[INFO] fetching crate nsh 0.4.2... [INFO] checking nsh-0.4.2 against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011 [INFO] extracting crate nsh 0.4.2 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate nsh 0.4.2 [INFO] finished tweaking crates.io crate nsh 0.4.2 [INFO] tweaked toml for crates.io crate nsh 0.4.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate nsh 0.4.2 on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate nsh 0.4.2 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" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded phf_shared v0.9.0 [INFO] [stderr] Downloaded phf_generator v0.9.0 [INFO] [stderr] Downloaded phf_macros v0.9.0 [INFO] [stderr] Downloaded signal-hook v0.2.3 [INFO] [stderr] Downloaded phf v0.9.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 19cf5418dac55d4d049ddf3cd59e9ad7182e8225287e029dee367995ce3df992 [INFO] running `Command { std: "docker" "start" "-a" "19cf5418dac55d4d049ddf3cd59e9ad7182e8225287e029dee367995ce3df992", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "19cf5418dac55d4d049ddf3cd59e9ad7182e8225287e029dee367995ce3df992", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19cf5418dac55d4d049ddf3cd59e9ad7182e8225287e029dee367995ce3df992", kill_on_drop: false }` [INFO] [stdout] 19cf5418dac55d4d049ddf3cd59e9ad7182e8225287e029dee367995ce3df992 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5fdd905f220fc3588811d80277c95678c23d7b42c56aebb4c3a0a7c38336979f [INFO] running `Command { std: "docker" "start" "-a" "5fdd905f220fc3588811d80277c95678c23d7b42c56aebb4c3a0a7c38336979f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling siphasher v0.3.5 [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling cc v1.0.69 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Compiling phf_shared v0.9.0 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Checking gimli v0.24.0 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking rustc-demangle v0.1.20 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking diff v0.1.12 [INFO] [stderr] Checking object v0.25.3 [INFO] [stderr] Compiling backtrace v0.3.60 [INFO] [stderr] Checking pretty_assertions v0.7.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling pest_meta v2.1.3 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Checking addr2line v0.15.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking nix v0.22.0 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking signal-hook v0.2.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking fern v0.6.0 [INFO] [stderr] Checking signal-hook v0.1.17 [INFO] [stderr] Checking crossterm v0.18.2 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Compiling phf_generator v0.9.0 [INFO] [stderr] Compiling synstructure v0.12.5 [INFO] [stderr] Compiling pest_generator v2.1.3 [INFO] [stderr] Compiling structopt-derive v0.4.15 [INFO] [stderr] Compiling phf_macros v0.9.0 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Checking phf v0.9.0 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking structopt v0.3.22 [INFO] [stderr] Checking nsh v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `login` is never read [INFO] [stdout] --> src/main.rs:153:5 [INFO] [stdout] | [INFO] [stdout] 144 | struct Opt { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 153 | login: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/builtins/mod.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | #[derive(Debug, Fail)] [INFO] [stdout] | ^--- [INFO] [stdout] | | [INFO] [stdout] | `Fail` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_DERIVE_failure_Fail_FOR_InternalCommandError` [INFO] [stdout] 35 | pub enum InternalCommandError { [INFO] [stdout] | -------------------- `InternalCommandError` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: `#[warn(non_local_definitions)]` on by default [INFO] [stdout] = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/builtins/mod.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | #[derive(Debug, Fail)] [INFO] [stdout] | ^--- [INFO] [stdout] | | [INFO] [stdout] | `Display` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_DERIVE_failure_core_fmt_Display_FOR_InternalCommandError` [INFO] [stdout] 35 | pub enum InternalCommandError { [INFO] [stdout] | -------------------- `InternalCommandError` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/fuzzy.rs:37:17 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn iter(&self) -> std::slice::Iter<(Option, String)> { [INFO] [stdout] | ^^^^^ ---------------------------------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 37 | pub fn iter(&self) -> std::slice::Iter<'_, (Option, String)> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/pattern.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug, Fail)] [INFO] [stdout] | ^--- [INFO] [stdout] | | [INFO] [stdout] | `Fail` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_DERIVE_failure_Fail_FOR_NoMatchesError` [INFO] [stdout] 5 | #[fail(display = "no matches")] [INFO] [stdout] 6 | pub struct NoMatchesError; [INFO] [stdout] | -------------- `NoMatchesError` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/pattern.