[INFO] crate mech 0.0.3 is already in cache [INFO] checking mech-0.0.3 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1 [INFO] extracting crate mech 0.0.3 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate mech 0.0.3 on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate mech 0.0.3 [INFO] finished tweaking crates.io crate mech 0.0.3 [INFO] tweaked toml for crates.io crate mech 0.0.3 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate mech 0.0.3 already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 05059066ec3941141e3c9977e2e00a0691dcaaf33dc1789e12248ee682808c1a [INFO] running `"docker" "start" "-a" "05059066ec3941141e3c9977e2e00a0691dcaaf33dc1789e12248ee682808c1a"` [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Checking sequence_trie v0.3.6 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling hashbrown v0.6.2 [INFO] [stderr] Checking term-painter v0.2.4 [INFO] [stderr] Checking num-complex v0.2.3 [INFO] [stderr] Checking num-rational v0.2.2 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling serde_derive v1.0.102 [INFO] [stderr] Checking hyper v0.10.16 [INFO] [stderr] Checking ws v0.7.9 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Compiling c2-chacha v0.2.3 [INFO] [stderr] Compiling mime_guess v1.8.7 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.2 [INFO] [stderr] Compiling const-random-macro v0.1.6 [INFO] [stderr] Checking iron v0.6.1 [INFO] [stderr] Checking const-random v0.1.6 [INFO] [stderr] Checking ahash v0.2.17 [INFO] [stderr] Checking mount v0.4.0 [INFO] [stderr] Checking staticfile v0.5.0 [INFO] [stderr] Checking mech-core v0.0.3 [INFO] [stderr] Checking bincode v0.8.0 [INFO] [stderr] Checking serde_json v1.0.41 [INFO] [stderr] Checking mech-syntax v0.0.3 [INFO] [stderr] Checking mech-utilities v0.0.3 [INFO] [stderr] Checking mech-program v0.0.3 [INFO] [stderr] Checking mech-server v0.0.3 [INFO] [stderr] Checking mech v0.0.3 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused imports: `PathBuf`, `Path` [INFO] [stderr] --> src/bin/mech.rs:11:17 [INFO] [stderr] | [INFO] [stderr] 11 | use std::path::{Path, PathBuf}; [INFO] [stderr] | ^^^^ ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Sender`, `self` [INFO] [stderr] --> src/bin/mech.rs:12:23 [INFO] [stderr] | [INFO] [stderr] 12 | use std::sync::mpsc::{self, Sender}; [INFO] [stderr] | ^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `ArgMatches` [INFO] [stderr] --> src/bin/mech.rs:18:22 [INFO] [stderr] | [INFO] [stderr] 18 | use clap::{Arg, App, ArgMatches, SubCommand}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `ProgramRunner`, `RunLoop` [INFO] [stderr] --> src/bin/mech.rs:25:50 [INFO] [stderr] | [INFO] [stderr] 25 | use mech::{Core, Compiler, Table, Value, Hasher, ProgramRunner, RunLoop, RunLoopMessage, ClientMessage, Parser}; [INFO] [stderr] | ^^^^^^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `nom::digit1 as nom_digit1` [INFO] [stderr] --> src/bin/mech.rs:32:5 [INFO] [stderr] | [INFO] [stderr] 32 | use nom::digit1 as nom_digit1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:262:9 [INFO] [stderr] | [INFO] [stderr] 262 | (Ok(ClientMessage::Table(table))) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:268:9 [INFO] [stderr] | [INFO] [stderr] 268 | (Ok(ClientMessage::Pause)) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:271:9 [INFO] [stderr] | [INFO] [stderr] 271 | (Ok(ClientMessage::Resume)) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:274:9 [INFO] [stderr] | [INFO] [stderr] 274 | (Ok(ClientMessage::Clear)) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:277:9 [INFO] [stderr] | [INFO] [stderr] 277 | (Ok(ClientMessage::NewBlocks(count))) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused imports: `PathBuf`, `Path` [INFO] [stderr] --> src/bin/mech.rs:11:17 [INFO] [stderr] | [INFO] [stderr] 11 | use std::path::{Path, PathBuf}; [INFO] [stderr] | ^^^^ ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Sender`, `self` [INFO] [stderr] --> src/bin/mech.rs:12:23 [INFO] [stderr] | [INFO] [stderr] 12 | use std::sync::mpsc::{self, Sender}; [INFO] [stderr] | ^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `ArgMatches` [INFO] [stderr] --> src/bin/mech.rs:18:22 [INFO] [stderr] | [INFO] [stderr] 18 | use clap::{Arg, App, ArgMatches, SubCommand}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `ProgramRunner`, `RunLoop` [INFO] [stderr] --> src/bin/mech.rs:25:50 [INFO] [stderr] | [INFO] [stderr] 25 | use mech::{Core, Compiler, Table, Value, Hasher, ProgramRunner, RunLoop, RunLoopMessage, ClientMessage, Parser}; [INFO] [stderr] | ^^^^^^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `nom::digit1 