[INFO] cloning repository https://github.com/joppich/csvgen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joppich/csvgen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoppich%2Fcsvgen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoppich%2Fcsvgen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0078bc716dbdf77310bcc84fde21e1c7570b231
[INFO] checking joppich/csvgen against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoppich%2Fcsvgen" "/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/joppich/csvgen on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joppich/csvgen
[INFO] finished tweaking git repo https://github.com/joppich/csvgen
[INFO] tweaked toml for git repo https://github.com/joppich/csvgen written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/joppich/csvgen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4374784e92d432b34fdf24c1dccdf47495fe9c788eb199522205ae451c2ccc5
[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" "a4374784e92d432b34fdf24c1dccdf47495fe9c788eb199522205ae451c2ccc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4374784e92d432b34fdf24c1dccdf47495fe9c788eb199522205ae451c2ccc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4374784e92d432b34fdf24c1dccdf47495fe9c788eb199522205ae451c2ccc5", kill_on_drop: false }`
[INFO] [stdout] a4374784e92d432b34fdf24c1dccdf47495fe9c788eb199522205ae451c2ccc5
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb90c24a094bfde5e5614274af4213357b9d1bcecc28d53717e446725d0de336
[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" "cb90c24a094bfde5e5614274af4213357b9d1bcecc28d53717e446725d0de336", kill_on_drop: false }`
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking csvgen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `choose` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stdout]   --> src/generator.rs:43:40
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         r_val.push(rng.choose(&STR_SOURCE).unwrap());
[INFO] [stdout]    |                                        ^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `csvgen`.
[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] [stdout] error[E0599]: no method named `choose` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stdout]   --> src/generator.rs:43:40
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         r_val.push(rng.choose(&STR_SOURCE).unwrap());
[INFO] [stdout]    |                                        ^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cb90c24a094bfde5e5614274af4213357b9d1bcecc28d53717e446725d0de336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb90c24a094bfde5e5614274af4213357b9d1bcecc28d53717e446725d0de336", kill_on_drop: false }`
[INFO] [stdout] cb90c24a094bfde5e5614274af4213357b9d1bcecc28d53717e446725d0de336