[INFO] cloning repository https://github.com/julienXX/toucan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/julienXX/toucan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjulienXX%2Ftoucan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjulienXX%2Ftoucan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 766aa80a6d9bdda997308a17dd9d771c6c49c1dc
[INFO] testing julienXX/toucan against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjulienXX%2Ftoucan" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/julienXX/toucan on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/julienXX/toucan
[INFO] finished tweaking git repo https://github.com/julienXX/toucan
[INFO] tweaked toml for git repo https://github.com/julienXX/toucan written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/julienXX/toucan already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 11ebf0335003c071b2388108a7d1e3e80a3137fd6d5a51fd6d9c93664dd8900f
[INFO] running `Command { std: "docker" "start" "-a" "11ebf0335003c071b2388108a7d1e3e80a3137fd6d5a51fd6d9c93664dd8900f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11ebf0335003c071b2388108a7d1e3e80a3137fd6d5a51fd6d9c93664dd8900f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ebf0335003c071b2388108a7d1e3e80a3137fd6d5a51fd6d9c93664dd8900f", kill_on_drop: false }`
[INFO] [stdout] 11ebf0335003c071b2388108a7d1e3e80a3137fd6d5a51fd6d9c93664dd8900f
[INFO] running `Command { std: "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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0113d16a9725020cc8d5ad284710271a78e33df538f22aab83c6bb70c4e6396
[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" "d0113d16a9725020cc8d5ad284710271a78e33df538f22aab83c6bb70c4e6396", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling hoedown v6.0.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling handlebars v3.3.0
[INFO] [stderr]    Compiling toucan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `Document: serde::ser::Serialize` is not satisfied
[INFO] [stdout]    --> src/main.rs:131:35
[INFO] [stdout]     |
[INFO] [stdout] 131 |     handlebars.render("template", document).unwrap()
[INFO] [stdout]     |                                   ^^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `Document`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `rustc_serialize::json::Json: serde::ser::Serialize` is not satisfied
[INFO] [stdout]    --> src/main.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |     handlebars.render("template", documents).unwrap()
[INFO] [stdout]     |                                   ^^^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `rustc_serialize::json::Json`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `serde::ser::Serialize` for `std::collections::BTreeMap<std::string::String, rustc_serialize::json::Json>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toucan`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d0113d16a9725020cc8d5ad284710271a78e33df538f22aab83c6bb70c4e6396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0113d16a9725020cc8d5ad284710271a78e33df538f22aab83c6bb70c4e6396", kill_on_drop: false }`
[INFO] [stdout] d0113d16a9725020cc8d5ad284710271a78e33df538f22aab83c6bb70c4e6396