[INFO] cloning repository https://github.com/ShapkinSA/HelloWorldRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShapkinSA/HelloWorldRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapkinSA%2FHelloWorldRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapkinSA%2FHelloWorldRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b78cd65c4d33a6076f442cec3b29c77beba23c15
[INFO] checking ShapkinSA/HelloWorldRust against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapkinSA%2FHelloWorldRust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShapkinSA/HelloWorldRust on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShapkinSA/HelloWorldRust
[INFO] finished tweaking git repo https://github.com/ShapkinSA/HelloWorldRust
[INFO] tweaked toml for git repo https://github.com/ShapkinSA/HelloWorldRust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ShapkinSA/HelloWorldRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8927f28bcb69654b6eb143908b86a47b76f21926ff48db08b4fdcdaa574e511a
[INFO] running `Command { std: "docker" "start" "-a" "8927f28bcb69654b6eb143908b86a47b76f21926ff48db08b4fdcdaa574e511a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8927f28bcb69654b6eb143908b86a47b76f21926ff48db08b4fdcdaa574e511a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8927f28bcb69654b6eb143908b86a47b76f21926ff48db08b4fdcdaa574e511a", kill_on_drop: false }`
[INFO] [stdout] 8927f28bcb69654b6eb143908b86a47b76f21926ff48db08b4fdcdaa574e511a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b308e3d6a4398dd91ff1f8cdf52cece313713ddac13c8fc848a9aac771497b4b
[INFO] running `Command { std: "docker" "start" "-a" "b308e3d6a4398dd91ff1f8cdf52cece313713ddac13c8fc848a9aac771497b4b", kill_on_drop: false }`
[INFO] [stderr]     Checking HelloWorldRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0502]: cannot borrow `x` as immutable because it is also borrowed as mutable
[INFO] [stdout]   --> src/bin/expressions.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 6  |     let r : &mut i32 = &mut x;
[INFO] [stdout]    |                        ------ mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 10 |     println!("{x}");
[INFO] [stdout]    |               ^^^ immutable borrow occurs here
[INFO] [stdout] 11 |
[INFO] [stdout] 12 |     *r+=1;
[INFO] [stdout]    |     ----- mutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `HelloWorldRust` (bin "expressions" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b308e3d6a4398dd91ff1f8cdf52cece313713ddac13c8fc848a9aac771497b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b308e3d6a4398dd91ff1f8cdf52cece313713ddac13c8fc848a9aac771497b4b", kill_on_drop: false }`
[INFO] [stdout] b308e3d6a4398dd91ff1f8cdf52cece313713ddac13c8fc848a9aac771497b4b
[INFO] checking ShapkinSA/HelloWorldRust against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapkinSA%2FHelloWorldRust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShapkinSA/HelloWorldRust on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShapkinSA/HelloWorldRust
[INFO] finished tweaking git repo https://github.com/ShapkinSA/HelloWorldRust
[INFO] tweaked toml for git repo https://github.com/ShapkinSA/HelloWorldRust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ShapkinSA/HelloWorldRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f14959bff528c5f1452a8bee69a1dcf3892b068bfbe61508d2b39bbbad7a5242
[INFO] running `Command { std: "docker" "start" "-a" "f14959bff528c5f1452a8bee69a1dcf3892b068bfbe61508d2b39bbbad7a5242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f14959bff528c5f1452a8bee69a1dcf3892b068bfbe61508d2b39bbbad7a5242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f14959bff528c5f1452a8bee69a1dcf3892b068bfbe61508d2b39bbbad7a5242", kill_on_drop: false }`
[INFO] [stdout] f14959bff528c5f1452a8bee69a1dcf3892b068bfbe61508d2b39bbbad7a5242
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc54a888bb17ac9207f3b382a1369877099f9625662162671e73207a8ac3327e
[INFO] running `Command { std: "docker" "start" "-a" "cc54a888bb17ac9207f3b382a1369877099f9625662162671e73207a8ac3327e", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "cc54a888bb17ac9207f3b382a1369877099f9625662162671e73207a8ac3327e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc54a888bb17ac9207f3b382a1369877099f9625662162671e73207a8ac3327e", kill_on_drop: false }`
[INFO] [stdout] cc54a888bb17ac9207f3b382a1369877099f9625662162671e73207a8ac3327e