[INFO] crate jam 0.0.1 is already in cache
[INFO] testing jam-0.0.1 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate jam 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate jam 0.0.1 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jam 0.0.1
[INFO] finished tweaking crates.io crate jam 0.0.1
[INFO] tweaked toml for crates.io crate jam 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbe55ebd985f9e229ae9ab903cce3833c357a06820de599e191844a821f22186
[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" "cbe55ebd985f9e229ae9ab903cce3833c357a06820de599e191844a821f22186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbe55ebd985f9e229ae9ab903cce3833c357a06820de599e191844a821f22186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbe55ebd985f9e229ae9ab903cce3833c357a06820de599e191844a821f22186", kill_on_drop: false }`
[INFO] [stdout] cbe55ebd985f9e229ae9ab903cce3833c357a06820de599e191844a821f22186
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae26830174ce6d632d628114ffd5f9462495727264ccb816286b52d06c986bd8
[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" "ae26830174ce6d632d628114ffd5f9462495727264ccb816286b52d06c986bd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling jam_derive v0.0.1
[INFO] [stderr]    Compiling bincode v0.7.0
[INFO] [stderr]    Compiling jam v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] " struct MusicService { some : u32 , } impl Service for MusicService { fn get ( & self , hash : u32 ) -> Result < u32 , Error > { match args . hash { 0 => Ok ( * self . some ) , _ => Err ( Error :: WrongNumber ) , } } fn set ( & mut self , hash : u32 ) -> Result < ( ) , Error > { * self . some = args . hash ; Ok ( ( ) ) } } "
[INFO] [stdout] # [ derive ( Serialize , Deserialize ) ] pub struct MusicServiceget { pub hash : u32 } # [ derive ( Serialize , Deserialize ) ] pub struct MusicServiceset { pub hash : u32 } pub struct MusicService { some : Arc < RefCell < u32 > > } # [ derive ( Serialize , Deserialize ) ] pub enum MusicServiceArgs { get ( MusicServiceget ) , set ( MusicServiceset ) } # [ derive ( Serialize , Deserialize ) ] pub enum MusicServiceRet { InvalidMethod , get ( Result < u32 , Error > ) , set ( Result < ( ) , Error > ) } impl Service for MusicService { fn process ( & mut self , input : & [ u8 ] ) -> Vec < u8 > { use bincode :: { serialize , deserialize , Infinite } ; let args : MusicServiceArgs = deserialize ( input ) . unwrap ( ) ; let mut ret : MusicServiceRet = MusicServiceRet :: InvalidMethod ; let ret = match args { MusicServiceArgs :: get ( args ) => { let tmp = { let mut self_some = self . some . borrow_mut ( ) ; { match args . hash { 0 => Ok ( * self_some ) , _ => Err ( Error :: WrongNumber ) , } } } ; MusicServiceRet :: get ( tmp ) } , MusicServiceArgs :: set ( args ) => { let tmp = { let mut self_some = self . some . borrow_mut ( ) ; { * self_some = args . hash ; Ok ( ( ) ) } } ; MusicServiceRet :: set ( tmp ) } } ; serialize ( & ret , Infinite ) . unwrap ( ) } }
[INFO] [stdout] # [ derive ( Serialize , Deserialize ) ] pub struct MusicServiceget { pub hash : u32 } # [ derive ( Serialize , Deserialize ) ] pub struct MusicServiceset { pub hash : u32 } pub struct MusicService { some : Arc < RefCell < u32 > > } # [ derive ( Serialize , Deserialize ) ] pub enum MusicServiceArgs { get ( MusicServiceget ) , set ( MusicServiceset ) } # [ derive ( Serialize , Deserialize ) ] pub enum MusicServiceRet { InvalidMethod , get ( Result < u32 , Error > ) , set ( Result < ( ) , Error > ) } impl Service for MusicService { fn process ( & mut self , input : & [ u8 ] ) -> Vec < u8 > { use bincode :: { serialize , deserialize , Infinite } ; let args : MusicServiceArgs = deserialize ( input ) . unwrap ( ) ; let mut ret : MusicServiceRet = MusicServiceRet :: InvalidMethod ; let ret = match args { MusicServiceArgs :: get ( args ) => { let tmp = { let mut self_some = self . some . borrow_mut ( ) ; { match args . hash { 0 => Ok ( * self_some ) , _ => Err ( Error :: WrongNumber ) , } } } ; MusicServiceRet :: get ( tmp ) } , MusicServiceArgs :: set ( args ) => { let tmp = { let mut self_some = self . some . borrow_mut ( ) ; { * self_some = args . hash ; Ok ( ( ) ) } } ; MusicServiceRet :: set ( tmp ) } } ; serialize ( & ret , Infinite ) . unwrap ( ) } }
[INFO] [stdout] warning: variant `field` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |                   field = (stringify!(|$($x)*|), 0).1
[INFO] [stdout]    |                   ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Field`
[INFO] [stdout] ...
