[INFO] cloning repository https://github.com/azaurus1/payment_engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/azaurus1/payment_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaurus1%2Fpayment_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaurus1%2Fpayment_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33da2b6ec6aedb6523d045f46ede62f5e8d40b80
[INFO] checking azaurus1/payment_engine against try#48c9d93cf65d550d124c40108859fd993778c157 for pr-153692-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaurus1%2Fpayment_engine" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/azaurus1/payment_engine
[INFO] finished tweaking git repo https://github.com/azaurus1/payment_engine
[INFO] tweaked toml for git repo https://github.com/azaurus1/payment_engine written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/azaurus1/payment_engine on toolchain 48c9d93cf65d550d124c40108859fd993778c157
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/azaurus1/payment_engine 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" "+48c9d93cf65d550d124c40108859fd993778c157" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b85ce93e59eee8757e48c99d6f60a45d835e895fc2fcf103b4ce405d4819bf2
[INFO] running `Command { std: "docker" "start" "-a" "2b85ce93e59eee8757e48c99d6f60a45d835e895fc2fcf103b4ce405d4819bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b85ce93e59eee8757e48c99d6f60a45d835e895fc2fcf103b4ce405d4819bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b85ce93e59eee8757e48c99d6f60a45d835e895fc2fcf103b4ce405d4819bf2", kill_on_drop: false }`
[INFO] [stdout] 2b85ce93e59eee8757e48c99d6f60a45d835e895fc2fcf103b4ce405d4819bf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ab5b28630b6c239505ad768b14458d6fd5e1e0e058ffa9e342ec2b54d334054
[INFO] running `Command { std: "docker" "start" "-a" "5ab5b28630b6c239505ad768b14458d6fd5e1e0e058ffa9e342ec2b54d334054", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking payment_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]  --> src/record.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::Serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Deserialize`
[INFO] [stdout]  --> src/state.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]  --> src/record.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::Serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Deserialize`
[INFO] [stdout]  --> src/state.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/state.rs:30:79
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn dispute(&mut self, tx:u32, previous_transactions:&HashMap<u32,f64>,mut disputed_transactions:&Vec<u32>){
[INFO] [stdout]    |                                                                               ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                                               |
[INFO] [stdout]    |                                                                               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/state.rs:41:80
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn resolve(&mut self, tx:u32, previous_transactions:&HashMap<u32,f64>, mut disputed_transactions:&Vec<u32>){
[INFO] [stdout]    |                                                                                ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                                                |
[INFO] [stdout]    |                                                                                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/state.rs:53:83
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn chargeback(&mut self, tx:u32, previous_transactions:&HashMap<u32,f64>, mut disputed_transactions:&Vec<u32>){
[INFO] [stdout]    |                                                                                   ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                                                   |
[INFO] [stdout]    |                                                                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/lib.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 |     for (client,state) in &current_state {
[INFO] [stdout]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[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/lib.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         wtr.serialize(&state);
[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] 82 |         let _ = wtr.serialize(&state);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     wtr.flush();
[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] 84 |     let _ = wtr.flush();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/state.rs:30:79
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn dispute(&mut self, tx:u32, previous_transactions:&HashMap<u32,f64>,mut disputed_transactions:&Vec<u32>){
[INFO] [stdout]    |                                                                               ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                                               |
[INFO] [stdout]    |                                                                               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/state.rs:41:80
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn resolve(&mut self, tx:u32, previous_transactions:&HashMap<u32,f64>, mut disputed_transactions:&Vec<u32>){
[INFO] [stdout]    |                                                                                ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                                                |
[INFO] [stdout]    |                                                                                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/state.rs:53:83
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn chargeback(&mut self, tx:u32, previous_transactions:&HashMap<u32,f64>, mut disputed_transactions:&Vec<u32>){
[INFO] [stdout]    |                                                                                   ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                                                   |
[INFO] [stdout]    |                                                                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/lib.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 |     for (client,state) in &current_state {
[INFO] [stdout]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[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/lib.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         wtr.serialize(&state);
[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] 82 |         let _ = wtr.serialize(&state);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     wtr.flush();
[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] 84 |     let _ = wtr.flush();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.02s
[INFO] running `Command { std: "docker" "inspect" "5ab5b28630b6c239505ad768b14458d6fd5e1e0e058ffa9e342ec2b54d334054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ab5b28630b6c239505ad768b14458d6fd5e1e0e058ffa9e342ec2b54d334054", kill_on_drop: false }`
[INFO] [stdout] 5ab5b28630b6c239505ad768b14458d6fd5e1e0e058ffa9e342ec2b54d334054
