[INFO] fetching crate ctftools 0.1.2...
[INFO] checking ctftools-0.1.2 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate ctftools 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ctftools 0.1.2 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ctftools 0.1.2
[INFO] finished tweaking crates.io crate ctftools 0.1.2
[INFO] tweaked toml for crates.io crate ctftools 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] b8d4439d745f046ce15a8fbebd471e70ffbb4976e679422f70319476dbf43621
[INFO] running `Command { std: "docker" "start" "-a" "b8d4439d745f046ce15a8fbebd471e70ffbb4976e679422f70319476dbf43621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8d4439d745f046ce15a8fbebd471e70ffbb4976e679422f70319476dbf43621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8d4439d745f046ce15a8fbebd471e70ffbb4976e679422f70319476dbf43621", kill_on_drop: false }`
[INFO] [stdout] b8d4439d745f046ce15a8fbebd471e70ffbb4976e679422f70319476dbf43621
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8819d3bffa5ab67bce798b22ba4ef21861d4300e67b038832b01ab0c6fe657d2
[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" "8819d3bffa5ab67bce798b22ba4ef21861d4300e67b038832b01ab0c6fe657d2", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking sysexit v0.2.0
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking goblin v0.2.3
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking checksec v0.0.4
[INFO] [stderr]     Checking ctftools v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `is_remote`
[INFO] [stdout]    --> src/comms/process.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn is_remote(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[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: associated function is never used: `is_remote`
[INFO] [stdout]    --> src/comms/process.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn is_remote(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[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 [unoptimized + debuginfo] target(s) in 12.88s
[INFO] running `Command { std: "docker" "inspect" "8819d3bffa5ab67bce798b22ba4ef21861d4300e67b038832b01ab0c6fe657d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8819d3bffa5ab67bce798b22ba4ef21861d4300e67b038832b01ab0c6fe657d2", kill_on_drop: false }`
[INFO] [stdout] 8819d3bffa5ab67bce798b22ba4ef21861d4300e67b038832b01ab0c6fe657d2