[INFO] cloning repository https://github.com/akochi/derpy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akochi/derpy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakochi%2Fderpy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakochi%2Fderpy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a7097d51149be284620093370e575898057eb90
[INFO] checking akochi/derpy against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakochi%2Fderpy" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akochi/derpy on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/akochi/derpy
[INFO] finished tweaking git repo https://github.com/akochi/derpy
[INFO] tweaked toml for git repo https://github.com/akochi/derpy written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/akochi/derpy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v0.6.10
[INFO] [stderr]   Downloaded parking_lot_core v0.6.2
[INFO] [stderr]   Downloaded typenum v1.11.2
[INFO] [stderr]   Downloaded publicsuffix v1.5.3
[INFO] [stderr]   Downloaded syn v0.15.44
[INFO] [stderr]   Downloaded arrayvec v0.4.11
[INFO] [stderr]   Downloaded winapi-util v0.1.2
[INFO] [stderr]   Downloaded mio v0.6.19
[INFO] [stderr]   Downloaded unicase v2.5.1
[INFO] [stderr]   Downloaded wincolor v1.0.2
[INFO] [stderr]   Downloaded input_buffer v0.2.0
[INFO] [stderr]   Downloaded env_logger v0.6.2
[INFO] [stderr]   Downloaded parking_lot v0.9.0
[INFO] [stderr]   Downloaded utf-8 v0.7.5
[INFO] [stderr]   Downloaded fake-simd v0.1.2
[INFO] [stderr]   Downloaded block-buffer v0.7.3
[INFO] [stderr]   Downloaded either v1.5.2
[INFO] [stderr]   Downloaded string v0.2.1
[INFO] [stderr]   Downloaded pretty_env_logger v0.3.1
[INFO] [stderr]   Downloaded cookie v0.12.0
[INFO] [stderr]   Downloaded miniz-sys v0.1.12
[INFO] [stderr]   Downloaded crc32fast v1.2.0
[INFO] [stderr]   Downloaded ct-logs v0.6.0
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded base64 v0.10.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded error-chain v0.12.1
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded humantime v1.2.0
[INFO] [stderr]   Downloaded command_attr v0.1.5
[INFO] [stderr]   Downloaded tokio v0.1.22
[INFO] [stderr]   Downloaded indexmap v1.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.50
[INFO] [stderr]   Downloaded atty v0.2.13
[INFO] [stderr]   Downloaded quote v1.0.2
[INFO] [stderr]   Downloaded opaque-debug v0.2.3
[INFO] [stderr]   Downloaded spin v0.5.2
[INFO] [stderr]   Downloaded rustc-demangle v0.1.16
[INFO] [stderr]   Downloaded termcolor v1.0.5
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded nom v4.2.3
[INFO] [stderr]   Downloaded bumpalo v2.6.0
[INFO] [stderr]   Downloaded dotenv v0.14.1
[INFO] [stderr]   Downloaded url v2.1.0
[INFO] [stderr]   Downloaded sourcefile v0.1.4
[INFO] [stderr]   Downloaded cc v1.0.41
[INFO] [stderr]   Downloaded miniz_oxide v0.3.2
[INFO] [stderr]   Downloaded futures v0.1.28
[INFO] [stderr]   Downloaded lock_api v0.3.1
[INFO] [stderr]   Downloaded reqwest v0.9.20
[INFO] [stderr]   Downloaded js-sys v0.3.27
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.6
[INFO] [stderr]   Downloaded httparse v1.3.4
[INFO] [stderr]   Downloaded uuid v0.7.4
[INFO] [stderr]   Downloaded log v0.4.8
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded backtrace-sys v0.1.31
[INFO] [stderr]   Downloaded weedle v0.10.0
[INFO] [stderr]   Downloaded hyper v0.12.33
[INFO] [stderr]   Downloaded autocfg v0.1.6
[INFO] [stderr]   Downloaded block-padding v0.1.4
[INFO] [stderr]   Downloaded winreg v0.6.2
[INFO] [stderr]   Downloaded encoding_rs v0.8.17
[INFO] [stderr]   Downloaded http v0.1.18
[INFO] [stderr]   Downloaded ryu v1.0.0
[INFO] [stderr]   Downloaded num_cpus v1.10.1
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.50
[INFO] [stderr]   Downloaded serenity v0.7.0
[INFO] [stderr]   Downloaded rustls v0.16.0
[INFO] [stderr]   Downloaded tokio-sync v0.1.6
[INFO] [stderr]   Downloaded serde v1.0.99
[INFO] [stderr]   Downloaded syn v1.0.5
[INFO] [stderr]   Downloaded uwl v0.4.2
[INFO] [stderr]   Downloaded ring v0.16.9
[INFO] [stderr]   Downloaded num-integer v0.1.41
[INFO] [stderr]   Downloaded proc-macro2 v0.4.30
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded unicode-xid v0.2.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded backtrace v0.3.35
[INFO] [stderr]   Downloaded unicode-segmentation v1.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.50
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.50
[INFO] [stderr]   Downloaded webpki v0.21.0
[INFO] [stderr]   Downloaded webpki-roots v0.17.0
[INFO] [stderr]   Downloaded chrono v0.4.9
[INFO] [stderr]   Downloaded web-sys v0.3.27
[INFO] [stderr]   Downloaded serde_json v1.0.40
