[INFO] fetching crate ion-hash 0.0.2...
[INFO] checking ion-hash-0.0.2 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate ion-hash 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ion-hash 0.0.2 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ion-hash 0.0.2
[INFO] finished tweaking crates.io crate ion-hash 0.0.2
[INFO] tweaked toml for crates.io crate ion-hash 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ion-rs v0.5.0
[INFO] [stderr]   Downloaded ion-c-sys v0.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25e919d5d79225ef503c9a5c338bde41a91a16a2db04fecc47c81a0d51ee5821
[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" "25e919d5d79225ef503c9a5c338bde41a91a16a2db04fecc47c81a0d51ee5821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25e919d5d79225ef503c9a5c338bde41a91a16a2db04fecc47c81a0d51ee5821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e919d5d79225ef503c9a5c338bde41a91a16a2db04fecc47c81a0d51ee5821", kill_on_drop: false }`
[INFO] [stdout] 25e919d5d79225ef503c9a5c338bde41a91a16a2db04fecc47c81a0d51ee5821
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 092f41251b817842076aaae723190d35d2a8a606385e28c28aa2f1e4f59f513e
[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" "092f41251b817842076aaae723190d35d2a8a606385e28c28aa2f1e4f59f513e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpufeatures v0.1.1
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling rstest v0.7.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]     Checking bigdecimal v0.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling delegate v0.5.1
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]    Compiling ion-c-sys v0.4.8
[INFO] [stderr]     Checking ion-rs v0.5.0
[INFO] [stderr]     Checking ion-hash v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 05s
[INFO] running `Command { std: "docker" "inspect" "092f41251b817842076aaae723190d35d2a8a606385e28c28aa2f1e4f59f513e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "092f41251b817842076aaae723190d35d2a8a606385e28c28aa2f1e4f59f513e", kill_on_drop: false }`
[INFO] [stdout] 092f41251b817842076aaae723190d35d2a8a606385e28c28aa2f1e4f59f513e