[INFO] cloning repository https://github.com/gstraymond/gb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gstraymond/gb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgstraymond%2Fgb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgstraymond%2Fgb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5172e5e74c5e31107d232d77af0ebb3a33240e46
[INFO] checking gstraymond/gb against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgstraymond%2Fgb" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gstraymond/gb on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gstraymond/gb
[INFO] finished tweaking git repo https://github.com/gstraymond/gb
[INFO] tweaked toml for git repo https://github.com/gstraymond/gb written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/gstraymond/gb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5c6d35284d701b0c9b63142371cf36e020cfb90c54ae0961d8471eb766fdebb
[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" "d5c6d35284d701b0c9b63142371cf36e020cfb90c54ae0961d8471eb766fdebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5c6d35284d701b0c9b63142371cf36e020cfb90c54ae0961d8471eb766fdebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c6d35284d701b0c9b63142371cf36e020cfb90c54ae0961d8471eb766fdebb", kill_on_drop: false }`
[INFO] [stdout] d5c6d35284d701b0c9b63142371cf36e020cfb90c54ae0961d8471eb766fdebb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] a0e7db9aebe436aadfa950adb5b7e837669c2c35a48983f4c15babf1660ff7f9
[INFO] running `Command { std: "docker" "start" "-a" "a0e7db9aebe436aadfa950adb5b7e837669c2c35a48983f4c15babf1660ff7f9", kill_on_drop: false }`
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking gb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let reader: Box<BufRead> = match matches.value_of("INPUT") {
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let reader: Box<BufRead> = match matches.value_of("INPUT") {
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "a0e7db9aebe436aadfa950adb5b7e837669c2c35a48983f4c15babf1660ff7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0e7db9aebe436aadfa950adb5b7e837669c2c35a48983f4c15babf1660ff7f9", kill_on_drop: false }`
[INFO] [stdout] a0e7db9aebe436aadfa950adb5b7e837669c2c35a48983f4c15babf1660ff7f9