[INFO] cloning repository https://github.com/dialogbox/rust-working-samples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dialogbox/rust-working-samples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdialogbox%2Frust-working-samples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdialogbox%2Frust-working-samples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a95136d92277a7601147e25f9d76dd728dc0906
[INFO] checking dialogbox/rust-working-samples against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdialogbox%2Frust-working-samples" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dialogbox/rust-working-samples on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dialogbox/rust-working-samples
[INFO] finished tweaking git repo https://github.com/dialogbox/rust-working-samples
[INFO] tweaked toml for git repo https://github.com/dialogbox/rust-working-samples written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/dialogbox/rust-working-samples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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] 7bd5e9abadf9a5cfe71f5b0f890b224425905b5d7e6b8cbccb01b97611f813c9
[INFO] running `Command { std: "docker" "start" "-a" "7bd5e9abadf9a5cfe71f5b0f890b224425905b5d7e6b8cbccb01b97611f813c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bd5e9abadf9a5cfe71f5b0f890b224425905b5d7e6b8cbccb01b97611f813c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bd5e9abadf9a5cfe71f5b0f890b224425905b5d7e6b8cbccb01b97611f813c9", kill_on_drop: false }`
[INFO] [stdout] 7bd5e9abadf9a5cfe71f5b0f890b224425905b5d7e6b8cbccb01b97611f813c9
[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" "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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e28417fb9e6f6b06d2aaead8d3e9e11d6accf607086acd994f228a9312d9366e
[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" "e28417fb9e6f6b06d2aaead8d3e9e11d6accf607086acd994f228a9312d9366e", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.24
[INFO] [stderr]    Compiling cc v1.0.23
[INFO] [stderr]    Compiling proc-macro2 v0.4.17
[INFO] [stderr]    Compiling openssl v0.10.11
[INFO] [stderr]    Compiling serde v1.0.76
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking parking_lot_core v0.3.0
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling openssl-sys v0.9.35
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking mio-uds v0.6.6
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.1
[INFO] [stderr]     Checking tokio-timer v0.2.6
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking hyper v0.12.9
[INFO] [stderr]    Compiling serde_derive v1.0.76
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking hyper-tls v0.3.0
[INFO] [stderr]     Checking working-samples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `shear`
[INFO] [stdout]   --> src/traitsamples.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |         fn shear(&mut self) {
[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: `shear`
[INFO] [stdout]   --> src/traitsamples.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |         fn shear(&mut self) {
[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 55.30s
[INFO] running `Command { std: "docker" "inspect" "e28417fb9e6f6b06d2aaead8d3e9e11d6accf607086acd994f228a9312d9366e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28417fb9e6f6b06d2aaead8d3e9e11d6accf607086acd994f228a9312d9366e", kill_on_drop: false }`
[INFO] [stdout] e28417fb9e6f6b06d2aaead8d3e9e11d6accf607086acd994f228a9312d9366e