as nom_digit1` [INFO] [stderr] --> src/bin/mech.rs:32:5 [INFO] [stderr] | [INFO] [stderr] 32 | use nom::digit1 as nom_digit1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:262:9 [INFO] [stderr] | [INFO] [stderr] 262 | (Ok(ClientMessage::Table(table))) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:268:9 [INFO] [stderr] | [INFO] [stderr] 268 | (Ok(ClientMessage::Pause)) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:271:9 [INFO] [stderr] | [INFO] [stderr] 271 | (Ok(ClientMessage::Resume)) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:274:9 [INFO] [stderr] | [INFO] [stderr] 274 | (Ok(ClientMessage::Clear)) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused import: `nom::AtEof` [INFO] [stderr] --> src/bin/mech.rs:33:5 [INFO] [stderr] | [INFO] [stderr] 33 | use nom::AtEof as eof; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around pattern [INFO] [stderr] --> src/bin/mech.rs:277:9 [INFO] [stderr] | [INFO] [stderr] 277 | (Ok(ClientMessage::NewBlocks(count))) => { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/bin/mech.rs:236:9 [INFO] [stderr] | [INFO] [stderr] 236 | err => { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `nom::AtEof` [INFO] [stderr] --> src/bin/mech.rs:33:5 [INFO] [stderr] | [INFO] [stderr] 33 | use nom::AtEof as eof; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/bin/mech.rs:236:9 [INFO] [stderr] | [INFO] [stderr] 236 | err => { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:131:17 [INFO] [stderr] | [INFO] [stderr] 131 | f.read_to_string(&mut buffer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:214:15 [INFO] [stderr] | [INFO] [stderr] 214 | mech_client.running.send(RunLoopMessage::Table(id)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:217:15 [INFO] [stderr] | [INFO] [stderr] 217 | mech_client.running.send(RunLoopMessage::Clear); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:220:15 [INFO] [stderr] | [INFO] [stderr] 220 | mech_client.running.send(RunLoopMessage::PrintCore); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:223:15 [INFO] [stderr] | [INFO] [stderr] 223 | mech_client.running.send(RunLoopMessage::PrintRuntime); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:225:36 [INFO] [stderr] | [INFO] [stderr] 225 | ReplCommand::Pause => {mech_client.running.send(RunLoopMessage::Pause);}, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:226:37 [INFO] [stderr] | [INFO] [stderr] 226 | ReplCommand::Resume => {mech_client.running.send(RunLoopMessage::Resume);}, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:244:13 [INFO] [stderr] | [INFO] [stderr] 244 | mech_client.running.send(RunLoopMessage::Code(input.trim().to_string())); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:251:15 [INFO] [stderr] | [INFO] [stderr] 251 | mech_client.running.send(RunLoopMessage::Code(command)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:131:17 [INFO] [stderr] | [INFO] [stderr] 131 | f.read_to_string(&mut buffer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:214:15 [INFO] [stderr] | [INFO] [stderr] 214 | mech_client.running.send(RunLoopMessage::Table(id)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:217:15 [INFO] [stderr] | [INFO] [stderr] 217 | mech_client.running.send(RunLoopMessage::Clear); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:220:15 [INFO] [stderr] | [INFO] [stderr] 220 | mech_client.running.send(RunLoopMessage::PrintCore); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:223:15 [INFO] [stderr] | [INFO] [stderr] 223 | mech_client.running.send(RunLoopMessage::PrintRuntime); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:225:36 [INFO] [stderr] | [INFO] [stderr] 225 | ReplCommand::Pause => {mech_client.running.send(RunLoopMessage::Pause);}, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:226:37 [INFO] [stderr] | [INFO] [stderr] 226 | ReplCommand::Resume => {mech_client.running.send(RunLoopMessage::Resume);}, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:244:13 [INFO] [stderr] | [INFO] [stderr] 244 | mech_client.running.send(RunLoopMessage::Code(input.trim().to_string())); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/mech.rs:251:15 [INFO] [stderr] | [INFO] [stderr] 251 | mech_client.running.send(RunLoopMessage::Code(command)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 52.29s [INFO] running `"docker" "inspect" "05059066ec3941141e3c9977e2e00a0691dcaaf33dc1789e12248ee682808c1a"` [INFO] running `"docker" "rm" "-f" "05059066ec3941141e3c9977e2e00a0691dcaaf33dc1789e12248ee682808c1a"` [INFO] [stdout] 05059066ec3941141e3c9977e2e00a0691dcaaf33dc1789e12248ee682808c1a