[INFO] cloning repository https://github.com/souvik1997/fsbench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/souvik1997/fsbench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Ffsbench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Ffsbench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77cc337e9e88a07ae9381abb4710f4c1b4ae2423
[INFO] testing souvik1997/fsbench against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Ffsbench" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/souvik1997/fsbench on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/souvik1997/fsbench
[INFO] finished tweaking git repo https://github.com/souvik1997/fsbench
[INFO] tweaked toml for git repo https://github.com/souvik1997/fsbench written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/souvik1997/fsbench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a1c9faf8fc12a3789eb80601a06a11b4b9965eab99d70be520ea08dad66c67a
[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" "9a1c9faf8fc12a3789eb80601a06a11b4b9965eab99d70be520ea08dad66c67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a1c9faf8fc12a3789eb80601a06a11b4b9965eab99d70be520ea08dad66c67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a1c9faf8fc12a3789eb80601a06a11b4b9965eab99d70be520ea08dad66c67a", kill_on_drop: false }`
[INFO] [stdout] 9a1c9faf8fc12a3789eb80601a06a11b4b9965eab99d70be520ea08dad66c67a
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71709ac8de68a406210bc417cdf872fecef7706cf8e9887123545dfcd22ae809
[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" "71709ac8de68a406210bc417cdf872fecef7706cf8e9887123545dfcd22ae809", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.29
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling colored v1.6.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling remove_dir_all v0.3.0
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling tempdir v0.3.6
[INFO] [stderr]    Compiling clap v2.29.2
[INFO] [stderr]    Compiling fern v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.0
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling rayon v1.0.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling serde_derive_internals v0.20.0
[INFO] [stderr]    Compiling num-derive v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.29
[INFO] [stderr]    Compiling serde_json v1.0.11
[INFO] [stderr]    Compiling fsbench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(duration_extras)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/fsbench/blktrace/trace.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / bitflags! {
[INFO] [stdout] 34 | |     pub struct Category: u16 {
[INFO] [stdout] 35 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 36 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 53 | |     }
[INFO] [stdout] 54 | | }
[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 item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/fsbench/blktrace/trace.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / bitflags! {
[INFO] [stdout] 34 | |     pub struct Category: u16 {
[INFO] [stdout] 35 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 36 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 53 | |     }
[INFO] [stdout] 54 | | }
[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 item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/fsbench/blktrace/trace.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / bitflags! {
[INFO] [stdout] 34 | |     pub struct Category: u16 {
[INFO] [stdout] 35 | |         const READ    = 1 << 0;    /* reads */
[INFO] [stdout] 36 | |         const WRITE    = 1 << 1;    /* writes */
[INFO] [stdout] ...  |
[INFO] [stdout] 53 | |     }
[INFO] [stdout] 54 | | }
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/benchmarks/create.rs:22:62
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn load<P: AsRef<Path>>(path: P) -> Result<Self, Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/benchmarks/create.rs:63:62
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn load<P: AsRef<Path>>(path: P) -> Result<Self, Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/benchmarks/create.rs:94:62
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn load<P: AsRef<Path>>(path: P) -> Result<Self, Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/benchmarks/create.rs:255:13
[INFO] [stdout]     |
[INFO] [stdout] 255 |         use super::rand;
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/main.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout] 9   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/benchmarks/delete.rs:33:62
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn load<P: AsRef<Path>>(path: P) -> Result<Self, Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/benchmarks/delete.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::serde_json;
[INFO] [stdout]    |     ----------------- the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 34 |         use super::serde_json;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/benchmarks/delete.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         use super::rand;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/benchmarks/rename.rs:34:62
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn load<P: AsRef<Path>>(path: P) -> Result<Self, Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/benchmarks/rename.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use super::serde_json;
[INFO] [stdout]    |     ----------------- the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 35 |         use super::serde_json;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/benchmarks/listdir.rs:34:62
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn load<P: AsRef<Path>>(path: P) -> Result<Self, Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/benchmarks/listdir.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use super::serde_json;
[INFO] [stdout]    |     ----------------- the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 35 |         use super::serde_json;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]   --> src/fsbench/blktrace/trace.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         use num;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate num;
[INFO] [stdout]    | ----------------- the item `num` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]    --> src/fsbench/blktrace/trace.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         use std::process::Command;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fsbench`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "71709ac8de68a406210bc417cdf872fecef7706cf8e9887123545dfcd22ae809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71709ac8de68a406210bc417cdf872fecef7706cf8e9887123545dfcd22ae809", kill_on_drop: false }`
[INFO] [stdout] 71709ac8de68a406210bc417cdf872fecef7706cf8e9887123545dfcd22ae809