[INFO] cloning repository https://github.com/vakabus/rumipsem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vakabus/rumipsem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvakabus%2Frumipsem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvakabus%2Frumipsem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5eb40604e61a63db9ae12679df0a39052f3d65c2
[INFO] checking vakabus/rumipsem against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvakabus%2Frumipsem" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vakabus/rumipsem on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vakabus/rumipsem
[INFO] finished tweaking git repo https://github.com/vakabus/rumipsem
[INFO] tweaked toml for git repo https://github.com/vakabus/rumipsem written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vakabus/rumipsem 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chrono v0.4.3
[INFO] [stderr]   Downloaded goblin v0.0.11
[INFO] [stderr]   Downloaded scroll_derive v0.7.0
[INFO] [stderr]   Downloaded scroll v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fd83763252d58b103bcc6883bc8e8d6b0f253a31551d56b5907458cd1eb66f8
[INFO] running `Command { std: "docker" "start" "-a" "4fd83763252d58b103bcc6883bc8e8d6b0f253a31551d56b5907458cd1eb66f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fd83763252d58b103bcc6883bc8e8d6b0f253a31551d56b5907458cd1eb66f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd83763252d58b103bcc6883bc8e8d6b0f253a31551d56b5907458cd1eb66f8", kill_on_drop: false }`
[INFO] [stdout] 4fd83763252d58b103bcc6883bc8e8d6b0f253a31551d56b5907458cd1eb66f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cfff9ac7af1e4e012917d0625339aaff73c8bfacd93009918e6cf02c22334c3
[INFO] running `Command { std: "docker" "start" "-a" "2cfff9ac7af1e4e012917d0625339aaff73c8bfacd93009918e6cf02c22334c3", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking scroll v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking chrono v0.4.3
[INFO] [stderr]    Compiling scroll_derive v0.7.0
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking simplelog v0.5.2
[INFO] [stderr]     Checking goblin v0.0.11
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking serde_json v1.0.19
[INFO] [stderr]     Checking rumipsem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu/instructions.rs:490:17
[INFO] [stdout]     |
[INFO] [stdout] 490 |             let mut link;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu/instructions.rs:491:17
[INFO] [stdout]     |
[INFO] [stdout] 491 |             let mut inst;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu/instructions.rs:490:17
[INFO] [stdout]     |
[INFO] [stdout] 490 |             let mut link;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu/instructions.rs:491:17
[INFO] [stdout]     |
[INFO] [stdout] 491 |             let mut inst;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:329:25
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let mut oldsigaction = self.sigactions.insert(
[INFO] [stdout]     |                         ----^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:657:25
[INFO] [stdout]     |
[INFO] [stdout] 657 |                     let mut iovec = translate_iovec_libc(arg2, arg3, memory);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:678:25
[INFO] [stdout]     |
[INFO] [stdout] 678 |                     let mut iovec = translate_iovec(arg2, arg3, memory);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:691:33
[INFO] [stdout]     |
[INFO] [stdout] 691 | ...                   let mut already_written = 0;
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:737:25
[INFO] [stdout]     |
[INFO] [stdout] 737 |                     let mut result = unsafe { ::libc::lseek(fd as i32, offset, whence as i32) };
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:884:17
[INFO] [stdout]     |
[INFO] [stdout] 884 |             let mut flags = translate_signal_flags(sigact.sa_flags);
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `FlowChangeImmediate` is never constructed
[INFO] [stdout]   --> src/cpu/event.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub enum CPUEvent {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 10 |     FlowChangeImmediate(u32), // this is here to support compact branch
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RETURN_ADDRESS` is never used
[INFO] [stdout]   --> src/cpu/registers.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const RETURN_ADDRESS: u32 = 31;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_instruction_number` and `disable_trace_checking` are never used
[INFO] [stdout]    --> src/cpu/watchdog.rs:43:12
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Watchdog {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43  |     pub fn get_instruction_number(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn disable_trace_checking(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/cpu/instructions_constants.rs:114:37
[INFO] [stdout]     |
[INFO] [stdout] 114 |         _ => panic!("Unknown opcode {:06b}."),
[INFO] [stdout]     |                                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 114 |         _ => panic!("Unknown opcode {:06b}.", ...),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 114 |         _ => panic!("{}", "Unknown opcode {:06b}."),
[INFO] [stdout]     |                     +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:329:25
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let mut oldsigaction = self.sigactions.insert(
[INFO] [stdout]     |                         ----^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:657:25
[INFO] [stdout]     |
[INFO] [stdout] 657 |                     let mut iovec = translate_iovec_libc(arg2, arg3, memory);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:678:25
[INFO] [stdout]     |
[INFO] [stdout] 678 |                     let mut iovec = translate_iovec(arg2, arg3, memory);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:691:33
[INFO] [stdout]     |
[INFO] [stdout] 691 | ...                   let mut already_written = 0;
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:737:25
[INFO] [stdout]     |
[INFO] [stdout] 737 |                     let mut result = unsafe { ::libc::lseek(fd as i32, offset, whence as i32) };
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syscalls.rs:884:17
[INFO] [stdout]     |
[INFO] [stdout] 884 |             let mut flags = translate_signal_flags(sigact.sa_flags);
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `FlowChangeImmediate` is never constructed
[INFO] [stdout]   --> src/cpu/event.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub enum CPUEvent {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 10 |     FlowChangeImmediate(u32), // this is here to support compact branch
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RETURN_ADDRESS` is never used
[INFO] [stdout]   --> src/cpu/registers.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const RETURN_ADDRESS: u32 = 31;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_instruction_number` and `disable_trace_checking` are never used
[INFO] [stdout]    --> src/cpu/watchdog.rs:43:12
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Watchdog {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43  |     pub fn get_instruction_number(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn disable_trace_checking(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/cpu/instructions_constants.rs:114:37
[INFO] [stdout]     |
[INFO] [stdout] 114 |         _ => panic!("Unknown opcode {:06b}."),
[INFO] [stdout]     |                                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 114 |         _ => panic!("Unknown opcode {:06b}.", ...),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 114 |         _ => panic!("{}", "Unknown opcode {:06b}."),
[INFO] [stdout]     |                     +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.82s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2cfff9ac7af1e4e012917d0625339aaff73c8bfacd93009918e6cf02c22334c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cfff9ac7af1e4e012917d0625339aaff73c8bfacd93009918e6cf02c22334c3", kill_on_drop: false }`
[INFO] [stdout] 2cfff9ac7af1e4e012917d0625339aaff73c8bfacd93009918e6cf02c22334c3
