[INFO] cloning repository https://github.com/david-pikas/exjobb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/david-pikas/exjobb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-pikas%2Fexjobb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-pikas%2Fexjobb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d166b65246c526ca2e2777151c7f10c8e0ecc681
[INFO] checking david-pikas/exjobb against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-pikas%2Fexjobb" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/david-pikas/exjobb on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/david-pikas/exjobb
[INFO] finished tweaking git repo https://github.com/david-pikas/exjobb
[INFO] tweaked toml for git repo https://github.com/david-pikas/exjobb written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/david-pikas/exjobb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c8a40392e89107e727a9896d46fb4f13e26753b704e1ad6c10c173fef5912d4
[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" "0c8a40392e89107e727a9896d46fb4f13e26753b704e1ad6c10c173fef5912d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c8a40392e89107e727a9896d46fb4f13e26753b704e1ad6c10c173fef5912d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c8a40392e89107e727a9896d46fb4f13e26753b704e1ad6c10c173fef5912d4", kill_on_drop: false }`
[INFO] [stdout] 0c8a40392e89107e727a9896d46fb4f13e26753b704e1ad6c10c173fef5912d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa1a22b32b1b6fbb2e4576d0829ff95192f04e8f439e0de74c35a293d3f3dfb5
[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" "aa1a22b32b1b6fbb2e4576d0829ff95192f04e8f439e0de74c35a293d3f3dfb5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v723.0.0
[INFO] [stderr]     Checking cpufeatures v0.1.1
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v723.0.0
[INFO] [stderr]     Checking arbitrary v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling psm v0.1.12
[INFO] [stderr]    Compiling stacker v0.1.13
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v723.0.0
[INFO] [stderr]     Checking proc-macro2 v1.0.26
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v723.0.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking syn v1.0.72
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v723.0.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking perf-event-open-sys v1.0.1
[INFO] [stderr]     Checking memmap2 v0.2.2
[INFO] [stderr]     Checking jobserver v0.1.22
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termize v0.1.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking filedescriptor v0.8.0
[INFO] [stderr]     Checking rustc-rayon-core v0.3.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking measureme v9.1.1
[INFO] [stderr]     Checking rustc-rayon v0.3.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rustc-ap-rustc_index v723.0.0
[INFO] [stderr]     Checking gag v1.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v723.0.0
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]     Checking rustc-ap-rustc_arena v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_target v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_feature v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_lint_defs v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast_pretty v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_session v723.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_parse v723.0.0
[INFO] [stderr]     Checking rustsmith v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.21s
[INFO] running `Command { std: "docker" "inspect" "aa1a22b32b1b6fbb2e4576d0829ff95192f04e8f439e0de74c35a293d3f3dfb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa1a22b32b1b6fbb2e4576d0829ff95192f04e8f439e0de74c35a293d3f3dfb5", kill_on_drop: false }`
[INFO] [stdout] aa1a22b32b1b6fbb2e4576d0829ff95192f04e8f439e0de74c35a293d3f3dfb5