[INFO] cloning repository https://github.com/souvik1997/blkview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/souvik1997/blkview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Fblkview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Fblkview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] daeabbf51f0e08e2cb4c6818f235da511d45f9c2
[INFO] checking souvik1997/blkview against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Fblkview" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/souvik1997/blkview on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/souvik1997/blkview
[INFO] finished tweaking git repo https://github.com/souvik1997/blkview
[INFO] tweaked toml for git repo https://github.com/souvik1997/blkview written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/souvik1997/blkview already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e6d8ed46bb16f56b6480e43ea96728ba8250617c1ddcc53d7e37c3368296847
[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" "2e6d8ed46bb16f56b6480e43ea96728ba8250617c1ddcc53d7e37c3368296847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e6d8ed46bb16f56b6480e43ea96728ba8250617c1ddcc53d7e37c3368296847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e6d8ed46bb16f56b6480e43ea96728ba8250617c1ddcc53d7e37c3368296847", kill_on_drop: false }`
[INFO] [stdout] 2e6d8ed46bb16f56b6480e43ea96728ba8250617c1ddcc53d7e37c3368296847
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02ad1be1505f04766b0fd0f16ea77a6c52a8bae5b3080298a9ca9a1a8a12d66f
[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" "02ad1be1505f04766b0fd0f16ea77a6c52a8bae5b3080298a9ca9a1a8a12d66f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling palette v0.3.0
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling num-derive v0.2.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking blkview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trace.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / bitflags! {
[INFO] [stdout] 43 | |     pub struct Category: u16 {
[INFO] [stdout] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     }
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trace.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / bitflags! {
[INFO] [stdout] 43 | |     pub struct Category: u16 {
[INFO] [stdout] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     }
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trace.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / bitflags! {
[INFO] [stdout] 43 | |     pub struct Category: u16 {
[INFO] [stdout] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     }
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]   --> src/trace.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         use super::num;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | extern crate num;
[INFO] [stdout]    | ----------------- the item `num` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trace.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / bitflags! {
[INFO] [stdout] 43 | |     pub struct Category: u16 {
[INFO] [stdout] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     }
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trace.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / bitflags! {
[INFO] [stdout] 43 | |     pub struct Category: u16 {
[INFO] [stdout] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     }
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trace.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / bitflags! {
[INFO] [stdout] 43 | |     pub struct Category: u16 {
[INFO] [stdout] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     }
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]   --> src/trace.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         use super::num;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | extern crate num;
[INFO] [stdout]    | ----------------- the item `num` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[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 [unoptimized + debuginfo] target(s) in 33.14s
[INFO] running `Command { std: "docker" "inspect" "02ad1be1505f04766b0fd0f16ea77a6c52a8bae5b3080298a9ca9a1a8a12d66f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ad1be1505f04766b0fd0f16ea77a6c52a8bae5b3080298a9ca9a1a8a12d66f", kill_on_drop: false }`
[INFO] [stdout] 02ad1be1505f04766b0fd0f16ea77a6c52a8bae5b3080298a9ca9a1a8a12d66f