[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] checking johnt7/sampleRust against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnt7%2FsampleRust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnt7/sampleRust on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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-3/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d1c083aab8ee5db70edc7aa5460d44a1c7a5d7eff146bf547aab9b8203f0d07
[INFO] running `Command { std: "docker" "start" "-a" "6d1c083aab8ee5db70edc7aa5460d44a1c7a5d7eff146bf547aab9b8203f0d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d1c083aab8ee5db70edc7aa5460d44a1c7a5d7eff146bf547aab9b8203f0d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d1c083aab8ee5db70edc7aa5460d44a1c7a5d7eff146bf547aab9b8203f0d07", kill_on_drop: false }`
[INFO] [stdout] 6d1c083aab8ee5db70edc7aa5460d44a1c7a5d7eff146bf547aab9b8203f0d07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66f57f7d7494214a114e53c987714baacbae6ad50e3ccfbc2a79a8d832ed0dc1
[INFO] running `Command { std: "docker" "start" "-a" "66f57f7d7494214a114e53c987714baacbae6ad50e3ccfbc2a79a8d832ed0dc1", kill_on_drop: false }`
[INFO] [stderr]     Checking 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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] [stderr] error: build failed
[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] running `Command { std: "docker" "inspect" "66f57f7d7494214a114e53c987714baacbae6ad50e3ccfbc2a79a8d832ed0dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f57f7d7494214a114e53c987714baacbae6ad50e3ccfbc2a79a8d832ed0dc1", kill_on_drop: false }`
[INFO] [stdout] 66f57f7d7494214a114e53c987714baacbae6ad50e3ccfbc2a79a8d832ed0dc1