[INFO] cloning repository https://github.com/HYliangkai/rustStd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HYliangkai/rustStd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHYliangkai%2FrustStd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHYliangkai%2FrustStd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7a1c247499e45b5a8df66df974aaf61f52dbe31
[INFO] testing HYliangkai/rustStd against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHYliangkai%2FrustStd" "/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/HYliangkai/rustStd
[INFO] finished tweaking git repo https://github.com/HYliangkai/rustStd
[INFO] tweaked toml for git repo https://github.com/HYliangkai/rustStd written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/HYliangkai/rustStd on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/HYliangkai/rustStd 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8447368b6993da748c35d2d719edcdc4eaf34f85afdeebebaf21cf995e0dd54b
[INFO] running `Command { std: "docker" "start" "-a" "8447368b6993da748c35d2d719edcdc4eaf34f85afdeebebaf21cf995e0dd54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8447368b6993da748c35d2d719edcdc4eaf34f85afdeebebaf21cf995e0dd54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8447368b6993da748c35d2d719edcdc4eaf34f85afdeebebaf21cf995e0dd54b", kill_on_drop: false }`
[INFO] [stdout] 8447368b6993da748c35d2d719edcdc4eaf34f85afdeebebaf21cf995e0dd54b
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c2119ddf05708b721045ac53c857e3280bd5c62aba0772ac28d832040b7ffc9
[INFO] running `Command { std: "docker" "start" "-a" "3c2119ddf05708b721045ac53c857e3280bd5c62aba0772ac28d832040b7ffc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_std v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `File`, `OpenOptions`, `io::Write`, and `read_to_string`
[INFO] [stdout]  --> src/stda/FS.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ fs::{ read_to_string, File, OpenOptions }, io::Write };
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `SystemTime`, and `UNIX_EPOCH`
[INFO] [stdout]  --> src/stda/date.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]  --> src/core/converter/from_into.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct A {
[INFO] [stdout]   |        ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `B` is never constructed
[INFO] [stdout]  --> src/core/converter/from_into.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct B {
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/core/iter.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct NIterator {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 7 |     index: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sqp` is never used
[INFO] [stdout]   --> src/core/iter.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn sqp() {}
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `FS` should have a snake case name
[INFO] [stdout]  --> src/stda/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod FS;
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `fs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `IO` should have a snake case name
[INFO] [stdout]  --> src/stda/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod IO;
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "3c2119ddf05708b721045ac53c857e3280bd5c62aba0772ac28d832040b7ffc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c2119ddf05708b721045ac53c857e3280bd5c62aba0772ac28d832040b7ffc9", kill_on_drop: false }`
[INFO] [stdout] 3c2119ddf05708b721045ac53c857e3280bd5c62aba0772ac28d832040b7ffc9
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1356c9cb6181b28bb356d84b1954c82cf7239748182d87617449c350ac4417cb
[INFO] running `Command { std: "docker" "start" "-a" "1356c9cb6181b28bb356d84b1954c82cf7239748182d87617449c350ac4417cb", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `File`, `OpenOptions`, `io::Write`, and `read_to_string`
[INFO] [stdout]  --> src/stda/FS.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ fs::{ read_to_string, File, OpenOptions }, io::Write };
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `SystemTime`, and `UNIX_EPOCH`
[INFO] [stdout]  --> src/stda/date.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]  --> src/core/converter/from_into.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct A {
[INFO] [stdout]   |        ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `B` is never constructed
[INFO] [stdout]  --> src/core/converter/from_into.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct B {
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/core/iter.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct NIterator {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 7 |     index: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sqp` is never used
[INFO] [stdout]   --> src/core/iter.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn sqp() {}
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `FS` should have a snake case name
[INFO] [stdout]  --> src/stda/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod FS;
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `fs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `IO` should have a snake case name
[INFO] [stdout]  --> src/stda/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod IO;
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust_std v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `File` and `read_to_string`
[INFO] [stdout]  --> src/stda/FS.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ fs::{ read_to_string, File, OpenOptions }, io::Write };
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/core/converter/from_into.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let b: B = a.into();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bb`
[INFO] [stdout]   --> src/core/converter/from_into.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let bb = B::from(aa);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_bb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fives`
[INFO] [stdout]  --> src/stda/date.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let fives = Duration::from_micros(21);
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fives`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/core/converter/from_into.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct B {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 5 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/core/iter.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct NIterator {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 7 |     index: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sqp` is never used
[INFO] [stdout]   --> src/core/iter.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn sqp() {}
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `FS` should have a snake case name
[INFO] [stdout]  --> src/stda/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod FS;
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `fs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `IO` should have a snake case name
[INFO] [stdout]  --> src/stda/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod IO;
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "1356c9cb6181b28bb356d84b1954c82cf7239748182d87617449c350ac4417cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1356c9cb6181b28bb356d84b1954c82cf7239748182d87617449c350ac4417cb", kill_on_drop: false }`
[INFO] [stdout] 1356c9cb6181b28bb356d84b1954c82cf7239748182d87617449c350ac4417cb
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] de8b364aa518d7ecafcd1ff866638bafb2cf04a95ddbcb031e9a4238eddaf383
