[INFO] cloning repository https://github.com/salmmanfred/tomnull
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/salmmanfred/tomnull" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalmmanfred%2Ftomnull", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalmmanfred%2Ftomnull'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 130829a6a3d2ae231f9fb790c5d8d9bb35891fc4
[INFO] checking salmmanfred/tomnull against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalmmanfred%2Ftomnull" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/salmmanfred/tomnull 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/salmmanfred/tomnull
[INFO] finished tweaking git repo https://github.com/salmmanfred/tomnull
[INFO] tweaked toml for git repo https://github.com/salmmanfred/tomnull written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/salmmanfred/tomnull 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] c51278b579e95fb81b9893ed1f9c8d483ca870f51476c3195195980e6016f99f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c51278b579e95fb81b9893ed1f9c8d483ca870f51476c3195195980e6016f99f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c51278b579e95fb81b9893ed1f9c8d483ca870f51476c3195195980e6016f99f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51278b579e95fb81b9893ed1f9c8d483ca870f51476c3195195980e6016f99f", kill_on_drop: false }`
[INFO] [stdout] c51278b579e95fb81b9893ed1f9c8d483ca870f51476c3195195980e6016f99f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 79f28c324776398c242bbb6185d17a7973ec4a83723b40ab6a211ea475f7db12
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "79f28c324776398c242bbb6185d17a7973ec4a83723b40ab6a211ea475f7db12", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking tomnull v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/filehandler.rs (1 fix)
[INFO] [stderr]        Fixed src/main.rs (9 fixes)
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{prelude::*};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fx` is never read
[INFO] [stdout]    --> src/main.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut fx: Vec<String> = vec!("".to_string());
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fx2` is never read
[INFO] [stdout]    --> src/main.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let mut fx2: Vec<String> = vec!("".to_string());
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{prelude::*};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rfileOpen`
[INFO] [stdout]   --> src/filehandler.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rfileOpen(names: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rfileOpen` should have a snake case name
[INFO] [stdout]   --> src/filehandler.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rfileOpen(names: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `rfile_open`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `writeFile` should have a snake case name
[INFO] [stdout]   --> src/filehandler.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn writeFile(names: String, cont:&[u8]) -> i8 {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `write_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fx` is never read
[INFO] [stdout]    --> src/main.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut fx: Vec<String> = vec!("".to_string());
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fx2` is never read
[INFO] [stdout]    --> src/main.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let mut fx2: Vec<String> = vec!("".to_string());
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rfileOpen`
[INFO] [stdout]   --> src/filehandler.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rfileOpen(names: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rfileOpen` should have a snake case name
[INFO] [stdout]   --> src/filehandler.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rfileOpen(names: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `rfile_open`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `writeFile` should have a snake case name
[INFO] [stdout]   --> src/filehandler.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn writeFile(names: String, cont:&[u8]) -> i8 {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `write_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking tomnull v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{prelude::*};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fx` is never read
[INFO] [stdout]    --> src/main.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut fx: Vec<String> = vec!("".to_string());
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fx2` is never read
[INFO] [stdout]    --> src/main.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let mut fx2: Vec<String> = vec!("".to_string());
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rfileOpen`
[INFO] [stdout]   --> src/filehandler.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rfileOpen(names: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rfileOpen` should have a snake case name
[INFO] [stdout]   --> src/filehandler.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rfileOpen(names: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `rfile_open`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `writeFile` should have a snake case name
[INFO] [stdout]   --> src/filehandler.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn writeFile(names: String, cont:&[u8]) -> i8 {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `write_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{prelude::*};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fx` is never read
[INFO] [stdout]    --> src/main.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut fx: Vec<String> = vec!("".to_string());
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fx2` is never read
[INFO] [stdout]    --> src/main.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let mut fx2: Vec<String> = vec!("".to_string());
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rfileOpen`
[INFO] [stdout]   --> src/filehandler.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rfileOpen(names: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rfileOpen` should have a snake case name
[INFO] [stdout]   --> src/filehandler.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rfileOpen(names: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `rfile_open`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `writeFile` should have a snake case name
[INFO] [stdout]   --> src/filehandler.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn writeFile(names: String, cont:&[u8]) -> i8 {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `write_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "79f28c324776398c242bbb6185d17a7973ec4a83723b40ab6a211ea475f7db12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f28c324776398c242bbb6185d17a7973ec4a83723b40ab6a211ea475f7db12", kill_on_drop: false }`
[INFO] [stdout] 79f28c324776398c242bbb6185d17a7973ec4a83723b40ab6a211ea475f7db12