[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 beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflorianjacob%2Fdsn-traveller" "/workspace/builds/worker-46/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-46/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/florianjacob/dsn-traveller 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 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-46/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" "+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 pin-project-internal v0.4.5
[INFO] [stderr]   Downloaded pin-project v0.4.5
[INFO] [stderr]   Downloaded ruma-identifiers v0.14.0
[INFO] [stderr]   Downloaded ruma-api-macros v0.8.0
[INFO] [stderr]   Downloaded ruma-api v0.11.0
[INFO] [stderr]   Downloaded js_int v0.1.2
[INFO] [stderr]   Downloaded petgraph-graphml v1.0.2
[INFO] [stderr]   Downloaded ruma-client-api v0.4.0
[INFO] [stderr]   Downloaded ruma-events-macros v0.2.0
[INFO] [stderr]   Downloaded ruma-client v0.3.0-beta.1
[INFO] [stderr]   Downloaded ruma-events v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] 1a1b99cb13444dc0fac70b753afba98db28a7e0c68235451f30d5de55a398dde
[INFO] running `Command { std: "docker" "start" "-a" "1a1b99cb13444dc0fac70b753afba98db28a7e0c68235451f30d5de55a398dde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a1b99cb13444dc0fac70b753afba98db28a7e0c68235451f30d5de55a398dde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a1b99cb13444dc0fac70b753afba98db28a7e0c68235451f30d5de55a398dde", kill_on_drop: false }`
[INFO] [stdout] 1a1b99cb13444dc0fac70b753afba98db28a7e0c68235451f30d5de55a398dde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] fe6b46021684511347da9d8d5bd3566fa356e9af05d5749a701ba00092f7c544
[INFO] running `Command { std: "docker" "start" "-a" "fe6b46021684511347da9d8d5bd3566fa356e9af05d5749a701ba00092f7c544", 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]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
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[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
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[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.13
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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
[INFO] [stderr]    Compiling ruma-events-macros v0.2.0
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[INFO] [stderr]    Compiling tracing v0.1.10
[INFO] [stderr]    Compiling pin-project v0.4.5
[INFO] [stderr]    Compiling tokio-executor v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-io v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-codec 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 h2 v0.2.0-alpha.3
[INFO] [stderr]    Compiling tokio-net v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-fs v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-timer v0.3.0-alpha.6
[INFO] [stderr]    Compiling tokio v0.2.0-alpha.6
[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 hyper v0.13.0-alpha.4
[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:54:29
[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` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fe6b46021684511347da9d8d5bd3566fa356e9af05d5749a701ba00092f7c544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe6b46021684511347da9d8d5bd3566fa356e9af05d5749a701ba00092f7c544", kill_on_drop: false }`
[INFO] [stdout] fe6b46021684511347da9d8d5bd3566fa356e9af05d5749a701ba00092f7c544
