[INFO] cloning repository https://github.com/remexre/stahlnet-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/remexre/stahlnet-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremexre%2Fstahlnet-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremexre%2Fstahlnet-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a33d0a80a1fac781c221c26a74477784a9d2996
[INFO] testing remexre/stahlnet-rs against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremexre%2Fstahlnet-rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/remexre/stahlnet-rs on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/remexre/stahlnet-rs
[INFO] finished tweaking git repo https://github.com/remexre/stahlnet-rs
[INFO] tweaked toml for git repo https://github.com/remexre/stahlnet-rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/remexre/stahlnet-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook v0.1.9
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.14
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed9a727d32881700133bbca40f1c995a58dbc683d8e036b6099bbb6d51fbe65a
[INFO] running `Command { std: "docker" "start" "-a" "ed9a727d32881700133bbca40f1c995a58dbc683d8e036b6099bbb6d51fbe65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed9a727d32881700133bbca40f1c995a58dbc683d8e036b6099bbb6d51fbe65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9a727d32881700133bbca40f1c995a58dbc683d8e036b6099bbb6d51fbe65a", kill_on_drop: false }`
[INFO] [stdout] ed9a727d32881700133bbca40f1c995a58dbc683d8e036b6099bbb6d51fbe65a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f45b7f10d3635962b8920af64c1251f1063f42ec17cd9ef38fb1663544d7a854
[INFO] running `Command { std: "docker" "start" "-a" "f45b7f10d3635962b8920af64c1251f1063f42ec17cd9ef38fb1663544d7a854", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling futures v0.1.27
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling tokio-trace-core v0.2.0
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling tokio-executor v0.1.7
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tokio-sync v0.1.6
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.14
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.21
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling libremexre v0.1.12
[INFO] [stderr]    Compiling stahlnet v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     const_err,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `legacy_directory_ownership` has been removed: converted into hard error, see issue #37872 <https://github.com/rust-lang/rust/issues/37872> for more information
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     legacy_directory_ownership,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: plugins have been deprecated and retired
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     plugin_as_library,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     private_in_public,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `safe_extern_statics` has been removed: converted into hard error, see issue #36247 <https://github.com/rust-lang/rust/issues/36247> for more information
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     safe_extern_statics,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `unions_with_drop_fields`
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     unions_with_drop_fields,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/server.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 drop(self.peers.remove(&peer));
[INFO] [stdout]     |                 ^^^^^------------------------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `bool`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 133 -                 drop(self.peers.remove(&peer));
[INFO] [stdout] 133 +                 let _ = self.peers.remove(&peer);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/server.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     drop(self.routes.insert(task, (hops, peer)));
[INFO] [stdout]     |                     ^^^^^--------------------------------------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `Option<(u64, std::net::SocketAddr)>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 143 -                     drop(self.routes.insert(task, (hops, peer)));
[INFO] [stdout] 143 +                     let _ = self.routes.insert(task, (hops, peer));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.51s
[INFO] running `Command { std: "docker" "inspect" "f45b7f10d3635962b8920af64c1251f1063f42ec17cd9ef38fb1663544d7a854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f45b7f10d3635962b8920af64c1251f1063f42ec17cd9ef38fb1663544d7a854", kill_on_drop: false }`
[INFO] [stdout] f45b7f10d3635962b8920af64c1251f1063f42ec17cd9ef38fb1663544d7a854
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20eb4a76b5ecf6ef0f2cb24dadbe1fa952f713c04520dd25ee76e6424bc5a0d5
[INFO] running `Command { std: "docker" "start" "-a" "20eb4a76b5ecf6ef0f2cb24dadbe1fa952f713c04520dd25ee76e6424bc5a0d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stdout] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     const_err,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `legacy_directory_ownership` has been removed: converted into hard error, see issue #37872 <https://github.com/rust-lang/rust/issues/37872> for more information
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     legacy_directory_ownership,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: plugins have been deprecated and retired
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     plugin_as_library,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     private_in_public,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `safe_extern_statics` has been removed: converted into hard error, see issue #36247 <https://github.com/rust-lang/rust/issues/36247> for more information
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     safe_extern_statics,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `unions_with_drop_fields`
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     unions_with_drop_fields,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/server.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 drop(self.peers.remove(&peer));
[INFO] [stdout]     |                 ^^^^^------------------------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `bool`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 133 -                 drop(self.peers.remove(&peer));
