[INFO] updating cached repository codesections/mnemonic [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/codesections/mnemonic [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/codesections/mnemonic" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/codesections/mnemonic"` [INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/codesections/mnemonic'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/codesections/mnemonic" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/codesections/mnemonic"` [INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/codesections/mnemonic'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c63b320f2a323cd661cc51ceb520f86c80cb8af9 [INFO] sha for GitHub repo codesections/mnemonic: c63b320f2a323cd661cc51ceb520f86c80cb8af9 [INFO] validating manifest of codesections/mnemonic on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of codesections/mnemonic on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing codesections/mnemonic [INFO] finished frobbing codesections/mnemonic [INFO] frobbed toml for codesections/mnemonic written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/codesections/mnemonic/Cargo.toml [INFO] started frobbing codesections/mnemonic [INFO] finished frobbing codesections/mnemonic [INFO] frobbed toml for codesections/mnemonic written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/codesections/mnemonic/Cargo.toml [INFO] crate codesections/mnemonic already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking codesections/mnemonic against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/codesections/mnemonic:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] bea2a437974f3422e9f431653ffe3fb668fa28f15370edf2662005cfc306a208 [INFO] running `"docker" "start" "-a" "bea2a437974f3422e9f431653ffe3fb668fa28f15370edf2662005cfc306a208"` [INFO] [stderr] Compiling proc-macro2 v0.4.26 [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling memchr v2.1.3 [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Compiling ident_case v1.0.0 [INFO] [stderr] Compiling serde v1.0.85 [INFO] [stderr] Compiling plist v0.3.0 [INFO] [stderr] Compiling derive_builder v0.7.0 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking ascii v0.9.1 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking normalize-line-endings v0.2.2 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking shell-words v0.1.0 [INFO] [stderr] Checking roff v0.1.0 [INFO] [stderr] Checking open v1.2.2 [INFO] [stderr] Compiling rand v0.6.4 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking colored v1.7.0 [INFO] [stderr] Compiling onig_sys v69.1.0 [INFO] [stderr] Compiling ansi_colours v1.0.1 [INFO] [stderr] Checking xml-rs v0.7.0 [INFO] [stderr] Checking yaml-rust v0.4.2 [INFO] [stderr] Checking smallvec v0.6.8 [INFO] [stderr] Checking man v0.3.0 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking rand_chacha v0.1.1 [INFO] [stderr] Checking float-cmp v0.4.0 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Checking rand_os v0.1.1 [INFO] [stderr] Checking backtrace-sys v0.1.28 [INFO] [stderr] Checking miniz-sys v0.1.11 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking clicolors-control v0.2.0 [INFO] [stderr] Checking directories v1.0.2 [INFO] [stderr] Checking flate2 v1.0.6 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking combine v3.6.6 [INFO] [stderr] Checking content_inspector v0.2.4 [INFO] [stderr] Checking error-chain v0.12.0 [INFO] [stderr] Checking regex v1.1.0 [INFO] [stderr] Checking parking_lot_core v0.4.0 [INFO] [stderr] Checking tempfile v3.0.5 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking onig v4.3.1 [INFO] [stderr] Checking globset v0.4.2 [INFO] [stderr] Checking console v0.6.2 [INFO] [stderr] Checking predicates v1.0.0 [INFO] [stderr] Checking ignore v0.4.6 [INFO] [stderr] Checking globwalk v0.5.0 [INFO] [stderr] Checking assert_fs v0.11.3 [INFO] [stderr] Compiling darling_core v0.8.3 [INFO] [stderr] Checking serde_json v1.0.37 [INFO] [stderr] Checking bincode v1.0.1 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Compiling serde_derive v1.0.85 [INFO] [stderr] Compiling darling_macro v0.8.3 [INFO] [stderr] Compiling darling v0.8.3 [INFO] [stderr] Compiling derive_builder_core v0.4.0 [INFO] [stderr] Checking toml_edit v0.1.3 [INFO] [stderr] Checking syntect v3.0.2 [INFO] [stderr] warning[E0502]: cannot borrow `v` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/toml_edit-0.1.3/src/index.rs:55:65 [INFO] [stderr] | [INFO] [stderr] 44 | fn index_or_insert<'v>(&self, v: &'v mut Item) -> &'v mut Item { [INFO] [stderr] | -- lifetime `'v` defined here [INFO] [stderr] 45 | / match *v { [INFO] [stderr] 46 | | Item::ArrayOfTables(ref mut vec) => { [INFO] [stderr] 47 | | vec.values.get_mut(*self).expect("index out of bounds") [INFO] [stderr] 48 | | } [INFO] [stderr] 49 | | Item::Value(ref mut a) if a.is_array() => a [INFO] [stderr] | | --------- mutable borrow occurs here [INFO] [stderr] ... | [INFO] [stderr] 55 | | _ => panic!