[INFO] cloning repository https://github.com/johnt7/sampleRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnt7/sampleRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnt7%2FsampleRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnt7%2FsampleRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e6144b6c960e75d8054e64cdc89375207ee4607
[INFO] testing johnt7/sampleRust against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnt7%2FsampleRust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnt7/sampleRust on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnt7/sampleRust
[INFO] finished tweaking git repo https://github.com/johnt7/sampleRust
[INFO] tweaked toml for git repo https://github.com/johnt7/sampleRust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/johnt7/sampleRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f29cfdf95d766f4d9cdb4e28b9c12d155741081fe0d26fbe480ef66ae48a2a2
[INFO] running `Command { std: "docker" "start" "-a" "2f29cfdf95d766f4d9cdb4e28b9c12d155741081fe0d26fbe480ef66ae48a2a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f29cfdf95d766f4d9cdb4e28b9c12d155741081fe0d26fbe480ef66ae48a2a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f29cfdf95d766f4d9cdb4e28b9c12d155741081fe0d26fbe480ef66ae48a2a2", kill_on_drop: false }`
[INFO] [stdout] 2f29cfdf95d766f4d9cdb4e28b9c12d155741081fe0d26fbe480ef66ae48a2a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43e1d0ec726f10545553d5d2fe0adf3d8b4952ae775977007d85bc06a4108310
[INFO] running `Command { std: "docker" "start" "-a" "43e1d0ec726f10545553d5d2fe0adf3d8b4952ae775977007d85bc06a4108310", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling demoproj v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     match fallible2jt(x) {
[INFO] [stdout]    |           -------------- this expression has type `Jtres<String, u64>`
[INFO] [stdout] 87 |         Ok(s) => println!("worked 2={}", s),
[INFO] [stdout]    |         ^^^^^ expected enum `Jtres`, found enum `Result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Jtres<String, u64>`
[INFO] [stdout]               found enum `Result<_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     match fallible2jt(x) {
[INFO] [stdout]    |           -------------- this expression has type `Jtres<String, u64>`
[INFO] [stdout] 87 |         Ok(s) => println!("worked 2={}", s),
[INFO] [stdout] 88 |         Err(e) => println!("error 2={}", e)
[INFO] [stdout]    |         ^^^^^^ expected enum `Jtres`, found enum `Result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Jtres<String, u64>`
[INFO] [stdout]               found enum `Result<_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `demoproj` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "43e1d0ec726f10545553d5d2fe0adf3d8b4952ae775977007d85bc06a4108310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43e1d0ec726f10545553d5d2fe0adf3d8b4952ae775977007d85bc06a4108310", kill_on_drop: false }`
[INFO] [stdout] 43e1d0ec726f10545553d5d2fe0adf3d8b4952ae775977007d85bc06a4108310