[INFO] fetching crate otter-wasm 0.5.1...
[INFO] checking otter-wasm-0.5.1 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate otter-wasm 0.5.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate otter-wasm 0.5.1 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate otter-wasm 0.5.1
[INFO] finished tweaking crates.io crate otter-wasm 0.5.1
[INFO] tweaked toml for crates.io crate otter-wasm 0.5.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7a93deefef14042be5bd005fb3a0734a437cf87c6378b8760358ec7129ba9e6
[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" "d7a93deefef14042be5bd005fb3a0734a437cf87c6378b8760358ec7129ba9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7a93deefef14042be5bd005fb3a0734a437cf87c6378b8760358ec7129ba9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7a93deefef14042be5bd005fb3a0734a437cf87c6378b8760358ec7129ba9e6", kill_on_drop: false }`
[INFO] [stdout] d7a93deefef14042be5bd005fb3a0734a437cf87c6378b8760358ec7129ba9e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c092998e8068462494b75c6fa367ad11419926729531b9bd4c2aad8e1acb5a33
[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" "c092998e8068462494b75c6fa367ad11419926729531b9bd4c2aad8e1acb5a33", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.73
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking if_chain v1.0.1
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.73
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling extend v1.0.1
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.73
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling serde_with_macros v1.4.1
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]     Checking serde_with v1.8.1
[INFO] [stderr]     Checking js-sys v0.3.50
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking otter-base v0.5.1
[INFO] [stderr]     Checking otter-wasm v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `Command { std: "docker" "inspect" "c092998e8068462494b75c6fa367ad11419926729531b9bd4c2aad8e1acb5a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c092998e8068462494b75c6fa367ad11419926729531b9bd4c2aad8e1acb5a33", kill_on_drop: false }`
[INFO] [stdout] c092998e8068462494b75c6fa367ad11419926729531b9bd4c2aad8e1acb5a33