[INFO] cloning repository https://github.com/SolarLiner/mfc-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SolarLiner/mfc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Fmfc-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Fmfc-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b881c1af2661bc9e7b166f0e719bafa90c9076fb [INFO] checking SolarLiner/mfc-rs against try#fceb2de603f0807f9049222f3f612ed51ed8f9dc for pr-157576 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Fmfc-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/SolarLiner/mfc-rs [INFO] finished tweaking git repo https://github.com/SolarLiner/mfc-rs [INFO] tweaked toml for git repo https://github.com/SolarLiner/mfc-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/SolarLiner/mfc-rs on toolchain fceb2de603f0807f9049222f3f612ed51ed8f9dc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fceb2de603f0807f9049222f3f612ed51ed8f9dc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/SolarLiner/mfc-rs 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" "+fceb2de603f0807f9049222f3f612ed51ed8f9dc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] 0bd2b6b0c6b4ef648a4178183cf82170ba21ae5d85e24d06a6cd4fb46368f37a [INFO] running `Command { std: "docker" "start" "0bd2b6b0c6b4ef648a4178183cf82170ba21ae5d85e24d06a6cd4fb46368f37a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0bd2b6b0c6b4ef648a4178183cf82170ba21ae5d85e24d06a6cd4fb46368f37a" "/opt/rustwide/cargo-home/bin/cargo" "+fceb2de603f0807f9049222f3f612ed51ed8f9dc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0bd2b6b0c6b4ef648a4178183cf82170ba21ae5d85e24d06a6cd4fb46368f37a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0bd2b6b0c6b4ef648a4178183cf82170ba21ae5d85e24d06a6cd4fb46368f37a" "/opt/rustwide/cargo-home/bin/cargo" "+fceb2de603f0807f9049222f3f612ed51ed8f9dc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling syn v1.0.14 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling ucd-trie v0.1.2 [INFO] [stderr] Checking smallvec v0.6.13 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking smallvec v1.2.0 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Checking phf_shared v0.7.24 [INFO] [stderr] Checking smallstr v0.1.0 [INFO] [stderr] Checking unicode-normalization v0.1.12 [INFO] [stderr] Compiling anyhow v1.0.26 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Checking nom v4.2.3 [INFO] [stderr] Compiling pest v2.1.2 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Checking nix v0.14.1 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling backtrace v0.3.44 [INFO] [stderr] Checking from-pest v0.3.1 [INFO] [stderr] Compiling pest_meta v2.1.2 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling terminfo v0.6.1 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling pest_generator v2.1.1 [INFO] [stderr] Compiling failure v0.1.6 [INFO] [stderr] Compiling single v1.0.0 [INFO] [stderr] Compiling pest-ast v0.3.3 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Checking mortal v0.2.1 [INFO] [stderr] Checking linefeed v0.6.0 [INFO] [stderr] Checking mfc-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `CAst::*` [INFO] [stdout] --> src/parse.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | use CAst::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `CAst::*` [INFO] [stdout] --> src/parse.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | use CAst::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/env.rs:44:13 [INFO] [stdout] | [INFO] [stdout] 44 | let mut frame = self.top_frame_or_new(); [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/env.rs:44:13 [INFO] [stdout] | [INFO] [stdout] 44 | let mut frame = self.top_frame_or_new(); [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: variant `Neg` is never constructed [INFO] [stdout] --> src/ast.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 29 | pub enum Unop { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] 30 | Neg, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Unop` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `EUnop` is never constructed [INFO] [stdout] --> src/ast.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 39 | pub enum EAst { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 43 | EUnop(Unop, BEAst), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EAst` 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: methods `lookup_full` and `pop_frame` are never used [INFO] [stdout] --> src/env.rs:63:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl Env { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 63 | pub fn lookup_full(&self, x: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | pub fn pop_frame(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_complete` is never used [INFO] [stdout] --> src/parse.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn is_complete(input: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `QUnop`, `QSet`, `QLd`, and `QPop` are never constructed [INFO] [stdout] --> src/quads.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub enum Quad { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 13 | QUnop(Unop, String, String), [INFO] [stdout] | ^^^^^ [INFO] [stdout] 14 | QSet(String, String), [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | QLd(String, String), [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | QPop(String), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Quad` 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/parse.rs:46:25 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn parse_raw(input: &str) -> Result, Error> { [INFO] [stdout] | ^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 46 | pub fn parse_raw(input: &str) -> Result, Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.48s [INFO] [stdout] warning: variant `Neg` is never constructed [INFO] [stdout] --> src/ast.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 29 | pub enum Unop { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] 30 | Neg, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Unop` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `EUnop` is never constructed [INFO] [stdout] --> src/ast.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 39 | pub enum EAst { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 43 | EUnop(Unop, BEAst), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EAst` 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: methods `lookup_full` and `pop_frame` are never used [INFO] [stdout] --> src/env.rs:63:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl Env { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 63 | pub fn lookup_full(&self, x: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | pub fn pop_frame(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_complete` is never used [INFO] [stdout] --> src/parse.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn is_complete(input: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `QUnop`, `QSet`, `QLd`, and `QPop` are never constructed [INFO] [stdout] --> src/quads.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub enum Quad { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 13 | QUnop(Unop, String, String), [INFO] [stdout] | ^^^^^ [INFO] [stdout] 14 | QSet(String, String), [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | QLd(String, String), [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | QPop(String), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, terminfo v0.6.1 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/parse.rs:46:25 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn parse_raw(input: &str) -> Result, Error> { [INFO] [stdout] | ^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 46 | pub fn parse_raw(input: &str) -> Result, Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "0bd2b6b0c6b4ef648a4178183cf82170ba21ae5d85e24d06a6cd4fb46368f37a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0bd2b6b0c6b4ef648a4178183cf82170ba21ae5d85e24d06a6cd4fb46368f37a", kill_on_drop: false }` [INFO] [stdout] 0bd2b6b0c6b4ef648a4178183cf82170ba21ae5d85e24d06a6cd4fb46368f37a