[INFO] [stdout] 133 +                 let _ = self.peers.remove(&peer);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/server.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     drop(self.routes.insert(task, (hops, peer)));
[INFO] [stdout]     |                     ^^^^^--------------------------------------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `Option<(u64, std::net::SocketAddr)>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 143 -                     drop(self.routes.insert(task, (hops, peer)));
[INFO] [stdout] 143 +                     let _ = self.routes.insert(task, (hops, peer));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling stahlnet v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     const_err,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `legacy_directory_ownership` has been removed: converted into hard error, see issue #37872 <https://github.com/rust-lang/rust/issues/37872> for more information
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     legacy_directory_ownership,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: plugins have been deprecated and retired
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     plugin_as_library,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     private_in_public,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `safe_extern_statics` has been removed: converted into hard error, see issue #36247 <https://github.com/rust-lang/rust/issues/36247> for more information
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     safe_extern_statics,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `unions_with_drop_fields`
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     unions_with_drop_fields,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/server.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 drop(self.peers.remove(&peer));
[INFO] [stdout]     |                 ^^^^^------------------------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `bool`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 133 -                 drop(self.peers.remove(&peer));
[INFO] [stdout] 133 +                 let _ = self.peers.remove(&peer);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/server.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     drop(self.routes.insert(task, (hops, peer)));
[INFO] [stdout]     |                     ^^^^^--------------------------------------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `Option<(u64, std::net::SocketAddr)>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 143 -                     drop(self.routes.insert(task, (hops, peer)));
[INFO] [stdout] 143 +                     let _ = self.routes.insert(task, (hops, peer));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "20eb4a76b5ecf6ef0f2cb24dadbe1fa952f713c04520dd25ee76e6424bc5a0d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eb4a76b5ecf6ef0f2cb24dadbe1fa952f713c04520dd25ee76e6424bc5a0d5", kill_on_drop: false }`
[INFO] [stdout] 20eb4a76b5ecf6ef0f2cb24dadbe1fa952f713c04520dd25ee76e6424bc5a0d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ca6c269cd85751940ffeb3b8593477f192bc8634c3089ae23c31e68a39e3ef4
[INFO] running `Command { std: "docker" "start" "-a" "5ca6c269cd85751940ffeb3b8593477f192bc8634c3089ae23c31e68a39e3ef4", kill_on_drop: false }`
[INFO] [stderr] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     const_err,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lint `legacy_directory_ownership` has been removed: converted into hard error, see issue #37872 <https://github.com/rust-lang/rust/issues/37872> for more information
[INFO] [stderr]  --> src/lib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     legacy_directory_ownership,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lint `plugin_as_library` has been removed: plugins have been deprecated and retired
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     plugin_as_library,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     private_in_public,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lint `safe_extern_statics` has been removed: converted into hard error, see issue #36247 <https://github.com/rust-lang/rust/issues/36247> for more information
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     safe_extern_statics,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `unions_with_drop_fields`
[INFO] [stderr]   --> src/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     unions_with_drop_fields,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]    --> src/server.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 drop(self.peers.remove(&peer));
[INFO] [stderr]     |                 ^^^^^------------------------^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `bool`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 133 -                 drop(self.peers.remove(&peer));
[INFO] [stderr] 133 +                 let _ = self.peers.remove(&peer);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]    --> src/server.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |                     drop(self.routes.insert(task, (hops, peer)));
[INFO] [stderr]     |                     ^^^^^--------------------------------------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `Option<(u64, std::net::SocketAddr)>`
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 143 -                     drop(self.routes.insert(task, (hops, peer)));
[INFO] [stderr] 143 +                     let _ = self.routes.insert(task, (hops, peer));
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `stahlnet` (lib) generated 8 warnings
[INFO] [stderr] warning: `stahlnet` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stahlnet-09f98aa096874cb6)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::leak_check_tasks ... ok
[INFO] [stdout] test tests::leak_check_queued ... ok
[INFO] [stderr] thread 'tokio-runtime-worker-0' panicked at core/src/panicking.rs:221:5:
[INFO] [stderr] unsafe precondition(s) violated: slice::get_unchecked_mut requires that the index is within the slice
