[INFO] cloning repository https://github.com/HermannDppes/doctails
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HermannDppes/doctails" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermannDppes%2Fdoctails"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermannDppes%2Fdoctails'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4c382121bcec8d7b0a37449d13b383eb1743032d
[INFO] checking HermannDppes/doctails against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermannDppes%2Fdoctails" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HermannDppes/doctails on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/HermannDppes/doctails
[INFO] finished tweaking git repo https://github.com/HermannDppes/doctails
[INFO] tweaked toml for git repo https://github.com/HermannDppes/doctails written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/HermannDppes/doctails already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8e428aaf28917d2cf912b32002be64e6d3fba154054ea7848ac627b2a091bc23
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8e428aaf28917d2cf912b32002be64e6d3fba154054ea7848ac627b2a091bc23"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.16
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.75
[INFO] [stderr]     Checking half v1.1.2
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling serde_derive v1.0.76
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking doctails v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ui.rs:16:48
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn put_pack(pack: &Pack) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ui.rs:22:39
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn get_pack() -> Result<Pack, Box<Error>> {
[INFO] [stderr]    |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ui.rs:16:48
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn put_pack(pack: &Pack) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ui.rs:22:39
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn get_pack() -> Result<Pack, Box<Error>> {
[INFO] [stderr]    |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.18s
[INFO] running `"docker" "inspect" "8e428aaf28917d2cf912b32002be64e6d3fba154054ea7848ac627b2a091bc23"`
[INFO] running `"docker" "rm" "-f" "8e428aaf28917d2cf912b32002be64e6d3fba154054ea7848ac627b2a091bc23"`
[INFO] [stdout] 8e428aaf28917d2cf912b32002be64e6d3fba154054ea7848ac627b2a091bc23