[INFO] fetching crate fhiroki-bicycle-book-wordcount 0.1.0...
[INFO] checking fhiroki-bicycle-book-wordcount-0.1.0 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate fhiroki-bicycle-book-wordcount 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate fhiroki-bicycle-book-wordcount 0.1.0 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 fhiroki-bicycle-book-wordcount 0.1.0
[INFO] finished tweaking crates.io crate fhiroki-bicycle-book-wordcount 0.1.0
[INFO] tweaked toml for crates.io crate fhiroki-bicycle-book-wordcount 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate fhiroki-bicycle-book-wordcount 0.1.0 already has a lockfile, it will not be regenerated
[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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 849ee95aa46d1e009481b788e4235fc072cab3bb3a8e166b22b979e3e064411f
[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" "849ee95aa46d1e009481b788e4235fc072cab3bb3a8e166b22b979e3e064411f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "849ee95aa46d1e009481b788e4235fc072cab3bb3a8e166b22b979e3e064411f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "849ee95aa46d1e009481b788e4235fc072cab3bb3a8e166b22b979e3e064411f", kill_on_drop: false }`
[INFO] [stdout] 849ee95aa46d1e009481b788e4235fc072cab3bb3a8e166b22b979e3e064411f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fafd0a74320847b88d0344587a4e7194d2248585d0977af025624ab831e4cc01
[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" "fafd0a74320847b88d0344587a4e7194d2248585d0977af025624ab831e4cc01", 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]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking fhiroki-bicycle-book-wordcount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/main.rs:18:50
[INFO] [stdout]    |
[INFO] [stdout] 18 |         _ => panic!("invalid option: select from {char, word, line}")
[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, but will be in a future Rust edition
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 18 |         _ => panic!("{}", "invalid option: select from {char, word, line}")
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/main.rs:18:50
[INFO] [stdout]    |
[INFO] [stdout] 18 |         _ => panic!("invalid option: select from {char, word, line}")
[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, but will be in a future Rust edition
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 18 |         _ => panic!("{}", "invalid option: select from {char, word, line}")
[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 4.93s
[INFO] running `Command { std: "docker" "inspect" "fafd0a74320847b88d0344587a4e7194d2248585d0977af025624ab831e4cc01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fafd0a74320847b88d0344587a4e7194d2248585d0977af025624ab831e4cc01", kill_on_drop: false }`
[INFO] [stdout] fafd0a74320847b88d0344587a4e7194d2248585d0977af025624ab831e4cc01