[INFO] fetching crate tracers-build 0.1.0...
[INFO] checking tracers-build-0.1.0 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate tracers-build 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tracers-build 0.1.0 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracers-build 0.1.0
[INFO] finished tweaking crates.io crate tracers-build 0.1.0
[INFO] tweaked toml for crates.io crate tracers-build 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfe513ea35fc662b780a7804568c7b5556ba425f1fa78102ac6cd855f0c1e779
[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" "bfe513ea35fc662b780a7804568c7b5556ba425f1fa78102ac6cd855f0c1e779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfe513ea35fc662b780a7804568c7b5556ba425f1fa78102ac6cd855f0c1e779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfe513ea35fc662b780a7804568c7b5556ba425f1fa78102ac6cd855f0c1e779", kill_on_drop: false }`
[INFO] [stdout] bfe513ea35fc662b780a7804568c7b5556ba425f1fa78102ac6cd855f0c1e779
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6aca853854fec2cb5049db0497905cacc8765a0e64efdf6b0441484a8f5bafac
[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" "6aca853854fec2cb5049db0497905cacc8765a0e64efdf6b0441484a8f5bafac", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling humansize v1.1.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling askama_escape v0.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking cc v1.0.68
[INFO] [stderr]     Checking pkg-config v0.3.19
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]     Checking proc-macro2 v1.0.27
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking twox-hash v1.6.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling tracers-core v0.1.0
[INFO] [stderr]     Checking darling v0.10.2
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_str v0.1.0
[INFO] [stderr]     Checking askama_shared v0.8.0
[INFO] [stderr]     Checking proc-macro-crate v0.1.5
[INFO] [stderr]     Checking cargo_metadata v0.9.1
[INFO] [stderr]    Compiling askama_derive v0.8.0
[INFO] [stderr]     Checking askama v0.8.0
[INFO] [stderr]     Checking tracers-codegen v0.1.0
[INFO] [stderr]     Checking tracers-build v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.91s
[INFO] running `Command { std: "docker" "inspect" "6aca853854fec2cb5049db0497905cacc8765a0e64efdf6b0441484a8f5bafac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aca853854fec2cb5049db0497905cacc8765a0e64efdf6b0441484a8f5bafac", kill_on_drop: false }`
[INFO] [stdout] 6aca853854fec2cb5049db0497905cacc8765a0e64efdf6b0441484a8f5bafac