[INFO] cloning repository https://github.com/florianjacob/dsn-traveller
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/florianjacob/dsn-traveller" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflorianjacob%2Fdsn-traveller", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflorianjacob%2Fdsn-traveller'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36b06ee371c1c882aae790fcbda5f7f53ee3f5f4
[INFO] testing florianjacob/dsn-traveller against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflorianjacob%2Fdsn-traveller" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/florianjacob/dsn-traveller on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/florianjacob/dsn-traveller
[INFO] finished tweaking git repo https://github.com/florianjacob/dsn-traveller
[INFO] tweaked toml for git repo https://github.com/florianjacob/dsn-traveller written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/florianjacob/dsn-traveller already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] f986b97758efbb167099ac6899a69e9aa9a518d41c39cfef776a0685574c0277
[INFO] running `Command { std: "docker" "start" "-a" "f986b97758efbb167099ac6899a69e9aa9a518d41c39cfef776a0685574c0277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f986b97758efbb167099ac6899a69e9aa9a518d41c39cfef776a0685574c0277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f986b97758efbb167099ac6899a69e9aa9a518d41c39cfef776a0685574c0277", kill_on_drop: false }`
[INFO] [stdout] f986b97758efbb167099ac6899a69e9aa9a518d41c39cfef776a0685574c0277
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", 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] c216df10e8d6890cf81e15f995d7f9b0a2d71681ac63279dde39294a1bd537e0
[INFO] running `Command { std: "docker" "start" "-a" "c216df10e8d6890cf81e15f995d7f9b0a2d71681ac63279dde39294a1bd537e0", kill_on_drop: false }`
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[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
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[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling scopeguard v1.0.0
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[INFO] [stderr]    Compiling getrandom v0.1.13
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[INFO] [stderr]    Compiling cc v1.0.47
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[INFO] [stderr]    Compiling openssl-probe v0.1.2
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[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
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[INFO] [stderr]    Compiling atty v0.2.13
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[INFO] [stderr]    Compiling http-body v0.2.0-alpha.3
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[INFO] [stderr]    Compiling pin-project-internal v0.4.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.5
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.6
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[INFO] [stderr]    Compiling ruma-events-macros v0.2.0
[INFO] [stderr]    Compiling tracing v0.1.10
[INFO] [stderr]    Compiling tokio-executor v0.2.0-alpha.6
[INFO] [stderr]    Compiling pin-project v0.4.5
[INFO] [stderr]    Compiling tokio-io v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-timer v0.3.0-alpha.6
[INFO] [stderr]    Compiling tokio-codec v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-fs v0.2.0-alpha.6
[INFO] [stderr]    Compiling tower-make v0.3.0-alpha.2a
[INFO] [stderr]    Compiling tokio-tls v0.3.0-alpha.6
[INFO] [stderr]    Compiling tokio-net v0.2.0-alpha.6
[INFO] [stderr]    Compiling h2 v0.2.0-alpha.3
[INFO] [stderr]    Compiling tokio v0.2.0-alpha.6
[INFO] [stderr]    Compiling hyper v0.13.0-alpha.4
[INFO] [stderr]    Compiling hyper-tls v0.4.0-alpha.4
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling js_int v0.1.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling ron v0.5.1
[INFO] [stderr]    Compiling ruma-identifiers v0.14.0
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling ruma-events v0.15.1
[INFO] [stderr]    Compiling ruma-api v0.11.0
[INFO] [stderr]    Compiling petgraph-graphml v1.0.2
[INFO] [stderr]    Compiling matrixgraph v0.1.0 (/opt/rustwide/workdir/matrixgraph)
[INFO] [stdout] error[E0038]: the trait `BuildHasher` cannot be made into an object
[INFO] [stdout]    --> matrixgraph/src/lib.rs:54:28
[INFO] [stdout]     |
[INFO] [stdout] 54  | fn hash_with_salt(builder: &dyn BuildHasher<Hasher = DefaultHasher>, x: &impl Hash, salt: u64) -> u64 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `BuildHasher` cannot be made into an object
[INFO] [stdout]     |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0038`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `matrixgraph`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c216df10e8d6890cf81e15f995d7f9b0a2d71681ac63279dde39294a1bd537e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c216df10e8d6890cf81e15f995d7f9b0a2d71681ac63279dde39294a1bd537e0", kill_on_drop: false }`
[INFO] [stdout] c216df10e8d6890cf81e15f995d7f9b0a2d71681ac63279dde39294a1bd537e0