[INFO] cloning repository https://github.com/arpan-dhatt/random-shakespeare-lines
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arpan-dhatt/random-shakespeare-lines" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farpan-dhatt%2Frandom-shakespeare-lines", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farpan-dhatt%2Frandom-shakespeare-lines'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 932bd7d2d8cb90fc28417f7711c6feaeb4bb46a7
[INFO] checking arpan-dhatt/random-shakespeare-lines against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farpan-dhatt%2Frandom-shakespeare-lines" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arpan-dhatt/random-shakespeare-lines on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arpan-dhatt/random-shakespeare-lines
[INFO] finished tweaking git repo https://github.com/arpan-dhatt/random-shakespeare-lines
[INFO] tweaked toml for git repo https://github.com/arpan-dhatt/random-shakespeare-lines written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/arpan-dhatt/random-shakespeare-lines already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded multipart v0.17.1
[INFO] [stderr]   Downloaded headers v0.3.3
[INFO] [stderr]   Downloaded once_cell v1.6.0
[INFO] [stderr]   Downloaded tracing v0.1.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c35afa1c0db0eb606c62bc758ab8a8c49bafb7eb922bf5909d42eab79080a80b
[INFO] running `Command { std: "docker" "start" "-a" "c35afa1c0db0eb606c62bc758ab8a8c49bafb7eb922bf5909d42eab79080a80b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c35afa1c0db0eb606c62bc758ab8a8c49bafb7eb922bf5909d42eab79080a80b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c35afa1c0db0eb606c62bc758ab8a8c49bafb7eb922bf5909d42eab79080a80b", kill_on_drop: false }`
[INFO] [stdout] c35afa1c0db0eb606c62bc758ab8a8c49bafb7eb922bf5909d42eab79080a80b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 301eeac771bd93ac6a5449b78e3001ccfedccc2638f106924e43e5bb2a9117c3
[INFO] running `Command { std: "docker" "start" "-a" "301eeac771bd93ac6a5449b78e3001ccfedccc2638f106924e43e5bb2a9117c3", 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] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking once_cell v1.6.0
[INFO] [stderr]     Checking safemem v0.3.3
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[INFO] [stderr]     Checking quick-error v1.2.3
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[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
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[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking tracing v0.1.24
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]    Compiling syn v1.0.60
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[INFO] [stderr]     Checking buf_redux v0.8.4
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[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking digest v0.9.0
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[INFO] [stderr]     Checking sha-1 v0.9.4
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[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
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[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-util v0.6.3
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[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking warp v0.3.0
[INFO] [stderr]     Checking shakespeare-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `rc::Rc`, `thread`
[INFO] [stdout]  --> src/main.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::read_to_string, rc::Rc, sync::Arc, thread};
[INFO] [stdout]   |                               ^^^^^^             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/main.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{self, Rng, thread_rng};
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `rc::Rc`, `thread`
[INFO] [stdout]  --> src/main.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::read_to_string, rc::Rc, sync::Arc, thread};
[INFO] [stdout]   |                               ^^^^^^             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/main.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{self, Rng, thread_rng};
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.63s
[INFO] running `Command { std: "docker" "inspect" "301eeac771bd93ac6a5449b78e3001ccfedccc2638f106924e43e5bb2a9117c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "301eeac771bd93ac6a5449b78e3001ccfedccc2638f106924e43e5bb2a9117c3", kill_on_drop: false }`
[INFO] [stdout] 301eeac771bd93ac6a5449b78e3001ccfedccc2638f106924e43e5bb2a9117c3