[INFO] fetching crate tetsy-scale-codec 1.3.0...
[INFO] checking tetsy-scale-codec-1.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tetsy-scale-codec 1.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate tetsy-scale-codec 1.3.0 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 tetsy-scale-codec 1.3.0
[INFO] finished tweaking crates.io crate tetsy-scale-codec 1.3.0
[INFO] tweaked toml for crates.io crate tetsy-scale-codec 1.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 80 packages
[INFO] [stderr]       Adding arrayvec v0.5.2 (latest: v0.7.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding bitvec v0.17.4 (latest: v1.0.1)
[INFO] [stderr]       Adding byte-slice-cast v0.3.5 (latest: v1.2.2)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding criterion v0.3.6 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.4.5 (latest: v0.5.0)
[INFO] [stderr]       Adding env_logger v0.7.1 (latest: v0.11.3)
[INFO] [stderr]       Adding generic-array v0.13.3 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding half v1.8.3 (latest: v2.4.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding proc-macro-crate v0.1.5 (latest: v3.1.0)
[INFO] [stderr]       Adding quickcheck v0.9.2 (latest: v1.0.3)
[INFO] [stderr]       Adding radium v0.3.0 (latest: v1.1.0)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding tetsy-scale-codec-derive v1.2.0 (latest: v2.0.1)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded radium v0.3.0
[INFO] [stderr]   Downloaded quickcheck v0.9.2
[INFO] [stderr]   Downloaded bitvec v0.17.4
[INFO] [stderr]   Downloaded tetsy-scale-codec-derive v1.2.0
[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] 29366af6fe02be26e10e1d8e19e2fdc9523a805a7353070145d706bc0a37e459
[INFO] running `Command { std: "docker" "start" "-a" "29366af6fe02be26e10e1d8e19e2fdc9523a805a7353070145d706bc0a37e459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29366af6fe02be26e10e1d8e19e2fdc9523a805a7353070145d706bc0a37e459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29366af6fe02be26e10e1d8e19e2fdc9523a805a7353070145d706bc0a37e459", kill_on_drop: false }`
[INFO] [stdout] 29366af6fe02be26e10e1d8e19e2fdc9523a805a7353070145d706bc0a37e459
[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] 9d84e3bc5166f10e16b0d670c9247a4900b5f03795f9af57d621f7fb585a9452
[INFO] running `Command { std: "docker" "start" "-a" "9d84e3bc5166f10e16b0d670c9247a4900b5f03795f9af57d621f7fb585a9452", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking tetsy-scale-codec v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stdout] warning: the item `Box` is imported redundantly
[INFO] [stdout]   --> src/codec.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     boxed::Box,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Box` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToOwned` is imported redundantly
[INFO] [stdout]   --> src/codec.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 |     borrow::{Cow, ToOwned},
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToOwned` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/compact.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::alloc::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Extend` is imported redundantly
[INFO] [stdout]   --> src/joiner.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use core::iter::Extend;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Extend` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Extend` is imported redundantly
[INFO] [stdout]   --> src/keyedvec.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use core::iter::Extend;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Extend` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/keyedvec.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::alloc::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ExactSizeIterator` is imported redundantly
[INFO] [stdout]   --> src/encode_append.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | use core::{iter::ExactSizeIterator, mem};
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ExactSizeIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/encode_append.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::alloc::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling tetsy-scale-codec-derive v1.2.0
[INFO] [stdout] warning: use of deprecated method `criterion::Criterion::<M>::bench_function_over_inputs`: Please use BenchmarkGroups instead.
[INFO] [stdout]    --> benches/benches.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 |     c.bench_function_over_inputs(&format!("vec_encode_{}", type_name::<T>()), |b, &vec_size| {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `criterion::Criterion::<M>::bench_function_over_inputs`: Please use BenchmarkGroups instead.
[INFO] [stdout]    --> benches/benches.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 |     c.bench_function_over_inputs(&format!("vec_decode_{}", type_name::<T>()), |b, &vec_size| {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `criterion::Criterion::<M>::bench_function_over_inputs`: Please use BenchmarkGroups instead.
[INFO] [stdout]    --> benches/benches.rs:146:4
[INFO] [stdout]     |
[INFO] [stdout] 146 |     c.bench_function_over_inputs("vec_encode_complex_type", move |b, &vec_size| {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `criterion::Criterion::<M>::bench_function_over_inputs`: Please use BenchmarkGroups instead.
[INFO] [stdout]    --> benches/benches.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 |     c.bench_function_over_inputs("vec_decode_complex_type", move |b, &vec_size| {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Box` is imported redundantly
[INFO] [stdout]   --> src/codec.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     boxed::Box,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Box` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToOwned` is imported redundantly
[INFO] [stdout]   --> src/codec.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 |     borrow::{Cow, ToOwned},
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToOwned` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]     --> src/codec.rs:1131:6
[INFO] [stdout]      |
[INFO] [stdout] 1130 |     use super::*;
[INFO] [stdout]      |         -------- the item `Cow` is already imported here
[INFO] [stdout] 1131 |     use std::borrow::Cow;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Extend` is imported redundantly
[INFO] [stdout]   --> src/joiner.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use core::iter::Extend;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Extend` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Extend` is imported redundantly
[INFO] [stdout]   --> src/keyedvec.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use core::iter::Extend;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Extend` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/keyedvec.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::alloc::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ExactSizeIterator` is imported redundantly
[INFO] [stdout]   --> src/encode_append.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | use core::{iter::ExactSizeIterator, mem};
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ExactSizeIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Encode` is imported redundantly
[INFO] [stdout]    --> src/encode_append.rs:177:21
[INFO] [stdout]     |
[INFO] [stdout] 176 |     use super::*;
[INFO] [stdout]     |         -------- the item `Encode` is already imported here
[INFO] [stdout] 177 |     use crate::{Input, Encode, EncodeLike};
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `EncodeLike` is imported redundantly
[INFO] [stdout]    --> src/encode_append.rs:177:29
[INFO] [stdout]     |
[INFO] [stdout] 176 |     use super::*;
[INFO] [stdout]     |         -------- the item `EncodeLike` is already imported here
[INFO] [stdout] 177 |     use crate::{Input, Encode, EncodeLike};
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/encode_append.rs:239:30
[INFO] [stdout]     |
[INFO] [stdout] 239 |         struct NoCopy { data: u32 };
[INFO] [stdout]     |                                    ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.57s
[INFO] running `Command { std: "docker" "inspect" "9d84e3bc5166f10e16b0d670c9247a4900b5f03795f9af57d621f7fb585a9452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d84e3bc5166f10e16b0d670c9247a4900b5f03795f9af57d621f7fb585a9452", kill_on_drop: false }`
[INFO] [stdout] 9d84e3bc5166f10e16b0d670c9247a4900b5f03795f9af57d621f7fb585a9452