[INFO] cloning repository https://github.com/luke-bhan/arbre
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luke-bhan/arbre" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluke-bhan%2Farbre", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluke-bhan%2Farbre'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d600525795cde8c958366113080e4a58d82fcbfc
[INFO] checking luke-bhan/arbre against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluke-bhan%2Farbre" "/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/luke-bhan/arbre 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/luke-bhan/arbre
[INFO] finished tweaking git repo https://github.com/luke-bhan/arbre
[INFO] tweaked toml for git repo https://github.com/luke-bhan/arbre written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/luke-bhan/arbre 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] 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" "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] a9493969f5d6252d2d8c61c6e187b719e0a6dbe6ed28817d341f8c80557f427c
[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" "a9493969f5d6252d2d8c61c6e187b719e0a6dbe6ed28817d341f8c80557f427c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9493969f5d6252d2d8c61c6e187b719e0a6dbe6ed28817d341f8c80557f427c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9493969f5d6252d2d8c61c6e187b719e0a6dbe6ed28817d341f8c80557f427c", kill_on_drop: false }`
[INFO] [stdout] a9493969f5d6252d2d8c61c6e187b719e0a6dbe6ed28817d341f8c80557f427c
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fe035e7ce533df1c0b2c7c31e14b5f9c95d7871a83b37455d005b17be088f9f2
[INFO] running `Command { std: "docker" "start" "-a" "fe035e7ce533df1c0b2c7c31e14b5f9c95d7871a83b37455d005b17be088f9f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking arbre v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `GIT_AUTHOR_NAME` not defined
[INFO] [stdout]   --> src/main.rs:81:28
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 let name = env!("GIT_AUTHOR_NAME").to_string();
[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: environment variable `GIT_AUTHOR_EMAIL` not defined
[INFO] [stdout]   --> src/main.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 let email = env!("GIT_AUTHOR_EMAIL").to_string();
[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: environment variable `GIT_AUTHOR_NAME` not defined
[INFO] [stdout]   --> src/main.rs:81:28
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 let name = env!("GIT_AUTHOR_NAME").to_string();
[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: environment variable `GIT_AUTHOR_EMAIL` not defined
[INFO] [stdout]   --> src/main.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 let email = env!("GIT_AUTHOR_EMAIL").to_string();
[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: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `arbre`
[INFO] [stderr] 
[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" "fe035e7ce533df1c0b2c7c31e14b5f9c95d7871a83b37455d005b17be088f9f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe035e7ce533df1c0b2c7c31e14b5f9c95d7871a83b37455d005b17be088f9f2", kill_on_drop: false }`
[INFO] [stdout] fe035e7ce533df1c0b2c7c31e14b5f9c95d7871a83b37455d005b17be088f9f2