[INFO] cloning repository https://github.com/la10736/rust_hero_2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/la10736/rust_hero_2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fla10736%2Frust_hero_2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fla10736%2Frust_hero_2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04c2e743cd8eebc31b7ea3ab3b16a597faa6fcb5
[INFO] checking la10736/rust_hero_2019 against master#96cfc75584359ae7ad11cc45968059f29e7b44b7 for pr-137728
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fla10736%2Frust_hero_2019" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/la10736/rust_hero_2019 on toolchain 96cfc75584359ae7ad11cc45968059f29e7b44b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/la10736/rust_hero_2019
[INFO] finished tweaking git repo https://github.com/la10736/rust_hero_2019
[INFO] tweaked toml for git repo https://github.com/la10736/rust_hero_2019 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/la10736/rust_hero_2019 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" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rstest v0.2.2
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b51788c3f076ee18ef92a267f3b0449d010f86a7765e58bd784952dda6a2e03
[INFO] running `Command { std: "docker" "start" "-a" "0b51788c3f076ee18ef92a267f3b0449d010f86a7765e58bd784952dda6a2e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b51788c3f076ee18ef92a267f3b0449d010f86a7765e58bd784952dda6a2e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b51788c3f076ee18ef92a267f3b0449d010f86a7765e58bd784952dda6a2e03", kill_on_drop: false }`
[INFO] [stdout] 0b51788c3f076ee18ef92a267f3b0449d010f86a7765e58bd784952dda6a2e03
[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=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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef64b9bf24e4ed01d7b00df991efd63a6922bd7db8aac05ccd1ae87624b9fb45
[INFO] running `Command { std: "docker" "start" "-a" "ef64b9bf24e4ed01d7b00df991efd63a6922bd7db8aac05ccd1ae87624b9fb45", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking encoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rstest v0.2.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.31s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "ef64b9bf24e4ed01d7b00df991efd63a6922bd7db8aac05ccd1ae87624b9fb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef64b9bf24e4ed01d7b00df991efd63a6922bd7db8aac05ccd1ae87624b9fb45", kill_on_drop: false }`
[INFO] [stdout] ef64b9bf24e4ed01d7b00df991efd63a6922bd7db8aac05ccd1ae87624b9fb45