[INFO] cloning repository https://github.com/0b101010/asccc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0b101010/asccc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b101010%2Fasccc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b101010%2Fasccc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f3f782a4a90d5360772fff3f4078dfeee963fcf
[INFO] checking 0b101010/asccc against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b101010%2Fasccc" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0b101010/asccc on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0b101010/asccc
[INFO] finished tweaking git repo https://github.com/0b101010/asccc
[INFO] tweaked toml for git repo https://github.com/0b101010/asccc written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/0b101010/asccc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded coap v0.7.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c06a645a412e756bfe742cb096ec994c158434f984c914d591fecb17545648bd
[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" "c06a645a412e756bfe742cb096ec994c158434f984c914d591fecb17545648bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c06a645a412e756bfe742cb096ec994c158434f984c914d591fecb17545648bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c06a645a412e756bfe742cb096ec994c158434f984c914d591fecb17545648bd", kill_on_drop: false }`
[INFO] [stdout] c06a645a412e756bfe742cb096ec994c158434f984c914d591fecb17545648bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--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] 1607814c7ccd1d62633a76eb57ac56f329a7fa6183b55ed026d44b9619c8ec48
[INFO] running `Command { std: "docker" "start" "-a" "1607814c7ccd1d62633a76eb57ac56f329a7fa6183b55ed026d44b9619c8ec48", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking serde v1.0.124
[INFO] [stderr]     Checking bincode v1.3.2
[INFO] [stderr]     Checking serde-transcode v1.1.0
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking coap v0.7.5
[INFO] [stderr]     Checking asccc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:97:54
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn coap_message_to_string(message: Packet) -> Result<(String), failure::Error> {
[INFO] [stdout]    |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:97:54
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn coap_message_to_string(message: Packet) -> Result<(String), failure::Error> {
[INFO] [stdout]    |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[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 58.27s
[INFO] running `Command { std: "docker" "inspect" "1607814c7ccd1d62633a76eb57ac56f329a7fa6183b55ed026d44b9619c8ec48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1607814c7ccd1d62633a76eb57ac56f329a7fa6183b55ed026d44b9619c8ec48", kill_on_drop: false }`
[INFO] [stdout] 1607814c7ccd1d62633a76eb57ac56f329a7fa6183b55ed026d44b9619c8ec48