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug, Fail)] [INFO] [stdout] | ^--- [INFO] [stdout] | | [INFO] [stdout] | `Display` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_DERIVE_failure_core_fmt_Display_FOR_NoMatchesError` [INFO] [stdout] 5 | #[fail(display = "no matches")] [INFO] [stdout] 6 | pub struct NoMatchesError; [INFO] [stdout] | -------------- `NoMatchesError` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/shell.rs:227:27 [INFO] [stdout] | [INFO] [stdout] 227 | pub fn exported_names(&self) -> std::collections::hash_set::Iter { [INFO] [stdout] | ^^^^^ ---------------------------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 227 | pub fn exported_names(&self) -> std::collections::hash_set::Iter<'_, String> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/shell.rs:231:20 [INFO] [stdout] | [INFO] [stdout] 231 | pub fn aliases(&self) -> std::collections::hash_map::Iter { [INFO] [stdout] | ^^^^^ ------------------------------------------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 231 | pub fn aliases(&self) -> std::collections::hash_map::Iter<'_, String, String> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `login` is never read [INFO] [stdout] --> src/main.rs:153:5 [INFO] [stdout] | [INFO] [stdout] 144 | struct Opt { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 153 | login: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/builtins/mod.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | #[derive(Debug, Fail)] [INFO] [stdout] | ^--- [INFO] [stdout] | | [INFO] [stdout] | `Fail` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_DERIVE_failure_Fail_FOR_InternalCommandError` [INFO] [stdout] 35 | pub enum InternalCommandError { [INFO] [stdout] | -------------------- `InternalCommandError` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: `#[warn(non_local_definitions)]` on by default [INFO] [stdout] = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/builtins/mod.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | #[derive(Debug, Fail)] [INFO] [stdout] | ^--- [INFO] [stdout] | | [INFO] [stdout] | `Display` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_DERIVE_failure_core_fmt_Display_FOR_InternalCommandError` [INFO] [stdout] 35 | pub enum InternalCommandError { [INFO] [stdout] | -------------------- `InternalCommandError` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/fuzzy.rs:37:17 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn iter(&self) -> std::slice::Iter<(Option, String)> { [INFO] [stdout] | ^^^^^ ---------------------------------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 37 | pub fn iter(&self) -> std::slice::Iter<'_, (Option, String)> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/pattern.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug, Fail)] [INFO] [stdout] | ^--- [INFO] [stdout] | | [INFO] [stdout] | `Fail` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_DERIVE_failure_Fail_FOR_NoMatchesError` [INFO] [stdout] 5 | #[fail(display = "no matches")] [INFO] [stdout] 6 | pub struct NoMatchesError; [INFO] [stdout] | -------------- `NoMatchesError` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `nsh` (bin "nsh" test); 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to parse process output: `/opt/rustwide/rustup-home/toolchains/8f21a5c92ea55c348c275a1bc4fedbdf181e0d64/bin/rustc --crate-name nsh --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=015f106d2695724b -C extra-filename=-56eac7931e4fa7c9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-199eac17bc167ce5.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-3d9667d46df2ecb8.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-f0eecb0c4ac89364.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-5065672c8a795f7e.rmeta --extern fern=/opt/rustwide/target/debug/deps/libfern-91bc5cd2e80ba9cc.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-b5807f258ffc05e7.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-3dcad08886afe173.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-fa4b5bf9e33352b0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-95bf14b36d81fdea.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-bde4a6109d23a249.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-e02cd0c96f3010b8.rmeta --extern pest_derive=/opt/rustwide/target/debug/deps/libpest_derive-9368fa565c42411d.so --extern phf=/opt/rustwide/target/debug/deps/libphf-3fbc8cf99681545f.rmeta --extern pretty_assertions=/opt/rustwide/target/debug/deps/libpretty_assertions-5c1be0d41ac445b6.rmeta --extern signal_hook=/opt/rustwide/target/debug/deps/libsignal_hook-d18593c4adb379a5.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-e6e93ab2868e7479.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-896663a058596674.rmeta --cap-lints=forbid` (exit status: 0) [INFO] running `Command { std: "docker" "inspect" "5fdd905f220fc3588811d80277c95678c23d7b42c56aebb4c3a0a7c38336979f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fdd905f220fc3588811d80277c95678c23d7b42c56aebb4c3a0a7c38336979f", kill_on_drop: false }` [INFO] [stdout] 5fdd905f220fc3588811d80277c95678c23d7b42c56aebb4c3a0a7c38336979f