[INFO] cloning repository https://github.com/Rockfordal/rustlab_mutt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rockfordal/rustlab_mutt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRockfordal%2Frustlab_mutt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRockfordal%2Frustlab_mutt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33ed6b0c5482a0a0d53c33569e1a1d0a32251418
[INFO] checking Rockfordal/rustlab_mutt against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRockfordal%2Frustlab_mutt" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rockfordal/rustlab_mutt on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Rockfordal/rustlab_mutt
[INFO] finished tweaking git repo https://github.com/Rockfordal/rustlab_mutt
[INFO] tweaked toml for git repo https://github.com/Rockfordal/rustlab_mutt written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Rockfordal/rustlab_mutt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1aa0cd82d070ded5a8b46c0a13074f2f491a056e1478cb98d6345eecc7606b6b
[INFO] running `Command { std: "docker" "start" "-a" "1aa0cd82d070ded5a8b46c0a13074f2f491a056e1478cb98d6345eecc7606b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aa0cd82d070ded5a8b46c0a13074f2f491a056e1478cb98d6345eecc7606b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa0cd82d070ded5a8b46c0a13074f2f491a056e1478cb98d6345eecc7606b6b", kill_on_drop: false }`
[INFO] [stdout] 1aa0cd82d070ded5a8b46c0a13074f2f491a056e1478cb98d6345eecc7606b6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ffe1a0622f1dd068813a002eb8eb0926514622a850f874d0207089f6a558013d
[INFO] running `Command { std: "docker" "start" "-a" "ffe1a0622f1dd068813a002eb8eb0926514622a850f874d0207089f6a558013d", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking mutt v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (1 fix)
[INFO] [stderr]        Fixed src/muttcounter.rs (2 fixes)
[INFO] [stderr]        Fixed src/person.rs (3 fixes)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/muttcounter.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> MuttCounter {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nextId`
[INFO] [stdout]   --> src/muttcounter.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `personer`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     personer: HashMap<i32, Person>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `other`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     other: Vec<Other>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `komponenter`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     komponenter: HashMap<i32, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextId` should have a snake case name
[INFO] [stdout]   --> src/idcounter.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `next_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextId` should have a snake case name
[INFO] [stdout]   --> src/muttcounter.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `next_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/muttcounter.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> MuttCounter {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nextId`
[INFO] [stdout]   --> src/muttcounter.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `personer`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     personer: HashMap<i32, Person>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `other`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     other: Vec<Other>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `komponenter`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     komponenter: HashMap<i32, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextId` should have a snake case name
[INFO] [stdout]   --> src/idcounter.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `next_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextId` should have a snake case name
[INFO] [stdout]   --> src/muttcounter.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `next_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking mutt v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/muttcounter.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> MuttCounter {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nextId`
[INFO] [stdout]   --> src/muttcounter.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `personer`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     personer: HashMap<i32, Person>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `other`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     other: Vec<Other>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `komponenter`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     komponenter: HashMap<i32, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextId` should have a snake case name
[INFO] [stdout]   --> src/idcounter.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `next_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextId` should have a snake case name
[INFO] [stdout]   --> src/muttcounter.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `next_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/muttcounter.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> MuttCounter {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nextId`
[INFO] [stdout]   --> src/muttcounter.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `personer`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     personer: HashMap<i32, Person>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `other`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     other: Vec<Other>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `komponenter`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     komponenter: HashMap<i32, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextId` should have a snake case name
[INFO] [stdout]   --> src/idcounter.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `next_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextId` should have a snake case name
[INFO] [stdout]   --> src/muttcounter.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn nextId(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `next_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "ffe1a0622f1dd068813a002eb8eb0926514622a850f874d0207089f6a558013d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffe1a0622f1dd068813a002eb8eb0926514622a850f874d0207089f6a558013d", kill_on_drop: false }`
[INFO] [stdout] ffe1a0622f1dd068813a002eb8eb0926514622a850f874d0207089f6a558013d