[INFO] cloning repository https://github.com/Tim-Nosco/tinysh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tim-Nosco/tinysh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTim-Nosco%2Ftinysh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTim-Nosco%2Ftinysh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9df638d8d4b4fdfc73170db00db62280edd29891
[INFO] checking Tim-Nosco/tinysh against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTim-Nosco%2Ftinysh" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Tim-Nosco/tinysh
[INFO] finished tweaking git repo https://github.com/Tim-Nosco/tinysh
[INFO] tweaked toml for git repo https://github.com/Tim-Nosco/tinysh written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tim-Nosco/tinysh on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tim-Nosco/tinysh 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_termios v0.1.2
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54181b8c2080f9ac5501c280988f095c096b2bb15b67c2ce9a7c62c50c329c44
[INFO] running `Command { std: "docker" "start" "-a" "54181b8c2080f9ac5501c280988f095c096b2bb15b67c2ce9a7c62c50c329c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54181b8c2080f9ac5501c280988f095c096b2bb15b67c2ce9a7c62c50c329c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54181b8c2080f9ac5501c280988f095c096b2bb15b67c2ce9a7c62c50c329c44", kill_on_drop: false }`
[INFO] [stdout] 54181b8c2080f9ac5501c280988f095c096b2bb15b67c2ce9a7c62c50c329c44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ac869308115891e55e59ebc19444a19d85a9df3eb0b9d3fa0772ab69d750e45
[INFO] running `Command { std: "docker" "start" "-a" "5ac869308115891e55e59ebc19444a19d85a9df3eb0b9d3fa0772ab69d750e45", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]     Checking zeroize v1.5.7
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]     Checking base64ct v1.5.1
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]     Checking const-oid v0.9.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking pem-rfc7468 v0.6.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking der v0.6.0
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking os_pipe v1.0.1
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking ff v0.12.0
[INFO] [stderr]     Checking crypto-bigint v0.4.8
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking universal-hash v0.5.0
[INFO] [stderr]     Checking cipher v0.4.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking signature v1.5.0
[INFO] [stderr]     Checking sha2 v0.10.2
[INFO] [stderr]     Checking group v0.12.0
[INFO] [stderr]     Checking aead v0.5.1
[INFO] [stderr]     Checking spki v0.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking hkdf v0.12.3
[INFO] [stderr]     Checking pkcs8 v0.9.0
[INFO] [stderr]     Checking rfc6979 v0.3.0
[INFO] [stderr]     Checking ctr v0.9.1
[INFO] [stderr]     Checking aes v0.8.1
[INFO] [stderr]     Checking polyval v0.6.0
[INFO] [stderr]     Checking sec1 v0.3.0
[INFO] [stderr]     Checking ghash v0.5.0
[INFO] [stderr]     Checking elliptic-curve v0.12.2
[INFO] [stderr]     Checking aes-gcm v0.10.1
[INFO] [stderr]     Checking ecdsa v0.14.3
[INFO] [stderr]     Checking p256 v0.11.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking clap v3.2.16
[INFO] [stderr]     Checking tinysh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/tshl.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/relay.rs:318:25
[INFO] [stdout]     |
[INFO] [stdout] 318 |                 let this_node: &mut (dyn Read) =
[INFO] [stdout]     |                                     ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 318 -                 let this_node: &mut (dyn Read) =
[INFO] [stdout] 318 +                 let this_node: &mut dyn Read =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/relay.rs:339:25
[INFO] [stdout]     |
[INFO] [stdout] 339 |                 let this_node: &mut (dyn Write) =
[INFO] [stdout]     |                                     ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 339 -                 let this_node: &mut (dyn Write) =
[INFO] [stdout] 339 +                 let this_node: &mut dyn Write =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `challenge`
[INFO] [stdout]    --> src/tshl.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     #[cfg(feature = "challenge")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `challenge` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/tshr.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias, int_log, int_roundings)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/relay.rs:318:25
[INFO] [stdout]     |
[INFO] [stdout] 318 |                 let this_node: &mut (dyn Read) =
[INFO] [stdout]     |                                     ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 318 -                 let this_node: &mut (dyn Read) =
