[INFO] fetching crate isomagic 0.1.3...
[INFO] checking isomagic-0.1.3 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate isomagic 0.1.3 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate isomagic 0.1.3 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-87/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--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-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b16cd088c1dc6c51fa8d885c85a3f8d037616cd8a583b94f18497db7b6cb9b10
[INFO] running `Command { std: "docker" "start" "-a" "b16cd088c1dc6c51fa8d885c85a3f8d037616cd8a583b94f18497db7b6cb9b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b16cd088c1dc6c51fa8d885c85a3f8d037616cd8a583b94f18497db7b6cb9b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b16cd088c1dc6c51fa8d885c85a3f8d037616cd8a583b94f18497db7b6cb9b10", kill_on_drop: false }`
[INFO] [stdout] b16cd088c1dc6c51fa8d885c85a3f8d037616cd8a583b94f18497db7b6cb9b10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f8f71104ae40a352ee0b1d780c7102bac12760ea7a728acdfab56ab29bb432
[INFO] running `Command { std: "docker" "start" "-a" "15f8f71104ae40a352ee0b1d780c7102bac12760ea7a728acdfab56ab29bb432", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[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 gif v0.10.0
[INFO] [stderr]     Checking textwrap v0.10.0
[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 atty v0.2.11
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]    Compiling syn v0.14.7
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking dot_vox v3.1.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling num-derive v0.2.2
[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: 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::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 11.31s
[INFO] running `Command { std: "docker" "inspect" "15f8f71104ae40a352ee0b1d780c7102bac12760ea7a728acdfab56ab29bb432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f8f71104ae40a352ee0b1d780c7102bac12760ea7a728acdfab56ab29bb432", kill_on_drop: false }`
[INFO] [stdout] 15f8f71104ae40a352ee0b1d780c7102bac12760ea7a728acdfab56ab29bb432