[INFO] cloning repository https://github.com/KaiserPhemi/rustDemo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaiserPhemi/rustDemo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserPhemi%2FrustDemo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserPhemi%2FrustDemo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 351215ab81d659c0faf4e66fdc0ce13a157c6af3
[INFO] testing KaiserPhemi/rustDemo against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserPhemi%2FrustDemo" "/workspace/builds/worker-107/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-107/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KaiserPhemi/rustDemo on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KaiserPhemi/rustDemo
[INFO] finished tweaking git repo https://github.com/KaiserPhemi/rustDemo
[INFO] tweaked toml for git repo https://github.com/KaiserPhemi/rustDemo written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate git repo https://github.com/KaiserPhemi/rustDemo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--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-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4269cbcb2daa5ad5b47d06e846795e4cee22eca5621c1fa6db8eb33f887afc58
[INFO] running `Command { std: "docker" "start" "-a" "4269cbcb2daa5ad5b47d06e846795e4cee22eca5621c1fa6db8eb33f887afc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4269cbcb2daa5ad5b47d06e846795e4cee22eca5621c1fa6db8eb33f887afc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4269cbcb2daa5ad5b47d06e846795e4cee22eca5621c1fa6db8eb33f887afc58", kill_on_drop: false }`
[INFO] [stdout] 4269cbcb2daa5ad5b47d06e846795e4cee22eca5621c1fa6db8eb33f887afc58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bdf6cf75f8186e11a4e5916cb541e95a9c2ea761a8521f6f1796cd313aacc24
[INFO] running `Command { std: "docker" "start" "-a" "1bdf6cf75f8186e11a4e5916cb541e95a9c2ea761a8521f6f1796cd313aacc24", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learning_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/structs_.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | let mut new_person = Person::new("Phemi", "Akinwa");
[INFO] [stdout]    |     ----^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "1bdf6cf75f8186e11a4e5916cb541e95a9c2ea761a8521f6f1796cd313aacc24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bdf6cf75f8186e11a4e5916cb541e95a9c2ea761a8521f6f1796cd313aacc24", kill_on_drop: false }`
[INFO] [stdout] 1bdf6cf75f8186e11a4e5916cb541e95a9c2ea761a8521f6f1796cd313aacc24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d95ac3265437e07b8259ecdd61e7be2002bacc87263a625a9855ab28621c0f20
[INFO] running `Command { std: "docker" "start" "-a" "d95ac3265437e07b8259ecdd61e7be2002bacc87263a625a9855ab28621c0f20", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_learning_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/structs_.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | let mut new_person = Person::new("Phemi", "Akinwa");
[INFO] [stdout]    |     ----^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.86s
[INFO] running `Command { std: "docker" "inspect" "d95ac3265437e07b8259ecdd61e7be2002bacc87263a625a9855ab28621c0f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95ac3265437e07b8259ecdd61e7be2002bacc87263a625a9855ab28621c0f20", kill_on_drop: false }`
[INFO] [stdout] d95ac3265437e07b8259ecdd61e7be2002bacc87263a625a9855ab28621c0f20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 136e716feb03ae7003e26cac201b7b2e2e0e640cc2dc498373a46be4309dea5c
[INFO] running `Command { std: "docker" "start" "-a" "136e716feb03ae7003e26cac201b7b2e2e0e640cc2dc498373a46be4309dea5c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/structs_.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | let mut new_person = Person::new("Phemi", "Akinwa");
[INFO] [stderr]    |     ----^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_learning_demo` (bin "rust_learning_demo" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.77s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_learning_demo-4e32251f1f0dc3a6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "136e716feb03ae7003e26cac201b7b2e2e0e640cc2dc498373a46be4309dea5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136e716feb03ae7003e26cac201b7b2e2e0e640cc2dc498373a46be4309dea5c", kill_on_drop: false }`
[INFO] [stdout] 136e716feb03ae7003e26cac201b7b2e2e0e640cc2dc498373a46be4309dea5c