[INFO] cloning repository https://github.com/mnit-rtmc/mere
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mnit-rtmc/mere" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnit-rtmc%2Fmere", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnit-rtmc%2Fmere'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d557dba8eba8e2602d03ee1e24c10afaf57e3ff
[INFO] checking mnit-rtmc/mere against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnit-rtmc%2Fmere" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mnit-rtmc/mere on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mnit-rtmc/mere
[INFO] finished tweaking git repo https://github.com/mnit-rtmc/mere
[INFO] tweaked toml for git repo https://github.com/mnit-rtmc/mere written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mnit-rtmc/mere already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 833b092f8d34e7c6507c4bdaf59144310c001f271a5f20cec31e28b9741d7d96
[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" "833b092f8d34e7c6507c4bdaf59144310c001f271a5f20cec31e28b9741d7d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "833b092f8d34e7c6507c4bdaf59144310c001f271a5f20cec31e28b9741d7d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833b092f8d34e7c6507c4bdaf59144310c001f271a5f20cec31e28b9741d7d96", kill_on_drop: false }`
[INFO] [stdout] 833b092f8d34e7c6507c4bdaf59144310c001f271a5f20cec31e28b9741d7d96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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] 2cafa4a4077647544620738f88c400f4878b79bf54b27d952a3bd1119858dde1
[INFO] running `Command { std: "docker" "start" "-a" "2cafa4a4077647544620738f88c400f4878b79bf54b27d952a3bd1119858dde1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking whoami v0.9.0
[INFO] [stderr]    Compiling openssl-src v111.12.0+1.1.1h
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]     Checking libz-sys v1.1.2
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking inotify v0.8.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling gumdrop_derive v0.8.0
[INFO] [stderr]     Checking gumdrop v0.8.0
[INFO] [stderr]     Checking ssh2 v0.8.2
[INFO] [stderr]     Checking mere v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 16s
[INFO] running `Command { std: "docker" "inspect" "2cafa4a4077647544620738f88c400f4878b79bf54b27d952a3bd1119858dde1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cafa4a4077647544620738f88c400f4878b79bf54b27d952a3bd1119858dde1", kill_on_drop: false }`
[INFO] [stdout] 2cafa4a4077647544620738f88c400f4878b79bf54b27d952a3bd1119858dde1