[INFO] cloning repository https://github.com/johalun/sysctlexplorer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johalun/sysctlexplorer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohalun%2Fsysctlexplorer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohalun%2Fsysctlexplorer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3a7beda1dd74ebc3d0b4835fc75b1f975bf6197
[INFO] checking johalun/sysctlexplorer against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohalun%2Fsysctlexplorer" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johalun/sysctlexplorer on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johalun/sysctlexplorer
[INFO] finished tweaking git repo https://github.com/johalun/sysctlexplorer
[INFO] tweaked toml for git repo https://github.com/johalun/sysctlexplorer written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/johalun/sysctlexplorer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-map v0.5.0
[INFO] [stderr]   Downloaded enumset_derive v0.4.0
[INFO] [stderr]   Downloaded log v0.4.7
[INFO] [stderr]   Downloaded enum-map-derive v0.4.1
[INFO] [stderr]   Downloaded array-macro v1.0.3
[INFO] [stderr]   Downloaded signal-hook-registry v1.0.1
[INFO] [stderr]   Downloaded toml v0.5.1
[INFO] [stderr]   Downloaded cursive v0.12.0
[INFO] [stderr]   Downloaded enumset v0.4.0
[INFO] [stderr]   Downloaded simplelog v0.6.0
[INFO] [stderr]   Downloaded debug_stub_derive v0.3.0
[INFO] [stderr]   Downloaded sysctl v0.4.0
[INFO] [stderr]   Downloaded cursive_tree_view v0.4.0
[INFO] [stderr]   Downloaded syn v0.15.41
[INFO] [stderr]   Downloaded enum-map-internals v0.1.3
[INFO] [stderr]   Downloaded serde v1.0.97
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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] f7daeb9cf643c095d4c7a5051f235c92057448f4abe408837574c95c0d620ce2
[INFO] running `Command { std: "docker" "start" "-a" "f7daeb9cf643c095d4c7a5051f235c92057448f4abe408837574c95c0d620ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7daeb9cf643c095d4c7a5051f235c92057448f4abe408837574c95c0d620ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7daeb9cf643c095d4c7a5051f235c92057448f4abe408837574c95c0d620ce2", kill_on_drop: false }`
[INFO] [stdout] f7daeb9cf643c095d4c7a5051f235c92057448f4abe408837574c95c0d620ce2
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d6dfc429110f091fe9973141fd591c25e2c0f5038848350bd96a5230beda3e1
[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" "1d6dfc429110f091fe9973141fd591c25e2c0f5038848350bd96a5230beda3e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.41
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking array-macro v1.0.3
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking enum-map-internals v0.1.3
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking signal-hook-registry v1.0.1
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling debug_stub_derive v0.3.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking signal-hook v0.1.10
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking simplelog v0.6.0
[INFO] [stderr]    Compiling enum-map-derive v0.4.1
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking enum-map v0.5.0
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking sysctl v0.4.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling enumset_derive v0.4.0
[INFO] [stderr]     Checking enumset v0.4.0
[INFO] [stderr]     Checking cursive v0.12.0
[INFO] [stderr]     Checking cursive_tree_view v0.4.0
[INFO] [stderr]     Checking sysctlexplorer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "1d6dfc429110f091fe9973141fd591c25e2c0f5038848350bd96a5230beda3e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d6dfc429110f091fe9973141fd591c25e2c0f5038848350bd96a5230beda3e1", kill_on_drop: false }`
[INFO] [stdout] 1d6dfc429110f091fe9973141fd591c25e2c0f5038848350bd96a5230beda3e1