[INFO] fetching crate ic-cdk-optimizer 0.3.0...
[INFO] testing ic-cdk-optimizer-0.3.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate ic-cdk-optimizer 0.3.0 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate ic-cdk-optimizer 0.3.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ic-cdk-optimizer 0.3.0
[INFO] finished tweaking crates.io crate ic-cdk-optimizer 0.3.0
[INFO] tweaked toml for crates.io crate ic-cdk-optimizer 0.3.0 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate crates.io crate ic-cdk-optimizer 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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 serde v1.0.126
[INFO] [stderr]   Downloaded wabt v0.10.0
[INFO] [stderr]   Downloaded cmake v0.1.45
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded cc v1.0.68
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.4
[INFO] [stderr]   Downloaded proc-macro-error v1.0.4
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] [stderr]   Downloaded os_str_bytes v2.4.0
[INFO] [stderr]   Downloaded heck v0.3.3
[INFO] [stderr]   Downloaded vec_map v0.8.2
[INFO] [stderr]   Downloaded unicode-segmentation v1.7.1
[INFO] [stderr]   Downloaded indexmap v1.6.2
[INFO] [stderr]   Downloaded redox_syscall v0.2.8
[INFO] [stderr]   Downloaded clap_derive v3.0.0-beta.2
[INFO] [stderr]   Downloaded hashbrown v0.9.1
[INFO] [stderr]   Downloaded binaryen v0.12.0
[INFO] [stderr]   Downloaded humansize v1.1.1
[INFO] [stderr]   Downloaded libc v0.2.95
[INFO] [stderr]   Downloaded proc-macro2 v1.0.27
[INFO] [stderr]   Downloaded serde_derive v1.0.126
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded textwrap v0.12.1
[INFO] [stderr]   Downloaded clap v3.0.0-beta.2
[INFO] [stderr]   Downloaded binaryen-sys v0.12.0
[INFO] [stderr]   Downloaded wabt-sys v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4921730a4edab8e9741b608932ef12b605a800fa5cca58441910d339bbd3d64e
[INFO] running `Command { std: "docker" "start" "-a" "4921730a4edab8e9741b608932ef12b605a800fa5cca58441910d339bbd3d64e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4921730a4edab8e9741b608932ef12b605a800fa5cca58441910d339bbd3d64e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4921730a4edab8e9741b608932ef12b605a800fa5cca58441910d339bbd3d64e", kill_on_drop: false }`
[INFO] [stdout] 4921730a4edab8e9741b608932ef12b605a800fa5cca58441910d339bbd3d64e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 536b2c4fc6cc8a7c55fe57ff914d4ecc817755f88f2ddb581cf2efd9396b828d
[INFO] running `Command { std: "docker" "start" "-a" "536b2c4fc6cc8a7c55fe57ff914d4ecc817755f88f2ddb581cf2efd9396b828d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling humansize v1.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling wabt-sys v0.8.0
[INFO] [stderr]    Compiling binaryen-sys v0.12.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr] error: could not compile `serde_json`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_json --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.64/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=1c762c5113125f43 -C extra-filename=-1c762c5113125f43 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern itoa=/opt/rustwide/target/debug/deps/libitoa-3af14a1bb7e125c4.rmeta --extern ryu=/opt/rustwide/target/debug/deps/libryu-58d6bdbbdb00e196.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-732e0f38bf7253d4.rmeta --cap-lints allow --cap-lints=warn --cfg limb_width_64` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "536b2c4fc6cc8a7c55fe57ff914d4ecc817755f88f2ddb581cf2efd9396b828d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536b2c4fc6cc8a7c55fe57ff914d4ecc817755f88f2ddb581cf2efd9396b828d", kill_on_drop: false }`
[INFO] [stdout] 536b2c4fc6cc8a7c55fe57ff914d4ecc817755f88f2ddb581cf2efd9396b828d
