[INFO] cloning repository https://github.com/pandaman64/succ_nix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pandaman64/succ_nix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandaman64%2Fsucc_nix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandaman64%2Fsucc_nix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4cd8b401128f16a1334f313f19821a9b2d6bb76
[INFO] checking pandaman64/succ_nix against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandaman64%2Fsucc_nix" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pandaman64/succ_nix on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pandaman64/succ_nix
[INFO] finished tweaking git repo https://github.com/pandaman64/succ_nix
[INFO] tweaked toml for git repo https://github.com/pandaman64/succ_nix written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/pandaman64/succ_nix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-core v0.1.18
[INFO] [stderr]   Downloaded aho-corasick v0.7.18
[INFO] [stderr]   Downloaded smol_str v0.1.17
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.18
[INFO] [stderr]   Downloaded byteorder v1.4.3
[INFO] [stderr]   Downloaded sharded-slab v0.1.1
[INFO] [stderr]   Downloaded countme v2.0.4
[INFO] [stderr]   Downloaded tracing-log v0.1.2
[INFO] [stderr]   Downloaded memchr v2.4.0
[INFO] [stderr]   Downloaded rustc-hash v1.1.0
[INFO] [stderr]   Downloaded linked-hash-map v0.5.4
[INFO] [stderr]   Downloaded yaml-rust v0.4.5
[INFO] [stderr]   Downloaded bstr v0.2.16
[INFO] [stderr]   Downloaded walkdir v2.3.2
[INFO] [stderr]   Downloaded cbitset v0.2.0
[INFO] [stderr]   Downloaded dtoa v0.4.8
[INFO] [stderr]   Downloaded console v0.14.1
[INFO] [stderr]   Downloaded globset v0.4.6
[INFO] [stderr]   Downloaded serde_yaml v0.8.17
[INFO] [stderr]   Downloaded rnix v0.9.0
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded similar v1.3.0
[INFO] [stderr]   Downloaded codespan-reporting v0.11.1
[INFO] [stderr]   Downloaded typed-arena v2.0.1
[INFO] [stderr]   Downloaded insta v1.7.1
[INFO] [stderr]   Downloaded tracing v0.1.26
[INFO] [stderr]   Downloaded text-size v1.1.0
[INFO] [stderr]   Downloaded rowan v0.12.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd404fe9c3810889b6da18df236a2c996adb89750abc3e80a5bb847f110c6d40
[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" "fd404fe9c3810889b6da18df236a2c996adb89750abc3e80a5bb847f110c6d40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd404fe9c3810889b6da18df236a2c996adb89750abc3e80a5bb847f110c6d40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd404fe9c3810889b6da18df236a2c996adb89750abc3e80a5bb847f110c6d40", kill_on_drop: false }`
[INFO] [stdout] fd404fe9c3810889b6da18df236a2c996adb89750abc3e80a5bb847f110c6d40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d1dac4cab4ea60b2a46372d79da899eafbe14a6a5f9cb34486c3b8b4c7e33f6
[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" "4d1dac4cab4ea60b2a46372d79da899eafbe14a6a5f9cb34486c3b8b4c7e33f6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking countme v2.0.4
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking text-size v1.1.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking smol_str v0.1.17
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking similar v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking rowan v0.12.6
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking cbitset v0.2.0
[INFO] [stderr]     Checking rnix v0.9.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking succ_nix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking tracing-subscriber v0.2.18
[INFO] [stderr]     Checking insta v1.7.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.14s
[INFO] running `Command { std: "docker" "inspect" "4d1dac4cab4ea60b2a46372d79da899eafbe14a6a5f9cb34486c3b8b4c7e33f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d1dac4cab4ea60b2a46372d79da899eafbe14a6a5f9cb34486c3b8b4c7e33f6", kill_on_drop: false }`
[INFO] [stdout] 4d1dac4cab4ea60b2a46372d79da899eafbe14a6a5f9cb34486c3b8b4c7e33f6