[INFO] fetching crate ec2_instance_metadata 0.2.0...
[INFO] checking ec2_instance_metadata-0.2.0 against try#40b20bc1bf55bfe3b99c09c905e596d3e650663c for pr-73084-1
[INFO] extracting crate ec2_instance_metadata 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ec2_instance_metadata 0.2.0 on toolchain 40b20bc1bf55bfe3b99c09c905e596d3e650663c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+40b20bc1bf55bfe3b99c09c905e596d3e650663c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ec2_instance_metadata 0.2.0
[INFO] finished tweaking crates.io crate ec2_instance_metadata 0.2.0
[INFO] tweaked toml for crates.io crate ec2_instance_metadata 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate ec2_instance_metadata 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+40b20bc1bf55bfe3b99c09c905e596d3e650663c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+40b20bc1bf55bfe3b99c09c905e596d3e650663c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9d1aadd0f3989370d004fb2e05006b7849090db6f07dcea3f2ecf5e0d5bcc452
[INFO] running `Command { std: "docker" "start" "-a" "9d1aadd0f3989370d004fb2e05006b7849090db6f07dcea3f2ecf5e0d5bcc452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d1aadd0f3989370d004fb2e05006b7849090db6f07dcea3f2ecf5e0d5bcc452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1aadd0f3989370d004fb2e05006b7849090db6f07dcea3f2ecf5e0d5bcc452", kill_on_drop: false }`
[INFO] [stdout] 9d1aadd0f3989370d004fb2e05006b7849090db6f07dcea3f2ecf5e0d5bcc452
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+40b20bc1bf55bfe3b99c09c905e596d3e650663c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac5eb8eac5f00b85feb836de49b38f0f4d4537f7a0fadd90e55dbcbe427ef9dc
[INFO] running `Command { std: "docker" "start" "-a" "ac5eb8eac5f00b85feb836de49b38f0f4d4537f7a0fadd90e55dbcbe427ef9dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking base64 v0.12.2
[INFO] [stderr]     Checking chunked_transfer v1.2.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking qstring v0.7.2
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling standback v0.2.9
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking cookie v0.13.3
[INFO] [stderr]     Checking ureq v1.2.0
[INFO] [stderr]     Checking ec2_instance_metadata v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.68s
[INFO] running `Command { std: "docker" "inspect" "ac5eb8eac5f00b85feb836de49b38f0f4d4537f7a0fadd90e55dbcbe427ef9dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac5eb8eac5f00b85feb836de49b38f0f4d4537f7a0fadd90e55dbcbe427ef9dc", kill_on_drop: false }`
[INFO] [stdout] ac5eb8eac5f00b85feb836de49b38f0f4d4537f7a0fadd90e55dbcbe427ef9dc