[INFO] fetching crate cbe_rbpf 0.2.38...
[INFO] checking cbe_rbpf-0.2.38 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate cbe_rbpf 0.2.38 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cbe_rbpf 0.2.38 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cbe_rbpf 0.2.38
[INFO] finished tweaking crates.io crate cbe_rbpf 0.2.38
[INFO] tweaked toml for crates.io crate cbe_rbpf 0.2.38 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate cbe_rbpf 0.2.38 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" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d620bfd745bdceab77746586544e833b04456f9b6ae63c5897e8051793191fe5
[INFO] running `Command { std: "docker" "start" "-a" "d620bfd745bdceab77746586544e833b04456f9b6ae63c5897e8051793191fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d620bfd745bdceab77746586544e833b04456f9b6ae63c5897e8051793191fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d620bfd745bdceab77746586544e833b04456f9b6ae63c5897e8051793191fe5", kill_on_drop: false }`
[INFO] [stdout] d620bfd745bdceab77746586544e833b04456f9b6ae63c5897e8051793191fe5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 215364fcb7e5c03f7c93834d047fbb524c1d9467753e9b0f0d0ac2535889bb19
[INFO] running `Command { std: "docker" "start" "-a" "215364fcb7e5c03f7c93834d047fbb524c1d9467753e9b0f0d0ac2535889bb19", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling scroll_derive v0.11.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking scroll v0.11.0
[INFO] [stderr]     Checking goblin v0.5.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking cbe_rbpf v0.2.38 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/static_analysis.rs:898:25
[INFO] [stdout]     |
[INFO] [stdout] 898 |                     let mut cfg_node = self.cfg_nodes.get_mut(b).unwrap();
[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: method `err_checked_div` is never used
[INFO] [stdout]   --> src/lib.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | trait ErrCheckedArithmetic: Sized {
[INFO] [stdout]    |       -------------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn err_checked_div(self, other: Self) -> Result<Self, ArithmeticOverflow>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TautologyVerifier` is never constructed
[INFO] [stdout]    --> src/verifier.rs:359:19
[INFO] [stdout]     |
[INFO] [stdout] 359 | pub(crate) struct TautologyVerifier {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `test_utils`
[INFO] [stdout]  --> tests/assembler.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate test_utils;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_utils`
[INFO] [stdout]   --> benches/vm_execution.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use test_utils::TautologyVerifier;
[INFO] [stdout]    |     ^^^^^^^^^^ use of undeclared crate or module `test_utils`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `test_utils`
[INFO] [stdout]   --> tests/misc.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate test_utils;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `test_utils`
[INFO] [stdout]   --> tests/ubpf_execution.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern crate test_utils;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `test_utils`
[INFO] [stdout]   --> benches/elf_loader.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate test_utils;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_utils`
[INFO] [stdout]   --> tests/ubpf_verifier.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use test_utils::TautologyVerifier;
[INFO] [stdout]    |     ^^^^^^^^^^ use of undeclared crate or module `test_utils`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cbe_rbpf` (test "misc") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cbe_rbpf` (bench "elf_loader") due to 1 previous error
[INFO] [stderr] error: could not compile `cbe_rbpf` (bench "vm_execution") due to 1 previous error
[INFO] [stderr] error: could not compile `cbe_rbpf` (test "assembler") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cbe_rbpf` (test "ubpf_verifier") due to 1 previous error
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/static_analysis.rs:898:25
[INFO] [stdout]     |
[INFO] [stdout] 898 |                     let mut cfg_node = self.cfg_nodes.get_mut(b).unwrap();
[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: method `err_checked_div` is never used
[INFO] [stdout]   --> src/lib.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | trait ErrCheckedArithmetic: Sized {
[INFO] [stdout]    |       -------------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn err_checked_div(self, other: Self) -> Result<Self, ArithmeticOverflow>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TautologyVerifier` is never constructed
[INFO] [stdout]    --> src/verifier.rs:359:19
[INFO] [stdout]     |
[INFO] [stdout] 359 | pub(crate) struct TautologyVerifier {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cbe_rbpf` (test "ubpf_execution") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "215364fcb7e5c03f7c93834d047fbb524c1d9467753e9b0f0d0ac2535889bb19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "215364fcb7e5c03f7c93834d047fbb524c1d9467753e9b0f0d0ac2535889bb19", kill_on_drop: false }`
[INFO] [stdout] 215364fcb7e5c03f7c93834d047fbb524c1d9467753e9b0f0d0ac2535889bb19
