[INFO] cloning repository https://github.com/luojia65/sysevr-diff [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luojia65/sysevr-diff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsysevr-diff", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsysevr-diff'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6c222fb345a3f925df223d19e47187556caf6d72 [INFO] building luojia65/sysevr-diff against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsysevr-diff" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/luojia65/sysevr-diff on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/luojia65/sysevr-diff [INFO] finished tweaking git repo https://github.com/luojia65/sysevr-diff [INFO] tweaked toml for git repo https://github.com/luojia65/sysevr-diff written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/luojia65/sysevr-diff 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--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-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 89d877feb857b5724edd74c6bec36869c0966f3071d4c5e14a6980b784cfb7ee [INFO] running `Command { std: "docker" "start" "-a" "89d877feb857b5724edd74c6bec36869c0966f3071d4c5e14a6980b784cfb7ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "89d877feb857b5724edd74c6bec36869c0966f3071d4c5e14a6980b784cfb7ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89d877feb857b5724edd74c6bec36869c0966f3071d4c5e14a6980b784cfb7ee", kill_on_drop: false }` [INFO] [stdout] 89d877feb857b5724edd74c6bec36869c0966f3071d4c5e14a6980b784cfb7ee [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 15f6bf09f384f29f0c0bac21427420643e0f5bb50e2ce8106757498a66eb87a5 [INFO] running `Command { std: "docker" "start" "-a" "15f6bf09f384f29f0c0bac21427420643e0f5bb50e2ce8106757498a66eb87a5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.33.1 [INFO] [stderr] Compiling sysevr-diff v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cv.rs:167:9 [INFO] [stdout] | [INFO] [stdout] 167 | let mut ret = Vec::new(); [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: unused variable: `ctx` [INFO] [stdout] --> src/cv.rs:232:26 [INFO] [stdout] | [INFO] [stdout] 232 | pub fn gen_modify_if<'a>(ctx: &'a ModifyIf) -> Vec> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [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/cv.rs:233:9 [INFO] [stdout] | [INFO] [stdout] 233 | let mut ret = Vec::new(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `line_end` is never read [INFO] [stdout] --> src/format.rs:78:17 [INFO] [stdout] | [INFO] [stdout] 78 | let mut line_end = line_start; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nxt_line` [INFO] [stdout] --> src/format.rs:80:13 [INFO] [stdout] | [INFO] [stdout] 80 | let nxt_line = &input[line_start..next_line(input, line_start)]; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nxt_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `skip` is never read [INFO] [stdout] --> src/format.rs:274:17 [INFO] [stdout] | [INFO] [stdout] 274 | let mut skip = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:57:21 [INFO] [stdout] | [INFO] [stdout] 57 | for i in format::modify_value_assign(a) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_lines` is never used [INFO] [stdout] --> src/format.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn add_lines(input: &str) -> impl Iterator { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `idx` is never read [INFO] [stdout] --> src/format.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct AddIfReturn<'a> { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 25 | pub idx: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `AddIfReturn` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `line_number` is never used [INFO] [stdout] --> src/format.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl AddIfReturn<'_> { [INFO] [stdout] | -------------------- method in this implementation [INFO] [stdout] 29 | pub fn line_number(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `mark` and `block` are never read [INFO] [stdout] --> src/format.rs:130:9 [INFO] [stdout] | [INFO] [stdout] 129 | pub struct ModifyWhileFor<'a> { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 130 | pub mark: &'a str, // "for" or "while" [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 133 | pub block: &'a str, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ModifyWhileFor` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `cond_sub`, `cond_add`, and `block` are never read [INFO] [stdout] --> src/format.rs:226:9 [INFO] [stdout] | [INFO] [stdout] 225 | pub struct ModifyIf { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 226 | pub cond_sub: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 227 | pub cond_add: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 228 | pub block: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ModifyIf` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `sub_left`, `sub_right`, `add_left`, and `add_right` are never read [INFO] [stdout] --> src/format.rs:346:9 [INFO] [stdout] | [INFO] [stdout] 345 | pub struct