[INFO] running `Command { std: "docker" "start" "-a" "de8b364aa518d7ecafcd1ff866638bafb2cf04a95ddbcb031e9a4238eddaf383", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `File`, `OpenOptions`, `io::Write`, and `read_to_string`
[INFO] [stderr]  --> src/stda/FS.rs:1:18
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{ fs::{ read_to_string, File, OpenOptions }, io::Write };
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `SystemTime`, and `UNIX_EPOCH`
[INFO] [stderr]  --> src/stda/date.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stderr]   |                 ^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `A` is never constructed
[INFO] [stderr]  --> src/core/converter/from_into.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct A {
[INFO] [stderr]   |        ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `B` is never constructed
[INFO] [stderr]  --> src/core/converter/from_into.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct B {
[INFO] [stderr]   |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: field `index` is never read
[INFO] [stderr]  --> src/core/iter.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct NIterator {
[INFO] [stderr]   |            --------- field in this struct
[INFO] [stderr] 7 |     index: i32,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sqp` is never used
[INFO] [stderr]   --> src/core/iter.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn sqp() {}
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `FS` should have a snake case name
[INFO] [stderr]  --> src/stda/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod FS;
[INFO] [stderr]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `fs`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `IO` should have a snake case name
[INFO] [stderr]  --> src/stda/mod.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub mod IO;
[INFO] [stderr]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `io`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_std` (lib) generated 8 warnings (run `cargo fix --lib -p rust_std` to apply 2 suggestions)
[INFO] [stderr] warning: unused imports: `File` and `read_to_string`
[INFO] [stderr]  --> src/stda/FS.rs:1:18
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{ fs::{ read_to_string, File, OpenOptions }, io::Write };
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/core/converter/from_into.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let b: B = a.into();
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bb`
[INFO] [stderr]   --> src/core/converter/from_into.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let bb = B::from(aa);
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_bb`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fives`
[INFO] [stderr]  --> src/stda/date.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let fives = Duration::from_micros(21);
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fives`
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]  --> src/core/converter/from_into.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct B {
[INFO] [stderr]   |        - field in this struct
[INFO] [stderr] 5 |     name: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_std` (lib test) generated 9 warnings (4 duplicates) (run `cargo fix --lib -p rust_std --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_std-c96214b52474d440)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test core::converter::from_into::t1 ... ok
[INFO] [stdout] test stda::date::tta ... ok
[INFO] [stdout] test stda::FS::tty ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- stda::FS::tty stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'stda::FS::tty' panicked at src/stda/FS.rs:6:67:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x62669eacef32 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62669eacef32 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62669eacef32 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x62669eacef32 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x62669eaf3ff3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x62669eaf3ff3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x62669eacbec3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62669eacbec3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x62669eaced82 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x62669ead049c - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x62669ead02f2 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x62669ea98414 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x62669ea98414 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x62669ead0e7b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x62669ead0e7b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x62669ead0c4a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x62669eacf429 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x62669ead08dd - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x62669eaf2b70 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x62669eaf2ee6 - core::result::unwrap_failed::hfbbd3c78a73fea3d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1761:5
[INFO] [stdout]   20:     0x62669ea5ec65 - core::result::Result<T,E>::unwrap::h7e7982ff8ae759f8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x62669ea5ec65 - rust_std::stda::FS::tty::he994f9f4c706a808
[INFO] [stdout]                                at /opt/rustwide/workdir/src/stda/FS.rs:6:67
[INFO] [stdout]   22:     0x62669ea5ec65 - rust_std::stda::FS::tty::{{closure}}::hcf4e59f6dd0f7178
[INFO] [stdout]                                at /opt/rustwide/workdir/src/stda/FS.rs:4:9
[INFO] [stdout]   23:     0x62669ea5ec65 - core::ops::function::FnOnce::call_once::h9e999cbb0495c39c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x62669ea9db4b - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x62669ea9db4b - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x62669ea9cd8e - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x62669ea9cd8e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x62669ea9cd8e - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x62669ea9cd8e - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x62669ea9cd8e - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x62669ea9cd8e - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x62669ea9cd8e - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x62669ea60934 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x62669ea60934 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x62669ea642da - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x62669ea642da - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x62669ea642da - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x62669ea642da - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x62669ea642da - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x62669ea642da - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x62669ea642da - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x62669ead3dd7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x62669ead3dd7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x62669ead3dd7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x709089bdaaa4 - <unknown>
[INFO] [stdout]   46:     0x709089c67a34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     stda::FS::tty
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "de8b364aa518d7ecafcd1ff866638bafb2cf04a95ddbcb031e9a4238eddaf383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8b364aa518d7ecafcd1ff866638bafb2cf04a95ddbcb031e9a4238eddaf383", kill_on_drop: false }`
[INFO] [stdout] de8b364aa518d7ecafcd1ff866638bafb2cf04a95ddbcb031e9a4238eddaf383
