[INFO] fetching crate isomagic 0.1.3...
[INFO] checking isomagic-0.1.3 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate isomagic 0.1.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate isomagic 0.1.3 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate isomagic 0.1.3
[INFO] finished tweaking crates.io crate isomagic 0.1.3
[INFO] tweaked toml for crates.io crate isomagic 0.1.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate isomagic 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v1.0.3
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded byteorder v1.2.4
[INFO] [stderr]   Downloaded inflate v0.4.3
[INFO] [stderr]   Downloaded png v0.12.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded lazy_static v1.1.0
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.9
[INFO] [stderr]   Downloaded nom v3.2.1
[INFO] [stderr]   Downloaded error-chain v0.12.0
[INFO] [stderr]   Downloaded log v0.4.3
[INFO] [stderr]   Downloaded cc v1.0.18
[INFO] [stderr]   Downloaded cfg-if v0.1.4
[INFO] [stderr]   Downloaded dot_vox v3.1.0
[INFO] [stderr]   Downloaded rayon v1.0.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.9
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded rayon-core v1.4.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.23
[INFO] [stderr]   Downloaded backtrace v0.3.9
[INFO] [stderr]   Downloaded memchr v1.0.2
[INFO] [stderr]   Downloaded syn v0.14.7
[INFO] [stderr]   Downloaded num-derive v0.2.2
[INFO] [stderr]   Downloaded structopt-derive v0.2.10
[INFO] [stderr]   Downloaded gif v0.10.0
[INFO] [stderr]   Downloaded quote v0.6.5
[INFO] [stderr]   Downloaded structopt v0.2.10
[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.40
[INFO] [stderr]   Downloaded winapi v0.3.5
[INFO] [stderr]   Downloaded deflate v0.7.18
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
[INFO] [stderr]   Downloaded arrayvec v0.4.7
[INFO] [stderr]   Downloaded nodrop v0.1.12
[INFO] [stderr]   Downloaded either v1.5.0
[INFO] [stderr]   Downloaded version_check v0.1.4
[INFO] [stderr]   Downloaded num-rational v0.1.42
[INFO] [stderr]   Downloaded num_cpus v1.8.0
[INFO] [stderr]   Downloaded image v0.19.0
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] [stderr]   Downloaded num-integer v0.1.39
[INFO] [stderr]   Downloaded num-traits v0.2.5
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded termion v1.5.1
[INFO] [stderr]   Downloaded clap v2.32.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a4b1d2dfb2c299e568ca1f3d9d1512777db33149d312b5773850dcf44b47cf6
[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" "2a4b1d2dfb2c299e568ca1f3d9d1512777db33149d312b5773850dcf44b47cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a4b1d2dfb2c299e568ca1f3d9d1512777db33149d312b5773850dcf44b47cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4b1d2dfb2c299e568ca1f3d9d1512777db33149d312b5773850dcf44b47cf6", kill_on_drop: false }`
[INFO] [stdout] 2a4b1d2dfb2c299e568ca1f3d9d1512777db33149d312b5773850dcf44b47cf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d5cadf507b6f1d8b678c64ee7f203b53e4df6182b19572f2ccda73a12aeb28c
[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" "4d5cadf507b6f1d8b678c64ee7f203b53e4df6182b19572f2ccda73a12aeb28c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling quote v0.6.5
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling syn v0.14.7
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking dot_vox v3.1.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking isomagic v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / error_chain!{
[INFO] [stdout] 34 | |     foreign_links {
[INFO] [stdout] 35 | |         Io(::std::io::Error);
[INFO] [stdout] 36 | |     }
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / error_chain!{
[INFO] [stdout] 34 | |     foreign_links {
[INFO] [stdout] 35 | |         Io(::std::io::Error);
[INFO] [stdout] 36 | |     }
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / error_chain!{
[INFO] [stdout] 34 | |     foreign_links {
[INFO] [stdout] 35 | |         Io(::std::io::Error);
[INFO] [stdout] 36 | |     }
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / error_chain!{
[INFO] [stdout] 34 | |     foreign_links {
[INFO] [stdout] 35 | |         Io(::std::io::Error);
[INFO] [stdout] 36 | |     }
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.02s
[INFO] running `Command { std: "docker" "inspect" "4d5cadf507b6f1d8b678c64ee7f203b53e4df6182b19572f2ccda73a12aeb28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d5cadf507b6f1d8b678c64ee7f203b53e4df6182b19572f2ccda73a12aeb28c", kill_on_drop: false }`
[INFO] [stdout] 4d5cadf507b6f1d8b678c64ee7f203b53e4df6182b19572f2ccda73a12aeb28c