[INFO] cloning repository https://github.com/yangcancai/hello_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yangcancai/hello_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyangcancai%2Fhello_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyangcancai%2Fhello_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f7c78600db0c154289201dae20d1e0073c35960
[INFO] checking yangcancai/hello_rust against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyangcancai%2Fhello_rust" "/workspace/builds/worker-41/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-41/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yangcancai/hello_rust on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yangcancai/hello_rust
[INFO] finished tweaking git repo https://github.com/yangcancai/hello_rust
[INFO] tweaked toml for git repo https://github.com/yangcancai/hello_rust written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] crate git repo https://github.com/yangcancai/hello_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7c0d9b8926be76948c6c80c26e0c1cedc0292d50997d0a07d186cd5ed746528
[INFO] running `Command { std: "docker" "start" "-a" "e7c0d9b8926be76948c6c80c26e0c1cedc0292d50997d0a07d186cd5ed746528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7c0d9b8926be76948c6c80c26e0c1cedc0292d50997d0a07d186cd5ed746528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7c0d9b8926be76948c6c80c26e0c1cedc0292d50997d0a07d186cd5ed746528", kill_on_drop: false }`
[INFO] [stdout] e7c0d9b8926be76948c6c80c26e0c1cedc0292d50997d0a07d186cd5ed746528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18473ce3734eabda69c04fee652a529144cbf8ec82bf75a99da7a9195709860e
[INFO] running `Command { std: "docker" "start" "-a" "18473ce3734eabda69c04fee652a529144cbf8ec82bf75a99da7a9195709860e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling amq-protocol v6.0.3
[INFO] [stderr]     Checking cookie-factory v0.3.2
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling lapin v1.7.1
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking slice v0.1.0 (/opt/rustwide/workdir/slice)
[INFO] [stderr]     Checking data_structure v0.1.0 (/opt/rustwide/workdir/data_structure)
[INFO] [stderr]     Checking alloc v0.1.0 (/opt/rustwide/workdir/alloc)
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking tracing-core v0.1.19
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking sharded-slab v0.1.3
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> data_structure/src/lib.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn push(&mut self, elem: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove`
[INFO] [stdout]   --> data_structure/src/lib.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn remove(&mut self, elem: T) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.67/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=179828e65b0b359f -C extra-filename=-179828e65b0b359f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "18473ce3734eabda69c04fee652a529144cbf8ec82bf75a99da7a9195709860e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18473ce3734eabda69c04fee652a529144cbf8ec82bf75a99da7a9195709860e", kill_on_drop: false }`
[INFO] [stdout] 18473ce3734eabda69c04fee652a529144cbf8ec82bf75a99da7a9195709860e