[INFO] cloning repository https://github.com/PRL-PRG/dejacode-downloader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PRL-PRG/dejacode-downloader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPRL-PRG%2Fdejacode-downloader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPRL-PRG%2Fdejacode-downloader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa78ac1239a4bcaead96b373f3d93fb5ddeb523b
[INFO] testing PRL-PRG/dejacode-downloader against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPRL-PRG%2Fdejacode-downloader" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PRL-PRG/dejacode-downloader on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PRL-PRG/dejacode-downloader
[INFO] finished tweaking git repo https://github.com/PRL-PRG/dejacode-downloader
[INFO] tweaked toml for git repo https://github.com/PRL-PRG/dejacode-downloader written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/PRL-PRG/dejacode-downloader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded curl v0.4.31
[INFO] [stderr]   Downloaded git2 v0.13.6
[INFO] [stderr]   Downloaded libssh2-sys v0.2.18
[INFO] [stderr]   Downloaded curl-sys v0.4.33+curl-7.71.1
[INFO] [stderr]   Downloaded libgit2-sys v0.12.7+1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] de50e71e5b2d1b417f85c5f6b0cc4aaaaf773675ee17784dc29fa5692a5fd984
[INFO] running `Command { std: "docker" "start" "-a" "de50e71e5b2d1b417f85c5f6b0cc4aaaaf773675ee17784dc29fa5692a5fd984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de50e71e5b2d1b417f85c5f6b0cc4aaaaf773675ee17784dc29fa5692a5fd984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de50e71e5b2d1b417f85c5f6b0cc4aaaaf773675ee17784dc29fa5692a5fd984", kill_on_drop: false }`
[INFO] [stdout] de50e71e5b2d1b417f85c5f6b0cc4aaaaf773675ee17784dc29fa5692a5fd984
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b79ffc6964c45323a43512d5ad198f932a967d2f5af971964127f770ccf3f1d
[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" "8b79ffc6964c45323a43512d5ad198f932a967d2f5af971964127f770ccf3f1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling tinyvec v0.3.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling curl v0.4.31
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling chrono v0.4.13
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libssh2-sys v0.2.18
[INFO] [stderr]    Compiling curl-sys v0.4.33+curl-7.71.1
[INFO] [stderr]    Compiling libgit2-sys v0.12.7+1.0.0
[INFO] [stderr]    Compiling git2 v0.13.6
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling dcd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `dcd`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name dcd --edition=2018 src/bin/dcd.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=95b9dc027c27f285 -C extra-filename=-95b9dc027c27f285 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-e2336c8c4df29fb2.rlib --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-2f9d4a3f19411b1e.rlib --extern chrono=/opt/rustwide/target/debug/deps/libchrono-9e511227cd9e5431.rlib --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-ca388431fc878c1d.rlib --extern csv=/opt/rustwide/target/debug/deps/libcsv-4506da0104277566.rlib --extern curl=/opt/rustwide/target/debug/deps/libcurl-c3302637919e0ea9.rlib --extern dcd=/opt/rustwide/target/debug/deps/libdcd-7afdd91486f62536.rlib --extern git2=/opt/rustwide/target/debug/deps/libgit2-c6d817f1a43856b6.rlib --extern json=/opt/rustwide/target/debug/deps/libjson-5d8d7f8f4bdd0f8e.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-e0efc6dbc035ce56.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-1fbe693d5ad14f2c.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/curl-sys-659b8984828dbcb0/out/build -L native=/usr/lib/x86_64-linux-gnu -L native=/opt/rustwide/target/debug/build/libgit2-sys-5a9099542705067b/out/build -L native=/opt/rustwide/target/debug/build/libssh2-sys-20453e7127eb2ef1/out/build` (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" "8b79ffc6964c45323a43512d5ad198f932a967d2f5af971964127f770ccf3f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b79ffc6964c45323a43512d5ad198f932a967d2f5af971964127f770ccf3f1d", kill_on_drop: false }`
[INFO] [stdout] 8b79ffc6964c45323a43512d5ad198f932a967d2f5af971964127f770ccf3f1d