[INFO] cloning repository https://github.com/ultimate-research/prc-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ultimate-research/prc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultimate-research%2Fprc-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultimate-research%2Fprc-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7b2cd16ffc501b6142950dcdbc8dcf4e11914f1
[INFO] checking ultimate-research/prc-rs against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultimate-research%2Fprc-rs" "/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/ultimate-research/prc-rs on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ultimate-research/prc-rs
[INFO] finished tweaking git repo https://github.com/ultimate-research/prc-rs
[INFO] tweaked toml for git repo https://github.com/ultimate-research/prc-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-2/source/param-xml/Cargo.toml: only one of `license` or `license-file` is necessary
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compile-time-crc32 v0.1.2
[INFO] [stderr]   Downloaded diff-struct v0.3.1
[INFO] [stderr]   Downloaded hash40 v0.4.4
[INFO] [stderr]   Downloaded diff_derive v0.1.2
[INFO] [stderr]   Downloaded quick-xml v0.18.1
[INFO] [stderr]   Downloaded compile-time-crc32-impl v0.1.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 796aece678ef9266412c1aa3f26cba8077bc00fbbc94e1a14a452ef33946398c
[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" "796aece678ef9266412c1aa3f26cba8077bc00fbbc94e1a14a452ef33946398c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "796aece678ef9266412c1aa3f26cba8077bc00fbbc94e1a14a452ef33946398c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "796aece678ef9266412c1aa3f26cba8077bc00fbbc94e1a14a452ef33946398c", kill_on_drop: false }`
[INFO] [stdout] 796aece678ef9266412c1aa3f26cba8077bc00fbbc94e1a14a452ef33946398c
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d09f93ab3a5c12de2490a90cabe91833137eef67a68081e8c27e7e9ca8039ef7
[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" "d09f93ab3a5c12de2490a90cabe91833137eef67a68081e8c27e7e9ca8039ef7", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/param-xml/Cargo.toml: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking bimap v0.4.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling compile-time-crc32-impl v0.1.0
[INFO] [stderr]    Compiling diff_derive v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking compile-time-crc32 v0.1.2
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]     Checking diff-struct v0.3.1
[INFO] [stderr]     Checking hash40 v0.4.4
[INFO] [stderr]     Checking prc-rs v1.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/xml/mod.rs:40:6
[INFO] [stdout]    |
[INFO] [stdout] 40 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/xml/mod.rs:40:6
[INFO] [stdout]    |
[INFO] [stdout] 40 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking param-xml v1.0.0 (/opt/rustwide/workdir/param-xml)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.44s
[INFO] running `Command { std: "docker" "inspect" "d09f93ab3a5c12de2490a90cabe91833137eef67a68081e8c27e7e9ca8039ef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d09f93ab3a5c12de2490a90cabe91833137eef67a68081e8c27e7e9ca8039ef7", kill_on_drop: false }`
[INFO] [stdout] d09f93ab3a5c12de2490a90cabe91833137eef67a68081e8c27e7e9ca8039ef7