[INFO] fetching crate cargo-old-lock 0.1.0...
[INFO] checking cargo-old-lock-0.1.0 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate cargo-old-lock 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cargo-old-lock 0.1.0 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-old-lock 0.1.0
[INFO] finished tweaking crates.io crate cargo-old-lock 0.1.0
[INFO] tweaked toml for crates.io crate cargo-old-lock 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cargo-old-lock 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c6dc341b46e43c82002c70c44a5ff7c4a0ff0d2c675a5d89ca2965a8ca595bb
[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" "4c6dc341b46e43c82002c70c44a5ff7c4a0ff0d2c675a5d89ca2965a8ca595bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c6dc341b46e43c82002c70c44a5ff7c4a0ff0d2c675a5d89ca2965a8ca595bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c6dc341b46e43c82002c70c44a5ff7c4a0ff0d2c675a5d89ca2965a8ca595bb", kill_on_drop: false }`
[INFO] [stdout] 4c6dc341b46e43c82002c70c44a5ff7c4a0ff0d2c675a5d89ca2965a8ca595bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f2b6bb1017919b472d162ea318b50f411f0f5672c3830834498330159b8ceb3
[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" "2f2b6bb1017919b472d162ea318b50f411f0f5672c3830834498330159b8ceb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking cargo-lock v3.0.0
[INFO] [stderr]     Checking cargo-old-lock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.11s
[INFO] running `Command { std: "docker" "inspect" "2f2b6bb1017919b472d162ea318b50f411f0f5672c3830834498330159b8ceb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f2b6bb1017919b472d162ea318b50f411f0f5672c3830834498330159b8ceb3", kill_on_drop: false }`
[INFO] [stdout] 2f2b6bb1017919b472d162ea318b50f411f0f5672c3830834498330159b8ceb3