[INFO] cloning repository https://github.com/nambrot/coursera_crypto [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nambrot/coursera_crypto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnambrot%2Fcoursera_crypto", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnambrot%2Fcoursera_crypto'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4f295870c693139f4ed21fc910fd80a6464029ca [INFO] checking nambrot/coursera_crypto against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnambrot%2Fcoursera_crypto" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nambrot/coursera_crypto on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nambrot/coursera_crypto [INFO] finished tweaking git repo https://github.com/nambrot/coursera_crypto [INFO] tweaked toml for git repo https://github.com/nambrot/coursera_crypto written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/nambrot/coursera_crypto already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6f99f3874c8e56a918f370344d26f8180c2b4ef3bc3fa4b2de9427f6abab9fe3 [INFO] running `Command { std: "docker" "start" "-a" "6f99f3874c8e56a918f370344d26f8180c2b4ef3bc3fa4b2de9427f6abab9fe3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6f99f3874c8e56a918f370344d26f8180c2b4ef3bc3fa4b2de9427f6abab9fe3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f99f3874c8e56a918f370344d26f8180c2b4ef3bc3fa4b2de9427f6abab9fe3", kill_on_drop: false }` [INFO] [stdout] 6f99f3874c8e56a918f370344d26f8180c2b4ef3bc3fa4b2de9427f6abab9fe3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 48dd96191895039652e498a5ba1c6371afa5c1f5cce2bc7105b2a1b28f9c5c9b [INFO] running `Command { std: "docker" "start" "-a" "48dd96191895039652e498a5ba1c6371afa5c1f5cce2bc7105b2a1b28f9c5c9b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Checking futures v0.1.25 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking smallvec v0.6.9 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Compiling httparse v1.3.3 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Checking block-padding v0.1.3 [INFO] [stderr] Checking try-lock v0.2.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking string v0.1.3 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Checking opaque-debug v0.2.2 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking data-encoding v2.1.2 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Checking http v0.1.15 [INFO] [stderr] Checking tokio-executor v0.1.6 [INFO] [stderr] Checking tokio-io v0.1.11 [INFO] [stderr] Checking tokio-sync v0.1.1 [INFO] [stderr] Checking want v0.0.6 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking tokio-timer v0.2.10 [INFO] [stderr] Checking tokio-current-thread v0.1.4 [INFO] [stderr] Checking generic-array v0.12.0 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking digest v0.8.0 [INFO] [stderr] Checking block-buffer v0.7.0 [INFO] [stderr] Checking sha2 v0.8.0 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tokio-reactor v0.1.8 [INFO] [stderr] Checking crossbeam v0.6.0 [INFO] [stderr] Checking tokio-threadpool v0.1.11 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-fs v0.1.5 [INFO] [stderr] Checking h2 v0.1.16 [INFO] [stderr] Checking tokio v0.1.15 [INFO] [stderr] Checking hyper v0.12.24 [INFO] [stderr] Checking coursera_crypto v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: captured variable cannot escape `FnMut` closure body [INFO] [stdout] --> src/padding_oracle.rs:142:27 [INFO] [stdout] | [INFO] [stdout] 139 | let client = Client::new(); [INFO] [stdout] | ------ variable defined here [INFO] [stdout] ... [INFO] [stdout] 142 | .map(move |guess| create_request(guess, &client)) [INFO] [stdout] | - ^^^^^^^^^^^^^^^^^^^^^^^------^ [INFO] [stdout] | | | | [INFO] [stdout] | | | variable captured here [INFO] [stdout] | | returns a closure that contains a reference to a captured variable, which then escapes the closure body [INFO] [stdout] | inferred to be a `FnMut` closure [INFO] [stdout] | [INFO] [stdout] = note: `FnMut` closures only have access to their captured variables while they are executing... [INFO] [stdout] = note: ...therefore, they cannot allow references to captured