[INFO] fetching crate rusty-x 0.1.75...
[INFO] checking rusty-x-0.1.75 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] extracting crate rusty-x 0.1.75 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rusty-x 0.1.75 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusty-x 0.1.75
[INFO] finished tweaking crates.io crate rusty-x 0.1.75
[INFO] tweaked toml for crates.io crate rusty-x 0.1.75 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ab7936e6c59798c2068c6755c4ef6a7b31017a779ca65aa413f8185c4fdea22
[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" "7ab7936e6c59798c2068c6755c4ef6a7b31017a779ca65aa413f8185c4fdea22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ab7936e6c59798c2068c6755c4ef6a7b31017a779ca65aa413f8185c4fdea22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ab7936e6c59798c2068c6755c4ef6a7b31017a779ca65aa413f8185c4fdea22", kill_on_drop: false }`
[INFO] [stdout] 7ab7936e6c59798c2068c6755c4ef6a7b31017a779ca65aa413f8185c4fdea22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 02ed36896571c35777c7d9913e95e60784652db2b71dcb414a36cde26b77661f
[INFO] running `Command { std: "docker" "start" "-a" "02ed36896571c35777c7d9913e95e60784652db2b71dcb414a36cde26b77661f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.77
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[INFO] [stderr]    Compiling serde_derive v1.0.116
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[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]    Compiling darling v0.9.0
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[INFO] [stderr]    Compiling onig_sys v69.5.1
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[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_json v1.0.57
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[INFO] [stderr]     Checking toml v0.4.10
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[INFO] [stderr]     Checking git2 v0.7.5
[INFO] [stderr]     Checking prettyprint v0.3.0
[INFO] [stderr]     Checking rusty-x v0.1.75 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:27:42
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Error::FileError(ref e) => e.description(),
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/x.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 |         .map(|(count, entry, tags)| {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/x.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut entries: Vec<fs::DirEntry> = fs::read_dir(&snippet_location.local)?
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:27:42
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Error::FileError(ref e) => e.description(),
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/x.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 |         .map(|(count, entry, tags)| {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/x.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut entries: Vec<fs::DirEntry> = fs::read_dir(&snippet_location.local)?
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             (OpCode::AddSnippet(args.flag_add, &project.locations[choice[0]]))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |             (OpCode::NewSnippet(&project.locations[choice[0]]))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         (OpCode::ListSnippets(true))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         (OpCode::PullSnippets)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         (OpCode::SaveSnippets)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         (OpCode::ListSnippets(false))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 | /                     (s + ", "
[INFO] [stdout] 184 | |                         + &format!("{}", ansi_term::Style::new().bold().paint(val.trim()))
[INFO] [stdout] 185 | |                             .to_owned())
[INFO] [stdout]     | |________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     s + ", "
[INFO] [stdout] 184 |                         + &format!("{}", ansi_term::Style::new().bold().paint(val.trim()))
[INFO] [stdout] 185 |                             .to_owned()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             (OpCode::AddSnippet(args.flag_add, &project.locations[choice[0]]))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |             (OpCode::NewSnippet(&project.locations[choice[0]]))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         (OpCode::ListSnippets(true))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         (OpCode::PullSnippets)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         (OpCode::SaveSnippets)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         (OpCode::ListSnippets(false))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bin/main.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 | /                     (s + ", "
[INFO] [stdout] 184 | |                         + &format!("{}", ansi_term::Style::new().bold().paint(val.trim()))
[INFO] [stdout] 185 | |                             .to_owned())
[INFO] [stdout]     | |________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     s + ", "
[INFO] [stdout] 184 |                         + &format!("{}", ansi_term::Style::new().bold().paint(val.trim()))
[INFO] [stdout] 185 |                             .to_owned()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 21s
[INFO] running `Command { std: "docker" "inspect" "02ed36896571c35777c7d9913e95e60784652db2b71dcb414a36cde26b77661f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ed36896571c35777c7d9913e95e60784652db2b71dcb414a36cde26b77661f", kill_on_drop: false }`
[INFO] [stdout] 02ed36896571c35777c7d9913e95e60784652db2b71dcb414a36cde26b77661f
