[INFO] cloning repository https://github.com/i-think-rapido/flicbtn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/i-think-rapido/flicbtn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi-think-rapido%2Fflicbtn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi-think-rapido%2Fflicbtn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de6110ab41605b3e03818174c4780e26653db66f
[INFO] testing i-think-rapido/flicbtn against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi-think-rapido%2Fflicbtn" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/i-think-rapido/flicbtn on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/i-think-rapido/flicbtn
[INFO] finished tweaking git repo https://github.com/i-think-rapido/flicbtn
[INFO] tweaked toml for git repo https://github.com/i-think-rapido/flicbtn written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/i-think-rapido/flicbtn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30a747268a9f61c5fc855e8980d18d3e8b15538980e25c0caedbdd765a498c06
[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" "30a747268a9f61c5fc855e8980d18d3e8b15538980e25c0caedbdd765a498c06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30a747268a9f61c5fc855e8980d18d3e8b15538980e25c0caedbdd765a498c06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30a747268a9f61c5fc855e8980d18d3e8b15538980e25c0caedbdd765a498c06", kill_on_drop: false }`
[INFO] [stdout] 30a747268a9f61c5fc855e8980d18d3e8b15538980e25c0caedbdd765a498c06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", 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] cffa971eb865746eb65bdfb8314430697e5584b91795a40066fac868b60c446c
[INFO] running `Command { std: "docker" "start" "-a" "cffa971eb865746eb65bdfb8314430697e5584b91795a40066fac868b60c446c", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling num_enum v0.4.3
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling flicbtn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.87s
[INFO] running `Command { std: "docker" "inspect" "cffa971eb865746eb65bdfb8314430697e5584b91795a40066fac868b60c446c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cffa971eb865746eb65bdfb8314430697e5584b91795a40066fac868b60c446c", kill_on_drop: false }`
[INFO] [stdout] cffa971eb865746eb65bdfb8314430697e5584b91795a40066fac868b60c446c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 094fa3597119aa385e052bfd4e300260325da808e53b11bccdd873479e7ce0cd
[INFO] running `Command { std: "docker" "start" "-a" "094fa3597119aa385e052bfd4e300260325da808e53b11bccdd873479e7ce0cd", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling flicbtn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `as_str` found for reference `&str` in the current scope
[INFO] [stdout]   --> examples/simpleclient.rs:45:25
[INFO] [stdout]    |
[INFO] [stdout] 45 |             match input.as_str() {
[INFO] [stdout]    |                        -^^^^^^-- help: remove this method call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flicbtn` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "094fa3597119aa385e052bfd4e300260325da808e53b11bccdd873479e7ce0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "094fa3597119aa385e052bfd4e300260325da808e53b11bccdd873479e7ce0cd", kill_on_drop: false }`
[INFO] [stdout] 094fa3597119aa385e052bfd4e300260325da808e53b11bccdd873479e7ce0cd