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5b1f8827096a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]    1:     0x5b1f8827096a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x5b1f8827096a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]    3:     0x5b1f8827096a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]    4:     0x5b1f88297dd3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]    5:     0x5b1f88297dd3 - core::fmt::write::h7550c97b06c86515
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stderr]    6:     0x5b1f8826dbb3 - std::io::Write::write_fmt::h7b09c64fe0be9c84
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stderr]    7:     0x5b1f882707b2 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]    8:     0x5b1f88271dca - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stderr]    9:     0x5b1f88271c10 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9
[INFO] [stderr]   10:     0x5b1f881641f9 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stderr]   11:     0x5b1f881641f9 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stderr]   12:     0x5b1f88272468 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stderr]   13:     0x5b1f88272468 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stderr]   14:     0x5b1f882721f6 - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:667:13
[INFO] [stderr]   15:     0x5b1f88270e49 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]   16:     0x5b1f88271ebc - rust_begin_unwind
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stderr]   17:     0x5b1f880fcb0d - core::panicking::panic_nounwind_fmt::runtime::h1f507a806003dfb2
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:112:18
[INFO] [stderr]   18:     0x5b1f880fcb0d - core::panicking::panic_nounwind_fmt::h357fc035dc231634
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:122:5
[INFO] [stderr]   19:     0x5b1f880fcba2 - core::panicking::panic_nounwind::hd0dad372654c389a
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:221:5
[INFO] [stderr]   20:     0x5b1f88214358 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::precondition_check::he1c9217289349f34
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ub_checks.rs:70:21
[INFO] [stderr]   21:     0x5b1f8821430e - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::hbcadd9600a3b65d1
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ub_checks.rs:77:17
[INFO] [stderr]   22:     0x5b1f88212f29 - core::slice::<impl [T]>::get_unchecked_mut::hb9d3001e6985d9da
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/slice/mod.rs:714:24
[INFO] [stderr]   23:     0x5b1f8820d70a - arrayvec::ArrayVec<A>::push_unchecked::h9798c6085e9f0cf9
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayvec-0.4.10/src/lib.rs:243:20
[INFO] [stderr]   24:     0x5b1f8820ddc8 - arrayvec::ArrayVec<A>::try_push::h0220079d02339ad0
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayvec-0.4.10/src/lib.rs:209:17
[INFO] [stderr]   25:     0x5b1f8820f3dd - crossbeam_epoch::internal::Bag::try_push::h0aa7d0b344cb80a7
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/internal.rs:93:9
[INFO] [stderr]   26:     0x5b1f8820fefb - crossbeam_epoch::internal::Local::defer::h2bceefae9097b01c
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/internal.rs:324:28
[INFO] [stderr]   27:     0x5b1f8820f241 - crossbeam_epoch::guard::Guard::defer_unchecked::h6a9ebe2013308e9a
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/guard.rs:195:13
[INFO] [stderr]   28:     0x5b1f882155c7 - <crossbeam_epoch::sync::list::Iter<T,C> as core::iter::traits::iterator::Iterator>::next::h2e14980828295e09
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/sync/list.rs:260:29
[INFO] [stderr]   29:     0x5b1f8820fa53 - crossbeam_epoch::internal::Global::try_advance::h62afc822d5bef75a
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/internal.rs:210:22
[INFO] [stderr]   30:     0x5b1f8820f8b5 - crossbeam_epoch::internal::Global::collect::h42d687f04d4ec162
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/internal.rs:175:28
[INFO] [stderr]   31:     0x5b1f8821035d - crossbeam_epoch::internal::Local::pin::h012324da1722a397
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/internal.rs:390:17
[INFO] [stderr]   32:     0x5b1f88210655 - crossbeam_epoch::internal::Local::finalize::h2a6bfc6484ab1970
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/internal.rs:468:26
[INFO] [stderr]   33:     0x5b1f88210523 - crossbeam_epoch::internal::Local::release_handle::h3be4258301f865d2
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/internal.rs:452:13
[INFO] [stderr]   34:     0x5b1f8821456d - <crossbeam_epoch::collector::LocalHandle as core::ops::drop::Drop>::drop::h7f800a1dbd5eab59
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.7.1/src/collector.rs:95:13
[INFO] [stderr]   35:     0x5b1f882120ba - core::ptr::drop_in_place<crossbeam_epoch::collector::LocalHandle>::hd70aa7fc1bc14bbe
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ptr/mod.rs:574:1
[INFO] [stderr]   36:     0x5b1f88211ec3 - core::ptr::drop_in_place<std::sys::thread_local::native::lazy::State<crossbeam_epoch::collector::LocalHandle,()>>::hf25d4e32226dc410
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ptr/mod.rs:574:1
[INFO] [stderr]   37:     0x5b1f8820c3c1 - core::mem::drop::hf68f53c60df5e450
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/mem/mod.rs:943:24
[INFO] [stderr]   38:     0x5b1f8820c3c1 - std::sys::thread_local::native::lazy::destroy::{{closure}}::h6130000a82969612
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/thread_local/native/lazy.rs:98:9
[INFO] [stderr]   39:     0x5b1f88211a22 - std::sys::thread_local::abort_on_dtor_unwind::h290a3e2e8e024e85
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/thread_local/mod.rs:182:5
[INFO] [stderr]   40:     0x5b1f8820c341 - std::sys::thread_local::native::lazy::destroy::h3c1d883b1358223c
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/thread_local/native/lazy.rs:93:5
[INFO] [stderr]   41:     0x740da1bf6d9f - __call_tls_dtors
[INFO] [stderr]   42:     0x740da1c45945 - <unknown>
[INFO] [stderr]   43:     0x740da1cd6a04 - clone
[INFO] [stderr]   44:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/stahlnet-09f98aa096874cb6` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "5ca6c269cd85751940ffeb3b8593477f192bc8634c3089ae23c31e68a39e3ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ca6c269cd85751940ffeb3b8593477f192bc8634c3089ae23c31e68a39e3ef4", kill_on_drop: false }`
[INFO] [stdout] 5ca6c269cd85751940ffeb3b8593477f192bc8634c3089ae23c31e68a39e3ef4
