[INFO] cloning repository https://github.com/ezracelli/proj
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ezracelli/proj" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fezracelli%2Fproj", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fezracelli%2Fproj'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcd94a8a07f9b3dd1b4b7cf66a5868c77758c1db
[INFO] documenting ezracelli/proj 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%2Fezracelli%2Fproj" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ezracelli/proj 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/ezracelli/proj
[INFO] finished tweaking git repo https://github.com/ezracelli/proj
[INFO] tweaked toml for git repo https://github.com/ezracelli/proj written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ezracelli/proj 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 }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 7d420bb45ce105b69ff84f6558953558d94ef83f5b783f776311f7af54b4f29b
[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" "7d420bb45ce105b69ff84f6558953558d94ef83f5b783f776311f7af54b4f29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d420bb45ce105b69ff84f6558953558d94ef83f5b783f776311f7af54b4f29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d420bb45ce105b69ff84f6558953558d94ef83f5b783f776311f7af54b4f29b", kill_on_drop: false }`
[INFO] [stdout] 7d420bb45ce105b69ff84f6558953558d94ef83f5b783f776311f7af54b4f29b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 1a7c07348025eee0c9528443ad3b1c2bbec894fc1e124608c75085de236a1cc9
[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" "1a7c07348025eee0c9528443ad3b1c2bbec894fc1e124608c75085de236a1cc9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]  Documenting proj v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `SHELL` not defined
[INFO] [stdout]    --> src/main.rs:212:25
[INFO] [stdout]     |
[INFO] [stdout] 212 |             let shell = env!("SHELL");
[INFO] [stdout]     |                         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `proj`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name proj src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-2d00af1704e04391.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-a7e23c3c1d4e8145.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-2ae9cd59edec41aa.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-27f3229cf447c600.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "1a7c07348025eee0c9528443ad3b1c2bbec894fc1e124608c75085de236a1cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7c07348025eee0c9528443ad3b1c2bbec894fc1e124608c75085de236a1cc9", kill_on_drop: false }`
[INFO] [stdout] 1a7c07348025eee0c9528443ad3b1c2bbec894fc1e124608c75085de236a1cc9