variables to escape [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: captured variable cannot escape `FnMut` closure body [INFO] [stdout] --> src/padding_oracle.rs:142:27 [INFO] [stdout] | [INFO] [stdout] 139 | let client = Client::new(); [INFO] [stdout] | ------ variable defined here [INFO] [stdout] ... [INFO] [stdout] 142 | .map(move |guess| create_request(guess, &client)) [INFO] [stdout] | - ^^^^^^^^^^^^^^^^^^^^^^^------^ [INFO] [stdout] | | | | [INFO] [stdout] | | | variable captured here [INFO] [stdout] | | returns a closure that contains a reference to a captured variable, which then escapes the closure body [INFO] [stdout] | inferred to be a `FnMut` closure [INFO] [stdout] | [INFO] [stdout] = note: `FnMut` closures only have access to their captured variables while they are executing... [INFO] [stdout] = note: ...therefore, they cannot allow references to captured variables to escape [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: captured variable cannot escape `FnMut` closure body [INFO] [stdout] --> src/padding_oracle.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 158 | fn decode_block(cyphertext: Vec) -> impl Future, Error = String> { [INFO] [stdout] | ---------- variable defined here [INFO] [stdout] 159 | futures::stream::iter_ok(0..16).fold(vec![], move |plaintext, _index| { [INFO] [stdout] | - inferred to be a `FnMut` closure [INFO] [stdout] 160 | produce_guesses(&cyphertext, &plaintext) [INFO] [stdout] | ^ ---------- variable captured here [INFO] [stdout] | _________| [INFO] [stdout] | | [INFO] [stdout] 161 | | .and_then(execute_guesses) [INFO] [stdout] 162 | | .and_then(get_first_result) [INFO] [stdout] 163 | | .map(move |next_byte| { [INFO] [stdout] ... | [INFO] [stdout] 166 | | new_plaintext [INFO] [stdout] 167 | | }) [INFO] [stdout] | |______________^ returns a closure that contains a reference to a captured variable, which then escapes the closure body [INFO] [stdout] | [INFO] [stdout] = note: `FnMut` closures only have access to their captured variables while they are executing... [INFO] [stdout] = note: ...therefore, they cannot allow references to captured variables to escape [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: captured variable cannot escape `FnMut` closure body [INFO] [stdout] --> src/padding_oracle.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 158 | fn decode_block(cyphertext: Vec) -> impl Future, Error = String> { [INFO] [stdout] | ---------- variable defined here [INFO] [stdout] 159 | futures::stream::iter_ok(0..16).fold(vec![], move |plaintext, _index| { [INFO] [stdout] | - inferred to be a `FnMut` closure [INFO] [stdout] 160 | produce_guesses(&cyphertext, &plaintext) [INFO] [stdout] | ^ ---------- variable captured here [INFO] [stdout] | _________| [INFO] [stdout] | | [INFO] [stdout] 161 | | .and_then(execute_guesses) [INFO] [stdout] 162 | | .and_then(get_first_result) [INFO] [stdout] 163 | | .map(move |next_byte| { [INFO] [stdout] ... | [INFO] [stdout] 166 | | new_plaintext [INFO] [stdout] 167 | | }) [INFO] [stdout] | |______________^ returns a closure that contains a reference to a captured variable, which then escapes the closure body [INFO] [stdout] | [INFO] [stdout] = note: `FnMut` closures only have access to their captured variables while they are executing... [INFO] [stdout] = note: ...therefore, they cannot allow references to captured variables to escape [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing function parameter `plaintext` [INFO] [stdout] --> src/padding_oracle.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 160 | produce_guesses(&cyphertext, &plaintext) [INFO] [stdout] | ^ ---------- `plaintext` is borrowed here [INFO] [stdout] | _________| [INFO] [stdout] | | [INFO] [stdout] 161 | | .and_then(execute_guesses) [INFO] [stdout] 162 | | .and_then(get_first_result) [INFO] [stdout] 163 | | .map(move |next_byte| { [INFO] [stdout] ... | [INFO] [stdout] 166 | | new_plaintext [INFO] [stdout] 167 | | }) [INFO] [stdout] | |______________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing function parameter `plaintext` [INFO] [stdout] --> src/padding_oracle.