[INFO] [stderr]   Downloaded untrusted v0.7.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.2
[INFO] [stderr]   Downloaded threadpool v1.7.1
[INFO] [stderr]   Downloaded idna v0.2.0
[INFO] [stderr]   Downloaded cookie_store v0.7.0
[INFO] [stderr]   Downloaded try_from v0.3.2
[INFO] [stderr]   Downloaded tokio-buf v0.1.1
[INFO] [stderr]   Downloaded mime_guess v2.0.1
[INFO] [stderr]   Downloaded sct v0.6.0
[INFO] [stderr]   Downloaded http-body v0.1.0
[INFO] [stderr]   Downloaded want v0.2.0
[INFO] [stderr]   Downloaded heck v0.3.1
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] [stderr]   Downloaded generic-array v0.12.3
[INFO] [stderr]   Downloaded quote v0.6.13
[INFO] [stderr]   Downloaded sha-1 v0.8.1
[INFO] [stderr]   Downloaded synstructure v0.10.2
[INFO] [stderr]   Downloaded timer v0.2.0
[INFO] [stderr]   Downloaded flate2 v1.0.11
[INFO] [stderr]   Downloaded hyper-rustls v0.17.1
[INFO] [stderr]   Downloaded mime v0.3.13
[INFO] [stderr]   Downloaded tokio-rustls v0.10.0
[INFO] [stderr]   Downloaded tokio-timer v0.2.11
[INFO] [stderr]   Downloaded tokio-executor v0.1.8
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.50
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.15
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.50
[INFO] [stderr]   Downloaded serde_derive v1.0.99
[INFO] [stderr]   Downloaded h2 v0.1.26
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.2
[INFO] [stderr]   Downloaded tungstenite v0.9.1
[INFO] [stderr]   Downloaded memoffset v0.5.1
[INFO] [stderr]   Downloaded scopeguard v1.0.0
[INFO] [stderr]   Downloaded num-traits v0.2.8
[INFO] [stderr]   Downloaded byte-tools v0.3.1
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded digest v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", 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] 0b9e839b01cf31d0c9090b903eeafa1fcac4a9474aa6e468ed64406ea35807ec
[INFO] running `Command { std: "docker" "start" "-a" "0b9e839b01cf31d0c9090b903eeafa1fcac4a9474aa6e468ed64406ea35807ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b9e839b01cf31d0c9090b903eeafa1fcac4a9474aa6e468ed64406ea35807ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b9e839b01cf31d0c9090b903eeafa1fcac4a9474aa6e468ed64406ea35807ec", kill_on_drop: false }`
[INFO] [stdout] 0b9e839b01cf31d0c9090b903eeafa1fcac4a9474aa6e468ed64406ea35807ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d5bb7c766f0e09601af876e70accc9db2f70d098f7ef73026da51662c407b3f
[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" "2d5bb7c766f0e09601af876e70accc9db2f70d098f7ef73026da51662c407b3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures v0.1.28
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling serenity v0.7.0
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking uwl v0.4.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking miniz_oxide v0.3.2
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking mime_guess v2.0.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking backtrace v0.3.35
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking publicsuffix v1.5.3
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tungstenite v0.9.1
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.0
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.17.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking tokio-rustls v0.10.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking dotenv v0.14.1
[INFO] [stderr]     Checking hyper-rustls v0.17.1
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling command_attr v0.1.5
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.20
[INFO] [stderr]     Checking derpy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/drawalong.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 replace(&mut drawalong.run, None);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/drawalong.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 |     replace(&mut drawalong.run, Some(Mutex::new(run)));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/drawalong.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 replace(&mut drawalong.run, None);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/drawalong.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 |     replace(&mut drawalong.run, Some(Mutex::new(run)));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 57s
[INFO] running `Command { std: "docker" "inspect" "2d5bb7c766f0e09601af876e70accc9db2f70d098f7ef73026da51662c407b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d5bb7c766f0e09601af876e70accc9db2f70d098f7ef73026da51662c407b3f", kill_on_drop: false }`
[INFO] [stdout] 2d5bb7c766f0e09601af876e70accc9db2f70d098f7ef73026da51662c407b3f