("cannot access index {} in {:?}", self, v), [INFO] [stderr] | | ^ immutable borrow occurs here [INFO] [stderr] 56 | | } [INFO] [stderr] | |_________- returning this value requires that `v.0` is borrowed for `'v` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `v` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/toml_edit-0.1.3/src/index.rs:88:63 [INFO] [stderr] | [INFO] [stderr] 70 | fn index_or_insert<'v>(&self, v: &'v mut Item) -> &'v mut Item { [INFO] [stderr] | -- lifetime `'v` defined here [INFO] [stderr] ... [INFO] [stderr] 77 | / match *v { [INFO] [stderr] 78 | | Item::Table(ref mut t) => t.entry(self).or_insert(Item::None), [INFO] [stderr] 79 | | Item::Value(ref mut v) if v.is_inline_table() => { [INFO] [stderr] | | --------- mutable borrow occurs here [INFO] [stderr] 80 | | &mut v [INFO] [stderr] ... | [INFO] [stderr] 88 | | _ => panic!("cannot access key {} in {:?}", self, v), [INFO] [stderr] | | ^ immutable borrow occurs here [INFO] [stderr] 89 | | } [INFO] [stderr] | |_________- returning this value requires that `v.0` is borrowed for `'v` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Checking prettyprint v0.4.1 [INFO] [stderr] Checking mn v0.2.1 (/opt/crater/workdir) [INFO] [stderr] warning: the item `default_toml_config` is imported redundantly [INFO] [stderr] --> src/state/mod.rs:64:13 [INFO] [stderr] | [INFO] [stderr] 1 | mod default_toml_config; [INFO] [stderr] | ------------------------ the item `default_toml_config` is already defined here [INFO] [stderr] ... [INFO] [stderr] 64 | use default_toml_config; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `fs` is imported redundantly [INFO] [stderr] --> src/state/mod.rs:66:19 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{fs, io::prelude::*}; [INFO] [stderr] | -- the item `fs` is already imported here [INFO] [stderr] ... [INFO] [stderr] 66 | use std::{fs, io::Read}; [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: the item `Read` is imported redundantly [INFO] [stderr] --> src/state/mod.rs:66:23 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{fs, io::prelude::*}; [INFO] [stderr] | -------------- the item `Read` is already imported here [INFO] [stderr] ... [INFO] [stderr] 66 | use std::{fs, io::Read}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `default_toml_config` is imported redundantly [INFO] [stderr] --> src/state/mod.rs:64:13 [INFO] [stderr] | [INFO] [stderr] 1 | mod default_toml_config; [INFO] [stderr] | ------------------------ the item `default_toml_config` is already defined here [INFO] [stderr] ... [INFO] [stderr] 64 | use default_toml_config; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `fs` is imported redundantly [INFO] [stderr] --> src/state/mod.rs:66:19 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{fs, io::prelude::*}; [INFO] [stderr] | -- the item `fs` is already imported here [INFO] [stderr] ... [INFO] [stderr] 66 | use std::{fs, io::Read}; [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: the item `Read` is imported redundantly [INFO] [stderr] --> src/state/mod.rs:66:23 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{fs, io::prelude::*}; [INFO] [stderr] | -------------- the item `Read` is already imported here [INFO] [stderr] ... [INFO] [stderr] 66 | use std::{fs, io::Read}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `editor` [INFO] [stderr] --> src/state/mod.rs:271:5 [INFO] [stderr] | [INFO] [stderr] 271 | pub fn editor(&self) -> &String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 01s [INFO] running `"docker" "inspect" "bea2a437974f3422e9f431653ffe3fb668fa28f15370edf2662005cfc306a208"` [INFO] running `"docker" "rm" "-f" "bea2a437974f3422e9f431653ffe3fb668fa28f15370edf2662005cfc306a208"` [INFO] [stdout] bea2a437974f3422e9f431653ffe3fb668fa28f15370edf2662005cfc306a208