[INFO] cloning repository https://github.com/Mirabellensaft/pH_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mirabellensaft/pH_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMirabellensaft%2FpH_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMirabellensaft%2FpH_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f004ae78603f35a47e6ae7a8fee873b83686018
[INFO] checking Mirabellensaft/pH_calculator against master#d255c6a57c393db6221b1ff700daea478436f1cd for pr-122317
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMirabellensaft%2FpH_calculator" "/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/Mirabellensaft/pH_calculator on toolchain d255c6a57c393db6221b1ff700daea478436f1cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d255c6a57c393db6221b1ff700daea478436f1cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mirabellensaft/pH_calculator
[INFO] finished tweaking git repo https://github.com/Mirabellensaft/pH_calculator
[INFO] tweaked toml for git repo https://github.com/Mirabellensaft/pH_calculator written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Mirabellensaft/pH_calculator 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" "+d255c6a57c393db6221b1ff700daea478436f1cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking Mirabellensaft/pH_calculator against try#1f7553361c08f8eafdc645e09215667278ab86f4 for pr-122317
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMirabellensaft%2FpH_calculator" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mirabellensaft/pH_calculator on toolchain 1f7553361c08f8eafdc645e09215667278ab86f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7553361c08f8eafdc645e09215667278ab86f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mirabellensaft/pH_calculator
[INFO] finished tweaking git repo https://github.com/Mirabellensaft/pH_calculator
[INFO] tweaked toml for git repo https://github.com/Mirabellensaft/pH_calculator written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Mirabellensaft/pH_calculator 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" "+1f7553361c08f8eafdc645e09215667278ab86f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1f7553361c08f8eafdc645e09215667278ab86f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2a8511b83b4369259f259df2bb4b656d35b8e0524d13e8de5f11d657385e7af
[INFO] running `Command { std: "docker" "start" "-a" "c2a8511b83b4369259f259df2bb4b656d35b8e0524d13e8de5f11d657385e7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2a8511b83b4369259f259df2bb4b656d35b8e0524d13e8de5f11d657385e7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2a8511b83b4369259f259df2bb4b656d35b8e0524d13e8de5f11d657385e7af", kill_on_drop: false }`
[INFO] [stdout] c2a8511b83b4369259f259df2bb4b656d35b8e0524d13e8de5f11d657385e7af
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1f7553361c08f8eafdc645e09215667278ab86f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 847840a1acdfd0ebee3a531f0337bff80b7758704f8461fd5527fd001db8a8b0
[INFO] running `Command { std: "docker" "start" "-a" "847840a1acdfd0ebee3a531f0337bff80b7758704f8461fd5527fd001db8a8b0", kill_on_drop: false }`
[INFO] [stderr]     Checking pH_calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name_titrant`
[INFO] [stdout]   --> src/main.rs:87:96
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn pH_strong(conc_ions_titrant: f32, vol_analyte: f32, vol_titrant: f32, valence_titrant: f32, name_titrant: &str) -> f32 {
[INFO] [stdout]    |                                                                                                ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_titrant`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pH_analyte` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let pH_analyte = pH_strong(properties_titrant.concentration, properties_analyte.volume, properties_titrant.volume, properties_titrant...
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `p_h_analyte`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     io::stdin().read_line(&mut name);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let _ = io::stdin().read_line(&mut name);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name_titrant`
[INFO] [stdout]   --> src/main.rs:87:96
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn pH_strong(conc_ions_titrant: f32, vol_analyte: f32, vol_titrant: f32, valence_titrant: f32, name_titrant: &str) -> f32 {
[INFO] [stdout]    |                                                                                                ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_titrant`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pH_analyte` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let pH_analyte = pH_strong(properties_titrant.concentration, properties_analyte.volume, properties_titrant.volume, properties_titrant...
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `p_h_analyte`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pH_strong` should have a snake case name
[INFO] [stdout]   --> src/main.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn pH_strong(conc_ions_titrant: f32, vol_analyte: f32, vol_titrant: f32, valence_titrant: f32, name_titrant: &str) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `p_h_strong`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `conc_OH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let conc_OH = conc_ions_titrant;
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `conc_oh`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `conc_H` should have a snake case name
[INFO] [stdout]   --> src/main.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let conc_H = conc_analyte_ions(vol_titrant, conc_OH, vol_analyte);
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `conc_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `conc_H` should have a snake case name
[INFO] [stdout]   --> src/main.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let conc_H = conc_ions_titrant;
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `conc_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `conc_OH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let conc_OH = conc_analyte_ions(vol_titrant, conc_H, vol_analyte);
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `conc_oh`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     io::stdin().read_line(&mut name);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let _ = io::stdin().read_line(&mut name);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pOH_analyte` should have a snake case name
[INFO] [stdout]   --> src/main.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let pOH_analyte = potentia(conc_OH);
[INFO] [stdout]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `p_oh_analyte`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pH_strong` should have a snake case name
[INFO] [stdout]   --> src/main.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn pH_strong(conc_ions_titrant: f32, vol_analyte: f32, vol_titrant: f32, valence_titrant: f32, name_titrant: &str) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `p_h_strong`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `conc_OH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let conc_OH = conc_ions_titrant;
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `conc_oh`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `conc_H` should have a snake case name
[INFO] [stdout]   --> src/main.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let conc_H = conc_analyte_ions(vol_titrant, conc_OH, vol_analyte);
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `conc_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `conc_H` should have a snake case name
[INFO] [stdout]   --> src/main.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let conc_H = conc_ions_titrant;
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `conc_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `conc_OH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let conc_OH = conc_analyte_ions(vol_titrant, conc_H, vol_analyte);
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `conc_oh`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pOH_analyte` should have a snake case name
[INFO] [stdout]   --> src/main.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let pOH_analyte = potentia(conc_OH);
[INFO] [stdout]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `p_oh_analyte`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "847840a1acdfd0ebee3a531f0337bff80b7758704f8461fd5527fd001db8a8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "847840a1acdfd0ebee3a531f0337bff80b7758704f8461fd5527fd001db8a8b0", kill_on_drop: false }`
[INFO] [stdout] 847840a1acdfd0ebee3a531f0337bff80b7758704f8461fd5527fd001db8a8b0