ModifyValueAssign<'a> { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 346 | pub sub_left: &'a str, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 347 | pub sub_right: &'a str, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 348 | pub add_left: &'a str, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 349 | pub add_right: &'a str, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ModifyValueAssign` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.89s [INFO] running `Command { std: "docker" "inspect" "15f6bf09f384f29f0c0bac21427420643e0f5bb50e2ce8106757498a66eb87a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15f6bf09f384f29f0c0bac21427420643e0f5bb50e2ce8106757498a66eb87a5", kill_on_drop: false }` [INFO] [stdout] 15f6bf09f384f29f0c0bac21427420643e0f5bb50e2ce8106757498a66eb87a5 [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 985fbca2bdf84dcfb828c89d010fabae41b33f4d8246d1b9ead61b04b81bc896 [INFO] running `Command { std: "docker" "start" "-a" "985fbca2bdf84dcfb828c89d010fabae41b33f4d8246d1b9ead61b04b81bc896", kill_on_drop: false }` [INFO] [stderr] Compiling sysevr-diff v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cv.rs:167:9 [INFO] [stdout] | [INFO] [stdout] 167 | let mut ret = Vec::new(); [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: unused variable: `ctx` [INFO] [stdout] --> src/cv.rs:232:26 [INFO] [stdout] | [INFO] [stdout] 232 | pub fn gen_modify_if<'a>(ctx: &'a ModifyIf) -> Vec> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [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/cv.rs:233:9 [INFO] [stdout] | [INFO] [stdout] 233 | let mut ret = Vec::new(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `line_end` is never read [INFO] [stdout] --> src/format.rs:78:17 [INFO] [stdout] | [INFO] [stdout] 78 | let mut line_end = line_start; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nxt_line` [INFO] [stdout] --> src/format.rs:80:13 [INFO] [stdout] | [INFO] [stdout] 80 | let nxt_line = &input[line_start..next_line(input, line_start)]; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nxt_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `skip` is never read [INFO] [stdout] --> src/format.rs:274:17 [INFO] [stdout] | [INFO] [stdout] 274 | let mut skip = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:57:21 [INFO] [stdout] | [INFO] [stdout] 57 | for i in format::modify_value_assign(a) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_lines` is never used [INFO] [stdout] --> src/format.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn add_lines(input: &str) -> impl Iterator { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `idx` is never read [INFO] [stdout] --> src/format.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct AddIfReturn<'a> { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 25 | pub idx: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `AddIfReturn` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `line_number` is never used [INFO] [stdout] --> src/format.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl AddIfReturn<'_> { [INFO] [stdout] | -------------------- method in this implementation [INFO] [stdout] 29 | pub fn line_number(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `mark` and `block` are never read [INFO] [stdout] --> src/format.rs:130:9 [INFO] [stdout] | [INFO] [stdout] 129 | pub struct ModifyWhileFor<'a> { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 130 | pub mark: &'a str, // "for" or "while" [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 133 | pub block: &'a str, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ModifyWhileFor` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `cond_sub`, `cond_add`, and `block` are never read [INFO] [stdout] --> src/format.rs:226:9 [INFO] [stdout] | [INFO] [stdout] 225 | pub struct ModifyIf { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 226 | pub cond_sub: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 227 | pub cond_add: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 228 | pub block: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ModifyIf` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `sub_left`, `sub_right`, `add_left`, and `add_right` are never read [INFO] [stdout] --> src/format.rs:346:9 [INFO] [stdout] | [INFO] [stdout] 345 | pub struct ModifyValueAssign<'a> { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 346 | pub sub_left: &'a str, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 347 | pub sub_right: &'a str, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 348 | pub add_left: &'a str, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 349 | pub add_right: &'a str, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ModifyValueAssign` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s [INFO] running `Command { std: "docker" "inspect" "985fbca2bdf84dcfb828c89d010fabae41b33f4d8246d1b9ead61b04b81bc896", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "985fbca2bdf84dcfb828c89d010fabae41b33f4d8246d1b9ead61b04b81bc896", kill_on_drop: false }` [INFO] [stdout] 985fbca2bdf84dcfb828c89d010fabae41b33f4d8246d1b9ead61b04b81bc896