[INFO] cloning repository https://github.com/shenfe/jast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shenfe/jast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshenfe%2Fjast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshenfe%2Fjast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80e6c427da3b3494e091a7c970c3d78821a16148
[INFO] checking shenfe/jast against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshenfe%2Fjast" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shenfe/jast on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shenfe/jast
[INFO] finished tweaking git repo https://github.com/shenfe/jast
[INFO] tweaked toml for git repo https://github.com/shenfe/jast written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/shenfe/jast already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest v1.0.3
[INFO] [stderr]   Downloaded pest_derive v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2f2f2a5907b3a52bf7cbd3adb322e6761939bc05554e27cb1e0e4d929060d73
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d2f2f2a5907b3a52bf7cbd3adb322e6761939bc05554e27cb1e0e4d929060d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2f2f2a5907b3a52bf7cbd3adb322e6761939bc05554e27cb1e0e4d929060d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2f2f2a5907b3a52bf7cbd3adb322e6761939bc05554e27cb1e0e4d929060d73", kill_on_drop: false }`
[INFO] [stdout] d2f2f2a5907b3a52bf7cbd3adb322e6761939bc05554e27cb1e0e4d929060d73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1164d155a59a45d9235b6dcb142bc29c1c582a60acee985a3ee257ab9caaffa6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1164d155a59a45d9235b6dcb142bc29c1c582a60acee985a3ee257ab9caaffa6", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest v1.0.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling pest_derive v1.0.3
[INFO] [stderr]    Compiling jast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read build.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jast`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1164d155a59a45d9235b6dcb142bc29c1c582a60acee985a3ee257ab9caaffa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1164d155a59a45d9235b6dcb142bc29c1c582a60acee985a3ee257ab9caaffa6", kill_on_drop: false }`
[INFO] [stdout] 1164d155a59a45d9235b6dcb142bc29c1c582a60acee985a3ee257ab9caaffa6
