[INFO] updating cached repository https://github.com/kenan-rhoton/rusthammer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da044ada1adcb776d998b4a0a2521aeb2d494047
[INFO] checking kenan-rhoton/rusthammer against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenan-rhoton%2Frusthammer" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kenan-rhoton/rusthammer on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kenan-rhoton/rusthammer
[INFO] finished tweaking git repo https://github.com/kenan-rhoton/rusthammer
[INFO] tweaked toml for git repo https://github.com/kenan-rhoton/rusthammer written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/kenan-rhoton/rusthammer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1608e89c90f563e219a273c317d3df6ef1e8b77ad66521c9a44339774caae575
[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" "1608e89c90f563e219a273c317d3df6ef1e8b77ad66521c9a44339774caae575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1608e89c90f563e219a273c317d3df6ef1e8b77ad66521c9a44339774caae575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1608e89c90f563e219a273c317d3df6ef1e8b77ad66521c9a44339774caae575", kill_on_drop: false }`
[INFO] [stdout] 1608e89c90f563e219a273c317d3df6ef1e8b77ad66521c9a44339774caae575
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e233076b31dc3f117bdc166fec7468d38352242b5073127b955745aa0a1adb7
[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" "9e233076b31dc3f117bdc166fec7468d38352242b5073127b955745aa0a1adb7", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.62
[INFO] [stderr]     Checking assert_approx_eq v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.3
[INFO] [stderr]    Compiling quote v0.6.2
[INFO] [stderr]    Compiling syn v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.62
[INFO] [stderr]     Checking serde_json v1.0.18
[INFO] [stderr]     Checking hammer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/units/mod.rs:300:61
[INFO] [stdout]     |
[INFO] [stdout] 300 |     pub fn from_file(filename : String) -> Result<Unit, Box<std::error::Error>> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/units/mod.rs:300:61
[INFO] [stdout]     |
[INFO] [stdout] 300 |     pub fn from_file(filename : String) -> Result<Unit, Box<std::error::Error>> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.00s
[INFO] running `Command { std: "docker" "inspect" "9e233076b31dc3f117bdc166fec7468d38352242b5073127b955745aa0a1adb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e233076b31dc3f117bdc166fec7468d38352242b5073127b955745aa0a1adb7", kill_on_drop: false }`
[INFO] [stdout] 9e233076b31dc3f117bdc166fec7468d38352242b5073127b955745aa0a1adb7