[INFO] cloning repository https://github.com/aisamanra/xargo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aisamanra/xargo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faisamanra%2Fxargo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faisamanra%2Fxargo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b67abf8c1ad5e129618117715a10acf8aacadf6d
[INFO] testing aisamanra/xargo against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faisamanra%2Fxargo" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aisamanra/xargo on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aisamanra/xargo
[INFO] finished tweaking git repo https://github.com/aisamanra/xargo
[INFO] tweaked toml for git repo https://github.com/aisamanra/xargo written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/aisamanra/xargo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot_core v0.2.0
[INFO] [stderr]   Downloaded serde v0.8.21
[INFO] [stderr]   Downloaded parking_lot v0.3.6
[INFO] [stderr]   Downloaded fs2 v0.4.1
[INFO] [stderr]   Downloaded walkdir v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b47488982fdedfbffa0d6ca6a8ae1fdd2a2168f9d0b16381f25904e18402d24e
[INFO] running `Command { std: "docker" "start" "-a" "b47488982fdedfbffa0d6ca6a8ae1fdd2a2168f9d0b16381f25904e18402d24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b47488982fdedfbffa0d6ca6a8ae1fdd2a2168f9d0b16381f25904e18402d24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b47488982fdedfbffa0d6ca6a8ae1fdd2a2168f9d0b16381f25904e18402d24e", kill_on_drop: false }`
[INFO] [stdout] b47488982fdedfbffa0d6ca6a8ae1fdd2a2168f9d0b16381f25904e18402d24e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d7d2aa061802fd65f2709d13cf4de601dcb6d7ca44ddab7eece844079b4e1756
[INFO] running `Command { std: "docker" "start" "-a" "d7d2aa061802fd65f2709d13cf4de601dcb6d7ca44ddab7eece844079b4e1756", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling xargo v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v0.8.21
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling walkdir v1.0.3
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling fs2 v0.4.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling serde_json v0.8.4
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stdout] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stdout]  --> src/errors.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![allow(unused_doc_comment)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/flock.rs:149:11
[INFO] [stdout]     |
[INFO] [stdout] 149 |     try: &Fn() -> io::Result<()>,
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> io::Result<()>`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/main.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/flock.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |     block: &Fn() -> io::Result<()>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> io::Result<()>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/xargo.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         env::home_dir()
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xargo`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d7d2aa061802fd65f2709d13cf4de601dcb6d7ca44ddab7eece844079b4e1756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7d2aa061802fd65f2709d13cf4de601dcb6d7ca44ddab7eece844079b4e1756", kill_on_drop: false }`
[INFO] [stdout] d7d2aa061802fd65f2709d13cf4de601dcb6d7ca44ddab7eece844079b4e1756