[INFO] fetching crate irust 0.8.6...
[INFO] checking irust-0.8.6 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate irust 0.8.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate irust 0.8.6 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate irust 0.8.6
[INFO] finished tweaking crates.io crate irust 0.8.6
[INFO] tweaked toml for crates.io crate irust 0.8.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate irust 0.8.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plist v1.0.0
[INFO] [stderr]   Downloaded syntect v4.2.0
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d14b1e65415e19bfa9b8ea0ac60760f5d1c6583f72a25744a97114dea633e7d2
[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" "d14b1e65415e19bfa9b8ea0ac60760f5d1c6583f72a25744a97114dea633e7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d14b1e65415e19bfa9b8ea0ac60760f5d1c6583f72a25744a97114dea633e7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14b1e65415e19bfa9b8ea0ac60760f5d1c6583f72a25744a97114dea633e7d2", kill_on_drop: false }`
[INFO] [stdout] d14b1e65415e19bfa9b8ea0ac60760f5d1c6583f72a25744a97114dea633e7d2
[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" "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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--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] be4ca9ead5446a7307253311b0dfba23959d536d475d678de37030bdd383e573
[INFO] running `Command { std: "docker" "start" "-a" "be4ca9ead5446a7307253311b0dfba23959d536d475d678de37030bdd383e573", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking safemem v0.3.2
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking xml-rs v0.8.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking lock_api v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]     Checking miniz_oxide v0.3.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]     Checking fancy-regex v0.3.5
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking signal-hook v0.1.15
[INFO] [stderr]     Checking crossterm v0.17.5
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking plist v1.0.0
[INFO] [stderr]     Checking syntect v4.2.0
[INFO] [stderr]     Checking irust v0.8.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.07s
[INFO] running `Command { std: "docker" "inspect" "be4ca9ead5446a7307253311b0dfba23959d536d475d678de37030bdd383e573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be4ca9ead5446a7307253311b0dfba23959d536d475d678de37030bdd383e573", kill_on_drop: false }`
[INFO] [stdout] be4ca9ead5446a7307253311b0dfba23959d536d475d678de37030bdd383e573