[INFO] cloning repository https://github.com/danbruder/markle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danbruder/markle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanbruder%2Fmarkle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanbruder%2Fmarkle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f18d0ce09f7b3987d90d8694d180d7981454c66
[INFO] checking danbruder/markle/0f18d0ce09f7b3987d90d8694d180d7981454c66 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanbruder%2Fmarkle" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danbruder/markle on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danbruder/markle
[INFO] finished tweaking git repo https://github.com/danbruder/markle
[INFO] tweaked toml for git repo https://github.com/danbruder/markle written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/danbruder/markle 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded murmur3 v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 843743e2800bb3524860ea89968ed053e4034d66f3b52899c2b1f5ac21520d32
[INFO] running `Command { std: "docker" "start" "-a" "843743e2800bb3524860ea89968ed053e4034d66f3b52899c2b1f5ac21520d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "843743e2800bb3524860ea89968ed053e4034d66f3b52899c2b1f5ac21520d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "843743e2800bb3524860ea89968ed053e4034d66f3b52899c2b1f5ac21520d32", kill_on_drop: false }`
[INFO] [stdout] 843743e2800bb3524860ea89968ed053e4034d66f3b52899c2b1f5ac21520d32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e44107eb33d7f85607987bd87da3d8c3cbcd54de2497ef3bf336dbaa261fb06f
[INFO] running `Command { std: "docker" "start" "-a" "e44107eb33d7f85607987bd87da3d8c3cbcd54de2497ef3bf336dbaa261fb06f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking murmur3 v0.5.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking chrono v0.4.35
[INFO] [stderr]     Checking markle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `NaiveDateTime`
[INFO] [stdout]  --> src/timestamp.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono::{DateTime, NaiveDateTime, Utc};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Epoch` and `make_client_id`
[INFO] [stdout]  --> src/trie.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::timestamp::{make_client_id, Epoch, Timestamp};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Timestamp`, `make_client_id`, and `trie::Trie`
[INFO] [stdout]  --> src/main.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     timestamp::{make_client_id, Timestamp},
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 6 |     trie::Trie,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::Utc`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chrono::Utc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NaiveDateTime`
[INFO] [stdout]  --> src/timestamp.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono::{DateTime, NaiveDateTime, Utc};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Epoch`
[INFO] [stdout]  --> src/trie.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::timestamp::{make_client_id, Epoch, Timestamp};
[INFO] [stdout]   |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `maplit::hashmap`
[INFO] [stdout]    --> src/trie.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |     use maplit::hashmap;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Timestamp`, `make_client_id`, and `trie::Trie`
[INFO] [stdout]  --> src/main.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     timestamp::{make_client_id, Timestamp},
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 6 |     trie::Trie,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::Utc`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chrono::Utc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/timestamp.rs:145:18
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub fn parse(s: &str) -> Option<Self> {
[INFO] [stdout]     |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timestamp`
[INFO] [stdout]   --> src/trie.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn prune(&mut self, timestamp: u32) {
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/trie.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn prune_key(&mut self, key: &str, hash: u32) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]   --> src/trie.rs:61:40
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn prune_key(&mut self, key: &str, hash: u32) {
[INFO] [stdout]    |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `counter`, `node`, and `set_node` are never used
[INFO] [stdout]   --> src/timestamp.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Timestamp {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn counter(&self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn node(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn set_node(&mut self, node: String) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `millis_to_base3` is never used
[INFO] [stdout]    --> src/timestamp.rs:194:4
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn millis_to_base3(mut millis: i64) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_client_id` is never used
[INFO] [stdout]    --> src/timestamp.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn make_client_id() -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hash` and `children` are never read
[INFO] [stdout]  --> src/trie.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Trie {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 8 |     hash: u32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     children: HashMap<String, Trie>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Trie` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/trie.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Trie {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new() -> Trie {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn get_keys(&self) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn insert(&mut self, timestamp: Timestamp) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn insert_key(&mut self, key: &str, hash: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn build(timestamps: Vec<Timestamp>) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn prune(&mut self, timestamp: u32) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn prune_key(&mut self, key: &str, hash: u32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn diff<'a>(&self, other: &'a Trie) -> Option<DateTime<Utc>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn diff_recursive<'a>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_base3` is never used
[INFO] [stdout]    --> src/trie.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn to_base3(mut input: i64) -> String {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `key_to_timestamp` is never used
[INFO] [stdout]    --> src/trie.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn key_to_timestamp(key: &str) -> DateTime<Utc> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `timestamp_to_key` is never used
[INFO] [stdout]    --> src/trie.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn timestamp_to_key(ts: Timestamp) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/timestamp.rs:145:18
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub fn parse(s: &str) -> Option<Self> {
[INFO] [stdout]     |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timestamp`
[INFO] [stdout]   --> src/trie.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn prune(&mut self, timestamp: u32) {
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/trie.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn prune_key(&mut self, key: &str, hash: u32) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]   --> src/trie.rs:61:40
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn prune_key(&mut self, key: &str, hash: u32) {
[INFO] [stdout]    |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `counter`, `node`, and `set_node` are never used
[INFO] [stdout]   --> src/timestamp.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Timestamp {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn counter(&self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn node(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn set_node(&mut self, node: String) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `millis_to_base3` is never used
[INFO] [stdout]    --> src/timestamp.rs:194:4
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn millis_to_base3(mut millis: i64) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `prune` and `prune_key` are never used
[INFO] [stdout]   --> src/trie.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Trie {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn prune(&mut self, timestamp: u32) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn prune_key(&mut self, key: &str, hash: u32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "e44107eb33d7f85607987bd87da3d8c3cbcd54de2497ef3bf336dbaa261fb06f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e44107eb33d7f85607987bd87da3d8c3cbcd54de2497ef3bf336dbaa261fb06f", kill_on_drop: false }`
[INFO] [stdout] e44107eb33d7f85607987bd87da3d8c3cbcd54de2497ef3bf336dbaa261fb06f