[INFO] cloning repository https://github.com/iovxw/cobble
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iovxw/cobble" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fcobble", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fcobble'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f03cac83c57afd8b290400268ebe033a1023d9e
[INFO] checking iovxw/cobble against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fcobble" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iovxw/cobble on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iovxw/cobble
[INFO] finished tweaking git repo https://github.com/iovxw/cobble
[INFO] tweaked toml for git repo https://github.com/iovxw/cobble written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/iovxw/cobble already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc47d5143ab9a809c2503b57699990f1c73006d627c40767285c1d3e38185954
[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" "cc47d5143ab9a809c2503b57699990f1c73006d627c40767285c1d3e38185954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc47d5143ab9a809c2503b57699990f1c73006d627c40767285c1d3e38185954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc47d5143ab9a809c2503b57699990f1c73006d627c40767285c1d3e38185954", kill_on_drop: false }`
[INFO] [stdout] cc47d5143ab9a809c2503b57699990f1c73006d627c40767285c1d3e38185954
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba35c4b186e0c95cc1e8bb41ad466ec4b1bc70e284831d26d931247dac3f10bf
[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" "ba35c4b186e0c95cc1e8bb41ad466ec4b1bc70e284831d26d931247dac3f10bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking netbuf v0.4.1
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.15
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]     Checking crc32fast v1.1.2
[INFO] [stderr]     Checking backtrace-sys v0.1.26
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking rpassword v2.1.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking flate2 v1.0.6
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking curl v0.4.19
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking ozelot v0.8.0 (https://github.com/C4K3/Ozelot.git#e208e440)
[INFO] [stderr]     Checking cobble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` 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 51.05s
[INFO] running `Command { std: "docker" "inspect" "ba35c4b186e0c95cc1e8bb41ad466ec4b1bc70e284831d26d931247dac3f10bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba35c4b186e0c95cc1e8bb41ad466ec4b1bc70e284831d26d931247dac3f10bf", kill_on_drop: false }`
[INFO] [stdout] ba35c4b186e0c95cc1e8bb41ad466ec4b1bc70e284831d26d931247dac3f10bf