[INFO] cloning repository https://github.com/anderejd/jsonfmt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anderejd/jsonfmt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanderejd%2Fjsonfmt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanderejd%2Fjsonfmt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 859c7d1c42d1c61abda9f051b9071c7049912bcd
[INFO] checking anderejd/jsonfmt/859c7d1c42d1c61abda9f051b9071c7049912bcd against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanderejd%2Fjsonfmt" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anderejd/jsonfmt on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anderejd/jsonfmt
[INFO] finished tweaking git repo https://github.com/anderejd/jsonfmt
[INFO] tweaked toml for git repo https://github.com/anderejd/jsonfmt written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/anderejd/jsonfmt 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" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bdbcaee819ffc776de7f3d781f7f1c23c3eb56faff6be8e5fbbdf066c9680db
[INFO] running `Command { std: "docker" "start" "-a" "2bdbcaee819ffc776de7f3d781f7f1c23c3eb56faff6be8e5fbbdf066c9680db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bdbcaee819ffc776de7f3d781f7f1c23c3eb56faff6be8e5fbbdf066c9680db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bdbcaee819ffc776de7f3d781f7f1c23c3eb56faff6be8e5fbbdf066c9680db", kill_on_drop: false }`
[INFO] [stdout] 2bdbcaee819ffc776de7f3d781f7f1c23c3eb56faff6be8e5fbbdf066c9680db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58e889fd075b7ef4aaa69237193ffbda3b68b696079530db3f0874204d52ba7d
[INFO] running `Command { std: "docker" "start" "-a" "58e889fd075b7ef4aaa69237193ffbda3b68b696079530db3f0874204d52ba7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking pico-args v0.3.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking jsonfmt v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0453]: allow(dead_code) incompatible with previous forbid
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0453`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jsonfmt` (bin "jsonfmt" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "58e889fd075b7ef4aaa69237193ffbda3b68b696079530db3f0874204d52ba7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58e889fd075b7ef4aaa69237193ffbda3b68b696079530db3f0874204d52ba7d", kill_on_drop: false }`
[INFO] [stdout] 58e889fd075b7ef4aaa69237193ffbda3b68b696079530db3f0874204d52ba7d