[INFO] fetching crate graviton_backend 0.6.0...
[INFO] checking graviton_backend-0.6.0 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate graviton_backend 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate graviton_backend 0.6.0 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 graviton_backend 0.6.0
[INFO] finished tweaking crates.io crate graviton_backend 0.6.0
[INFO] tweaked toml for crates.io crate graviton_backend 0.6.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cranelift-entity v0.56.0
[INFO] [stderr]   Downloaded cranelift-bforest v0.56.0
[INFO] [stderr]   Downloaded cranelift-module v0.56.0
[INFO] [stderr]   Downloaded cranelift v0.56.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.56.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.56.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.56.0
[INFO] [stderr]   Downloaded cranelift-native v0.56.0
[INFO] [stderr]   Downloaded cranelift-faerie v0.56.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.56.0
[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] e7674a4076e921752d9f3b0e07e48e2627102ceb501f48ffa3d2f6134e7f35d9
[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" "e7674a4076e921752d9f3b0e07e48e2627102ceb501f48ffa3d2f6134e7f35d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7674a4076e921752d9f3b0e07e48e2627102ceb501f48ffa3d2f6134e7f35d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7674a4076e921752d9f3b0e07e48e2627102ceb501f48ffa3d2f6134e7f35d9", kill_on_drop: false }`
[INFO] [stdout] e7674a4076e921752d9f3b0e07e48e2627102ceb501f48ffa3d2f6134e7f35d9
[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] 769d18fca09d87632a5209248ab158f7849e3a739dbd491470cd0a0dc2f8bdfa
[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" "769d18fca09d87632a5209248ab158f7849e3a739dbd491470cd0a0dc2f8bdfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.56.0
[INFO] [stderr]    Compiling cranelift-entity v0.56.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling erased-serde v0.3.15
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.56.0
[INFO] [stderr]     Checking cranelift-bforest v0.56.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking goblin v0.1.3
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]    Compiling cranelift-codegen v0.56.0
[INFO] [stderr]     Checking string-interner v0.7.1
[INFO] [stderr]     Checking graviton_core v0.6.0
[INFO] [stderr]     Checking graviton_ast v0.6.0
[INFO] [stderr]     Checking faerie v0.14.0
[INFO] [stderr]     Checking typetag v0.1.7
[INFO] [stderr]     Checking cranelift-frontend v0.56.0
[INFO] [stderr]     Checking cranelift-module v0.56.0
[INFO] [stderr]     Checking cranelift-native v0.56.0
[INFO] [stderr]     Checking cranelift-faerie v0.56.0
[INFO] [stderr]     Checking cranelift v0.56.0
[INFO] [stderr]     Checking graviton_backend v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "769d18fca09d87632a5209248ab158f7849e3a739dbd491470cd0a0dc2f8bdfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769d18fca09d87632a5209248ab158f7849e3a739dbd491470cd0a0dc2f8bdfa", kill_on_drop: false }`
[INFO] [stdout] 769d18fca09d87632a5209248ab158f7849e3a739dbd491470cd0a0dc2f8bdfa