[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] checking julienXX/toucan against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjulienXX%2Ftoucan" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/julienXX/toucan on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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-9/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/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[INFO] the lockfile is outdated, regenerating it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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d070dcf0c6a4f5d5458844d5c778ada0d6d865725c938a511c448a1b24669005
[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" "d070dcf0c6a4f5d5458844d5c778ada0d6d865725c938a511c448a1b24669005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d070dcf0c6a4f5d5458844d5c778ada0d6d865725c938a511c448a1b24669005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d070dcf0c6a4f5d5458844d5c778ada0d6d865725c938a511c448a1b24669005", kill_on_drop: false }`
[INFO] [stdout] d070dcf0c6a4f5d5458844d5c778ada0d6d865725c938a511c448a1b24669005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e3707f257c79a8f0524e95501f2ba954386a242ca1635c070f4b52fa9a9123d
[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" "2e3707f257c79a8f0524e95501f2ba954386a242ca1635c070f4b52fa9a9123d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling hoedown v6.0.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking handlebars v3.5.2
[INFO] [stderr]     Checking 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 `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 `Json`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `serde::ser::Serialize` for `BTreeMap<std::string::String, Json>`
[INFO] [stdout] 
[INFO] [stdout] 
[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: 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] [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 `BTreeMap<std::string::String, rustc_serialize::json::Json>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toucan`
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[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" "2e3707f257c79a8f0524e95501f2ba954386a242ca1635c070f4b52fa9a9123d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e3707f257c79a8f0524e95501f2ba954386a242ca1635c070f4b52fa9a9123d", kill_on_drop: false }`
[INFO] [stdout] 2e3707f257c79a8f0524e95501f2ba954386a242ca1635c070f4b52fa9a9123d