[INFO] updating cached repository https://github.com/colbyn/web-images-js
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9b766b8bdfccb2c429832e461d2be680b61966c9
[INFO] checking colbyn/web-images-js against try#a243773eaf3fedcd203f10ae4579e4f106bf7ccd for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolbyn%2Fweb-images-js" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colbyn/web-images-js on toolchain a243773eaf3fedcd203f10ae4579e4f106bf7ccd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/colbyn/web-images-js
[INFO] finished tweaking git repo https://github.com/colbyn/web-images-js
[INFO] tweaked toml for git repo https://github.com/colbyn/web-images-js written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/colbyn/web-images-js already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7e2f5911ffef4ed199e6c800fa644e200e5137b0d61d1c4dd5fcf2e043efc4a2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7e2f5911ffef4ed199e6c800fa644e200e5137b0d61d1c4dd5fcf2e043efc4a2"`
[INFO] [stderr]    Compiling ryu v1.0.1
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]     Checking num-bigint v0.2.3
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking colourado v0.2.0
[INFO] [stderr]     Checking rulinalg v0.4.2
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]    Compiling backtrace v0.3.38
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr] error: linker `x86_64-linux-musl-gcc` not found
[INFO] [stderr]   |
[INFO] [stderr]   = note: No such file or directory (os error 2)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `libloading`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: linker `x86_64-linux-musl-gcc` not found
[INFO] [stderr]   |
[INFO] [stderr]   = note: No such file or directory (os error 2)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `ryu`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7e2f5911ffef4ed199e6c800fa644e200e5137b0d61d1c4dd5fcf2e043efc4a2"`
[INFO] running `"docker" "rm" "-f" "7e2f5911ffef4ed199e6c800fa644e200e5137b0d61d1c4dd5fcf2e043efc4a2"`
[INFO] [stdout] 7e2f5911ffef4ed199e6c800fa644e200e5137b0d61d1c4dd5fcf2e043efc4a2