[INFO] [stdout] 29 | / service!(
[INFO] [stdout] 30 | |     struct MusicService {
[INFO] [stdout] 31 | |         some: u32
[INFO] [stdout] 32 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |     }
[INFO] [stdout] 48 | | );
[INFO] [stdout]    | |__- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` 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: enum is never used: `DummyEnum`
[INFO] [stdout]   --> src/main.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |               enum DummyEnum {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 | / service!(
[INFO] [stdout] 30 | |     struct MusicService {
[INFO] [stdout] 31 | |         some: u32
[INFO] [stdout] 32 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |     }
[INFO] [stdout] 48 | | );
[INFO] [stdout]    | |__- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.66s
[INFO] running `Command { std: "docker" "inspect" "ae26830174ce6d632d628114ffd5f9462495727264ccb816286b52d06c986bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae26830174ce6d632d628114ffd5f9462495727264ccb816286b52d06c986bd8", kill_on_drop: false }`
[INFO] [stdout] ae26830174ce6d632d628114ffd5f9462495727264ccb816286b52d06c986bd8
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59ffcfe455b30ce4d32be5657973130ae3e138d0ac2af344bcf78c0ff054b5e9
[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" "59ffcfe455b30ce4d32be5657973130ae3e138d0ac2af344bcf78c0ff054b5e9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling jam v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] " struct MusicService { some : u32 , } impl Service for MusicService { fn get ( & self , hash : u32 ) -> Result < u32 , Error > { match args . hash { 0 => Ok ( * self . some ) , _ => Err ( Error :: WrongNumber ) , } } fn set ( & mut self , hash : u32 ) -> Result < ( ) , Error > { * self . some = args . hash ; Ok ( ( ) ) } } "
[INFO] [stdout] # [ derive ( Serialize , Deserialize ) ] pub struct MusicServiceget { pub hash : u32 } # [ derive ( Serialize , Deserialize ) ] pub struct MusicServiceset { pub hash : u32 } pub struct MusicService { some : Arc < RefCell < u32 > > } # [ derive ( Serialize , Deserialize ) ] pub enum MusicServiceArgs { get ( MusicServiceget ) , set ( MusicServiceset ) } # [ derive ( Serialize , Deserialize ) ] pub enum MusicServiceRet { InvalidMethod , get ( Result < u32 , Error > ) , set ( Result < ( ) , Error > ) } impl Service for MusicService { fn process ( & mut self , input : & [ u8 ] ) -> Vec < u8 > { use bincode :: { serialize , deserialize , Infinite } ; let args : MusicServiceArgs = deserialize ( input ) . unwrap ( ) ; let mut ret : MusicServiceRet = MusicServiceRet :: InvalidMethod ; let ret = match args { MusicServiceArgs :: get ( args ) => { let tmp = { let mut self_some = self . some . borrow_mut ( ) ; { match args . hash { 0 => Ok ( * self_some ) , _ => Err ( Error :: WrongNumber ) , } } } ; MusicServiceRet :: get ( tmp ) } , MusicServiceArgs :: set ( args ) => { let tmp = { let mut self_some = self . some . borrow_mut ( ) ; { * self_some = args . hash ; Ok ( ( ) ) } } ; MusicServiceRet :: set ( tmp ) } } ; serialize ( & ret , Infinite ) . unwrap ( ) } }
[INFO] [stdout] # [ derive ( Serialize , Deserialize ) ] pub struct MusicServiceget { pub hash : u32 } # [ derive ( Serialize , Deserialize ) ] pub struct MusicServiceset { pub hash : u32 } pub struct MusicService { some : Arc < RefCell < u32 > > } # [ derive ( Serialize , Deserialize ) ] pub enum MusicServiceArgs { get ( MusicServiceget ) , set ( MusicServiceset ) } # [ derive ( Serialize , Deserialize ) ] pub enum MusicServiceRet { InvalidMethod , get ( Result < u32 , Error > ) , set ( Result < ( ) , Error > ) } impl Service for MusicService { fn process ( & mut self , input : & [ u8 ] ) -> Vec < u8 > { use bincode :: { serialize , deserialize , Infinite } ; let args : MusicServiceArgs = deserialize ( input ) . unwrap ( ) ; let mut ret : MusicServiceRet = MusicServiceRet :: InvalidMethod ; let ret = match args { MusicServiceArgs :: get ( args ) => { let tmp = { let mut self_some = self . some . borrow_mut ( ) ; { match args . hash { 0 => Ok ( * self_some ) , _ => Err ( Error :: WrongNumber ) , } } } ; MusicServiceRet :: get ( tmp ) } , MusicServiceArgs :: set ( args ) => { let tmp = { let mut self_some = self . some . borrow_mut ( ) ; { * self_some = args . hash ; Ok ( ( ) ) } } ; MusicServiceRet :: set ( tmp ) } } ; serialize ( & ret , Infinite ) . unwrap ( ) } }
