[INFO] fetching crate fhiroki-bicycle-book-wordcount 0.1.0...
[INFO] testing fhiroki-bicycle-book-wordcount-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate fhiroki-bicycle-book-wordcount 0.1.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate fhiroki-bicycle-book-wordcount 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-19/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eecb71a0384eee60fff5bab2332be2c903cfbe52df393319055f7ae22d81c1ae
[INFO] running `Command { std: "docker" "start" "-a" "eecb71a0384eee60fff5bab2332be2c903cfbe52df393319055f7ae22d81c1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eecb71a0384eee60fff5bab2332be2c903cfbe52df393319055f7ae22d81c1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eecb71a0384eee60fff5bab2332be2c903cfbe52df393319055f7ae22d81c1ae", kill_on_drop: false }`
[INFO] [stdout] eecb71a0384eee60fff5bab2332be2c903cfbe52df393319055f7ae22d81c1ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 442bc306947539140b4a58b073858582da74dca02f81c950bcb511889ff99afb
[INFO] running `Command { std: "docker" "start" "-a" "442bc306947539140b4a58b073858582da74dca02f81c950bcb511889ff99afb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling 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(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.60s
[INFO] running `Command { std: "docker" "inspect" "442bc306947539140b4a58b073858582da74dca02f81c950bcb511889ff99afb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442bc306947539140b4a58b073858582da74dca02f81c950bcb511889ff99afb", kill_on_drop: false }`
[INFO] [stdout] 442bc306947539140b4a58b073858582da74dca02f81c950bcb511889ff99afb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efa5d1ed4ba641f2912c1fcf7bd181df0ba21a1f497103ea1f74eadc70d36640
[INFO] running `Command { std: "docker" "start" "-a" "efa5d1ed4ba641f2912c1fcf7bd181df0ba21a1f497103ea1f74eadc70d36640", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "efa5d1ed4ba641f2912c1fcf7bd181df0ba21a1f497103ea1f74eadc70d36640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa5d1ed4ba641f2912c1fcf7bd181df0ba21a1f497103ea1f74eadc70d36640", kill_on_drop: false }`
[INFO] [stdout] efa5d1ed4ba641f2912c1fcf7bd181df0ba21a1f497103ea1f74eadc70d36640
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9c464c391f6795e850345a586770b1d9342bee9c79c8104cd14f5e1f310d5b58
[INFO] running `Command { std: "docker" "start" "-a" "9c464c391f6795e850345a586770b1d9342bee9c79c8104cd14f5e1f310d5b58", kill_on_drop: false }`
[INFO] [stderr] warning: panic message contains braces
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:18:50
[INFO] [stdout] running 4 tests
[INFO] [stderr]    |
[INFO] [stderr] 18 |         _ => panic!("invalid option: select from {char, word, line}")
[INFO] [stderr]    |                                                  ^                ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 18 |         _ => panic!("{}", "invalid option: select from {char, word, line}")
[INFO] [stderr]    |                     +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fhiroki-bicycle-book-wordcount` (bin "fhiroki-bicycle-book-wordcount" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fhiroki_bicycle_book_wordcount-486ffdfe93d9eef2)
[INFO] [stdout] test test::word_count_works2 ... ok
[INFO] [stdout] test test::word_count_works ... ok
[INFO] [stdout] test test::word_count_works3 ... ok
[INFO] [stdout] test test::word_count_do_not_contain_unknown_words - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fhiroki_bicycle_book_wordcount-d9eb3c518beb2922)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fhiroki-bicycle-book-wordcount
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - count (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9c464c391f6795e850345a586770b1d9342bee9c79c8104cd14f5e1f310d5b58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c464c391f6795e850345a586770b1d9342bee9c79c8104cd14f5e1f310d5b58", kill_on_drop: false }`
[INFO] [stdout] 9c464c391f6795e850345a586770b1d9342bee9c79c8104cd14f5e1f310d5b58