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 160 | produce_guesses(&cyphertext, &plaintext) [INFO] [stdout] | ^ ---------- `plaintext` is borrowed here [INFO] [stdout] | _________| [INFO] [stdout] | | [INFO] [stdout] 161 | | .and_then(execute_guesses) [INFO] [stdout] 162 | | .and_then(get_first_result) [INFO] [stdout] 163 | | .map(move |next_byte| { [INFO] [stdout] ... | [INFO] [stdout] 166 | | new_plaintext [INFO] [stdout] 167 | | }) [INFO] [stdout] | |______________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0505]: cannot move out of `plaintext` because it is borrowed [INFO] [stdout] --> src/padding_oracle.rs:163:18 [INFO] [stdout] | [INFO] [stdout] 159 | futures::stream::iter_ok(0..16).fold(vec![], move |plaintext, _index| { [INFO] [stdout] | --------- - return type of closure `futures::Map, Error = String>, impl futures::Future, Error = String>, fn(Vec) -> impl futures::Future, Error = String> {execute_guesses}>, impl futures::Future, fn(Vec) -> impl futures::Future {get_first_result::}>, [closure@src/padding_oracle.rs:163:18: 163:34]>` contains a lifetime `'2` [INFO] [stdout] | | [INFO] [stdout] | binding `plaintext` declared here [INFO] [stdout] 160 | produce_guesses(&cyphertext, &plaintext) [INFO] [stdout] | - ---------- borrow of `plaintext` occurs here [INFO] [stdout] | _________| [INFO] [stdout] | | [INFO] [stdout] 161 | | .and_then(execute_guesses) [INFO] [stdout] 162 | | .and_then(get_first_result) [INFO] [stdout] 163 | | .map(move |next_byte| { [INFO] [stdout] | | ^^^^^^^^^^^^^^^^ move out of `plaintext` occurs here [INFO] [stdout] 164 | | let mut new_plaintext = plaintext.clone(); [INFO] [stdout] | | --------- move occurs due to use in closure [INFO] [stdout] 165 | | new_plaintext.push(next_byte); [INFO] [stdout] 166 | | new_plaintext [INFO] [stdout] 167 | | }) [INFO] [stdout] | |______________- returning this value requires that `plaintext` is borrowed for `'2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0505]: cannot move out of `plaintext` because it is borrowed [INFO] [stdout] --> src/padding_oracle.rs:163:18 [INFO] [stdout] | [INFO] [stdout] 159 | futures::stream::iter_ok(0..16).fold(vec![], move |plaintext, _index| { [INFO] [stdout] | --------- - return type of closure `futures::Map, Error = String>, impl futures::Future, Error = String>, fn(Vec) -> impl futures::Future, Error = String> {execute_guesses}>, impl futures::Future, fn(Vec) -> impl futures::Future {get_first_result::}>, [closure@src/padding_oracle.rs:163:18: 163:34]>` contains a lifetime `'2` [INFO] [stdout] | | [INFO] [stdout] | binding `plaintext` declared here [INFO] [stdout] 160 | produce_guesses(&cyphertext, &plaintext) [INFO] [stdout] | - ---------- borrow of `plaintext` occurs here [INFO] [stdout] | _________| [INFO] [stdout] | | [INFO] [stdout] 161 | | .and_then(execute_guesses) [INFO] [stdout] 162 | | .and_then(get_first_result) [INFO] [stdout] 163 | | .map(move |next_byte| { [INFO] [stdout] | | ^^^^^^^^^^^^^^^^ move out of `plaintext` occurs here [INFO] [stdout] 164 | | let mut new_plaintext = plaintext.clone(); [INFO] [stdout] | | --------- move occurs due to use in closure [INFO] [stdout] 165 | | new_plaintext.push(next_byte); [INFO] [stdout] 166 | | new_plaintext [INFO] [stdout] 167 | | }) [INFO] [stdout] | |______________- returning this value requires that `plaintext` is borrowed for `'2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0505, E0515. [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0505, E0515. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0505`. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0505`. [INFO] [stdout] [INFO] [stderr] error: could not compile `coursera_crypto` (bin "coursera_crypto") due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `coursera_crypto` (bin "coursera_crypto" test) due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "48dd96191895039652e498a5ba1c6371afa5c1f5cce2bc7105b2a1b28f9c5c9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48dd96191895039652e498a5ba1c6371afa5c1f5cce2bc7105b2a1b28f9c5c9b", kill_on_drop: false }` [INFO] [stdout] 48dd96191895039652e498a5ba1c6371afa5c1f5cce2bc7105b2a1b28f9c5c9b