[INFO] cloning repository https://github.com/alisww/tomebot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alisww/tomebot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falisww%2Ftomebot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falisww%2Ftomebot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42d95c9de441957122c535dec9d6aa57d49aff7e
[INFO] checking alisww/tomebot against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falisww%2Ftomebot" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alisww/tomebot
[INFO] finished tweaking git repo https://github.com/alisww/tomebot
[INFO] tweaked toml for git repo https://github.com/alisww/tomebot written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alisww/tomebot on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alisww/tomebot 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5580ad2c8657143e7d5a78ede0e78c970c32cc0a72ee8d7010783b96b6048d4f
[INFO] running `Command { std: "docker" "start" "-a" "5580ad2c8657143e7d5a78ede0e78c970c32cc0a72ee8d7010783b96b6048d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5580ad2c8657143e7d5a78ede0e78c970c32cc0a72ee8d7010783b96b6048d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5580ad2c8657143e7d5a78ede0e78c970c32cc0a72ee8d7010783b96b6048d4f", kill_on_drop: false }`
[INFO] [stdout] 5580ad2c8657143e7d5a78ede0e78c970c32cc0a72ee8d7010783b96b6048d4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7b07f96c25cc3188271f92945d88fb3097b005e8d40608b93aa4c374f9863be
[INFO] running `Command { std: "docker" "start" "-a" "d7b07f96c25cc3188271f92945d88fb3097b005e8d40608b93aa4c374f9863be", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking pin-project-lite v0.2.6
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[INFO] [stderr]    Compiling serde v1.0.126
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[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking cpufeatures v0.1.5
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[INFO] [stderr]     Checking tomebot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/tome.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 |     while let res = iter.next() {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `webhook_thread`
[INFO] [stdout]   --> src/tome.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let webhook_thread = thread::spawn(move || {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_webhook_thread`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tome.rs:87:33
[INFO] [stdout]    |
[INFO] [stdout] 87 | / ...                   tx.send(json!({
[INFO] [stdout] 88 | | ...                       "username": username,
[INFO] [stdout] 89 | | ...                       "embeds": [
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | | ...                       }).to_string()
[INFO] [stdout] 99 | | ...                   );
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |                                 let _ = tx.send(json!({
[INFO] [stdout]    |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tome.rs:107:37
[INFO] [stdout]     |
[INFO] [stdout] 107 | / ...                   tx.send(json!({
[INFO] [stdout] 108 | | ...                       "username": username,
[INFO] [stdout] 109 | | ...                       "embeds": [
[INFO] [stdout] ...   |
[INFO] [stdout] 118 | | ...                       }).to_string()
[INFO] [stdout] 119 | | ...                   );
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 107 |                                     let _ = tx.send(json!({
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::prelude::*`
[INFO] [stdout]  --> src/events.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chrono::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/tome.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 |     while let res = iter.next() {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::prelude::*`
[INFO] [stdout]  --> src/events.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chrono::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/events.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 |     while let res = iter.next() {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `webhook_thread`
[INFO] [stdout]   --> src/tome.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let webhook_thread = thread::spawn(move || {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_webhook_thread`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `webhook_thread`
[INFO] [stdout]   --> src/events.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let webhook_thread = thread::spawn(move || {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_webhook_thread`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/events.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 |     while let res = iter.next() {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/events.rs:76:41
[INFO] [stdout]    |
[INFO] [stdout] 76 | / ...                   tx.send(json!({
[INFO] [stdout] 77 | | ...                           "username": username,
[INFO] [stdout] 78 | | ...                           "embeds": [
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | | ...                   }).to_string());
[INFO] [stdout]    | |_____________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |                                         let _ = tx.send(json!({
[INFO] [stdout]    |                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tome.rs:87:33
[INFO] [stdout]    |
[INFO] [stdout] 87 | / ...                   tx.send(json!({
[INFO] [stdout] 88 | | ...                       "username": username,
[INFO] [stdout] 89 | | ...                       "embeds": [
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | | ...                       }).to_string()
[INFO] [stdout] 99 | | ...                   );
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |                                 let _ = tx.send(json!({
[INFO] [stdout]    |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tome.rs:107:37
[INFO] [stdout]     |
[INFO] [stdout] 107 | / ...                   tx.send(json!({
[INFO] [stdout] 108 | | ...                       "username": username,
[INFO] [stdout] 109 | | ...                       "embeds": [
[INFO] [stdout] ...   |
[INFO] [stdout] 118 | | ...                       }).to_string()
[INFO] [stdout] 119 | | ...                   );
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 107 |                                     let _ = tx.send(json!({
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `webhook_thread`
[INFO] [stdout]   --> src/events.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let webhook_thread = thread::spawn(move || {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_webhook_thread`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/events.rs:76:41
[INFO] [stdout]    |
[INFO] [stdout] 76 | / ...                   tx.send(json!({
[INFO] [stdout] 77 | | ...                           "username": username,
[INFO] [stdout] 78 | | ...                           "embeds": [
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | | ...                   }).to_string());
[INFO] [stdout]    | |_____________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |                                         let _ = tx.send(json!({
[INFO] [stdout]    |                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.36s
[INFO] running `Command { std: "docker" "inspect" "d7b07f96c25cc3188271f92945d88fb3097b005e8d40608b93aa4c374f9863be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b07f96c25cc3188271f92945d88fb3097b005e8d40608b93aa4c374f9863be", kill_on_drop: false }`
[INFO] [stdout] d7b07f96c25cc3188271f92945d88fb3097b005e8d40608b93aa4c374f9863be
