[INFO] fetching crate s2n-codec 0.31.0...
[INFO] checking s2n-codec-0.31.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate s2n-codec 0.31.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate s2n-codec 0.31.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate s2n-codec 0.31.0
[INFO] finished tweaking crates.io crate s2n-codec 0.31.0
[INFO] tweaked toml for crates.io crate s2n-codec 0.31.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[INFO] [stderr]       Adding zerocopy v0.6.6 (latest: v0.7.32)
[INFO] [stderr]       Adding zerocopy-derive v0.6.6 (latest: v0.7.32)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bolero-generator-derive v0.10.0
[INFO] [stderr]   Downloaded bolero-generator v0.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fecd333a56533f5f011bacfa2df5d2303eabf6c51152a615171b9d6e7d0d081f
[INFO] running `Command { std: "docker" "start" "-a" "fecd333a56533f5f011bacfa2df5d2303eabf6c51152a615171b9d6e7d0d081f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fecd333a56533f5f011bacfa2df5d2303eabf6c51152a615171b9d6e7d0d081f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fecd333a56533f5f011bacfa2df5d2303eabf6c51152a615171b9d6e7d0d081f", kill_on_drop: false }`
[INFO] [stdout] fecd333a56533f5f011bacfa2df5d2303eabf6c51152a615171b9d6e7d0d081f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e47ae1b72e677d42ba86fdca835ed1a75ab4bbc4ae9c5596ac48df1f55207cd0
[INFO] running `Command { std: "docker" "start" "-a" "e47ae1b72e677d42ba86fdca835ed1a75ab4bbc4ae9c5596ac48df1f55207cd0", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling zerocopy-derive v0.6.6
[INFO] [stderr]     Checking zerocopy v0.6.6
[INFO] [stderr]     Checking s2n-codec v0.31.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/encoder/value.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use core::{convert::TryFrom, mem::size_of};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/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/encoder/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use core::convert::TryFrom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/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 `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/unaligned.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::{TryFrom, TryInto},
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/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 `TryInto` is imported redundantly
[INFO] [stdout]  --> src/unaligned.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::{TryFrom, TryInto},
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/encoder/value.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use core::{convert::TryFrom, mem::size_of};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/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/encoder/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use core::convert::TryFrom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/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 `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/unaligned.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::{TryFrom, TryInto},
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/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 `TryInto` is imported redundantly
[INFO] [stdout]  --> src/unaligned.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::{TryFrom, TryInto},
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "e47ae1b72e677d42ba86fdca835ed1a75ab4bbc4ae9c5596ac48df1f55207cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47ae1b72e677d42ba86fdca835ed1a75ab4bbc4ae9c5596ac48df1f55207cd0", kill_on_drop: false }`
[INFO] [stdout] e47ae1b72e677d42ba86fdca835ed1a75ab4bbc4ae9c5596ac48df1f55207cd0