[INFO] updating cached repository https://github.com/msvisser/ArithmeticCoding
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0c91a3baf21f232c4edef0efe5c02a6c3f28394
[INFO] testing msvisser/ArithmeticCoding against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsvisser%2FArithmeticCoding" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/msvisser/ArithmeticCoding on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/msvisser/ArithmeticCoding
[INFO] finished tweaking git repo https://github.com/msvisser/ArithmeticCoding
[INFO] tweaked toml for git repo https://github.com/msvisser/ArithmeticCoding written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/msvisser/ArithmeticCoding already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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] 6e29b875b111e307f0caec2bd8c09311ca9ed2a68cd19d3b851b53554453733a
[INFO] running `Command { std: "docker" "start" "-a" "6e29b875b111e307f0caec2bd8c09311ca9ed2a68cd19d3b851b53554453733a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e29b875b111e307f0caec2bd8c09311ca9ed2a68cd19d3b851b53554453733a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e29b875b111e307f0caec2bd8c09311ca9ed2a68cd19d3b851b53554453733a", kill_on_drop: false }`
[INFO] [stdout] 6e29b875b111e307f0caec2bd8c09311ca9ed2a68cd19d3b851b53554453733a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63f221b6737e6deae9af6591af69785f462d5ce8ec77a142146323442b6ec39d
[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" "63f221b6737e6deae9af6591af69785f462d5ce8ec77a142146323442b6ec39d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling arithmetic_coding v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/coding/encode.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     probability: Box<Probability>,
[INFO] [stdout]   |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[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/coding/encode.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(iter: I, probability: Box<Probability>) -> Self {
[INFO] [stdout]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/coding/decode.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     probability: Box<Probability>,
[INFO] [stdout]   |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/coding/decode.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(iter: I, probability: Box<Probability>) -> Self {
[INFO] [stdout]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/coding/range.rs:17:66
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn select_symbol(&mut self, symbol: usize, probability: &Probability) -> Self {
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:42:30
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let probability: Box<Probability> = if matches.is_present("first-order") {
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `cumulative` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/coding/probability/zero_order.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |             let previous_cumulative = cumulative.get(symbol).unwrap_or(&0);
[INFO] [stdout]    |                                       ---------- immutable borrow occurs here
[INFO] [stdout] 18 |             let previous_probability = probabilities.get(symbol).unwrap_or(&0);
[INFO] [stdout] 19 |             cumulative.push(previous_probability + previous_cumulative);
[INFO] [stdout]    |             ^^^^^^^^^^ mutable borrow occurs here  ------------------- immutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.97s
[INFO] running `Command { std: "docker" "inspect" "63f221b6737e6deae9af6591af69785f462d5ce8ec77a142146323442b6ec39d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63f221b6737e6deae9af6591af69785f462d5ce8ec77a142146323442b6ec39d", kill_on_drop: false }`
[INFO] [stdout] 63f221b6737e6deae9af6591af69785f462d5ce8ec77a142146323442b6ec39d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] deff5246158baa6858167a2c4544ef4fe1dfc021de3f25c41184e773e3c734a5
[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" "deff5246158baa6858167a2c4544ef4fe1dfc021de3f25c41184e773e3c734a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling arithmetic_coding v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/coding/encode.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     probability: Box<Probability>,
[INFO] [stdout]   |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[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/coding/encode.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(iter: I, probability: Box<Probability>) -> Self {
[INFO] [stdout]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/coding/decode.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     probability: Box<Probability>,
[INFO] [stdout]   |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/coding/decode.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(iter: I, probability: Box<Probability>) -> Self {
[INFO] [stdout]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/coding/range.rs:17:66
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn select_symbol(&mut self, symbol: usize, probability: &Probability) -> Self {
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:42:30
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let probability: Box<Probability> = if matches.is_present("first-order") {
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `cumulative` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/coding/probability/zero_order.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |             let previous_cumulative = cumulative.get(symbol).unwrap_or(&0);
[INFO] [stdout]    |                                       ---------- immutable borrow occurs here
[INFO] [stdout] 18 |             let previous_probability = probabilities.get(symbol).unwrap_or(&0);
[INFO] [stdout] 19 |             cumulative.push(previous_probability + previous_cumulative);
[INFO] [stdout]    |             ^^^^^^^^^^ mutable borrow occurs here  ------------------- immutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "deff5246158baa6858167a2c4544ef4fe1dfc021de3f25c41184e773e3c734a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deff5246158baa6858167a2c4544ef4fe1dfc021de3f25c41184e773e3c734a5", kill_on_drop: false }`
[INFO] [stdout] deff5246158baa6858167a2c4544ef4fe1dfc021de3f25c41184e773e3c734a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 16a024fcae94d88e4c5361dda06f1411d431830055417f7201826929e5c10956
[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" "16a024fcae94d88e4c5361dda06f1411d431830055417f7201826929e5c10956", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/coding/encode.rs:9:22
[INFO] [stderr]   |
[INFO] [stderr] 9 |     probability: Box<Probability>,
[INFO] [stderr]   |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/coding/encode.rs:16:42
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(iter: I, probability: Box<Probability>) -> Self {
[INFO] [stderr]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/coding/decode.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 |     probability: Box<Probability>,
[INFO] [stderr]   |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/coding/decode.rs:15:42
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(iter: I, probability: Box<Probability>) -> Self {
[INFO] [stderr]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/coding/range.rs:17:66
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn select_symbol(&mut self, symbol: usize, probability: &Probability) -> Self {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:42:30
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let probability: Box<Probability> = if matches.is_present("first-order") {
[INFO] [stderr]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn Probability`
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `cumulative` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/coding/probability/zero_order.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             let previous_cumulative = cumulative.get(symbol).unwrap_or(&0);
[INFO] [stderr]    |                                       ---------- immutable borrow occurs here
[INFO] [stderr] 18 |             let previous_probability = probabilities.get(symbol).unwrap_or(&0);
[INFO] [stderr] 19 |             cumulative.push(previous_probability + previous_cumulative);
[INFO] [stderr]    |             ^^^^^^^^^^ mutable borrow occurs here  ------------------- immutable borrow later used here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arithmetic_coding-ab3988a22f2f67d1
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "16a024fcae94d88e4c5361dda06f1411d431830055417f7201826929e5c10956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16a024fcae94d88e4c5361dda06f1411d431830055417f7201826929e5c10956", kill_on_drop: false }`
[INFO] [stdout] 16a024fcae94d88e4c5361dda06f1411d431830055417f7201826929e5c10956