[INFO] cloning repository https://github.com/spikespaz/allfollow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spikespaz/allfollow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspikespaz%2Fallfollow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspikespaz%2Fallfollow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e097ac8c6fb8b9e32a3c590090005abe853cccf
[INFO] checking spikespaz/allfollow against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspikespaz%2Fallfollow" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/spikespaz/allfollow
[INFO] finished tweaking git repo https://github.com/spikespaz/allfollow
[INFO] tweaked toml for git repo https://github.com/spikespaz/allfollow written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/spikespaz/allfollow on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/spikespaz/allfollow 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8ffb50482b18eb2b5f70595bc94a199f897b3508c27985f6ca2d5a367ddc610
[INFO] running `Command { std: "docker" "start" "-a" "f8ffb50482b18eb2b5f70595bc94a199f897b3508c27985f6ca2d5a367ddc610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8ffb50482b18eb2b5f70595bc94a199f897b3508c27985f6ca2d5a367ddc610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8ffb50482b18eb2b5f70595bc94a199f897b3508c27985f6ca2d5a367ddc610", kill_on_drop: false }`
[INFO] [stdout] f8ffb50482b18eb2b5f70595bc94a199f897b3508c27985f6ca2d5a367ddc610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fcdf8d304a1a6273388a3abcb5d5f7facf80429aa9a4db84b4a9370b9c1342a
[INFO] running `Command { std: "docker" "start" "-a" "4fcdf8d304a1a6273388a3abcb5d5f7facf80429aa9a4db84b4a9370b9c1342a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]     Checking similar v2.7.0
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling bpaf_derive v0.5.17
[INFO] [stderr]     Checking bpaf v0.9.20
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_path_to_error v0.1.17
[INFO] [stderr]     Checking indexmap v2.10.0
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking insta v1.43.1
[INFO] [stderr]     Checking allfollow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `path` is never used
[INFO] [stdout]   --> src/flake_lock.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl NodeEdge {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn path(&self) -> Option<&Vec<String>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cli_args.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn open(&self) -> io::Result<InputReader> {
[INFO] [stdout]    |                 ^^^^^                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn open(&self) -> io::Result<InputReader<'_>> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cli_args.rs:62:19
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn create(&self, new: bool) -> io::Result<OutputWriter> {
[INFO] [stdout]    |                   ^^^^^                           ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn create(&self, new: bool) -> io::Result<OutputWriter<'_>> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `allfollow` (bin "allfollow") due to 4 previous errors; 10 warnings emitted
[INFO] [stdout] error: this type will no longer be must used: Result<Input, Infallible>
[INFO] [stdout]   --> src/cli_args.rs:92:53
[INFO] [stdout]    |
[INFO] [stdout] 92 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 93 | |         Ok(Self::from_arg(s))
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Input, Infallible>
[INFO] [stdout]   --> src/cli_args.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         Ok(Self::from_arg(s))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<cli_args::Output, Infallible>
[INFO] [stdout]    --> src/cli_args.rs:100:53
[INFO] [stdout]     |
[INFO] [stdout] 100 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 101 | |         Ok(Self::from_arg(s))
[INFO] [stdout] 102 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<cli_args::Output, Infallible>
[INFO] [stdout]    --> src/cli_args.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         Ok(Self::from_arg(s))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/flake_lock.rs:138:23
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn iter_edges(&self) -> impl Iterator<Item = (&str, Ref<NodeEdge>)> {
[INFO] [stdout]     |                       ^^^^^                           ^^^^  ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |                               |
[INFO] [stdout]     |                       |                               the same lifetime is elided here
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn iter_edges(&self) -> impl Iterator<Item = (&str, Ref<'_, NodeEdge>)> {
[INFO] [stdout]     |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/flake_lock.rs:144:27
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn iter_edges_mut(&self) -> impl Iterator<Item = (&str, RefMut<NodeEdge>)> {
[INFO] [stdout]     |                           ^^^^^                           ^^^^  ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |                               |
[INFO] [stdout]     |                           |                               the same lifetime is elided here
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn iter_edges_mut(&self) -> impl Iterator<Item = (&str, RefMut<'_, NodeEdge>)> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/flake_lock.rs:150:21
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn get_edge(&self, name: impl AsRef<str>) -> Option<Ref<NodeEdge>> {
[INFO] [stdout]     |                     ^^^^^ the lifetime is elided here       ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn get_edge(&self, name: impl AsRef<str>) -> Option<Ref<'_, NodeEdge>> {
[INFO] [stdout]     |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/flake_lock.rs:155:25
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn get_edge_mut(&self, name: impl AsRef<str>) -> Option<RefMut<NodeEdge>> {
[INFO] [stdout]     |                         ^^^^^ the lifetime is elided here       ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn get_edge_mut(&self, name: impl AsRef<str>) -> Option<RefMut<'_, NodeEdge>> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/flake_lock.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn root(&self) -> Option<Ref<Node>> {
[INFO] [stdout]     |                 ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn root(&self) -> Option<Ref<'_, Node>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/flake_lock.rs:194:21
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn get_node(&self, index: impl AsRef<str>) -> Option<Ref<Node>> {
[INFO] [stdout]     |                     ^^^^^ the lifetime is elided here        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn get_node(&self, index: impl AsRef<str>) -> Option<Ref<'_, Node>> {
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/flake_lock.rs:199:25
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn get_node_mut(&self, index: impl AsRef<str>) -> Option<RefMut<Node>> {
[INFO] [stdout]     |                         ^^^^^ the lifetime is elided here        ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn get_node_mut(&self, index: impl AsRef<str>) -> Option<RefMut<'_, Node>> {
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4fcdf8d304a1a6273388a3abcb5d5f7facf80429aa9a4db84b4a9370b9c1342a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fcdf8d304a1a6273388a3abcb5d5f7facf80429aa9a4db84b4a9370b9c1342a", kill_on_drop: false }`
[INFO] [stdout] 4fcdf8d304a1a6273388a3abcb5d5f7facf80429aa9a4db84b4a9370b9c1342a
