |         fn ezset<K, V>(&mut self, key: K, value: V) where K: AsRef<str>, V: Into<Value>;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "8372f7a174328e72e5341310dd2b91380fe832d358bae5af1547e0f4d04a0817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8372f7a174328e72e5341310dd2b91380fe832d358bae5af1547e0f4d04a0817", kill_on_drop: false }`
[INFO] [stdout] 8372f7a174328e72e5341310dd2b91380fe832d358bae5af1547e0f4d04a0817