[INFO] cloning repository https://github.com/dashed/sentry-rust-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dashed/sentry-rust-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdashed%2Fsentry-rust-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdashed%2Fsentry-rust-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2022bfd05b7b88b540f53d3ec0ae7e236fff18e5
[INFO] documenting dashed/sentry-rust-example against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdashed%2Fsentry-rust-example" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dashed/sentry-rust-example on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dashed/sentry-rust-example
[INFO] finished tweaking git repo https://github.com/dashed/sentry-rust-example
[INFO] tweaked toml for git repo https://github.com/dashed/sentry-rust-example written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/dashed/sentry-rust-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c020ae5afb8808ac0340939dbb46c6c48ab9e99eee2d760fed2ceea39c64a967
[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" "c020ae5afb8808ac0340939dbb46c6c48ab9e99eee2d760fed2ceea39c64a967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c020ae5afb8808ac0340939dbb46c6c48ab9e99eee2d760fed2ceea39c64a967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c020ae5afb8808ac0340939dbb46c6c48ab9e99eee2d760fed2ceea39c64a967", kill_on_drop: false }`
[INFO] [stdout] c020ae5afb8808ac0340939dbb46c6c48ab9e99eee2d760fed2ceea39c64a967
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05b384e85c5b19b6080e3a49136c59fde407894fbe7ef37f0872879d7c1cf4c0
[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" "05b384e85c5b19b6080e3a49136c59fde407894fbe7ef37f0872879d7c1cf4c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling im v14.3.0
[INFO] [stderr]    Compiling sentry v0.18.1
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking backtrace v0.3.48
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[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]     Checking futures-cpupool v0.1.8
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[INFO] [stderr]    Compiling actix_derive v0.3.2
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[INFO] [stderr]     Checking tokio-fs v0.1.7
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[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
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[INFO] [stderr]     Checking trust-dns-proto v0.6.3
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[INFO] [stderr]     Checking serde v1.0.110
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[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking actix-web v0.7.19
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking sentry-types v0.14.1
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]     Checking sentry-actix v0.18.1
[INFO] [stderr]  Documenting sentry-rust-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "05b384e85c5b19b6080e3a49136c59fde407894fbe7ef37f0872879d7c1cf4c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05b384e85c5b19b6080e3a49136c59fde407894fbe7ef37f0872879d7c1cf4c0", kill_on_drop: false }`
[INFO] [stdout] 05b384e85c5b19b6080e3a49136c59fde407894fbe7ef37f0872879d7c1cf4c0