[INFO] fetching crate track8-program 1.0.0...
[INFO] checking track8-program-1.0.0 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate track8-program 1.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate track8-program 1.0.0 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate track8-program 1.0.0
[INFO] finished tweaking crates.io crate track8-program 1.0.0
[INFO] tweaked toml for crates.io crate track8-program 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.5.21)
[INFO] [stderr]       Adding derive_more v0.9.0 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_more v0.9.0
[INFO] [stderr]   Downloaded syn v0.12.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4598df6386c2dc9306478f6770f1fd70794273fe818103fad86b0990661218c6
[INFO] running `Command { std: "docker" "start" "-a" "4598df6386c2dc9306478f6770f1fd70794273fe818103fad86b0990661218c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4598df6386c2dc9306478f6770f1fd70794273fe818103fad86b0990661218c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4598df6386c2dc9306478f6770f1fd70794273fe818103fad86b0990661218c6", kill_on_drop: false }`
[INFO] [stdout] 4598df6386c2dc9306478f6770f1fd70794273fe818103fad86b0990661218c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e7c80dc70541da5aff3b995f464c9f26c08babd549e788786b30aca1b88b967
[INFO] running `Command { std: "docker" "start" "-a" "7e7c80dc70541da5aff3b995f464c9f26c08babd549e788786b30aca1b88b967", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling derive_more v0.9.0
[INFO] [stderr]     Checking track8-program v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `let_s` in this scope
[INFO] [stdout]  --> src/test.rs:4:80
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn cst_to_string_invalid(){let v:Vec<C>=vec![C::N(4000000)];let c:CSt=v.into();let_s=c.to_string();}
[INFO] [stdout]   |                                                                                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: you might have meant to introduce a new binding
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn cst_to_string_invalid(){let v:Vec<C>=vec![C::N(4000000)];let c:CSt=v.into();let s=c.to_string();}
[INFO] [stdout]   |                                                                                ~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `track8-program` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7e7c80dc70541da5aff3b995f464c9f26c08babd549e788786b30aca1b88b967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7c80dc70541da5aff3b995f464c9f26c08babd549e788786b30aca1b88b967", kill_on_drop: false }`
[INFO] [stdout] 7e7c80dc70541da5aff3b995f464c9f26c08babd549e788786b30aca1b88b967