[INFO] fetching crate ldpc-toolbox 0.6.0...
[INFO] checking ldpc-toolbox-0.6.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ldpc-toolbox 0.6.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate ldpc-toolbox 0.6.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ldpc-toolbox 0.6.0
[INFO] finished tweaking crates.io crate ldpc-toolbox 0.6.0
[INFO] tweaked toml for crates.io crate ldpc-toolbox 0.6.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate ldpc-toolbox 0.6.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.48
[INFO] [stderr]   Downloaded termination v0.1.2
[INFO] [stderr]   Downloaded rand_distr v0.4.3
[INFO] [stderr]   Downloaded termination_attrib v0.1.1
[INFO] [stderr]   Downloaded enum-iterator-derive v1.2.1
[INFO] [stderr]   Downloaded ctrlc v3.4.1
[INFO] [stderr]   Downloaded enum-iterator v1.4.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.48
[INFO] [stderr]   Downloaded anstyle-wincon v2.1.0
[INFO] [stderr]   Downloaded anstream v0.5.0
[INFO] [stderr]   Downloaded anstyle v1.0.2
[INFO] [stderr]   Downloaded clap_builder v4.4.2
[INFO] [stderr]   Downloaded nix v0.27.1
[INFO] [stderr]   Downloaded syn v2.0.31
[INFO] [stderr]   Downloaded clap v4.4.2
[INFO] [stderr]   Downloaded matrixmultiply v0.3.7
[INFO] [stderr]   Downloaded libm v0.2.7
[INFO] [stderr]   Downloaded num-traits v0.2.16
[INFO] [stderr]   Downloaded rayon-core v1.11.0
[INFO] [stderr]   Downloaded rayon v1.7.0
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3de6aab439ac9c9f005cf58ea155c2c7d5df900e5f72e526c4462bcba0e47d81
[INFO] running `Command { std: "docker" "start" "-a" "3de6aab439ac9c9f005cf58ea155c2c7d5df900e5f72e526c4462bcba0e47d81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3de6aab439ac9c9f005cf58ea155c2c7d5df900e5f72e526c4462bcba0e47d81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de6aab439ac9c9f005cf58ea155c2c7d5df900e5f72e526c4462bcba0e47d81", kill_on_drop: false }`
[INFO] [stdout] 3de6aab439ac9c9f005cf58ea155c2c7d5df900e5f72e526c4462bcba0e47d81
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 218fa8ba4c478b0f91174251109c50d70e3a962617c8c753e15543959bed19dd
[INFO] running `Command { std: "docker" "start" "-a" "218fa8ba4c478b0f91174251109c50d70e3a962617c8c753e15543959bed19dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking anstyle v1.0.2
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]     Checking clap_builder v4.4.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking ctrlc v3.4.1
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling termination_attrib v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]    Compiling enum-iterator-derive v1.2.1
[INFO] [stderr]     Checking termination v0.1.2
[INFO] [stderr]     Checking enum-iterator v1.4.1
[INFO] [stderr]     Checking clap v4.4.2
[INFO] [stderr]     Checking ldpc-toolbox v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/c_api.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     convert::TryFrom,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]   --> src/c_api/decoder.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     convert::TryFrom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]   --> src/cli/ber.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     cli::*,
[INFO] [stdout]    |     ------ the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 28 |     error::Error,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]   --> src/cli/mackay_neal.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | use crate::cli::*;
[INFO] [stdout]    |     ------------- the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 41 | use std::error::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]   --> src/cli/peg.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::cli::*;
[INFO] [stdout]    |     ------------- the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 23 | use std::error::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rng` is imported redundantly
[INFO] [stdout]   --> src/mackay_neal.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 | use crate::rand::{Rng, *};
[INFO] [stdout]    |                   ^^^  - the item `Rng` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rng` is imported redundantly
[INFO] [stdout]   --> src/peg.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 | use crate::rand::{Rng, *};
[INFO] [stdout]    |                   ^^^  - the item `Rng` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `compare_some` is imported redundantly
[INFO] [stdout]   --> src/peg.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | use crate::util::{compare_some, *};
[INFO] [stdout]    |                   ^^^^^^^^^^^^  - the item `compare_some` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/c_api.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     convert::TryFrom,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]   --> src/c_api/decoder.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     convert::TryFrom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]   --> src/cli/ber.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     cli::*,
[INFO] [stdout]    |     ------ the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 28 |     error::Error,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]   --> src/cli/mackay_neal.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | use crate::cli::*;
[INFO] [stdout]    |     ------------- the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 41 | use std::error::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]   --> src/cli/peg.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::cli::*;
[INFO] [stdout]    |     ------------- the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 23 | use std::error::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rng` is imported redundantly
[INFO] [stdout]   --> src/mackay_neal.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 | use crate::rand::{Rng, *};
[INFO] [stdout]    |                   ^^^  - the item `Rng` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rng` is imported redundantly
[INFO] [stdout]   --> src/peg.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 | use crate::rand::{Rng, *};
[INFO] [stdout]    |                   ^^^  - the item `Rng` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `compare_some` is imported redundantly
[INFO] [stdout]   --> src/peg.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | use crate::util::{compare_some, *};
[INFO] [stdout]    |                   ^^^^^^^^^^^^  - the item `compare_some` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.20s
[INFO] running `Command { std: "docker" "inspect" "218fa8ba4c478b0f91174251109c50d70e3a962617c8c753e15543959bed19dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "218fa8ba4c478b0f91174251109c50d70e3a962617c8c753e15543959bed19dd", kill_on_drop: false }`
[INFO] [stdout] 218fa8ba4c478b0f91174251109c50d70e3a962617c8c753e15543959bed19dd