[INFO] fetching crate lazy_transducer 0.2.1...
[INFO] checking lazy_transducer-0.2.1 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate lazy_transducer 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate lazy_transducer 0.2.1 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lazy_transducer 0.2.1
[INFO] finished tweaking crates.io crate lazy_transducer 0.2.1
[INFO] tweaked toml for crates.io crate lazy_transducer 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate lazy_transducer 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97a8c0a195559562965943d521dbba2f451e124c1671570fd63f85bfd7956c0b
[INFO] running `Command { std: "docker" "start" "-a" "97a8c0a195559562965943d521dbba2f451e124c1671570fd63f85bfd7956c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97a8c0a195559562965943d521dbba2f451e124c1671570fd63f85bfd7956c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97a8c0a195559562965943d521dbba2f451e124c1671570fd63f85bfd7956c0b", kill_on_drop: false }`
[INFO] [stdout] 97a8c0a195559562965943d521dbba2f451e124c1671570fd63f85bfd7956c0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af4d36278fe8a694f707de8611138e83075d753dd4029ce75a6c443bc1bbeef4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "af4d36278fe8a694f707de8611138e83075d753dd4029ce75a6c443bc1bbeef4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking thiserror v1.0.11
[INFO] [stderr]     Checking lazy_transducer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `LE`
[INFO] [stdout]  --> tests/test.rs:4:60
[INFO] [stdout]   |
[INFO] [stdout] 4 | use scroll::{IOread, IOwrite, Pread, Pwrite, SizeWith, BE, LE};
[INFO] [stdout]   |                                                            ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]  --> tests/test.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Cursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.46s
[INFO] running `Command { std: "docker" "inspect" "af4d36278fe8a694f707de8611138e83075d753dd4029ce75a6c443bc1bbeef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af4d36278fe8a694f707de8611138e83075d753dd4029ce75a6c443bc1bbeef4", kill_on_drop: false }`
[INFO] [stdout] af4d36278fe8a694f707de8611138e83075d753dd4029ce75a6c443bc1bbeef4