[INFO] cloning repository https://github.com/ods/rs-log-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ods/rs-log-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fods%2Frs-log-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fods%2Frs-log-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 429b9a7d4b8bcbdaa1a49cceae88bb7dd433ddc6
[INFO] checking ods/rs-log-experiments against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fods%2Frs-log-experiments" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ods/rs-log-experiments on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ods/rs-log-experiments
[INFO] finished tweaking git repo https://github.com/ods/rs-log-experiments
[INFO] tweaked toml for git repo https://github.com/ods/rs-log-experiments written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ods/rs-log-experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfc46744e01a4eb3b145825db244999662e66896c08b2744ca8ad44b00469d27
[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" "cfc46744e01a4eb3b145825db244999662e66896c08b2744ca8ad44b00469d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfc46744e01a4eb3b145825db244999662e66896c08b2744ca8ad44b00469d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfc46744e01a4eb3b145825db244999662e66896c08b2744ca8ad44b00469d27", kill_on_drop: false }`
[INFO] [stdout] cfc46744e01a4eb3b145825db244999662e66896c08b2744ca8ad44b00469d27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] 5002d1bb9ddffea63092a9abcb20ea4011b52e91c977fa69fec56034613bf21f
[INFO] running `Command { std: "docker" "start" "-a" "5002d1bb9ddffea63092a9abcb20ea4011b52e91c977fa69fec56034613bf21f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
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[INFO] [stderr]    Compiling rand_core v0.5.1
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[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
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[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking sized-chunks v0.6.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling git-version-macro v0.3.4
[INFO] [stderr]    Compiling git-version v0.3.4
[INFO] [stderr]    Compiling log_experiments v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
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[INFO] [stderr]     Checking futures-util v0.3.8
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[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking slog-term v2.6.0
[INFO] [stderr]     Checking sentry-types v0.21.0
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[INFO] [stderr]    Compiling sentry-contexts v0.21.0
[INFO] [stderr]     Checking slog-envlogger v2.2.0
[INFO] [stderr]    Compiling cargo_metadata v0.10.0
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[INFO] [stderr]     Checking sentry-core v0.21.0
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[INFO] [stderr]     Checking sentry-backtrace v0.21.0
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[INFO] [stderr]     Checking sentry-panic v0.21.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
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[INFO] [stderr]     Checking sentry v0.21.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 32s
[INFO] running `Command { std: "docker" "inspect" "5002d1bb9ddffea63092a9abcb20ea4011b52e91c977fa69fec56034613bf21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5002d1bb9ddffea63092a9abcb20ea4011b52e91c977fa69fec56034613bf21f", kill_on_drop: false }`
[INFO] [stdout] 5002d1bb9ddffea63092a9abcb20ea4011b52e91c977fa69fec56034613bf21f