[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] testing souvik1997/blkview against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Fblkview" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/souvik1997/blkview on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-10/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded palette v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 5b3a25129cde192b87caf992a2d30ca74086e5c344b509ab7c000a45517fcca4
[INFO] running `Command { std: "docker" "start" "-a" "5b3a25129cde192b87caf992a2d30ca74086e5c344b509ab7c000a45517fcca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b3a25129cde192b87caf992a2d30ca74086e5c344b509ab7c000a45517fcca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b3a25129cde192b87caf992a2d30ca74086e5c344b509ab7c000a45517fcca4", kill_on_drop: false }`
[INFO] [stdout] 5b3a25129cde192b87caf992a2d30ca74086e5c344b509ab7c000a45517fcca4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c8ce56c92b48ca440d1e0040a6146cd7e36497c9d644d65dca56fbc36b5cee2
[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" "3c8ce56c92b48ca440d1e0040a6146cd7e36497c9d644d65dca56fbc36b5cee2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling atty v0.2.8
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling palette v0.3.0
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num-bigint v0.1.43
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling num-derive v0.2.0
[INFO] [stderr]    Compiling 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.96s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c8ce56c92b48ca440d1e0040a6146cd7e36497c9d644d65dca56fbc36b5cee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c8ce56c92b48ca440d1e0040a6146cd7e36497c9d644d65dca56fbc36b5cee2", kill_on_drop: false }`
[INFO] [stdout] 3c8ce56c92b48ca440d1e0040a6146cd7e36497c9d644d65dca56fbc36b5cee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb171f2fcabd8a49585176a323b65df312d579a69705ac843aeb29202a52f472
[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" "fb171f2fcabd8a49585176a323b65df312d579a69705ac843aeb29202a52f472", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "fb171f2fcabd8a49585176a323b65df312d579a69705ac843aeb29202a52f472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb171f2fcabd8a49585176a323b65df312d579a69705ac843aeb29202a52f472", kill_on_drop: false }`
[INFO] [stdout] fb171f2fcabd8a49585176a323b65df312d579a69705ac843aeb29202a52f472
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 876cbc685369452f1bd94089329accc66443ced7d394a4e89a73b174aa951609
[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" "876cbc685369452f1bd94089329accc66443ced7d394a4e89a73b174aa951609", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/trace.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | / bitflags! {
[INFO] [stderr] 43 | |     pub struct Category: u16 {
[INFO] [stderr] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stderr] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/trace.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | / bitflags! {
[INFO] [stderr] 43 | |     pub struct Category: u16 {
[INFO] [stderr] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stderr] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/trace.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | / bitflags! {
[INFO] [stderr] 43 | |     pub struct Category: u16 {
[INFO] [stderr] 44 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stderr] 45 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the item `num` is imported redundantly
[INFO] [stderr]   --> src/trace.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         use super::num;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | extern crate num;
[INFO] [stderr]    | ----------------- the item `num` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/blkview-a4ebffadbb79667a
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "876cbc685369452f1bd94089329accc66443ced7d394a4e89a73b174aa951609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "876cbc685369452f1bd94089329accc66443ced7d394a4e89a73b174aa951609", kill_on_drop: false }`
[INFO] [stdout] 876cbc685369452f1bd94089329accc66443ced7d394a4e89a73b174aa951609