[INFO] cloning repository https://github.com/DevOrc/aurora
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DevOrc/aurora" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDevOrc%2Faurora", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDevOrc%2Faurora'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a694c080e80b880f55130b40303fb5c2e2d0180
[INFO] checking DevOrc/aurora against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDevOrc%2Faurora" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DevOrc/aurora on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DevOrc/aurora
[INFO] finished tweaking git repo https://github.com/DevOrc/aurora
[INFO] tweaked toml for git repo https://github.com/DevOrc/aurora written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/DevOrc/aurora already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd3f927b4082bbf16e257a2d9dd5486fb277fc8ce369233f9ee9af2944676083
[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" "bd3f927b4082bbf16e257a2d9dd5486fb277fc8ce369233f9ee9af2944676083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd3f927b4082bbf16e257a2d9dd5486fb277fc8ce369233f9ee9af2944676083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd3f927b4082bbf16e257a2d9dd5486fb277fc8ce369233f9ee9af2944676083", kill_on_drop: false }`
[INFO] [stdout] bd3f927b4082bbf16e257a2d9dd5486fb277fc8ce369233f9ee9af2944676083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fe2c7e1783f90bf581bb70ef3cdd48a979660c77de392fe23eff778774f50c4
[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" "7fe2c7e1783f90bf581bb70ef3cdd48a979660c77de392fe23eff778774f50c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking dirs v1.0.3
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking phf_shared v0.7.23
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking smallstr v0.1.0
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.3
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]     Checking aurora v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking mortal v0.1.5
[INFO] [stderr]     Checking linefeed v0.5.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/toml.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     for mut stmt in stmts.iter_mut(){
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.83s
[INFO] running `Command { std: "docker" "inspect" "7fe2c7e1783f90bf581bb70ef3cdd48a979660c77de392fe23eff778774f50c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe2c7e1783f90bf581bb70ef3cdd48a979660c77de392fe23eff778774f50c4", kill_on_drop: false }`
[INFO] [stdout] 7fe2c7e1783f90bf581bb70ef3cdd48a979660c77de392fe23eff778774f50c4