[INFO] updating cached repository https://github.com/Canop/btree
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/Canop/btree
[INFO] [stderr]  * [new branch]      stderr     -> stderr
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b5060a3fa7eccfa9fb5d675bcaff1d45a577581
[INFO] checking Canop/btree against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCanop%2Fbtree" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Canop/btree on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Canop/btree
[INFO] finished tweaking git repo https://github.com/Canop/btree
[INFO] tweaked toml for git repo https://github.com/Canop/btree written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Canop/btree already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1637d61528fb85a9b1173d3ecf6fbe0f653f250a248b7f1b58920db26aabb7f5
[INFO] running `"docker" "start" "-a" "1637d61528fb85a9b1173d3ecf6fbe0f653f250a248b7f1b58920db26aabb7f5"`
[INFO] [stderr]     Checking minimad v0.4.1
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking umask v0.1.5
[INFO] [stderr]     Checking custom_error v1.6.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking crossterm_utils v0.2.3
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking dirs-sys v0.3.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking users v0.9.1
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking lazy-regex v0.1.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking directories v2.0.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking crossterm_cursor v0.2.4
[INFO] [stderr]     Checking crossterm_screen v0.2.3
[INFO] [stderr]     Checking crossterm_style v0.3.3
[INFO] [stderr]     Checking crossterm_input v0.3.6
[INFO] [stderr]     Checking crossterm_terminal v0.2.4
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking simplelog v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]     Checking termimad v0.6.5
[INFO] [stderr]     Checking broot v0.9.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.86s
[INFO] running `"docker" "inspect" "1637d61528fb85a9b1173d3ecf6fbe0f653f250a248b7f1b58920db26aabb7f5"`
[INFO] running `"docker" "rm" "-f" "1637d61528fb85a9b1173d3ecf6fbe0f653f250a248b7f1b58920db26aabb7f5"`
[INFO] [stdout] 1637d61528fb85a9b1173d3ecf6fbe0f653f250a248b7f1b58920db26aabb7f5