[INFO] cloning repository https://github.com/hinohi/test-serde
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hinohi/test-serde" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhinohi%2Ftest-serde", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhinohi%2Ftest-serde'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1dca2342baccdeee5f19e9012a989702d0db4b5a
[INFO] testing hinohi/test-serde against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhinohi%2Ftest-serde" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hinohi/test-serde on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hinohi/test-serde
[INFO] finished tweaking git repo https://github.com/hinohi/test-serde
[INFO] tweaked toml for git repo https://github.com/hinohi/test-serde written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/hinohi/test-serde already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45e588478612ce7ec9e638a9414a6c81f423cdd2f4f1868cb3d3ce8f38047d04
[INFO] running `Command { std: "docker" "start" "-a" "45e588478612ce7ec9e638a9414a6c81f423cdd2f4f1868cb3d3ce8f38047d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45e588478612ce7ec9e638a9414a6c81f423cdd2f4f1868cb3d3ce8f38047d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45e588478612ce7ec9e638a9414a6c81f423cdd2f4f1868cb3d3ce8f38047d04", kill_on_drop: false }`
[INFO] [stdout] 45e588478612ce7ec9e638a9414a6c81f423cdd2f4f1868cb3d3ce8f38047d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05ef8f37e10f4a8dbb6115046e239900f37298bc5fed1a5be3d0c2b6f9be77e0
[INFO] running `Command { std: "docker" "start" "-a" "05ef8f37e10f4a8dbb6115046e239900f37298bc5fed1a5be3d0c2b6f9be77e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling safemem v0.3.0
[INFO] [stderr]    Compiling iter-read v0.1.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling dtoa v0.4.3
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling rmp v0.8.7
[INFO] [stderr]    Compiling syn v0.15.7
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling ron v0.4.0
[INFO] [stderr]    Compiling serde_yaml v0.8.5
[INFO] [stderr]    Compiling rmp-serde v0.13.7
[INFO] [stderr]    Compiling serde_json v1.0.31
[INFO] [stderr]    Compiling serde-pickle v0.4.1
[INFO] [stderr]    Compiling toml v0.4.8
[INFO] [stderr]    Compiling serde-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `test`
[INFO] [stdout]  --> src/pf.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use test;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde-test` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "05ef8f37e10f4a8dbb6115046e239900f37298bc5fed1a5be3d0c2b6f9be77e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ef8f37e10f4a8dbb6115046e239900f37298bc5fed1a5be3d0c2b6f9be77e0", kill_on_drop: false }`
[INFO] [stdout] 05ef8f37e10f4a8dbb6115046e239900f37298bc5fed1a5be3d0c2b6f9be77e0