[INFO] cloning repository https://github.com/pop-os/distinst-v2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pop-os/distinst-v2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fdistinst-v2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fdistinst-v2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c009b6e03393de8e8909829cac48f28b22a727ad
[INFO] testing pop-os/distinst-v2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fdistinst-v2" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pop-os/distinst-v2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pop-os/distinst-v2
[INFO] finished tweaking git repo https://github.com/pop-os/distinst-v2
[INFO] tweaked toml for git repo https://github.com/pop-os/distinst-v2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/pop-os/distinst-v2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f44dc7b5b3feffff8cfa75c740d923720f9ffed29828c52feb66567c736c50f
[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" "5f44dc7b5b3feffff8cfa75c740d923720f9ffed29828c52feb66567c736c50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f44dc7b5b3feffff8cfa75c740d923720f9ffed29828c52feb66567c736c50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f44dc7b5b3feffff8cfa75c740d923720f9ffed29828c52feb66567c736c50f", kill_on_drop: false }`
[INFO] [stdout] 5f44dc7b5b3feffff8cfa75c740d923720f9ffed29828c52feb66567c736c50f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7795ac285ac43eabad18270abbc81d33abb642c30a08135ba227e46dbc710322
[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" "7795ac285ac43eabad18270abbc81d33abb642c30a08135ba227e46dbc710322", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling gimli v0.26.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling easy-parallel v3.1.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling funty v1.2.0
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ward v2.1.0
[INFO] [stderr]    Compiling pollster v0.2.4
[INFO] [stderr]    Compiling hostname-validator v1.1.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v1.2.2
[INFO] [stderr]    Compiling libloading v0.7.1
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling pad v0.1.6
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling qcell v0.4.3
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling smallstr v0.2.0
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling os-release v0.1.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling envfile v0.2.1
[INFO] [stderr]    Compiling ordered-stream v0.0.1
[INFO] [stderr]    Compiling async-broadcast v0.3.4
[INFO] [stderr]    Compiling cradle v0.2.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling bitvec v0.21.2
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling libcryptsetup-rs v0.4.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling nix v0.22.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling nix v0.23.0
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling libudev v0.3.0
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling console v0.9.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling better-panic v0.2.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.81/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="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=065d997f9ca5b280 -C extra-filename=-065d997f9ca5b280 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9dbaaf035d6d15d1.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0bcba2a61b67309f.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.rmeta --cap-lints allow --cap-lints=forbid` (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" "7795ac285ac43eabad18270abbc81d33abb642c30a08135ba227e46dbc710322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7795ac285ac43eabad18270abbc81d33abb642c30a08135ba227e46dbc710322", kill_on_drop: false }`
[INFO] [stdout] 7795ac285ac43eabad18270abbc81d33abb642c30a08135ba227e46dbc710322