[INFO] [stdout] warning: variant `field` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |                   field = (stringify!(|$($x)*|), 0).1
[INFO] [stdout]    |                   ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Field`
[INFO] [stdout] ...
[INFO] [stdout] 29 | / service!(
[INFO] [stdout] 30 | |     struct MusicService {
[INFO] [stdout] 31 | |         some: u32
[INFO] [stdout] 32 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |     }
[INFO] [stdout] 48 | | );
[INFO] [stdout]    | |__- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` 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: enum is never used: `DummyEnum`
[INFO] [stdout]   --> src/main.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |               enum DummyEnum {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 | / service!(
[INFO] [stdout] 30 | |     struct MusicService {
[INFO] [stdout] 31 | |         some: u32
[INFO] [stdout] 32 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |     }
[INFO] [stdout] 48 | | );
[INFO] [stdout]    | |__- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "59ffcfe455b30ce4d32be5657973130ae3e138d0ac2af344bcf78c0ff054b5e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59ffcfe455b30ce4d32be5657973130ae3e138d0ac2af344bcf78c0ff054b5e9", kill_on_drop: false }`
[INFO] [stdout] 59ffcfe455b30ce4d32be5657973130ae3e138d0ac2af344bcf78c0ff054b5e9
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e8a4f694e6eb8909568ec9decac8b856557fccdf8143168c838959c55354b50
[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" "1e8a4f694e6eb8909568ec9decac8b856557fccdf8143168c838959c55354b50", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variant `field` should have an upper camel case name
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:15:17
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 15 |                   field = (stringify!(|$($x)*|), 0).1
[INFO] [stdout] 
[INFO] [stderr]    |                   ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Field`
[INFO] [stderr] ...
[INFO] [stderr] 29 | / service!(
[INFO] [stderr] 30 | |     struct MusicService {
[INFO] [stderr] 31 | |         some: u32
[INFO] [stderr] 32 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |     }
[INFO] [stderr] 48 | | );
[INFO] [stderr]    | |__- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` 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: enum is never used: `DummyEnum`
[INFO] [stderr]   --> src/main.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |               enum DummyEnum {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 29 | / service!(
[INFO] [stderr] 30 | |     struct MusicService {
[INFO] [stderr] 31 | |         some: u32
[INFO] [stderr] 32 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |     }
[INFO] [stderr] 48 | | );
[INFO] [stderr]    | |__- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` 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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/jam-f497c92602afa035
[INFO] running `Command { std: "docker" "inspect" "1e8a4f694e6eb8909568ec9decac8b856557fccdf8143168c838959c55354b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8a4f694e6eb8909568ec9decac8b856557fccdf8143168c838959c55354b50", kill_on_drop: false }`
[INFO] [stdout] 1e8a4f694e6eb8909568ec9decac8b856557fccdf8143168c838959c55354b50