[INFO] fetching crate tract-data 0.11.2...
[INFO] checking tract-data-0.11.2 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate tract-data 0.11.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate tract-data 0.11.2 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tract-data 0.11.2
[INFO] finished tweaking crates.io crate tract-data 0.11.2
[INFO] tweaked toml for crates.io crate tract-data 0.11.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71ab47c5d65dd898c83aabcdc9e89aa7a1f3599e46badc1f5de65b57e4dfdc10
[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" "71ab47c5d65dd898c83aabcdc9e89aa7a1f3599e46badc1f5de65b57e4dfdc10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71ab47c5d65dd898c83aabcdc9e89aa7a1f3599e46badc1f5de65b57e4dfdc10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ab47c5d65dd898c83aabcdc9e89aa7a1f3599e46badc1f5de65b57e4dfdc10", kill_on_drop: false }`
[INFO] [stdout] 71ab47c5d65dd898c83aabcdc9e89aa7a1f3599e46badc1f5de65b57e4dfdc10
[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" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 634bb18b7cdfd3bbd4d06052324e4751bb9505a4116c3c80fec50a39c713e115
[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" "634bb18b7cdfd3bbd4d06052324e4751bb9505a4116c3c80fec50a39c713e115", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling enum-ordinalize v3.1.8
[INFO] [stderr]    Compiling educe v0.4.11
[INFO] [stderr]     Checking tract-data v0.11.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains unused formatting placeholders
[INFO] [stdout]    --> src/datum.rs:133:48
[INFO] [stdout]     |
[INFO] [stdout] 133 |             _ => panic!("No integer for signed:{} size:{}"),
[INFO] [stdout]     |                                                ^^      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing arguments
[INFO] [stdout]     |
[INFO] [stdout] 133 |             _ => panic!("No integer for signed:{} size:{}", ...),
[INFO] [stdout]     |                                                           ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 133 |             _ => panic!("{}", "No integer for signed:{} size:{}"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains unused formatting placeholders
[INFO] [stdout]    --> src/datum.rs:133:48
[INFO] [stdout]     |
[INFO] [stdout] 133 |             _ => panic!("No integer for signed:{} size:{}"),
[INFO] [stdout]     |                                                ^^      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing arguments
[INFO] [stdout]     |
[INFO] [stdout] 133 |             _ => panic!("No integer for signed:{} size:{}", ...),
[INFO] [stdout]     |                                                           ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 133 |             _ => panic!("{}", "No integer for signed:{} size:{}"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.40s
[INFO] running `Command { std: "docker" "inspect" "634bb18b7cdfd3bbd4d06052324e4751bb9505a4116c3c80fec50a39c713e115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "634bb18b7cdfd3bbd4d06052324e4751bb9505a4116c3c80fec50a39c713e115", kill_on_drop: false }`
[INFO] [stdout] 634bb18b7cdfd3bbd4d06052324e4751bb9505a4116c3c80fec50a39c713e115