[INFO] updating cached repository https://github.com/rust-ipfs/rust-ipfs-cmdkit
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d24d4eff63fb569f6f15c56b464ecda60246cdcf
[INFO] checking rust-ipfs/rust-ipfs-cmdkit against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-ipfs%2Frust-ipfs-cmdkit" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-ipfs/rust-ipfs-cmdkit on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rust-ipfs/rust-ipfs-cmdkit
[INFO] finished tweaking git repo https://github.com/rust-ipfs/rust-ipfs-cmdkit
[INFO] tweaked toml for git repo https://github.com/rust-ipfs/rust-ipfs-cmdkit written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-ipfs/rust-ipfs-cmdkit already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5698d0a6323f18e3f894eb9987efa76a6ba1b6aeac5124a8eb43279302f66d0d
[INFO] running `"docker" "start" "-a" "5698d0a6323f18e3f894eb9987efa76a6ba1b6aeac5124a8eb43279302f66d0d"`
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking rust-ipfs-cmdkit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/error.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::{Deserialize, Serialize};
[INFO] [stderr]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::Result`
[INFO] [stderr]  --> src/error.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde_json::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/error.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::{Deserialize, Serialize};
[INFO] [stderr]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::Result`
[INFO] [stderr]  --> src/error.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde_json::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/argument.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     String,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `File`
[INFO] [stderr]  --> src/argument.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     File,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/argument.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `arg_type`
[INFO] [stderr]  --> src/argument.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     arg_type: ArgumentType,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `required`
[INFO] [stderr]  --> src/argument.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     required: bool,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `variadic`
[INFO] [stderr]   --> src/argument.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     variadic: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `supports_stdin`
[INFO] [stderr]   --> src/argument.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     supports_stdin: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `recursive`
[INFO] [stderr]   --> src/argument.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     recursive: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `description`
[INFO] [stderr]   --> src/argument.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     description: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_string_argument`
[INFO] [stderr]   --> src/argument.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn new_string_argument(name: String, required: bool, variadic: bool, description: String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_file_argument`
[INFO] [stderr]   --> src/argument.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn new_file_argument(name: String, required: bool, variadic: bool, description: String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enable_stdin`
[INFO] [stderr]   --> src/argument.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn enable_stdin(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enable_recursive`
[INFO] [stderr]   --> src/argument.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn enable_recursive(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `error`
[INFO] [stderr]   --> src/error.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn error(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `marshal_json`
[INFO] [stderr]   --> src/error.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn marshal_json(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unmarshal_json`
[INFO] [stderr]   --> src/error.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn unmarshal_json(json: String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HelpText`
[INFO] [stderr]  --> src/helptext.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct HelpText {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `OptType`
[INFO] [stderr]  --> src/option.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum OptType {
[INFO] [stderr]   |      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_bool`
[INFO] [stderr]   --> src/option.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn convert_bool(value: String) -> Result<bool, ParseBoolError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_int`
[INFO] [stderr]   --> src/option.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn convert_int(value: String) -> Result<i32, ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_uint`
[INFO] [stderr]   --> src/option.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn convert_uint(value: String) -> Result<u32, ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_int64`
[INFO] [stderr]   --> src/option.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn convert_int64(value: String) -> Result<i64, ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_uint64`
[INFO] [stderr]   --> src/option.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn convert_uint64(value: String) -> Result<u64, ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_float`
[INFO] [stderr]   --> src/option.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn convert_float(value: String) -> Result<f64, ParseFloatError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_string`
[INFO] [stderr]   --> src/option.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn convert_string(value: String) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/argument.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     String,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `File`
[INFO] [stderr]  --> src/argument.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     File,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/argument.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `arg_type`
[INFO] [stderr]  --> src/argument.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     arg_type: ArgumentType,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `required`
[INFO] [stderr]  --> src/argument.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     required: bool,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `variadic`
[INFO] [stderr]   --> src/argument.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     variadic: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `supports_stdin`
[INFO] [stderr]   --> src/argument.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     supports_stdin: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `recursive`
[INFO] [stderr]   --> src/argument.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     recursive: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `description`
[INFO] [stderr]   --> src/argument.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     description: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_string_argument`
[INFO] [stderr]   --> src/argument.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn new_string_argument(name: String, required: bool, variadic: bool, description: String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_file_argument`
[INFO] [stderr]   --> src/argument.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn new_file_argument(name: String, required: bool, variadic: bool, description: String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enable_stdin`
[INFO] [stderr]   --> src/argument.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn enable_stdin(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enable_recursive`
[INFO] [stderr]   --> src/argument.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn enable_recursive(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `error`
[INFO] [stderr]   --> src/error.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn error(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `marshal_json`
[INFO] [stderr]   --> src/error.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn marshal_json(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unmarshal_json`
[INFO] [stderr]   --> src/error.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn unmarshal_json(json: String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HelpText`
[INFO] [stderr]  --> src/helptext.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct HelpText {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `OptType`
[INFO] [stderr]  --> src/option.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum OptType {
[INFO] [stderr]   |      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_bool`
[INFO] [stderr]   --> src/option.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn convert_bool(value: String) -> Result<bool, ParseBoolError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_int`
[INFO] [stderr]   --> src/option.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn convert_int(value: String) -> Result<i32, ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_uint`
[INFO] [stderr]   --> src/option.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn convert_uint(value: String) -> Result<u32, ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_int64`
[INFO] [stderr]   --> src/option.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn convert_int64(value: String) -> Result<i64, ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_uint64`
[INFO] [stderr]   --> src/option.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn convert_uint64(value: String) -> Result<u64, ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_float`
[INFO] [stderr]   --> src/option.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn convert_float(value: String) -> Result<f64, ParseFloatError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_string`
[INFO] [stderr]   --> src/option.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn convert_string(value: String) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.19s
[INFO] running `"docker" "inspect" "5698d0a6323f18e3f894eb9987efa76a6ba1b6aeac5124a8eb43279302f66d0d"`
[INFO] running `"docker" "rm" "-f" "5698d0a6323f18e3f894eb9987efa76a6ba1b6aeac5124a8eb43279302f66d0d"`
[INFO] [stdout] 5698d0a6323f18e3f894eb9987efa76a6ba1b6aeac5124a8eb43279302f66d0d