[INFO] [stdout] 318 +                 let this_node: &mut dyn Read =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/relay.rs:339:25
[INFO] [stdout]     |
[INFO] [stdout] 339 |                 let this_node: &mut (dyn Write) =
[INFO] [stdout]     |                                     ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 339 -                 let this_node: &mut (dyn Write) =
[INFO] [stdout] 339 +                 let this_node: &mut dyn Write =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `challenge`
[INFO] [stdout]    --> src/tshr.rs:273:8
[INFO] [stdout]     |
[INFO] [stdout] 273 |     #[cfg(feature = "challenge")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `challenge` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `int_log` has been stable since 1.67.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/tshr.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias, int_log, int_roundings)]
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/tshl.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/relay.rs:318:25
[INFO] [stdout]     |
[INFO] [stdout] 318 |                 let this_node: &mut (dyn Read) =
[INFO] [stdout]     |                                     ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 318 -                 let this_node: &mut (dyn Read) =
[INFO] [stdout] 318 +                 let this_node: &mut dyn Read =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/relay.rs:339:25
[INFO] [stdout]     |
[INFO] [stdout] 339 |                 let this_node: &mut (dyn Write) =
[INFO] [stdout]     |                                     ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 339 -                 let this_node: &mut (dyn Write) =
[INFO] [stdout] 339 +                 let this_node: &mut dyn Write =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `challenge`
[INFO] [stdout]    --> src/tshl.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     #[cfg(feature = "challenge")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `challenge` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/tshr.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias, int_log, int_roundings)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/relay.rs:318:25
[INFO] [stdout]     |
[INFO] [stdout] 318 |                 let this_node: &mut (dyn Read) =
[INFO] [stdout]     |                                     ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 318 -                 let this_node: &mut (dyn Read) =
[INFO] [stdout] 318 +                 let this_node: &mut dyn Read =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/relay.rs:339:25
[INFO] [stdout]     |
[INFO] [stdout] 339 |                 let this_node: &mut (dyn Write) =
[INFO] [stdout]     |                                     ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 339 -                 let this_node: &mut (dyn Write) =
[INFO] [stdout] 339 +                 let this_node: &mut dyn Write =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `challenge`
[INFO] [stdout]    --> src/tshr.rs:273:8
[INFO] [stdout]     |
[INFO] [stdout] 273 |     #[cfg(feature = "challenge")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `challenge` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `int_log` has been stable since 1.67.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/tshr.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias, int_log, int_roundings)]
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/relay.rs:313:8
[INFO] [stdout]     |
[INFO] [stdout] 313 |             let mut buf = &mut bufs[idx];
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tinysh` (bin "tshl") due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/relay.rs:313:8
[INFO] [stdout]     |
[INFO] [stdout] 313 |             let mut buf = &mut bufs[idx];
[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/relay.rs:313:8
[INFO] [stdout]     |
[INFO] [stdout] 313 |             let mut buf = &mut bufs[idx];
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tinysh` (bin "tshr") due to 1 previous error; 5 warnings emitted
[INFO] [stderr] error: could not compile `tinysh` (bin "tshl" test) due to 1 previous error; 4 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/relay.rs:313:8
[INFO] [stdout]     |
[INFO] [stdout] 313 |             let mut buf = &mut bufs[idx];
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tinysh` (bin "tshr" test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5ac869308115891e55e59ebc19444a19d85a9df3eb0b9d3fa0772ab69d750e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ac869308115891e55e59ebc19444a19d85a9df3eb0b9d3fa0772ab69d750e45", kill_on_drop: false }`
[INFO] [stdout] 5ac869308115891e55e59ebc19444a19d85a9df3eb0b9d3fa0772ab69d750e45
