[INFO] fetching crate py27-marshal 0.4.0...
[INFO] checking py27-marshal-0.4.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate py27-marshal 0.4.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate py27-marshal 0.4.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate py27-marshal 0.4.0
[INFO] finished tweaking crates.io crate py27-marshal 0.4.0
[INFO] tweaked toml for crates.io crate py27-marshal 0.4.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding num-derive v0.3.3 (latest: v0.4.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c15782a973aeedca5e698b890064c802dfa8411c9b194e00015251af601194b
[INFO] running `Command { std: "docker" "start" "-a" "0c15782a973aeedca5e698b890064c802dfa8411c9b194e00015251af601194b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c15782a973aeedca5e698b890064c802dfa8411c9b194e00015251af601194b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c15782a973aeedca5e698b890064c802dfa8411c9b194e00015251af601194b", kill_on_drop: false }`
[INFO] [stdout] 0c15782a973aeedca5e698b890064c802dfa8411c9b194e00015251af601194b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39472c10afbad3ad328e53d37b75f25f48904b9a4b2889c297facd617b2da215
[INFO] running `Command { std: "docker" "start" "-a" "39472c10afbad3ad328e53d37b75f25f48904b9a4b2889c297facd617b2da215", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking bstr v1.10.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking py27-marshal v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ByteSlice`
[INFO] [stdout]    --> src/lib.rs:540:25
[INFO] [stdout]     |
[INFO] [stdout] 540 |     use bstr::{BString, ByteSlice};
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:288:24
[INFO] [stdout]     |
[INFO] [stdout] 288 |             Self::Long(x) => Type::Long,
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:289:26
[INFO] [stdout]     |
[INFO] [stdout] 289 |             &Self::Float(x) => Type::Float,
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:290:28
[INFO] [stdout]     |
[INFO] [stdout] 290 |             &Self::Complex(x) => Type::Complex,
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:291:25
[INFO] [stdout]     |
[INFO] [stdout] 291 |             Self::Bytes(x) => Type::Bytes,
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:292:26
[INFO] [stdout]     |
[INFO] [stdout] 292 |             Self::String(x) => Type::String,
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:293:25
[INFO] [stdout]     |
[INFO] [stdout] 293 |             Self::Tuple(x) => Type::Tuple,
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:294:24
[INFO] [stdout]     |
[INFO] [stdout] 294 |             Self::List(x) => Type::List,
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:295:24
[INFO] [stdout]     |
[INFO] [stdout] 295 |             Self::Dict(x) => Type::Dict,
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:296:23
[INFO] [stdout]     |
[INFO] [stdout] 296 |             Self::Set(x) => Type::Set,
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:297:29
[INFO] [stdout]     |
[INFO] [stdout] 297 |             Self::FrozenSet(x) => Type::FrozenSet,
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:298:24
[INFO] [stdout]     |
[INFO] [stdout] 298 |             Self::Code(x) => Type::Code,
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `has_posonlyargcount` is never read
[INFO] [stdout]   --> src/read.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct RFile<R: Read> {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 56 |     has_posonlyargcount: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:288:24
[INFO] [stdout]     |
[INFO] [stdout] 288 |             Self::Long(x) => Type::Long,
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:289:26
[INFO] [stdout]     |
[INFO] [stdout] 289 |             &Self::Float(x) => Type::Float,
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:290:28
[INFO] [stdout]     |
[INFO] [stdout] 290 |             &Self::Complex(x) => Type::Complex,
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:291:25
[INFO] [stdout]     |
[INFO] [stdout] 291 |             Self::Bytes(x) => Type::Bytes,
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:292:26
[INFO] [stdout]     |
[INFO] [stdout] 292 |             Self::String(x) => Type::String,
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:293:25
[INFO] [stdout]     |
[INFO] [stdout] 293 |             Self::Tuple(x) => Type::Tuple,
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:294:24
[INFO] [stdout]     |
[INFO] [stdout] 294 |             Self::List(x) => Type::List,
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:295:24
[INFO] [stdout]     |
[INFO] [stdout] 295 |             Self::Dict(x) => Type::Dict,
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:296:23
[INFO] [stdout]     |
[INFO] [stdout] 296 |             Self::Set(x) => Type::Set,
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:297:29
[INFO] [stdout]     |
[INFO] [stdout] 297 |             Self::FrozenSet(x) => Type::FrozenSet,
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:298:24
[INFO] [stdout]     |
[INFO] [stdout] 298 |             Self::Code(x) => Type::Code,
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `has_posonlyargcount` is never read
[INFO] [stdout]   --> src/read.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct RFile<R: Read> {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 56 |     has_posonlyargcount: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `Command { std: "docker" "inspect" "39472c10afbad3ad328e53d37b75f25f48904b9a4b2889c297facd617b2da215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39472c10afbad3ad328e53d37b75f25f48904b9a4b2889c297facd617b2da215", kill_on_drop: false }`
[INFO] [stdout] 39472c10afbad3ad328e53d37b75f25f48904b9a4b2889c297facd617b2da215