[INFO] cloning repository https://github.com/nfcaspers/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nfcaspers/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnfcaspers%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnfcaspers%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7517dbd18a6e9a6cdcc465321426862dc799e7a
[INFO] checking nfcaspers/rust against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnfcaspers%2Frust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nfcaspers/rust on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nfcaspers/rust
[INFO] finished tweaking git repo https://github.com/nfcaspers/rust
[INFO] tweaked toml for git repo https://github.com/nfcaspers/rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nfcaspers/rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a51fac9a2865f8e3f32b9b5eb01c75e1ac7f110b347b2d7a585499050c86db73
[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" "a51fac9a2865f8e3f32b9b5eb01c75e1ac7f110b347b2d7a585499050c86db73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a51fac9a2865f8e3f32b9b5eb01c75e1ac7f110b347b2d7a585499050c86db73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a51fac9a2865f8e3f32b9b5eb01c75e1ac7f110b347b2d7a585499050c86db73", kill_on_drop: false }`
[INFO] [stdout] a51fac9a2865f8e3f32b9b5eb01c75e1ac7f110b347b2d7a585499050c86db73
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] daac2ed3add80f26af50a9b0c3159dad7b4a9e90e2372e4e14eb89dff2e660ac
[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" "daac2ed3add80f26af50a9b0c3159dad7b4a9e90e2372e4e14eb89dff2e660ac", kill_on_drop: false }`
[INFO] [stderr]     Checking cell v0.1.0 (/opt/rustwide/workdir/smart-pointers/cell)
[INFO] [stderr]     Checking rc v0.1.0 (/opt/rustwide/workdir/smart-pointers/rc)
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir/functional/functions)
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir/std-data-structures/strings)
[INFO] [stderr]     Checking operators v0.1.0 (/opt/rustwide/workdir/operators)
[INFO] [stderr]     Checking map v0.1.0 (/opt/rustwide/workdir/functional/map)
[INFO] [stderr]     Checking public-private v0.1.0 (/opt/rustwide/workdir/public-private)
[INFO] [stderr]     Checking generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]     Checking lifetimes v0.1.0 (/opt/rustwide/workdir/lifetimes)
[INFO] [stderr]     Checking error v0.1.0 (/opt/rustwide/workdir/error)
[INFO] [stderr]     Checking vector v0.1.0 (/opt/rustwide/workdir/std-data-structures/vector)
[INFO] [stderr]     Checking rectangles v0.1.0 (/opt/rustwide/workdir/rectangles)
[INFO] [stderr]     Checking match v0.1.0 (/opt/rustwide/workdir/match)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> error/src/main.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn handle_all_errors() -> Result<(), 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]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lib-structure v0.1.0 (/opt/rustwide/workdir/lib-structure)
[INFO] [stderr]     Checking hw v0.1.0 (/opt/rustwide/workdir/hw)
[INFO] [stderr]     Checking box v0.1.0 (/opt/rustwide/workdir/smart-pointers/box)
[INFO] [stderr]     Checking hash-maps v0.1.0 (/opt/rustwide/workdir/std-data-structures/hash-maps)
[INFO] [stderr]     Checking options v0.1.0 (/opt/rustwide/workdir/options)
[INFO] [stderr]     Checking largest-number v0.1.0 (/opt/rustwide/workdir/largest-number)
[INFO] [stderr]     Checking enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> error/src/main.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn handle_all_errors() -> Result<(), 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]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking unsafe v0.1.0 (/opt/rustwide/workdir/unsafe)
[INFO] [stderr]     Checking closures v0.1.0 (/opt/rustwide/workdir/closures)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.89s
[INFO] running `Command { std: "docker" "inspect" "daac2ed3add80f26af50a9b0c3159dad7b4a9e90e2372e4e14eb89dff2e660ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daac2ed3add80f26af50a9b0c3159dad7b4a9e90e2372e4e14eb89dff2e660ac", kill_on_drop: false }`
[INFO] [stdout] daac2ed3add80f26af50a9b0c3159dad7b4a9e90e2372e4e14eb89dff2e660ac