[INFO] cloning repository https://github.com/dantesbytes/rust-file-compression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dantesbytes/rust-file-compression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdantesbytes%2Frust-file-compression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdantesbytes%2Frust-file-compression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b3f007c74d314b38be45843d0195807ee8c8829
[INFO] checking dantesbytes/rust-file-compression against try#51de2e90f91fdec6cf64ff542a4e15b9c177a797 for pr-147294
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdantesbytes%2Frust-file-compression" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dantesbytes/rust-file-compression
[INFO] finished tweaking git repo https://github.com/dantesbytes/rust-file-compression
[INFO] tweaked toml for git repo https://github.com/dantesbytes/rust-file-compression written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dantesbytes/rust-file-compression on toolchain 51de2e90f91fdec6cf64ff542a4e15b9c177a797
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dantesbytes/rust-file-compression 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" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ccab7feaba8de32be3f5b1d64b7ec6ba17e09e1cffb705ab254b57ff1cb05f9
[INFO] running `Command { std: "docker" "start" "-a" "9ccab7feaba8de32be3f5b1d64b7ec6ba17e09e1cffb705ab254b57ff1cb05f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ccab7feaba8de32be3f5b1d64b7ec6ba17e09e1cffb705ab254b57ff1cb05f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ccab7feaba8de32be3f5b1d64b7ec6ba17e09e1cffb705ab254b57ff1cb05f9", kill_on_drop: false }`
[INFO] [stdout] 9ccab7feaba8de32be3f5b1d64b7ec6ba17e09e1cffb705ab254b57ff1cb05f9
[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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4d95db2d1e6263be866deb5ca3690ae9098d1b9e59a4343b60d58925eb211a1
[INFO] running `Command { std: "docker" "start" "-a" "a4d95db2d1e6263be866deb5ca3690ae9098d1b9e59a4343b60d58925eb211a1", kill_on_drop: false }`
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking rust_compression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `crate` or `{`, found `create`
[INFO] [stdout]  --> src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern create flate2;
[INFO] [stdout]   |        ^^^^^^ expected one of `crate` or `{`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a keyword `crate` with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 1 - extern create flate2;
[INFO] [stdout] 1 + extern crate flate2;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_compression` (bin "rust_compression" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: expected one of `crate` or `{`, found `create`
[INFO] [stdout]  --> src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern create flate2;
[INFO] [stdout]   |        ^^^^^^ expected one of `crate` or `{`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a keyword `crate` with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 1 - extern create flate2;
[INFO] [stdout] 1 + extern crate flate2;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_compression` (bin "rust_compression") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a4d95db2d1e6263be866deb5ca3690ae9098d1b9e59a4343b60d58925eb211a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d95db2d1e6263be866deb5ca3690ae9098d1b9e59a4343b60d58925eb211a1", kill_on_drop: false }`
[INFO] [stdout] a4d95db2d1e6263be866deb5ca3690ae9098d1b9e59a4343b60d58925eb211a1